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Managed switch
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NS4702-24P-4X-V2
Managed Switch User
Manual
P/N 1073707-EN • REV B • ISS 06OCT22

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Summary of Contents for ifs NS4702-24P-4X-V2

  • Page 1 NS4702-24P-4X-V2 Managed Switch User Manual P/N 1073707-EN • REV B • ISS 06OCT22...
  • Page 2 Trademarks and patents IFS and associated names and logos are a product brand of Aritech, a part of Carrier. Other trade names used in this document may be trademarks or registered trademarks of the manufacturers or vendors of the respective products.
  • Page 3 Product documentation Please consult the following web link to retrieve the electronic version of the product documentation.

  • Page 5: Table Of Contents

    Access Control Lists (ACL) 231 Authentication 247 Security 289 MAC address table 308 LLDP 312 Network diagnostics 326 Loop protection 330 RMON 332 Ring 341 Power over Ethernet (PoE) 354 Port identification 368 LCD 368 NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 6 Address table 370 Learning 370 Forwarding and filtering 370 Store-and-forward 370 Auto-negotiation 371 Chapter 6 PoE overview 372 What is PoE? 372 PoE system architecture 372 Chapter 7 Troubleshooting 374 Appendix A Networking connection 375 Glossary 377 NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 7: Important Information

    COVENANT OR PROMISE THAT ITS PRODUCTS (INCLUDING SECURITY PRODUCTS), SOFTWARE, SERVICES OR OTHER OFFERINGS WILL NOT BE HACKED, COMPROMISED AND/OR CIRCUMVENTED. CARRIER DOES NOT ENCRYPT COMMUNICATIONS BETWEEN ITS ALARM OR OTHER CONTROL PANELS AND THEIR WIRELESS OUTPUTS/INPUTS INCLUDING NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 8 CARRIER DOES NOT WARRANT THAT ANY PRODUCT (INCLUDING SECURITY PRODUCTS), SOFTWARE OR SERVICE MANUFACTURED, SOLD OR LICENSED BY CARRIER WILL PREVENT, OR IN ALL CASES PROVIDE ADEQUATE WARNING OF OR PROTECTION FROM, BREAK-INS, BURGLARY, ROBBERY, FIRE, OR OTHERWISE. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 9 Note: Note messages advise you of the possible loss of time or effort. They describe how to avoid the loss. Notes are also used to point out important information that you should read. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 10: Introduction

    Chapter 1 Introduction The IFS NS4702-24P-4X-V2 24-port 10/100/1000Mbps 802.3at PoE + 4-Port 10G SFP+ managed switch with hardware layer 3 IPv4/IPv6 static routing comes with a multi-port gigabit ethernet switch, SFP fiber optic connectibility, and robust layer 2 features. The description of this model is as follows: ...

  • Page 11: Product Description

    Product description PoE+ managed switch with advanced L2+/L4 switching and security The NS4702-24P-4X-V2 is a cost-optimized, 1.25U, Gigabit PoE+ Managed Switch with an LCD Touch Screen featuring intelligent PoE functions to improve the availability of critical business applications. The managed switch provides IPv6/IPv4 dual stack...
  • Page 12 PoE port power and puts the PD back to work. The managed switch greatly enhances the network reliability through the PoE port resetting the PD’s power source and reducing the administrator management burden. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 13 PoE power feeding for each PoE port during specified time intervals, and is a powerful function to help SMBs or enterprises save power and money. It also increases security by powering off PDs that should not be in use during non-business hours. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 14 IP surveillance, VoIP, and wireless service providers to deploy the IPv6 network. More importantly, they help SMBs upgrade their network infrastructures to the IPv6 era without any monetary investment. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 15 (ACL) for enforcing security to the edge. It can be used to restrict network access by denying packets based on source and destination IP address, TCP/UDP ports, or defined typical network applications. Its protection mechanism also comprises 802.1x NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 16 The managed switch series supports a SFP-DDM (Digital Diagnostic Monitor) function that can easily monitor real-time parameters of the SFP and SFP+ transceivers, such as optical output power, optical input power, temperature, laser bias current, and transceiver supply voltage. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 17 It also features a built-in, robust IPv4/IPv6 layer 3 traffic static routing protocol to ensure reliable routing between VLANs and network segments. The routing protocols can be applied by VLAN interface with up to 32 routing entries. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 18 IEEE 802.3at PoE end-nodes like PTZ (Pan, Tilt & Zoom) network cameras and speed dome cameras. The managed switch can easily help enterprises with the available network infrastructure to build wireless AP, IP camera, and VoIP systems where power can be centrally controlled. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 19: Product Features

    Supports PoE power up to 30 W for each PoE port. • Auto detects powered device (PD). • Circuit protection prevents power interference between ports. • Remote power feeding up to 100 meters. • PoE management: • Total PoE power budget control NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 20 MSTP, IEEE 802.1s Multiple Spanning Tree Protocol, spanning tree by VLAN • BPDU Guard Supports link aggregation • IEEE 802.3ad Link Aggregation Control Protocol (LACP) • Cisco ether-channel (static trunk) • Maximum 14 trunk groups, up to four ports per trunk group NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 21 − IEEE 802.1x Port-Based / MAC-Based network access authentication − Built-in RADIUS client to co-operate with the RADIUS servers − TACACS+ login users access authentication − RADIUS / TACACS+ users access authentication • Access Control List (ACL) NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 22 Link Layer Discovery Protocol (LLDP) and LLDP-MED • Smart discovery utility for deploy management • Network diagnostic − ICMPv6/ICMPv4 remote ping − Cable diagnostic technology provides the mechanism to detect and report potential cabling issues NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 23: Product Specifications

    Dimensions (W x D x H) 440 x 300 x 56 mm, 1.25U height Weight 4.64 kg Power Consumption Max. 488 W / 1665.13 BTU Power Requirement AC 100~240 V, 50/60 Hz, 7 A ESD Protection 6K VDC NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 24 – 802.1p priority – 802.1Q VLAN tag – DSCP/ToS field in IP packet IGMP (v1/v2/v3) snooping, up to 255 multicast groups IGMP Snooping IGMP querier mode support MLD Snooping MLD (v1/v2) snooping, up to 255 multicast groups NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 25 IEEE 802.1w Rapid Spanning Tree Protocol IEEE 802.1s Multiple Spanning Tree Protocol IEEE 802.1p Class of Service Environment Temperature: 0 to 50°C Operating Relative Humidity: 5 to 95% (non-condensing) Temperature: -10 to 70°C Storage Relative Humidity: 5 to 95% (non-condensing) NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 26: Installation

    The included DB9 to RJ45 console cable connects to the console port on the device. After making the connection, users can run any terminal emulation program (Hyper Terminal, ProComm Plus, Telix, Winterm, and so on) to enter the startup screen of the device NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 27 Blinking: indicates that the switch is actively sending or receiving data over that port. Orange Lit: indicates the port is providing DC in-line power. Off: indicates that the connected device is not a PoE Powered Device (PD).. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 28 1. Attach the rubber feet to the recessed areas on the bottom of the managed switch. 2. Place the managed switch on the desktop or the shelf near an AC power source, as shown below: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 29 1. Place the managed switch on a hard, flat surface with the front panel positioned towards the front side. 2. Attach the rack-mount bracket to each side of the managed switch with the supplied screws as shown below. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 30 Installing the SFP/SFP+ transceiver SFP/SFP+ transceivers are hot-pluggable and hot-swappable. They can be plugged in and removed to/from any SFP/SFP+ port without having to power down the managed switch (see below). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 31 Chapter 2: Installation Approved IFS SFP transceivers The managed switch supports both single mode and multi-mode SFP transceivers. The following list of approved IFS SFP transceivers is valid as of the time of publication: Optical Optical Receiver Fiber # of...
  • Page 32 0 to +50°C 0 ~ +5 Mode (37 mi.) 1490 nm (32 to 122°F) S30-1SLC/B- Single 60 km 1490 / 0 to +50°C 0 ~ +5 Mode (37 mi.) 1310 nm (32 to 122°F) 10GBase-SR SFP+ NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 33 * Note: High Power Optic. There must be a minimum of 5 dB of optical loss to the fiber for proper operation. Note: We recommend the use of IFS SFPs on the managed switch. If you insert an SFP transceiver that is not supported, the managed switch will not recognize it.
  • Page 34 Never pull out the module without making use of the lever or the push bolts on the module. Removing the module with force could damage the module and the SFP/SFP+ module slot of the managed switch. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 35: Switch Management

    Management access overview The managed switch provides the flexibility to access and manage it using any or all of the following methods: • An administration console • Web browser interface • An external SNMP-based network management application NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 36: Administration Console

    Using this method, you can view the administration console from a terminal, a computer, or workstation connected to the managed switch's console (serial) port. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 37 A computer attachment can use any terminal emulation program for connecting to the terminal serial port. A workstation attachment under UNIX can use an emulator such as TIP. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 38: Web Management

    MIBs. However, if it only knows the get community string, it can only read MIBs. The default get and set community strings for the managed switch are public. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 39: Web Configuration

    If the default IP address of the managed switch has been changed to 192.168.1.1 with subnet mask 255.255.255.0 via the console, then the administrator computer should be set at 192.168.1.x (where x is a number between 2 and 254) to do the relative configuration on a manager computer. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 40 The main menu on the left side of the web page permits access to all the functions and status provided by the managed switch. Note: For security purposes, change and memorize the new password after this first setup. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 41: Main Web

    The administrator can set up the managed switch by making selections from the main functions menu. Clicking on a main menu item opens sub menus. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 42: System

    This page provides an overview of the privilege levels. NTP Configuration Configure NTP server on this page. Time Configuration Configure time parameter on this page. UPnP Configure UPnP on this page. DHCP Relay Configure DHCP Relay on this page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 43 You can restart the managed switch on this page. After restarting, the managed switch will boot normally. System information The System Infomation page provides information on the current device such as the hardware MAC address, software version, and system uptime. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 44 IP configuration. The maximum number of interfaces supported is 128 and the maximum number of routes is 32. The current column is used to show the active IP configuration. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 45 From any DHCPv6 interfaces – The first DNS server offered from a DHCPv6 lease to a DHCPv6-enabled interface will be used. From this DHCPv6 interface – Specify from which DHCPv6-enabled interface a provided DNS server should be preferred. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 46 Rapid Commit option is received. This option is only manageable when the DHCPv6 client is enabled. Current For DHCPv6 interface with an active lease, this column Lease shows the interface address provided by the DHCPv6 server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 47 Add Route to add a new IP route. A maximum of 32 routes is supported. • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 48 The IP address of the entry. The link (MAC) address for which a binding to the IP Link Address address given exists. • Select the Auto-refresh check box to refresh the page automatically. Automatic refresh occurs every three seconds. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 49 10 for a standard user account, and privilege level 5 for a guest account. Buttons: • Click Add New User to add a new user Add/edit user Add, edit, or delete a user in this page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 50 Delete User to delete the current user. This function is not available for new configurations (i.e., add new user). After a new user is added, the new user entry appears in the Users Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 51 Privilege levels This page provides an overview of the privilege levels. After setup is complete, click the Apply button and log in to the web interface with the new user name and password. The following appears: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 52 Configure NTP on this page. NTP is an acronym for Network Time Protocol, a network protocol for synchronizing the clocks of computer systems. NTP uses UDP (data grams) as a transport layer. You can specify NTP servers in this page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 53 Example: 'fe80::215:c5ff:fe03:4dc7'. The symbol '::' is a special syntax that can be used as a shorthand way of representing multiple 16-bit groups of contiguous zeros; but it can only appear once. It also uses an IPv4 address (for example, '::192.1.2.34'). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 54 It is convenient for areas in close commercial or other communication to maintain the same time, so time zones tend to follow the boundaries of countries and their subdivisions. Configure the time zone on the Time Zone Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 55 UPnP is an acronym for Universal Plug and Play. The goals of UPnP are to allow devices to connect seamlessly and to simplify the implementation of networks in home (data sharing, communications, and entertainment) and corporate environments for easy installation of computer components. Configure UPnP on the UPnP Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 56 The DHCP option 82 enables a DHCP relay agent to insert specific information into a DHCP request packets when forwarding client DHCP packets to a DHCP server and NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 57 (option82) into a DHCP message when forwarding to DHCP server and removes it from a DHCP message when transferring to DHCP client. It only works when DHCP relay operation mode is enabled. Disabled: Disable DHCP relay information mode operation. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 58 The number of packets in which the Circuit ID option does not match with the known circuit ID. Receive Bad Remote ID The number of packets in which the Remote ID option does not match with the known Remote ID. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 59 To display the SVG graph, the browser must support the SVG format. Consult the SVG Wiki for more information on browser support as a plugin may be required. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 60 All: All levels. Time The time of the system log entry. Message The message of the system log entry. Buttons • Select the Auto-refresh check box to refresh the page automatically. Automatic refresh occurs every three seconds. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 61 ID. • Click I<< to update the system log entries, starting from the first available entry ID. • Click << to update the system log entries, ending at the last entry currently displayed. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 62 Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. SMTP configuration The SMTP Configuration page displays the managed switch SMTP configuration details. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 63 • Click Save to save changes. • Click Reset to undo any changes made locally and revert to previously saved values. Web firmware upgrade Update the managed switch firmware using the Firmware Upload page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 64 Otherwise, the system won’t apply the new firmware and the user has to repeat the firmware upgrade process. Save startup configuration This function ensures that the current active configuration can be used after the next reboot. After clicking Save Configuration, the following screen appears. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 65 The Download Configuration page permits the download of the running-config, startup- config, and default-config system files to the switch. Configuration upload The Upload Configuration page permits the upload of the running-config and startup- config to the switch. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 66 It is possible to activate any of the configuration files present on the switch, except for running-config which represents the currently active configuration. Select the file to activate and click Activate Configuration. This initiates the process of completely replacing the existing configuration with that of the selected file. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 67 2. The firmware version and date information may be empty for older firmware releases. This does not constitute an error. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 68: Dhcp Server

    The DHCP Server Excluded IP Configuration page offers permits exclusion of IP addresses for static IP address devices, such as servers or routesr. The DHCP server will not allocate these excluded IP addresses to the DHCP client. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 69 DHCP client. Adding a pool and giving it a name creates a new pool with a default configuration. If you want to configure all settings including type, IP subnet mask, and lease time, click the pool name to go into the configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 70 Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. Click a pool name to configure DHCP pool settings on the DHCP Pool Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 71 Chapter 4: Web configuration NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 72 DHCP option 51, 58 and 59. Specifies the lease time that allows the client to request a lease time for the IP address. If all are 0's, then it means the lease time is infinite. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 73 Specifies the identifier to be used by the DHCP client to optionally identify the vendor type and configuration of a DHCP client. The DHCP server delivers the corresponding option 43 specific information to the client that sends an option 60 vendor class identifier. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 74 Statistics The DHCP Server Statistics page displays the database counters and the number of DHCP messages sent and received by the DHCP server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 75 Number of bindings that the administrator assigns an IP address to a client (host pool type). Expired Binding Number of bindings in which the lease time expired or they are cleared from Automatic/Manual type bindings. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 76 Click Clear to clear DHCP message received and sent counters. Binding The DHCP Server Binding IP page displays bindings generated for DHCP clients. The page includes the following fields: Binding IP address Displays all bindings. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 77 The DHCP Server Declined IP page displays declined IP addresses. The page includes the following fields: Declined IP address Displays IP addresses declined by DHCP clients. Object Description Declined IP List of IP addresses declined. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 78 RX amd TX NAK The number of NAK (option 53 with value 6) packets received and transmitted. RX and TX Release The number of release (option 53 with value 7) packets received and transmitted. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 79: Udld

    • Click Clear to clear the counters for the selected port. UDLD The UDLD Port Configuration page permits the user to inspect and change the current Unidirectional Link Detection (UDLD) configurations. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 80 Chapter 4: Web configuration The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 81 Click Save to save changes. • Click Reset to undo any changes made locally and revert to previously saved values. UDLD status The Detailed UDLD Status/Neighbor Status page displays the UDLD status of the ports. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 82: Open Shortest Path First (Ospf)

    It uses a link state routing (LSR) algorithm and falls into the group of interior gateway protocols (IGPs) operating within a single autonomous system (AS). Global configuration Configure the OSPF common router parameters on this page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 83 'metricTypeSpecified'. The allowed range is 0 to 1677214. Buttons • Click Clear OSPF Process to reset the current OSPF process. • Click Save to save changes. • Click Reset to undo local changes and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 84 • Click Save to save changes. • Click Reset to undo local changes and revert to previously saved values. Passive interface The page includes the following fields: Object Description Interface Interface identification. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 85 • Click Reset to undo local changes and revert to previously saved values. Area authentication The OSPF area authentication configuration table is used to apply authentication to all interfaces that belong to the area NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 86 Routers (ABRs) and only router-LSAs(Type-1) and network-LSAs (Type-2) can be summarized. The AS-external-LSAs(Type-5) cannot be summarized because the scope is OSPF autonomous system (AS). The AS-external-LSAs(Type-7) cannot be summarized because the feature is not yet supported. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 87 Add New Entry to add a new entry. • Click Apply to apply changes. • Click Reset to undo local changes and revert to previously saved values. Interface configuration The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 88 • Click Reset to undo local changes and revert to previously saved values. Virtual link The virtual link is established between two ABRs to avoid having all the areas connected directly to the backbone area. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 89 • Click Apply to apply changes. • Click Reset to undo local changes and revert to previously saved values. Global status OSPF router status information is provided on the OSPF Global Status page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 90 Area status OSPF network area status information is provided on the OSPF Area Status page. The page includes the following fields: Object Description Area ID OSPF area ID. Backbone Indicates a backbone area. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 91 • Click Refresh to refresh the page immediately. Neighbor status OSPF neighbor status information is provided on the OSPF Neighbor Status page. The page includes the following fields: Object Description Neighbor ID The neighbor ID. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 92 The OSPF priority. It helps determine the DR and BDR on the network to which this interface is connected. Cost The cost of the interface. Hello Hello timer. A time interval that a router sends an OSPF hello packet. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 93 The illustration below describes an OSPF autonomous system consisting of three switches. OSPF configuration consists of a two-step process: 1. Select the Global mode in OSPF. 2. Configure the OSPF area for the interfaces. Configuration includes the following: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 94 1. Add ports 3 and 4 as hybrid ports with Allowed VLANs 1, 10, 20. 2. Set the Mode to Router under IP Configuration. 3. Add the VLAN interface for both ports (Address: 192.168.10.1/192.168.20.1, Mask Length: 24). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 95 4. Set the OSPF Router Mode to Enable. 5. Configure the Area ID as 0.0.0.0. Check the Switch A to C OSPF interfaces: 1. Switch A 2. Switch B 3. Switch C 4. Run a ping test from 192.168.10.60 to 192.168.20.60. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 96: Simple Network Management Protocol (Snmp)

    Collections of related managed objects are defined in specific MIB modules. • Network-management protocol: A management protocol is used to convey management information between agents and NMSs. SNMP is the Internet community's de facto standard management protocol. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 97 SNMPv3 Users Configure SNMPv3 users table on this page. SNMPv3 Groups Configure SNMPv3 groups table on this page. SNMPv3 Views Configure SNMPv3 views table on this page. SNMPv3 Access Configure SNMPv3 accesses table on this page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 98 'F's are not allowed. Change of the Engine ID will clear all original local users. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 99 Chapter 4: Web configuration SNMP trap configuration Configure the SNMP trap on the SNMP Trap Configuration page. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 100 Disabled: Disable SNMP trap authentication failure. Trap Inform Timeout Indicates the SNMP trap inform timeout. The allowed range is (seconds) 2147. Trap Inform Retry Times Indicates the SNMP trap inform retry times. The allowed range is 255. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 101 Click Reset to undo any changes made locally and revert to previously saved values. SNMP system information The switch system information is provided in the System Information Configuration page. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 102 If you want to apply link up or link down to one of ports, input the SNMP OID to the subset OID column. For example, if you want apply a link down trap to port1, input “10000001” in the linkDown entry. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 103 Configure SNMPv3 communities in the SNMPv3 Community Configuration page. The entry index key is Community. The page includes the following fields: Object Description Delete Select the check box to delete the entry. It will be deleted during the next save. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 104 The value can also take the value of the snmpEngineID of a remote SNMP engine with which this user can communicate. In other words, if user engine ID equal system engine ID then it is local user, otherwise it is a remote user. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 105 Click Reset to undo any changes made locally and revert to previously saved values. SNMPv3 groups Configure SNMPv3 groups on the SMNPv3 Group Configuration page. The entry index keys are Security Model and Security Name. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 106 Reset to undo any changes made locally and revert to previously saved values. SNMPv3 views Configure SNMPv3 views table in the SNMPv3 View Configuration page. The entry index keys are View Name and OID Subtree. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 107 Group Name A string identifies the group name that this entry should belong to. The allowed string length is 1 to 32, and the allowed content is the ASCII characters from 33 to 126. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 108: Port Management

    Sets the source and target ports for mirroring Port configuration Ports can be configured on the Port Configuration page. Note: Manually configure Port-25 to Port-28 as 1G FDX when using the 10G/1G combo ports with 1G SFP. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 109 Chapter 4: Web configuration The linked image cannot be displayed. The file may have been moved, renamed, or deleted. Verify that the link points to the correct file and location. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 110 • Click Refresh to refresh the page and undo all local changes. Port statistics overview The Port Statistics Overview page provides an overview of general traffic statistics for all switch ports. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 111 The displayed counters are the totals for receive and transmit, the size counters for receive and transmit, and the error counters for receive and transmit. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 112 The number of received and transmitted (good and bad) packets split into categories based on their respective frame sizes. Receive and transmit queue counters The number of received and transmitted packets per input and output queue. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 113 You can also use the port number hyperlinks to check the statistics on a specific interface. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 114 – SFP DDM Module Only Buttons • Select the SFP Monitor Event Alert check box. The switch will be in accordance with the Warning Temperature setting and allows users to record message out via SNMP Trap. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 115 The traffic to be copied to the mirror port is selected as follows: • All frames received on a given port (also known as ingress or source mirroring). • All frames transmitted on a given port (also known as egress or destination mirroring). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 116 Tx frames on the mirror port. Because of this, the mode for the selected mirror port is limited to Disabled only. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 117: Link Oam

    A count of the number of Variable Response OAMPDUs received and Response transmitted on this interface. Rx and Tx Org Specific A count of the number of Organization Specific OAMPDUs PDUs transmitted on this interface. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 118 Maximum PDU Size and the smaller of the two is used. Multiplexer State When in forwarding state, the Device is forwarding non-OAMPDUs to the lower sublayer. Incase of discarding, the device discards all the non-OAMPDUs. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 119 Automatic refresh occurs every 3 seconds. Event status This page permits the user to inspect and change the current Link OAM Link Event configurations. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 120 This eight-octet field indicates the sum of symbol errors since the OAM sublayer was reset. Total Symbol period error This four-octet field indicates the number of Errored Symbol Period events Event TLVs that have been generated since the OAM sublayer was reset. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 121 32-bit unsigned integer. Buttons • Click Refresh to refresh the page immediately. • Click Clear to clear the data. Port settings This page permits the user to inspect and change the current Link OAM port configurations. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 122 Click Save to save changes. • Click Reset to undo local changes and revert to previously saved values. Event settings This page permits the user to inspect and change the current Link OAM event configurations. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 123 '60'. Error Threshold must be between 0-65535 and its default value is '1'. Buttons • Click Save to save changes. • Click Reset to undo local changes and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 124 To configure link OAM: 1. Set the OAM Mode for the CE to Passive. 2. Set the OAM Mode for the PE to Active. 3. Check OAM status and statistics for the CE device. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 125: Link Aggregation

    Link Aggregation Control Protocol (LACP) LAGs – LACP LAGs negotiate aggregated port links with other LACP ports located on a different device. If the other device ports are also LACP ports, the devices establish a LAG between them. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 126 The ports at both ends of a connection must be configured as link aggregation ports. • None of the ports in a link aggregation can be configured as a mirror source port or a mirror target port. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 127 The Aggregation Mode Configuration page is used to configure the aggregation hash mode and the aggregation group. The aggregation hash mode settings are global, whereas the aggregation group relate to the current device, as reflected by the page header. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 128 The TCP/UDP port number can be used to calculate the destination port for the frame. Select the check box to enable the use of the TCP/UDP Port Number, or uncheck it to disable. By default, the TCP/UDP Port Number is enabled. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 129 Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. Static aggregation status The Aggregation Status page shows static aggregation status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 130 LAG. This page allows the user to inspect and change the current LACP port configurations. The LACP port settings relate to the current device, as reflected by the page header. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 131 LACP system status The LACP System Status page provides a status overview of all LACP instances. This page displays the current LACP aggregation groups and LACP port status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 132 LACP port status The LACP Status page provides a LACP status overview of all ports. This page displays the current LACP aggregation groups and LACP port status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 133 • Select the Auto-refresh check box to automatically refresh the page every three seconds. LACP port statistics The LACP Statistics page provides an overview of LACP statistics for all ports. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 134: Vlan

    VLANs. 2. The managed switch supports IEEE 802.1Q VLAN. The port untagging function can be used to remove the 802.1 tag from packet headers to maintain compatibility with devices that are tag-unaware. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 135 Up to 255 VLANs based on the IEEE 802.1Q standard. • Port overlapping, allowing a port to participate in multiple VLANs. • End stations can belong to multiple VLANs. • Passing traffic between VLAN-aware and VLAN-unaware devices. • Priority tagging NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 136 VID is 12 bits long, 4094 unique VLAN can be identified. The tag is inserted into the packet header making the entire packet longer by four octets. All of the information originally contained in the packet is retained. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 137 A switch port can have only one PVID, but can have as many VIDs as the switch has memory in its VLAN table to store them. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 138 VLANs configured on the switch. Packets are forwarded only between ports that are designated for the same VLAN. Untagged VLANs can be used to manually isolate user groups or subnets. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 139 Assigning a unique range of VLAN IDs to each customer would restrict customer configurations, require intensive processing of VLAN mapping tables, and could easily exceed the maximum VLAN limit of 4096. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 140 In cases where a given service VLAN only has two member ports on the switch, the learning can be disabled for the particular VLAN and can therefore rely on flooding as the forwarding mechanism between the two ports. This way, the MAC table requirements are reduced. Global VLAN configuration NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 141 Ethertype for Custom S- This field specifies the Ethertype/TPID (specified in hexadecimal) ports used for custom S-ports. The setting is in force for all ports whose Port Type is set to S-Custom-port. Port VLAN configuration NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 142 Chapter 4: Web configuration The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 143 On egress, frames classified to the Port VLAN do not get tagged if Egress Tagging configuration is set to untag Port VLAN. The Port VLAN is called an "Access VLAN" for ports in Access mode and Native VLAN for ports in Trunk or Hybrid mode. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 144 All: All frames, whether classified to the Port VLAN or not, are transmitted with a tag. Untag All: All frames, whether classified to the Port VLAN or not, are transmitted without a tag. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 145 VLAN port configuration such as PVID and UVID. Currently, we support following VLAN : Admin : This is referred to as static. : NAS provides port-based authentication, which involves communications between a Supplicant, Authenticator, and an Authentication Server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 146 VLAN ID). • Click >> to update the table, starting with the entry after the last entry currently displayed. VLAN port status The VLAN Port Status for Combined users page provides VLAN port status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 147 Conflicts due to hardware limitations. • Direct conflict between user modules. Buttons • Select VLAN Users from the Static drop-down list. • Select the Auto-refresh check box to refresh the page automatically. Automatic refresh occurs every three seconds. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 148 Cancel to return to the editing and make a correction. The private VLAN is enabled when you click Apply. Delete button can be used to undo the addition of new Private VLANs. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 149 For private VLANs to be applied, the switch must first be configured for standard VLAN operation. When this is in place, one or more of the configured VLANs can be configured as private VLANs. Ports in a private VLAN fall into one of these two groups: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 150 • Select the Auto-refresh check box to refresh the page automatically. Automatic refresh occurs every three seconds. • Click Refresh to refresh the page immediately. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 151 The scenario is described as follows: Untagged packet entering VLAN 2 1. While [PC-1], an untagged packet, enters Port-1, the managed switch will tag it with a VLAN Tag=2. [PC-2] and [PC-3] will receive the packet through Port-2 and Port-3. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 152 Type 1-3 in an Allowed Access VLANs column, the 1-3 includes VLAN1 and 2 and 2. Assign VLAN members and PVIDs to each port: VLAN 2 : Port-1,Port-2 and Port-3 VLAN 3 : Port-4, Port-5 and Port-6 VLAN 1 : All other ports – Port-7~Port-28 NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 153 VLAN trunking between two 802.1Q-aware switches In most cases, they are used for “Uplink” to other switches. VLANs are separated at different switches, but they need access to other switches within the same VLAN group. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 154 Type 1-3 in the allowed Access VLANs column; the 1-3 includes VLAN 1 and 2 and 2. Assign VLAN members and PVIDs to each port: VLAN 2: Port-1, Port-2 and Port-3 VLAN 3: Port-4, Port-5 and Port-6 VLAN 1: All other ports – Port-7~Port-48 NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 155 6. Repeat Steps 1 to 5 by setting up the VLAN trunk port at the partner switch and add more VLANs to join the VLAN trunk. Repeat Steps 1 to 3 to assign the trunk port to the VLANs. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 156 Set Port-5 and Port-6 as promiscuous. The Port Isolation Configuration page appears. 2. Assign VLAN Member: VLAN 1 : Port-5 and Port-6 VLAN 2 : Port-1, Port-2, Port-5 and Port-6 VLAN 3: Port-3~Port-6. The Private VLAN Membership Configuration page appears. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 157 The MAC-based VLAN entries can be configured on the MAC-based VLAN Membership Configuration page. This page allows for adding and deleting MAC-based VLAN entries and assigning the entries to different ports. This page shows only static entries. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 158 Click >> to update the table, starting with the entry after the last entry currently displayed. MAC-based VLAN status The MAC-based VLAN Membership Status page shows MAC-based VLAN entries configured by various MAC-based VLAN users NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 159 The IP subnet-based VLAN entries can be configured on the IP Subnet-based VLAN Membership Configuration page. This page allows for adding, updating, and deleting IP subnet-based VLAN entries and assigning the entries to different ports. This page shows only static entries. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 160 The Protocol to Group Mapping Table page permits the addition of new protocols to the Group Name (unique for each Group) mapping entries, and allows you to see and delete entries already mapped for the switch. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 161 An empty row to VLAN mapping is added to the table, and Frame Type, Value, and the Group Name can be entry configured as needed. Click the Delete button to undo the addition of a new entry. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 162 An empty row to VLAN mapping is added to the table, and Frame Type, Value, and the Group Name can be entry configured as needed. Click the Delete button to undo the addition of a new entry. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 163: Spanning Tree Protocol (Stp)

    Please read the following before making any changes from the default values. The switch STP performs the following functions: • Creates a single spanning tree from any combination of switching or bridging elements. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 164 When STP is enabled using the default parameters, the path between source and destination stations in a switched network might not be ideal. For example, connecting higher-speed links to a port that has a higher number than the current root port can cause a root-port change. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 165 From initialization (switch boot) to blocking. • From blocking to listening or to disabled. • From listening to learning or to disabled. • From learning to forwarding or to disabled. • From forwarding to disabled. • From disabled to blocking. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 166 On the switch level, STP calculates the bridge identifier for each switch and then sets the root bridge and the designated bridges. On the port level, STP sets the root port and the designated ports. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 167 The user changeable parameters in the switch are as follows: • Priority – A priority for the switch can be set from 0 to 65535. 0 is equal to the highest priority. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 168 Illustration of STP A simple illustration of three switches connected in a loop is depicted in the following diagram. In this example, you can anticipate some major network problems if the STP assistance is not applied. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 169 C is deliberately chosen as a 100 Mbps Fast Ethernet link (default port cost = 200,000). Gigabit ports could be used, but the port cost should be increased from the default to ensure that the link between switch B and switch C is the blocked link. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 170 STP/RSTP bridge. Forward Delay The delay used by STP bridges to transition root and designated ports to forwarding (used in STP compatible mode). Valid values are in the range of 4 to 30 seconds NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 171 Bridge status The STP Bridges page provides a status overview of all STP bridge instances. The table contains a row for each STP bridge instance, and the columns display the following information: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 172 Topology Change Last The time since the last topology change occurred. Buttons • Select the Auto-refresh check box to refresh the page automatically. Automatic refresh occurs every three seconds. • Click Refresh to refresh the page immediately. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 173 Chapter 4: Web configuration CIST port configuration This STP CIST Port Configuration page permits the user to inspect and change the current STP CIST port configurations. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 174 Transitions to the forwarding state is faster for point-to-point LANs than for shared media. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 175 Half Duplex 200,000 Full Duplex 100,000 Trunk 50,000 Gigabit Ethernet Full Duplex 10,000 Trunk 5,000 MSTI priorities The MSTI Configuration page permits the user to inspect and change the current STP MSTI bridge instance priority configurations. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 176 Click Reset to undo any changes made locally and revert to previously saved values. MSTI configuration The MSTI Configuration page permits the user to inspect and change the current STP MSTI bridge instance priority configurations. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 177 Chapter 4: Web configuration NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 178 CIST (physical) port for each MSTI instance configured and applicable for the port. The MSTI instance must be selected before displaying actual MSTI port configuration options. This page contains MSTI port settings for physical and aggregated ports. The aggregation settings are stack global. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 179 Controls the port priority. This can be used to control priority of ports having identical port cost. Buttons • Click to set MSTx configuration. • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 180 Automatic refresh occurs every three seconds. • Click Refresh to refresh the page immediately. Port statistics The STP Statistics page displays the STP port statistics counters for physical ports in the currently selected switch. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 181: Multicast

    IGMP messages and copies them to the CPU for feature processing. The overall purpose of IGMP snooping is to limit the forwarding of multicast frames to only ports that are a member of the multicast group. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 182 If there are no members on a sub network, packets will not be forwarded to that sub network. Multicast service NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 183 Chapter 4: Web configuration Multicast flooding IGMP snooping multicast stream control NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 184 LAN, an explicit leave message, and query messages that are specific to a given group. The states a computer will go through to join or to leave a multicast group are as follows: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 185 The IPMC Profile Configurations page provides IPMC Profile related configurations. The IPMC profile is used to deploy the access control on IP multicast streams. It is allowed to create at maximum 64 Profiles with a maximum of 128 corresponding rules for each. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 186 The IPMC Profile Address Configuration page provides address range settings used in the IPMC profile. The address entry is used to specify the address range associated with the IPMC profile. It can create a maximum of 128 address entries in the system. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 187 IPMC profile address configuration. • Click >> to update the table starting with the entry after the last entry currently displayed. IGMP snooping configuration The IGMP Snooping Configuration page provides IGMP snooping-related configuration information. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 188 Enable to limit the number of multicast groups to which a switch port can belong. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 189 20 entries from the beginning of the VLAN table. The first entry shown will be the one with the lowest VLAN ID found in the VLAN table. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 190 The allowed range is 31744 seconds, default unsolicited report interval is 1 second. Buttons • Click Refresh to refresh the table starting from the Start from VLAN entries per page input fields. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 191 “deny” or “replace.” If the action is set to deny, any new IGMP join reports will be dropped. If the action is set to replace, the switch randomly removes an existing group and replaces it with the new multicast group. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 192 Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. IGMP snooping status The IGMP Snooping Status page provides IGMP snooping status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 193 When initially accessing the page, it shows the first 20 entries from the beginning of the IGMP Group table. The Start from VLAN group Address fields permit the user to select the starting point in the IGMP group table. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 194 When initially accessing the page, it shows the first 20 entries from the beginning of the IGMP Group table. The Start from VLAN group Address fields permit the user to select the starting point in the IGMP information table. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 195 IGMP group table. • Click >> to update the table, starting with the entry after the last entry currently shown. MLD snooping configuration The MLD Snooping Configuration page provides MLD snooping-related configuration. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 196 When initially accessing the page, it shows the first 20 entries from the beginning of the VLAN table. The first entry shown will be the one with the lowest VLAN ID found in the VLAN table. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 197 VLAN table (i.e., the entry with the lowest VLAN ID). • Click >> to updates the table, starting with the entry after the last entry currently displayed. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 198 “deny” or “replace.” If the action is set to deny, any new MLD join reports will be dropped. If the action is set to replace, the switch randomly removes an existing group and replaces it with the new multicast group. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 199 Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. MLD snooping status The MLD Snooping Status page provides MLD snooping status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 200 When initially accessing the page, it shows the first 20 entries from the beginning of the MLD Group table. The Start from VLAN group Address fields permit the user to select the starting point in the MLD group table. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 201 When initially accessing the page, it shows the first 20 entries from the beginning of the IGMP Group table. The Start from VLAN Group fields permit the user to select the starting point in the MLD information table. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 202 Uplink ports that send and receive multicast data to and from the multicast VLAN are called MVR source ports. A maximum of eight MVR VLANs with corresponding channel settings can be created for each multicast VLAN. A maximum of 256 group addresses are available for channel settings. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 203 Chapter 4: Web configuration The MVR Configurations page provides MVR-related configuration information. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 204 Chapter 4: Web configuration The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 205 MVR VLAN. A summary of the Interface Channel Profiling (of the MVR VLAN) appears after clicking the View button. The profile selected for the designated interface channel cannot have an overlapped permit group address. Port The logical port for the settings. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 206 Save. • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. MVR status The MVR Statistics page provides MVR status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 207 When initially accessing the page, it shows the first 20 entries from the beginning of the MVR Group table. The Start from VLAN Group Address fields permit the user to select the starting point in the MVR group table. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 208 When initially accessing the page, it shows the first 20 entries from the beginning of the MVR SFM information table. The Start from VLAN Group Address fields permit the user to select the starting point in the MVR SFM information table. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 209: Quality Of Service (Qos)

    Use QoS on the system to control a wide variety of network traffic functions by: • Classifying traffic based on packet attributes. • Assigning priorities to traffic (for example, setting higher priorities for time-critical or business-critical applications). • Applying security policy through traffic filtering. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 210 3. Create a QoS profile that associates a service level and a classifier. 4. Apply a QoS profile to a port(s). Port policing The QoS Ingress Port Policers page permits configuration of the policer settings for all switch ports. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 211 Click Reset to undo any changes made locally and revert to previously saved values. Port classification The QoS Ingress Port Classification page permits configuration of the basic QoS ingress classification settings for all switch ports. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 212 Chapter 4: Web configuration The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 213 DPL. DSCP Based Select DSCP Based to enable DSCP-based QoS ingress port classification. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 214 Chapter 4: Web configuration Queue policing Configure the queue policer settings for all switch ports in the QoS Ingress Queue Policers page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 215 The logical port for the settings contained in the same row. Click on the port number to configure the schedulers. For more details, refer to “Understanding QoS” on page 205. Mode Shows the scheduling mode for this port. Q0 ~ Q7 Shows the weight for this queue and port. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 216 Shows "disabled" or actual port shaper rate (e.g., "800 Mbps"). QoS egress port schedule and shapers The port scheduler and shapers for a specific port are configured on the QoS Egress Port Schedule and Shapers page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 217 Unit is kbps, and it is restricted to 1- 13200 when the Unit is Mbps. Port Shaper Unit Controls the unit of measure for the port shaper rate as kbps or Mbps. The default value is kbps. Buttons NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 218 Mapped: Use mapped versions of QoS class and DP level. QoS egress port tag remarking The QoS Egress Port Tag Remarking page can also provide an overview of QoS egress port tag remarking for a specific port. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 219 Click Reset to undo any changes made locally and revert to previously saved values. Port DSCP The QoS Port DSCP Configuration page permits configuration of the basic QoS port DSCP settings for all switch ports. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 220 DSCP-based QoS The QoS DSCP-Based QoS Ingress Classification page permits configuration of the basic QoS DSCP-based QoS ingress classification settings for all switches. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 221 DSCP values are mapped to a specific QoS class and Drop Precedence Level. Frames with untrusted DSCP values are treated as a non-IP frame. QoS Class QoS Class values can be between 0-7. Drop Precedence Level (0-1) NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 222 There are two configuration parameters for DSCP Translation: Translate Classify Translate DSCP at the Ingress side can be translated to any of 0-63 DSCP values. Classify Click Classify to enable classification at the Ingress side. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 223 Select DSCP value (0-63) from DSCP menu to map DSCP to corresponding QoS Class and DPL value Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 224 IPv4: The QCE only matches IPV4 frames. IPv6: The QCE only matches IPV6 frames. Action Indicates the classification action taken on the ingress frame if the parameters configured match with the frame's content. Action fields include: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 225 : Moves the QCE down the list. : Deletes the QCE. : The lowest plus sign adds a new entry at the bottom of the list of QCL. QoS control entry configuration The QCE Configuration page appears as follows: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 226 Chapter 4: Web configuration The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 227 CS7, EF or AF11-AF43. Sport – Source TCP/UDP port:(0-65535) or Any, specific or port range applicable for IP protocol UDP/TCP. Dport – Destination TCP/UDP port:(0-65535) or Any, specific or port range applicable for IP protocol UDP/TCP. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 228 Ethernet: Only Ethernet frames (with Ether Type 0x600-0xFFFF) are allowed. LLC: Only (LLC) frames are allowed. SNAP: Only (SNAP) frames are allowed. IPv4: The QCE will match only IPV4 frames. IPv6: The QCE will match only IPV6 frames. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 229 These only affect flooded frames (i.e., frames with a (VLAN ID, DMAC) pair not present on the MAC Address table). The configuration indicates the permitted packet rate for unicast, multicast, or broadcast traffic across the switch. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 230 Configuration page. RED cannot be applied to queue 6 and 7. Through different RED configurations for the queues (QoS classes), it is possible to obtain Weighted Random Early Detection (WRED) operation between queues. The settings are global for all ports in the switch. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 231 The drop probability for frames marked with Drop Precedence Level n increases linearly from zero (at Min. Threshold average queue filling level) to Max. DP n (at 100% average queue filling level). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 232 The Voice VLAN Configuration page contains the Voice VLAN feature. This enables voice traffic forwarding on the Voice VLAN, permitting the switch to classify and schedule network traffic. We recommended that there be two VLANs on a port – one for voice and one for data. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 233 Indicates the Voice VLAN port mode. Selections include: Disabled: Disjoin from Voice VLAN. Auto: Enable auto detect mode. It detects if there is a VoIP phone attached to the specific port and configures the Voice VLAN members automatically. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 234 IEEE. It must be six characters long and the input format is "xx-xx- xx" (x is a hexadecimal digit). Description The description of the OUI address. Normally, it describes the vendor telephony device it belongs to. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 235: Access Control Lists (Acl)

    ACE that is defined. A conflict occurs if a specific ACE is not applied to the hardware due to hardware limitations. The maximum number of ACEs is 512 on each switch. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 236 Indicates the hardware status of the specific ACE. The specific ACE is not applied to the hardware due to hardware limitations. Buttons • Select the Auto-refresh check box to refresh the page automatically. Automatic refresh occurs every three seconds. • Click Refresh to refresh the page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 237 The counter indicates the number of times the ACE was hit by a frame. Modification Buttons Modify each ACE (Access Control Entry) in the table using the following buttons: : Inserts a new ACE before the current row. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 238 A frame that hits this ACE matches the configuration that is defined here. The page includes the following fields: Object Description Ingress Port Select the ingress port for which this ACE applies. Any: The ACE applies to any port. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 239 The permitted range is to 255. Policy Bitmask When Specific is selected for the policy filter, you can enter a specific policy bitmask. The permitted range is to 0xff. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 240 Disabled: Port shut down is disabled for the ACE. Note: The shutdown feature only works when the packet length is less than 1518 (without VLAN tags). Counter The counter indicates the number of times the ACE was hit by a frame. MAC parameters NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 241 Specify the tag priority for this ACE. A frame that hits this ACE matches this tag priority. The allowed number range is 0 to 7. The value means that no tag priority is specified (tag priority is "don't-care”). ARP parameters NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 242 Specify whether frames can hit the action according to their target hardware Match address field (THA) settings. 0: RARP frames where THA is not equal to the SMAC address. 1: RARP frames where THA is equal to the SMAC address. Any: Any value is allowed ("don't-care”). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 243 0: ARP/RARP frames where the PRO is equal to IP (0x800). 1: ARP/RARP frames where the PRO is equal to IP (0x800). Any: Any value is allowed ("don't-care”). IP parameters The IP parameters can be configured when IPv4 is selected as the Frame Type. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 244 IP filter, you can enter a specific SIP address in dotted decimal notation. SIP Mask When Network is selected for the source IP filter, you can enter a specific SIP mask in dotted decimal notation. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 245 IPv6 frames with a hop limit field greater than zero must not be able to match this entry. non-zero: IPv6 frames with a hop limit field greater than zero must be able to match this entry. Any: Any value is allowed ("don't-care”). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 246 Specific is selected for the ICMP code filter, you can enter a specific ICMP code value. The allowed range is to 255. A frame that hits this ACE matches this ICMP code value. TCP/UDP parameters NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 247 0: TCP frames where the RST field is set must not be able to match this entry. 1: TCP frames where the RST field is set must be able to match this entry. Any: Any value is allowed ("don't-care”). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 248 ACL ports configuration Configure the ACL parameters (ACE) of each switch port on the ACL Ports Configuration page. These parameters will affect frames received on a port unless the frame matches a specific ACE. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 249 Disabled: To close ports by changing the volatile port configuration of the ACL user module. The default value is Enabled. Counter Counts the number of frames that match this ACE. Buttons • Click Apply to apply changes. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 250 The rate limiter ID for the settings contained in the same row. Rate (pps) The allowed values are: 0-3276700 in pps or 0, 100, 200, 300, ..., 1000000 in kbps. Buttons • Click Apply to apply changes. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 251: Authentication

    When authentication is complete, the RADIUS server sends a success or failure indication, which in turn causes the switch to open up or block traffic for that particular client using static entries into the MAC table. Only then will frames from the client be NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 252 Authentication Protocol over LAN (EAPOL) traffic through the port to which the client is connected. After authentication is successful, normal traffic can pass through the port. Device roles With 802.1X port-based authentication, the devices in the network have specific roles as shown below. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 253 EAP within the native frame format. When the switch receives frames from the authentication server, the server's frame header is removed, leaving the EAP frame which is then encapsulated for Ethernet and sent to the client. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 254 Ports in authorized and unauthorized states The switch port state determines if the client is granted access to the network. The port starts in the unauthorized state. While in this state, the port disallows all ingress and NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 255 Authentication configuration The Authentication Method Configuration page allows you to configure how a user is authenticated when logging into the switch via one of the management client interfaces. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 256 The switch uses the MAC address to authenticate against the back end server. Intruders can create counterfeit MAC addresses, which makes MAC-based authentication less secure than 802.1X authentication. The NAS configuration consists of two sections, a system- and a port-wide. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 257 Chapter 4: Web configuration NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 258 Chapter 4: Web configuration The page includes the following fields: System configuration NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 259 In MAC-based Auth. mode, the The switch will ignore new frames coming from the client during the hold time. The Hold Time can be set to a number between 10 and 1000000 seconds. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 260 (selected), the switch considers entering the Guest VLAN even if an EAPOL frame has been received on the port for the life-time of the port. The value can only be changed if the Guest VLAN option is globally enabled. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 261 Chapter 4: Web configuration Port configuration The table has one row for each port on the selected switch and a number of columns, which are: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 262 Chapter 4: Web configuration Object Description Port The port number for which the configuration below applies. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 263 If more than one supplicant is connected to a port, the one that comes first when the port's link comes up will be the first one considered. If that supplicant doesn't provide valid credentials within a certain amount of NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 264 MAC address is a valid RADIUS user can be used by anyone. Also, only the MD5-Challenge method is supported. The maximum number of clients that can be attached to a port can be limited using the port security limit control functionality. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 265 Value of Tunnel-Private-Group-ID must be a string of ASCII chars in the range '0' - '9', which is interpreted as a decimal string representing the VLAN ID. Leading '0's are discarded. The final value must be in the range [1; 4095]. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 266 Reinitialize: Forces a reinitialization of the clients on the port and thereby a reauthentication immediately. The clients transfer to the unauthorized state while the reauthentication is in progress. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 267 VLAN ID. Read more about RADIUS-assigned VLANs here. If the port is moved to the Guest VLAN, "(Guest)" is appended to the VLAN ID. Read more about Guest VLANs here. Buttons • Click Refresh to refresh the page immediately. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 268 ID is not overridden by NAS. If the VLAN ID is assigned by the RADIUS server, "(RADIUS-assigned)" is appended to the VLAN ID. If the port is moved to the Guest VLAN, "(Guest)" is appended to the VLAN NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 269 Chapter 4: Web configuration Port counters NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 270 Total dot1xAuthEapolFrame The number of EAPOL frames of any type that have been transmitted by the switch. Request ID dot1xAuthEapolReqId The number of EAPOL FramesTx Request Identity frames that have been transmitted by the switch. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 271 Chapter 4: Web configuration Requests dot1xAuthEapolReqFr The number of valid amesTx EAPOL Request frames (other than Request Identity frames) that have been transmitted by the switch. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 272 Auth. dot1xAuthBack 802.1X- and MAC-based: endAuthFails Failures Counts the number of times that the switch receives a failure message. This indicates that the supplicant/client has not authenticated to the back end server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 273 The protocol version number carried in the most recently received EAPOL frame. MAC-based: Not applicable. Identity 802.1X-based: The user name (supplicant identity) carried in the most recently received Response Identity EAPOL frame. MAC-based: Not applicable. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 274 Click Refresh to refresh the page immediately. • Click Clear to clear the counters for the selected port. This button is available in the following modes: • Force Authorized • Force Unauthorized • Port-based 802.1X NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 275 Clear This to clear only the currently selected client's counter. This button is available in the following modes: • Multi 802.1X • MAC-based Auth.X RADIUS Configure the RADIUS servers on the RADIUS Server Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 276 Retransmit This optional setting overrides the global retransmit value. Leaving it blank will use the global retransmit value. This optional setting overrides the global key. Leaving it blank will use the global key. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 277 • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. TACACS+ The TACACS+ Server Configuration page permits configuration of the TACACS+ Servers. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 278 RADIUS overview The RADIUS Authentication/Accounting Server Overview page provides an overview of the status of the RADIUS servers configurable on the authentication configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 279 This state is only reachable when more than one server is enabled. Buttons • Click Refresh to refresh the page immediately. • Click Auto-refresh to refresh the page automatically. Automatic refresh occurs every three seconds. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 280 The page includes the following fields: RADIUS authentication statistics The statistics map closely to those specified in RFC4668 - RADIUS Authentication Client MIB. Use the server select box to switch between the back end servers to show details for each. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 281 Access radiusAuthClientEx The number of RADIUS Requests tAccessRequests Access-Request packets sent to the server. This does not include retransmissions. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 282 Chapter 4: Web configuration Access radiusAuthClientEx The number of RADIUS Retransmissi tAccessRetransmis Access-Request packets sions retransmitted to the RADIUS authentication server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 283 This variable is incremented when an Access-Request is sent and decremented due to receipt of an Access-Accept, Access- Reject, Access-Challenge, timeout, or retransmission. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 284 A retry to the same server is counted as a retransmit as well as a timeout. A send to a different server is counted as a Request as well as a timeout. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 285 RADIUS accounting statistics The statistics map closely to those specified in RFC4670 - RADIUS Accounting Client MIB. Use the server check box to switch between the back end servers to show details for each. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 286 This variable is incremented when a Request is sent and decremented due to receipt of a response, timeout, or retransmission. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 287 Buttons • Select the Auto-refresh check box to refresh the page automatically. Automatic refresh occurs every three seconds. • Click Refresh to refresh the page immediately. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 288 Ensure that the shared secret key is as same as the one you had set at the managed switch’s 802.1x system configuration (12345678 in this case). 1. Configure the IP Address of remote RADIUS server and secret key. 2. Click New RADIUS Client on the Windows 2003 server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 289 6. Create user data. The establishment of the user data needs to be created on the Radius Server PC. For example, select Active Directory Users and Computers and create legal user data (Windows Server 2003). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 290 Chapter 4: Web configuration 7. Right-click a user that you created and then type in properties and configure settings. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 291 Configuration sample: EAP-MD5 authentication 1. Go to Start > Control Panel, and then double-click on Network Connections. 2. Right-click on the Local Network Connection. 3. Click Properties to open up the Properties setting window. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 292 EAP type. 7. Click OK. 8. When the client has associated with the managed switch, a user authentication notice appears in the system tray. Click on the notice to continue. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 293: Security

    This section describes how to control access to the managed switch, including user access and management control. The Security page contains links to the following main topics: • Port Limit Control • Access Management • HTTPs / SSH • DHCP Snooping NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 294 The limit control module utilizes a lower-layer port security module that manages MAC addresses learned on the port. The limit control configuration consists of two sections, a system- and a port-wide. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 295 NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 296 Action is set to None or Trap. Shutdown: Indicates that the port is shut down by the Limit Control module. This state can only be shown if Action is set to Shutdown Trap & Shutdown. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 297 Configure the access management table on the Access Management Configuration page. The maximum entry number is 16. If the application's type match any one of the access management entries, it will allow access to the switch. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 298 • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. Access management statistics The Access Management Statistics page provides statistics for access management. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 299 • Click Auto-refresh to to refresh the page automatically. Automatic refresh occurs every three seconds. • Click Clear to clear all statistics. HTTPs Configure HTTPS on the HTTPS Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 300 MAC address to forward. If only one chooses to block it, it will be blocked until that user module decides otherwise. The status page is divided into two sections – one with a legend of user modules and one with the actual port status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 301 If only one chooses to block it, it will be blocked until that user module decides otherwise. The status page is divided into two sections – one with a legend of user modules and one with the actual port status. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 302 A one-letter abbreviation of the user module. This is used in the Users column in the port status table. Port status The table has one row for each port on the selected switch in the switch and a number of columns, which are: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 303 MAC address to be set in the forwarding state, all enabled user modules must unanimously agree on allowing the MAC address to forward. If only one chooses to block it, it will be blocked until that user module decides otherwise. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 304 DHCP snooping is used to block intruders on the untrusted ports of DUT when it tries to intervene by injecting a bogus DHCP reply packet to a legitimate conversation between the DHCP client and server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 305 Chapter 4: Web configuration Configure DHCP Snooping on the DHCP Snooping Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 306 IP Source Guard is a secure feature used to restrict IP traffic on DHCP snooping untrusted ports by filtering traffic based on the DHCP Snooping Table or manually configured IP Source Bindings. It helps prevent IP spoofing attacks when a host tries to NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 307 Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. IP source guard static table The Static IP Source Guard Table page appears as below: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 308 Each page shows up to 99 entries from the Dynamic IP source guard table, selected through the "entries per page" input field (default is 20). When first visited, the web page will show the first 20 entries from the beginning of the table. The first entry NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 309 Layer 2 networks by "poisoning" the ARP caches. This feature is used to block such attacks. Only valid ARP requests and responses can go through DUT. The ARP Inspection Configuration page provides ARP Inspection related configuration. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 310 None: Log nothing. Deny: Log denied entries. Permit: Log permitted entries. ALL: Log all entries. Buttons • Click Translate Dynamic to Static to translate all dynamic entries to static entries. • Click Apply to apply changes. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 311 Entries in the Dynamic ARP Inspection Table are shown on this page. The Dynamic ARP Inspection Table contains up to 1024 entries, and is sorted first by port, then by VLAN ID, then by MAC address, and then by IP address. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 312: Mac Address Table

    MAC addresses to switch ports for knowing which ports the frames should go to (based upon the DMAC address in the frame). This table contains both static and dynamic entries. The static entries are NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 313 Aging Time The time after which a learned entry is discarded. By default, dynamic entries are removed from the MAC after 300 seconds. This removal is also called aging. (Range: 10-10000000 seconds; Default: 300 seconds) NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 314 MAC address table status Dynamic MAC table Entries in the MAC table are shown on this page. The MAC table contains up to 8192 entries and is sorted first by VLAN ID, then by MAC address. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 315 Automatic refresh occurs every three seconds. • Click Refresh to refresh the displayed table starting from the MAC address VLAN input fields. • Click Clear to flush all dynamic entries. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 316: Lldp

    SNMP applications to simplify troubleshooting, enhance network management, and maintain an accurate network topology. LLDP configuration The LLDP Configuration page allows the user to inspect and configure the current LLDP port settings. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 317 LLDP information. Disabled The switch will not send out LLDP information, and will drop LLDP information received from neighbors. Enabled The switch will send out LLDP information, and will analyze LLDP information received from neighbors. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 318 LLDP information transmitted. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. LLDP-MED configuration The LLDP-MED Configuration page permits configuration of the LLDP-MED. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 319 The recommended value is four times, given that four LLDP frames with a one second interval will be transmitted when an LLDP frame with new information is received. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 320 IETF Geopriv Civic Address based Location Configuration Information (Civic Address LCI). Object Description Country code The two-letter ISO 3166 country code in capital ASCII letters - Example: DK, DE or US. State National subdivisions (state, canton, region, province, prefecture). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 321 Improper network policy configurations are a very significant issue in VoIP environments that frequently result in voice quality degradation or loss of service. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 322 Voice application policy. Guest Voice – Support a separate 'limited feature–set' voice service for guest users and visitors with their own IP Telephony handsets and other similar appliances supporting interactive voice services. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 323 The number of policies supported is 32 Port policies configuration Every port may advertise a unique set of network policies or different attributes for the same network policies based on the authenticated user identity or port configuration. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 324 MED neighbors. The table contains a row for each port on which an LLDP neighbor is detected. The columns hold the following information: The page includes the following fields: Fast start repeat count Object Description Port The port on which the LLDP frame was received. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 325 IP Phones, PC- based softphones, or other communication appliances that directly support the end user. Discovery services defined in this class include provision of location identifier NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 326 VLAN. Can be Tagged or Untagged. Untagged: The device is using an untagged frame format and as such does not include a tag header as defined by IEEE 802.1Q-2003. Tagged: The device is using the IEEE 802.1Q tagged frame format. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 327 Chassis ID The identification of the neighbor's LLDP frames. Port ID The identification of the neighbor port. Port Description The port description advertised by the neighbor unit. System Name The name advertised by the neighbor unit. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 328 Two types of counters are shown. Global counters are counters that refer to the switch, while local counters refers to counters for the currently selected switch. The page includes the following fields: Global counters NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 329 Automatic refresh occurs every three seconds. • Click Refresh to refresh the page immediately. • Click Clear to clear the local counters. All counters (including global counters) are cleared upon reboot. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 330: Network Diagnostics

    After clicking Start, five ICMP packets are transmitted, and the sequence number and roundtrip time are displayed upon reception of a reply. The page refreshes automatically until responses to all packets are received, or until a timeout occurs. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 331 After clicking Start, five ICMPv6 packets are transmitted, and the sequence number and roundtrip time are displayed upon reception of a reply. The page refreshes automatically until responses to all packets are received, or until a timeout occurs. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 332 The page refreshes automatically until responses to all packets are received, or until a timeout occurs. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 333 10 or 100 Mbps management port causes the switch to stop responding until VeriPHY is complete. The ports belong to the current unit, as reflected by the page header. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 334: Loop Protection

    This section describes the enable loop protection function that provides loop protection to prevent broadcast loops in the managed switch. Loop protection configuration The Loop Protection Configuration page allows the user to inspect and change the current loop protection configurations. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 335 Configures the action performed when a loop is detected on a port. Selections include Shutdown Port, Shutdown Port and Log Only. Tx Mode Controls if the port is actively generating loop protection PDUs or if it is just passively looking for looped PDU's. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 336: Rmon

    The MID of RMON consists of 10 groups. The switch supports the most frequently used groups: • Statistics: Maintain basic usage and error statistics for each subnet monitored by the agent. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 337 InUnknownProtos: The number of inbound packets that were discarded because of an unknown or unsupported protocol. OutOctets: The number of octets transmitted out of the interface, including framing characters. OutUcastPkts: The number of unicast packets that requested to transmit. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 338 When initially accessing the page, it shows the first 20 entries from the beginning of the Alarm table. The first entry shown will be the one with the lowest ID found in the Alarm table. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 339 >> to update the table starting with the entry after the last entry currently displayed. RMON event configuration Configure the RMON Event table on the RMON Event Configuration page. The entry index key is ID. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 340 When initially accessing the page, it shows the first 20 entries from the beginning of the Event table. The first entry shown will be the one with the lowest ID found in the Event table NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 341 • Click >> to update the table starting with the entry after the last entry currently displayed. RMON history configuration Configure RMON History on the RMON History Configuration page. The entry index key is ID. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 342 The value of sysUpTime at the start of the interval over which this sample was measured. Drop The total number of events in which packets were dropped by the probe due to lack of resources. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 343 >> to update the table starting with the entry after the last entry currently displayed. RMON statistics configuration Configure the RMON Statistics table on the RMON Statistics Configuration page. The entry index key is ID. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 344 The total number of octets of data (including those in bad packets) received on the network. Pkts The total number of packets (including bad packets, broadcast packets, and multicast packets) received. Broadcast The total number of good packets received that were directed to the broadcast address. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 345: Ring

    ERPS provides a faster redundant recovery than Spanning Tree topology. The action is similar to STP or RSTP, but the algorithms between them are not the same. In the ring topology, every switch should be enabled with the ring function and two ports should be NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 346 When the failure of a network connection occurs, the nodes block the failed link and report the signal failure message. The RPL owner switch will automatically unblock the PRL to recover from the failure. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 347 The ID of the MEP. Click on the ID of an MEP to enter the configuration page. Domain Port: This is an MEP in the Port Domain. 'Flow Instance' is a Port. Esp: Future use Evc: This is an MEP in the EVC Domain. 'Flow Instance' is an EVC. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 348 Save to save changes. • Click Reset to undo any changes made locally and revert to previously saved values. Detailed MEP configuration This page allows the user to inspect and configure the current MEP instance. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 349 Fault cause indicating that the server layer is indicating Signal Fail. aBLK The consequent action of blocking service frames in this flow is active. aTSF The consequent action of indicating Trail Signal Fail protection is active. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 350 Object Description Enable Automatic Protection Switching protocol information transportation based on transmitting/receiving R-APS/L-APS PDU can be enabled/disabled. APS must be enabled to support ERPS/ELPS implementing APS. This is only valid with one peer MEP configured. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 351 "Port 1" is configured as "0" for the interconnected sub-ring. "0" in this field indicates that no "Port 1" is associated with this instance Port 0 SF MEP The Port 0 Signal Fail reporting MEP. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 352 Click Reset to undo any changes made locally and revert to previously saved values. ERPS configuration This page allows the user to inspect and configure the current ERPS instance. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 353 Permits selection of the east port or west port as the RPL block. Clear If the owner has to be changed, then the Clear check box allows clearing the RPL owner for that ERPS ring. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 354 • Click Save to save changes. • Click Reset to undo any changes made locally and revert to previously saved values. Ring wizard Configure ERPS using a wizard on the Ring Wizard page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 355 The switch where you are requesting ERPS. Port Configures the port number for the MEP. VLAN Set the ERPS VLAN. Buttons • Click Next to configure ERPS. • Click to save changes. • Click Save Topology to show the ring topology. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 356 2. On switch 1, 2, and 3, disable STP to avoid a conflict with ERPS. Setup steps Set ERPS configuration on switch 1 1. Connect a PC directly to switch 1. Do not connect to port 1 or 2. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 357 1. Connect a PC directly to switch 3. Do not connect to port 1 or 2. 2. Log in to switch 3 and select Ring > Ring Wizard. 3. Set “All Switch Number” = 3 and “Number ID” = 3. Click Next to set the ERPS configuration for switch 3. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 358: Power Over Ethernet (Poe)

    Museums, airports, hotels, campuses, factories, warehouses, etc. can install APs in any location. 6~12 Watts IP Surveillance Enterprises, museums, campuses, hospitals, banks, etc. can install IP cameras regardless of installation location without the 10~12 Watts need to install AC sockets. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 359 In this mode, each port automatically determines how much power to reserve according to the class the connected PD belongs to, and reserves the power accordingly. Four different port classes exist: 4, 7, 15.4, and 30.8 W. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 360 In this mode, the PoE power ports are managed and determined by LLDP Media protocol. PoE configuration Inspect and configure the current PoE configuration settings on the Power over Ethernet Configuration page. The page includes the following fields: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 361 The PD is classified based on power. The classification of the PD is the maximum power that the PD draws across all input voltages and operational modes. A PD will return to Class 0 to 4 in accordance with the maximum power draw as specified below: NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 362 Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. Port configuration Inspect and configure the current PoE port settings on the PoE Ethernet Configuration page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 363 In 802.3af mode, the system is going to reserve 15.4W maximum for the PD that supports Class 3 level. In IEEE 802.3at mode, the system is going to reserve 30.8W for the PD that supports Class 4 level. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 364 PD’s power consumption is lower than the power limit value. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 365 Chapter 4: Web configuration PoE status Inspect the total power consumption, total power reserved, and current status for all PoE ports on the PoE Status page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 366 PoE network including VoIP and Wireless LAN. Under the trend of energy saving worldwide and contributing to worldwide environmental protection, the managed switch can effectively control power supply in addition to its capability to NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 367 The managed switch allows each of the connected PoE IP cameras to reboot at a specific time each week, thus reducing the chance of IP camera crashes resulting from buffer overflow. Define the PoE schedule and schedule power recycling on the PoE Schedule page. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 368 Note that if you want the PoE schedule and PoE reboot schedule to work at the same time, use this function and do not use the Reboot Only function. This function permits the administrator to reboot the PoE device at the indicated time as required. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 369 The managed switch can be configured to monitor a connected PD’s status in real-time via ping action. After the PD stops working and does not respond, the managed switch restarts PoE port power so that the PD is once again recognized and working. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 370 Interval Time (10~300s) Set the length of time a ping request should be issued to the PD. Interval time range is from 10 to 300 seconds. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 371 If you cannot determine the precise booting time, we suggest set it to a longer time. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 372: Port Identification

    Chapter 4: Web configuration Port identification Configure each port response time for TruVision Navigator in the port identification Configuration page. LCD management The LCD Management page provides options for managing the LCD control panel. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 373 LCD panel, the user must input this password so that the configuration will be saved and executed. Buttons • Click Apply to apply changes. • Click Reset to undo any changes made locally and revert to previously saved values. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 374: Switch Operation

    Store-and-forward Store-and-Forward is a packet-forwarding technique. A Store-and-Forward switch stores the incoming frame in an internal buffer and completes error checking before NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 375: Auto-Negotiation

    (usually at Power On or Reset). This is done by detecting the modes and speeds of both devices that are connected. Both the 10BASE-T and 100BASE-TX devices can connect with the port in either half- or full-duplex mode. 1000BASE-T can be only connected in full-duplex mode. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 376: Poe Overview

    CAT-5 cabling. Powered Source Equipment (PSE) A PSE is a device such as a switch that provides (sources) power on the Ethernet cable. The maximum allowed continuous output power per cable in IEEE 802.3af is NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 377 1 and 2 can be of either polarity. The linked image cannot be displayed. The file may have been moved, renamed, or deleted. Verify that the link points to the correct file and location. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 378: Troubleshooting

    2. If the cord is inserted correctly, replace the power cord. 3. Check that the AC power source is working by connecting a different device in place of the switch. If that device does not work, check the AC power NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 379: Appendix A Networking Connection

    Cross) detection. This makes it possible to directly connect the managed switch to any Ethernet device without making a crossover cable. The following table and diagram show the standard RJ45 receptacle/ connector and their pin assignments. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 380 7 = White / Brown SIDE 2 8 = Brown 8 = Brown Ensure that connected cables are with the same pin assignment and color as the above diagram before deploying the cables into the network. NS4702-24P-4X-V2 Managed Switch User Manual...

  • Page 381: Glossary

    ACL can generally be configured to control inbound traffic, and in this context, they are similar to firewalls. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 382 ARP allows a host to communicate with other hosts when only the Internet address of its neighbors is known. Before using IP, the host sends a broadcast ARP request containing the Internet address of the desired destination system. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 383 IP addresses rather than requiring an administrator to manage the task. This means that a new computer can be added to a network without the hassle of manually assigning it a unique IP address. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 384 DSCP Differentiated Services Code Point. It is a field in the header of IP packets for packet classification purposes. Energy Efficient Ethernet as defined in IEEE 802.3az. Ethernet Protection Switching as defined in ITU/T G.8031. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 385 Transmission Control Protocol (TCP) connection to a particular port on a remote host (port 80 by default). An HTTP server listening on that port waits for the client to send a request message. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 386 To remove your messages from the server, use the mail client to generate local folders, copy messages to the local hard drive, and then delete and expunge the messages from the server. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 387 (TIA-1057). LOC is an acronym for Loss Of Connectivity and is detected by a MEP and indicates lost connectivity in the network. Can be used as a switch criteria by EPS. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 388 NAS, and the NAS connects to another resource asking whether the client's supplied credentials are valid. Based on the answer, the NAS then allows or disallows access to the protected resource. An example of a NAS implementation is IEEE 802.1X. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 389 Powered Device. In a PoE> system the power is delivered from a PSE ( power sourcing equipment ) to a remote device. The remote device is called a PD. Physical Interface Transceiver. It is the device that implements the Ethernet physical layer (IEEE-802.3). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 390 There are six QCE frame types: Ethernet Type, VLAN, UDP/TCP Port, DSCP, TOS, and Tag Priority. Frames can be classified by one of four different QoS classes: "Low", "Normal," "Medium," and "High" for individual application. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 391 STP: the Rapid Spanning Tree Protocol, which provides for faster spanning tree convergence after a topology change. Standard IEEE 802.1D-2004 now incorporates RSTP and obsoletes STP, while at the same time being backwards- compatible with STP. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 392 SPROUT also calculates parameters for setting up each switch to perform the shortest path forwarding within the stack. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 393 IP manages and for reassembling the packets back into the complete message at the other end. Common network applications that use TCP include the World Wide Web (WWW), email, and File Transfer Protocol (FTP). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 394 Common network applications that use UDP include the Domain Name System (DNS), streaming media applications such as IPTV, Voice over IP (VoIP), and Trivial File Transfer Protocol (TFTP). NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 395 (Wikipedia). Wi-Fi Wireless Fidelity. It is meant to be used generically when referring of any type of 802.11 network, whether 802.11b, 802.11a, dual-band, etc. The term is promulgated by the Wi-Fi Alliance. NS4702-24P-4X-V2 Managed Switch User Manual...
  • Page 396 Wait To Restore. This is the time a fail on a resource has to be 'not active' before restoration back to this (previously failing) resource. NS4702-24P-4X-V2 Managed Switch User Manual...

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