TP-Link TL-SG2424P User Manual
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TP-Link TL-SG2424P User Manual

24-port gigabit smart poe switch with 4 combo sfp slots
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See also: Reference Manual , Configuration Manual
TL-SG2424P
24-Port Gigabit Smart PoE Switch with
4 Combo SFP Slots
REV1.0.0
1910010774

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Summary of Contents for TP-Link TL-SG2424P

  • Page 1 TL-SG2424P 24-Port Gigabit Smart PoE Switch with 4 Combo SFP Slots REV1.0.0 1910010774...

  • Page 2: Fcc Statement

    Specifications are subject to change without notice. is a registered trademark of TP-LINK TECHNOLOGIES CO., LTD. Other brands and product names are trademarks or registered trademarks of their respective holders. No part of the specifications may be reproduced in any form or by any means or used to make any derivative such as translation, transformation, or adaptation without permission from TP-LINK TECHNOLOGIES CO., LTD.

  • Page 3: Safety Information

    Safety Information  When product has power button, the power button is one of the way to shut off the product; When there is no power button, the only way to completely shut off power is to disconnect the product or the power adapter from the power source. Don’t disassemble the product, or make repairs yourself.

  • Page 4: Table Of Contents

    CONTENTS Package Contents ..........................1 Chapter 1 About this Guide......................2 Intended Readers ......................2 Conventions........................2 Overview of This Guide ....................2 Chapter 2 Introduction ........................5 Overview of the Switch ....................5 Main Features.......................5 Appearance Description ....................6 2.3.1 Front Panel ......................6 2.3.2 Rear Panel ......................7 Chapter 3 Login to the Switch.......................8 Login..........................8 Configuration ........................8...
  • Page 5 5.1.1 Port Config .......................29 5.1.2 Port Mirror ......................30 5.1.3 Port Security ....................32 5.1.4 Port Isolation ....................34 5.1.5 Loopback Detection ..................35 LAG ..........................36 5.2.1 LAG Table ......................37 5.2.2 Static LAG ......................38 5.2.3 LACP Config ....................39 Traffic Monitor ......................41 5.3.1 Traffic Summary....................41 5.3.2 Traffic Statistics ....................42 MAC Address......................44...
  • Page 6 Chapter 8 Multicast........................83 IGMP Snooping ......................85 8.1.1 Snooping Config ....................86 8.1.2 Port Config .......................87 8.1.3 VLAN Config ....................88 8.1.4 Multicast VLAN ....................90 Multicast IP .........................93 8.2.1 Multicast IP Table .....................93 8.2.2 Static Multicast IP.....................94 Multicast Filter......................95 8.3.1 IP-Range......................95 8.3.2 Port Filter ......................96 Packet Statistics......................98 Chapter 9 QoS..........................100 DiffServ ........................103...
  • Page 7 11.1.1 Global Config ....................124 11.1.2 SNMP View ....................125 11.1.3 SNMP Group....................126 11.1.4 SNMP User ....................127 11.1.5 SNMP Community..................129 11.2 Notification........................131 11.3 RMON........................133 11.3.1 History Control ....................134 11.3.2 Event Config ....................134 11.3.3 Alarm Config ....................135 Chapter 12 LLDP ........................138 12.1 Basic Config ......................142 12.1.1 Global Config ....................142 12.1.2...
  • Page 8 13.4.2 Tracert......................160 Appendix A: Specifications ......................162 Appendix B: Configuring the PCs ....................163 Appendix C: Glossary.........................165...

  • Page 9: Package Contents

    One power cord  Two mounting brackets and other fittings  Installation Guide  Resource CD for TL-SG2424P switch, including:  This User Guide  Other Helpful Information Note: Make sure that the package contains the above items. If any of the listed items are damaged or...

  • Page 10: Chapter 1 About This Guide

    Chapter 1 About this Guide This User Guide contains information for setup and management of TL-SG2424P 24-Port Gigabit Smart PoE Switch with 4 Combo SFP Slots. Please read this guide carefully before operation. 1.1 Intended Readers This Guide is intended for network managers familiar with IT concepts and network terminologies.
  • Page 11 Chapter Introduction Chapter 4 System This module is used to configure system properties of the switch. Here mainly introduces: System Info: Configure the description, system time and  network parameters of the switch. User Management: Configure the user name and password ...
  • Page 12 Chapter Introduction Chapter 9 QoS This module is used to configure QoS function to provide different quality of service for various network applications and requirements. Here mainly introduces: DiffServ: Configure priorities, port priority, 802.1P priority and  DSCP priority. Bandwidth Control: Configure rate limit feature to control the ...

  • Page 13: Chapter 2 Introduction

    Link aggregation (LACP) increases aggregated bandwidth, optimizing the transport of business critical data. SNMP, RMON, WEB/CLI/Telnet Log-in bring abundant management policies. TL-SG2424P 24-Port Gigabit Smart PoE Switch with 4 Combo SFP Slots is also a Power Sourcing Equipment. All the Auto-Negotiation RJ45 ports on the switch support Power over Ethernet function, which can automatically detect and supply power with those powered devices complying with IEEE 802.3af and IEEE 802.3at.

  • Page 14: Appearance Description

    Duplex mode of SFP port is 1000MFD.  LEDs TL-SG2424P has a LED mode switch button which is for switching the LED status indication. When the Speed LED is on, the port LED is indicating the data transmission rate. When the PoE LED is on, the port LED is indicating the power supply status.

  • Page 15: Rear Panel

    Flashing Power-on self-test has failed. No PoE power supply is provided on the port. 2.3.2 Rear Panel The rear panel of TL-SG2424P features a power socket and a Grounding Terminal (marked with ). Figure 2-2 Rear Panel  Grounding Terminal: TL-SG2424P already comes with Lightning Protection Mechanism. You can also ground the switch through the PE (Protecting Earth) cable of AC cord or with Ground Cable.

  • Page 16: Chapter 3 Login To The Switch

    Chapter 3 Login to the Switch 3.1 Login 1) To access the configuration utility, open a web-browser and type in the default address http://192.168.0.1 in the address field of the browser, then press the Enter key. Figure 3-1 Web-browser Tips: To log in to the switch, the IP address of your PC should be set in the same subnet addresses of the switch.
  • Page 17 Figure 3-3 Main Setup-Menu Note: Clicking Apply can only make the new configurations effective before the switch is rebooted. If you want to keep the configurations effective even the switch is rebooted, please click Save Config. You are suggested to click Save Config before cutting off the power or rebooting the switch to avoid losing the new configurations.

  • Page 18: Chapter 4 System

    Chapter 4 System The System module is mainly for system configuration of the switch, including four submenus: System Info, User Management, System Tools and Access Security. 4.1 System Info The System Info, mainly for basic properties configuration, can be implemented on System Summary, Device Description, System Time, Daylight Saving Time and System IP pages.
  • Page 19 Indicates the SFP port is not connected to a device. Indicates the SFP port is at the speed of 1000Mbps. Indicates the SFP port is at the speed of 100Mbps. When the cursor moves on the port, the detailed information of the port will be displayed. Figure 4-2 Port Information Port Info ...

  • Page 20: Device Description

    Bandwidth Utilization  Select Rx to display the bandwidth utilization of receiving packets on this port. Select Tx to display the bandwidth utilization of sending packets on this port. 4.1.2 Device Description On this page you can configure the description of the switch, including device name, device location and system contact.

  • Page 21: Daylight Saving Time

    Figure 4-5 System Time The following entries are displayed on this screen: Time Info  Current System Date: Displays the current date and time of the switch. Current Time Source: Displays the current time source of the switch. Time Config ...
  • Page 22 Choose the menu System→System Info→Daylight Saving Time to load the following page. Figure 4-6 Daylight Saving Time The following entries are displayed on this screen: DST Config  DST Status: Enable or disable the DST. Predefined Mode: Select a predefined DST configuration. USA: First Sunday in April, 02:00 ~ Last Sunday in October, ...

  • Page 23: System Ip

    Note: When the DST is disabled, the predefined mode, recurring mode and date mode cannot be configured. When the DST is enabled, the default daylight saving time is of Europe in predefined mode. 4.1.5 System IP Each device in the network possesses a unique IP Address. You can log on to the Web management page to operate the switch using this IP Address.

  • Page 24: User Management

    Subnet Mask: Enter the subnet mask of the switch. Default Gateway: Enter the default gateway of the switch. Note: Changing the IP address to a different IP segment will interrupt the network communication, so please keep the new IP address in the same IP segment with the local network. The switch only possesses an IP address.
  • Page 25 Figure 4-9 User Config The following entries are displayed on this screen: User Info  User Name: Create a name for users’ login. Access Level: Select the access level to login. Admin: Admin can edit, modify and view all the settings of ...

  • Page 26: System Tools

    4.3 System Tools The System Tools function, allowing you to manage the configuration file of the switch, can be implemented on Config Restore, Config Backup, Firmware Upgrade, System Reboot and System Reset pages. 4.3.1 Config Restore On this page you can upload a backup configuration file to restore your switch to this previous configuration.

  • Page 27: Firmware Upgrade

    4.3.3 Firmware Upgrade The switch system can be upgraded via the Web management page. To upgrade the system is to get more functions and better performance. Go to http://www.tp-link.com to download the updated firmware. Choose the menu System→System Tools→Firmware Upgrade to load the following page.

  • Page 28: System Reboot

    Note: Don’t interrupt the upgrade. Please select the proper software version matching with your hardware to upgrade. To avoid damage, please don't turn off the device while upgrading. After upgrading, the device will reboot automatically. You are suggested to backup the configuration before upgrading. 4.3.4 System Reboot On this page you can reboot the switch and return to the login page.

  • Page 29: Access Control

    4.4.1 Access Control On this page you can control the users logging on to the Web management page to enhance the configuration management security. The definitions of Admin and Guest refer to 4.2 User Management. Choose the menu System→Access Security→Access Control to load the following page. Figure 4-15 Access Control The following entries are displayed on this screen: Access Control Config...

  • Page 30: Ssl Config

    Port: The field can be available for configuration only when Port-based mode is selected. Only the users connected to these ports you set here are allowed for login. Session Config  Session Timeout: If you do nothing with the Web management page within the timeout time, the system will log out automatically.

  • Page 31: Ssh Config

    Figure 4-16 SSL Config The following entries are displayed on this screen: Global Config  SSL: Select Enable/Disable the SSL function on the switch. Certificate Download  Certificate File: Select the desired certificate to download to the switch. The certificate must be BASE64 encoded. Key Download ...
  • Page 32 Comprising server and client, SSH has two versions, V1 and V2 which are not compatible with each other. In the communication, SSH server and client can auto-negotiate the SSH version and the encryption algorithm. After getting a successful negotiation, the client sends authentication request to the server for login, and then the two can communicate with each other after successful authentication.
  • Page 33 Key File: Select the desired key file to download. Download: Click the Download button to download the desired key file to the switch. Note: Please ensure the key length of the downloaded file is in the range of 256 to 3072 bits. After the Key File is downloaded, the user’s original key of the same type will be replaced.
  • Page 34 Application Example 2 for SSH: Network Requirements  1. Log on to the switch via password authentication using SSH and the SSH function is enabled on the switch. 2. PuTTY client software is recommended. Configuration Procedure  1. Select the key type and key length, and generate SSH key. Note: The key length is in the range of 256 to 3072 bits.
  • Page 35 3. On the Web management page of the switch, download the public key file saved in the computer to the switch. Note: 1. The key type should accord with the type of the key file. 2. The SSH key downloading cannot be interrupted. 4.
  • Page 36 5. After the public key and private key are downloaded, please log on to the interface of PuTTY and enter the IP address for login. After successful authentication, please enter the login user name. If you log on to the switch without entering password, it indicates that the key has been successfully downloaded.

  • Page 37: Chapter 5 Switching

    Chapter 5 Switching Switching module is used to configure the basic functions of the switch, including four submenus: Port, LAG, Traffic Monitor and MAC Address. 5.1 Port The Port function, allowing you to configure the basic features for the port, is implemented on the Port Config, Port Mirror, Port Security, Port Isolation and Loopback Detection pages.

  • Page 38: Port Mirror

    Description: Give a description to the port for identification. Status: Allows you to Enable/Disable the port. When Enable is selected, the port can forward the packets normally. Speed and Duplex: Select the Speed and Duplex mode for the port. The device connected to the switch should be in the same Speed and Duplex mode with the switch.
  • Page 39 Mirroring: Displays the mirroring port number. Mode: Displays the mirror mode, the value can be "Ingress" or "Egress". Mirrored Port: Displays the mirrored ports. Operation: Click Edit to configure the mirror group. Click Edit to display the following figure. Figure 5-3 Mirroring Port The following entries are displayed on this screen: Mirror Group ...

  • Page 40: Port Security

    Select: Select the desired port as a mirrored port. It is multi-optional. Port: Displays the port number. Ingress: Select Enable/Disable the Ingress feature. When the Ingress is enabled, the incoming packets received by the mirrored port will be copied to the mirroring port. Egress: Select Enable/Disable the Egress feature.
  • Page 41 Figure 5-4 Port Security The following entries are displayed on this screen: Port Security  Select: Select the desired port for Port Security configuration. It is multi-optional. Port: Displays the port number. Max Learned MAC: Specify the maximum number of MAC addresses that can be learned on the port.

  • Page 42: Port Isolation

    Note: The Port Security function is disabled for the LAG port member. Only the port is removed from the LAG, will the Port Security function be available for the port. 5.1.4 Port Isolation Port Isolation provides a method of restricting traffic flow to improve the network security by forbidding the port to forward packets to the ports that are not on its forward portlist.

  • Page 43: Loopback Detection

    Port Isolation List  Port: Display the port number. Forward Portlist: Display the forwardlist. 5.1.5 Loopback Detection With loopback detection feature enabled, the switch can detect loops using loopback detection packets. When a loop is detected, the switch will display an alert or further block the corresponding port according to the port configuration.

  • Page 44: Lag

    Detection Interval: Set a Loopback Detection interval between 1 and 1000 seconds. By default, it’s 30 seconds. Automatic Recovery Time after which the blocked port would automatically recover to Time : normal status. It can be set as integral times of detection interval. Web Refresh Status: Here you can enable or disable web automatic refresh.

  • Page 45: Lag Table

    If the ports, which are enabled for the 802.1Q VLAN, Voice VLAN, STP, QoS and Port  Configuration (Speed and Duplex, Flow Control), are in a LAG, their configurations should be the same. The ports, which are enabled for the Port Security, Port Mirror, MAC Address Filtering and ...

  • Page 46: Static Lag

    SRC IP + DST IP: When this option is selected, the  Aggregate Arithmetic will apply to the source and destination IP addresses of the packets. LAG Table  Select: Select the desired LAG. It is multi-optional. Group Number: Displays the LAG number here. Description: Displays the description of LAG.

  • Page 47: Lacp Config

    Figure 5-8 Manually Config The following entries are displayed on this screen: LAG Config  Group Number: Select a Group Number for the LAG. Description: Displays the description of LAG. LAG Table  Member Port: Select the port as the LAG member. Clearing all the ports of the LAG will delete this LAG.
  • Page 48 aggregation group. In an aggregation group, the port with smaller port priority will be considered as the preferred one. If the two port priorities are equal, the port with smaller port number is preferred. After an aggregation group is established, the selected ports can be aggregated together as one port to transmit packets.

  • Page 49: Traffic Monitor

    Port: Displays the port number. Admin Key: Specify an Admin Key for the port. The member ports in a dynamic aggregation group must have the same Admin Key. Port Priority: Specify a Port Priority for the port. This value determines the priority of the port to be selected as the dynamic aggregation group member.

  • Page 50: Traffic Statistics

    The following entries are displayed on this screen: Auto Refresh  Auto Refresh: Allows you to Enable/Disable refreshing the Traffic Summary automatically. Refresh Rate: Enter a value in seconds to specify the refresh interval. Traffic Summary  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered.
  • Page 51 Figure 5-11 Traffic Statistics The following entries are displayed on this screen: Auto Refresh  Auto Refresh: Allows you to Enable/Disable refreshing the Traffic Summary automatically. Refresh Rate: Enter a value in seconds to specify the refresh interval. Statistics  Port: Enter a port number and click the Select button to view the traffic statistics of the corresponding port.

  • Page 52: Mac Address

    (Alignment Error). The length of the packet is between 64 bytes and 1518 bytes. UndersizePkts: Displays the number of the received packets (excluding error packets) that are less than 64 bytes long. Pkts64Octets: Displays the number of the received packets (including error packets) that are 64 bytes long.

  • Page 53: Address Table

    This function includes four submenus: Address Table, Static Address, Dynamic Address and Filtering Address. 5.4.1 Address Table On this page, you can view all the information of the Address Table. Choose the menu Switching→MAC Address→Address Table to load the following page. Figure 5-12 Address Table The following entries are displayed on this screen: Search Option...

  • Page 54: Static Address

    Aging Status: Displays the Aging status of the MAC address. 5.4.2 Static Address The static address table maintains the static address entries which can be added or removed manually, independent of the aging time. In the stable networks, the static MAC address entries can facilitate the switch to reduce broadcast packets and remarkably enhance the efficiency of packets forwarding without learning the address.

  • Page 55: Dynamic Address

    Static Address Table  Select: Select the entry to delete or modify the corresponding port number. It is multi-optional. MAC Address: Displays the static MAC Address. VLAN ID: Displays the corresponding VLAN ID of the MAC address. Port: Displays the corresponding Port number of the MAC address. Here you can modify the port number to which the MAC address is bound.
  • Page 56 Figure 5-14 Dynamic Address The following entries are displayed on this screen: Aging Config  Auto Aging: Allows you to Enable/Disable the Auto Aging feature. Aging Time: Enter the Aging Time for the dynamic address. Search Option  Search Option: Select a Search Option from the pull-down list and click the Search button to find your desired entry in the Dynamic Address Table.

  • Page 57: Filtering Address

    Bind: Click the Bind button to bind the MAC address of your selected entry to the corresponding port statically. Tips: Setting aging time properly helps implement effective MAC address aging. The aging time that is too long or too short results decreases the performance of the switch. If the aging time is too long, excessive invalid MAC address entries maintained by the switch may fill up the MAC address table.

  • Page 58: Dhcp Filtering

    Search Option  Search Option: Select a Search Option from the pull-down list and click the Search button to find your desired entry in the Filtering Address Table. MAC: Enter the MAC address of your desired entry.  VLAN ID: Enter the VLAN ID number of your desired entry. ...
  • Page 59 Figure 5-16 Network diagram of DHCP For different DHCP clients, DHCP server provides three IP address assigning methods: Manually assign the IP address: Allows the administrator to bind the static IP address to a specific client (e.g.: WWW Server) via the DHCP server. Automatically assign the IP address: DHCP server assigns the IP address without an expiry time limitation to the clients.
  • Page 60 packet and broadcast the DHCP-REQUEST packet which includes the assigned IP address of the DHCP-OFFER packet. （4） DHCP-ACK Stage: Since the DHCP-REQUEST packet is broadcasted, all DHCP servers on the network segment can receive it. However, only the requested server processes the request.
  • Page 61 Figure 5-19 DHCP Filtering The following entries are displayed on this screen: DHCP Filtering  Enable/Disable the DHCP Filtering function globally. DHCP Filtering: Trusted Port  Here you can select the desired port(s) to be Trusted Port(s). Only the Trusted Port(s) can receive DHCP packets from DHCP Servers.

  • Page 62: Chapter 6 Vlan

    Chapter 6 VLAN The traditional Ethernet is a data network communication technology based on CSMA/CD (Carrier Sense Multiple Access/Collision Detect) via shared communication medium. Through the traditional Ethernet, the overfull hosts in LAN will result in serious collision, flooding broadcasts, poor performance or even breakdown of the Internet.

  • Page 63: Q Vlan

    with 802.1Q VLAN. If a packet is matched, the switch will add a corresponding VLAN tag to it and forward it in the corresponding VLAN. 6.1 802.1Q VLAN VLAN tags in the packets are necessary for the switch to identify packets of different VLANs. The switch works at the data link layer in OSI model and it can identify the data link layer encapsulation of the packet only, so you can add the VLAN tag field into the data link layer encapsulation for identification.
  • Page 64 can receive and forward the packets of multiple VLANs. When the packets are forwarded by the TRUNK port, its VLAN tag will not be changed. （3） GENERAL: The GENERAL port can be added in multiple VLANs and set various egress rules according to the different VLANs.

  • Page 65: Vlan Config

    6.1.1 VLAN Config On this page, you can view the current created 802.1Q VLAN. Choose the menu VLAN→802.1Q VLAN→VLAN Config to load the following page. Figure 6-3 VLAN Table To ensure the normal communication of the factory switch, the default VLAN of all ports is set to VLAN1.
  • Page 66 Figure 6-4 Create or Modify 802.1Q VLAN The following entries are displayed on this screen: VLAN Config  VLAN ID: Enter the ID number of VLAN. Description: Give a description to the VLAN for identification. Check: Click the Check button to check whether the VLAN ID you entered is valid or not.

  • Page 67: Port Config

    Egress Rule: Select the Egress Rule for the VLAN port member. The default egress rule is UNTAG. TAG: All packets forwarded by the port are tagged. The  packets contain VLAN information. UNTAG: Packets forwarded by the port are untagged. ...
  • Page 68 Select the Link Type from the pull-down list for the port. Link Type: ACCESS: The ACCESS port can be added in a single VLAN,  and the egress rule of the port is UNTAG. The PVID is same as the current VLAN ID. If the current VLAN is deleted, the PVID will be set to 1 by default.

  • Page 69: Application Example For 802.1Q Vlan

    Configuration Procedure: Step Operation Description Set the link type for Required. On the VLAN→802.1Q VLAN→Port Config page, set port. the link type for the port based on its connected device. Create VLAN. Required. On the VLAN→802.1Q VLAN→VLAN Config page, click the Create button to create a VLAN. Enter the VLAN ID and the description for the VLAN.
  • Page 70 Configuration Procedure  Configure switch A  Step Operation Description Configure Required. On VLAN→802.1Q VLAN→Port Config page, configure Link Type of the the link type of Port 2, Port 3 and Port 4 as ACCESS, TRUNK and ports ACCESS respectively Create VLAN10 Required.

  • Page 71: Chapter 7 Spanning Tree

    Chapter 7 Spanning Tree STP (Spanning Tree Protocol), subject to IEEE 802.1D standard, is to disbranch a ring network in the Data Link layer in a local network. Devices running STP discover loops in the network and block ports by exchanging information, in that way, a ring network can be disbranched to form a tree-topological ring-free network to prevent packets from being duplicated and forwarded endlessly in the network.
  • Page 72 Port: Port 3 is the root port of switch B and port 5 is the root port of switch C; port 1 is the  designated port of switch A and port 4 is the designated port of switch B; port 6 is the blocked port of switch C.
  • Page 73 STP Generation  In the beginning  In the beginning, each switch regards itself as the root, and generates a configuration BPDU for each port on it as a root, with the root path cost being 0, the ID of the designated bridge being that of the switch, and the designated port being itself.
  • Page 74 RSTP (Rapid Spanning Tree Protocol), evolved from the 802.1D STP standard, enable Ethernet ports to transit their states rapidly. The premises for the port in the RSTP to transit its state rapidly are as follows. The condition for the root port to transit its port state rapidly: The old root port of the switch ...
  • Page 75 Figure 7-2 Basic MSTP diagram MSTP  MSTP divides a network into several MST regions. The CST is generated between these MST regions, and multiple spanning trees can be generated in each MST region. Each spanning tree is called an instance. As well as STP, MSTP uses BPDUs to generate spanning tree. The only difference is that the BPDU for MSTP carries the MSTP configuration information on the switches.

  • Page 76: Stp Config

    Figure 7-3 Port roles The Spanning Tree module is mainly for spanning tree configuration of the switch, including four submenus: STP Config, Port Config, MSTP Instance and STP Security. 7.1 STP Config The STP Config function, for global configuration of spanning trees on the switch, can be implemented on STP Config and STP Summary pages.
  • Page 77 The following entries are displayed on this screen: Global Config  STP: Select Enable/Disable STP function globally on the switch. Version: Select the desired STP version on the switch. STP: Spanning Tree Protocol.  RSTP: Rapid Spanning Tree Protocol.  MSTP: Multiple Spanning Tree Protocol.

  • Page 78: Stp Summary

    If the TxHold Count parameter is too large, the number of MSTP packets being sent in each hello time may be increased with occupying too much network resources. The default value is recommended. 7.1.2 STP Summary On this page you can view the related parameters for Spanning Tree function. Choose the menu Spanning Tree→STP Config→STP Summary to load the following page.
  • Page 79 Figure 7-6 Port Config The following entries are displayed on this screen: Port Config  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for STP configuration. It is multi-optional. Port: Displays the port number of the switch.

  • Page 80: Mstp Instance

    Port Role: Displays the role of the port played in the STP Instance. Root Port: Indicates the port that has the lowest path cost from  this bridge to the Root Bridge and forwards packets to the root. Designated Port: Indicates the port that forwards packets to a ...

  • Page 81: Instance Config

    Figure 7-7 Region Config The following entries are displayed on this screen: Region Config  Region Name: Create a name for MST region identification using up to 32 characters. Revision: Enter the revision from 0 to 65535 for MST region identification. 7.3.2 Instance Config Instance Configuration, a property of MST region, is used to describe the VLAN to Instance mapping configuration.

  • Page 82: Instance Port Config

    The following entries are displayed on this screen: Instance Table  Instance ID Select: Click the Select button to quick-select the corresponding Instance ID based on the ID number you entered. Select: Select the desired Instance ID for configuration. It is multi-optional. Instance: Displays Instance ID of the switch.
  • Page 83 Figure 7-9 Instance Port Config The following entries are displayed on this screen: Port Config  Instance ID: Select the desired instance ID for its port configuration. Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port to specify its priority and path cost.

  • Page 84: Stp Security

    Note: The port status of one port in different spanning tree instances can be different. Global configuration Procedure for Spanning Tree function: Step Operation Description Make clear roles the switches Preparation. play spanning tree instances: root bridge designated bridge Globally configure MSTP Required.
  • Page 85 Root Protect  A CIST and its secondary root bridges are usually located in the high-bandwidth core region. Wrong configuration or malicious attacks may result in configuration BPDU packets with higher priorities being received by the legal root bridge, which causes the current legal root bridge to lose its position and network topology jitter to occur.
  • Page 86 Figure 7-10 Port Protect The following entries are displayed on this screen: Port Protect  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for port protect configuration. It is multi-optional.

  • Page 87: Tc Protect

    7.4.2 TC Protect When TC Protect is enabled for the port on Port Protect page, the TC threshold and TC protect cycle need to be configured on this page. Choose the menu Spanning Tree→STP Security→TC Protect to load the following page. Figure 7-11 TC Protect The following entries are displayed on this screen: TC Protect...
  • Page 88 MSTP function for the port. Configure the region name and Spanning Tree→MSTP Instance→Region the revision of MST region Config page, configure the region as TP-LINK and keep the default revision setting. Configure VLAN-to-Instance Spanning Tree→MSTP Instance→Instance mapping table of the MST...
  • Page 89 MSTP function for the port. Configure the region name and Spanning Tree→MSTP Instance→Region the revision of MST region Config page, configure the region as TP-LINK and keep the default revision setting. Configure VLAN-to-Instance Spanning Tree→MSTP Instance→Instance mapping table of the MST...
  • Page 90 links; the gray paths are the blocked links. For Instance 2 (VLAN102, 104 and 106), the blue paths in the following figure are connected  links; the gray paths are the blocked links. Suggestion for Configuration  Enable TC Protect function for all the ports of switches. ...

  • Page 91: Chapter 8 Multicast

    Chapter 8 Multicast Multicast Overview  In the network, packets are sent in three modes: unicast, broadcast and multicast. In unicast, the source server sends separate copy information to each receiver. When a large number of users require this information, the server must send many pieces of information with the same content to the users.
  • Page 92 Multicast Address  1. Multicast IP Address: As specified by IANA (Internet Assigned Numbers Authority), Class D IP addresses are used as destination addresses of multicast packets. The multicast IP addresses range from 224.0.0.0~239.255.255.255. The following table displays the range and description of several special multicast IP addresses.

  • Page 93: Igmp Snooping

    IGMP Snooping  In the network, the hosts apply to the near Router for joining (leaving) a multicast group by sending IGMP (Internet Group Management Protocol) messages. When the up-stream device forwards down the multicast data, the switch is responsible for sending them to the hosts. IGMP Snooping is a multicast control mechanism, which can be used on the switch for dynamic registration of the multicast group.

  • Page 94: Snooping Config

    3. IGMP Leave Message The host, running IGMPv1, does not send IGMP leave message when leaving a multicast group, as a result, the switch cannot get the leave information of the host momentarily. However, after leaving the multicast group, the host does not send IGMP report message any more, so the switch will remove the port from the corresponding multicast address table when its member port time times out.

  • Page 95: Port Config

    Figure 8-4 Basic Config The following entries are displayed on this screen: Global Config  IGMP Snooping: Select Enable/Disable IGMP Snooping function globally on the switch. Unknown Multicast: Select the operation for the switch to process unknown multicast, Forward or Discard. IGMP Snooping Status ...

  • Page 96: Vlan Config

    Figure 8-5 Port Config The following entries are displayed on this screen: Port Config  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for IGMP Snooping feature configuration. It is multi-optional.
  • Page 97 Figure 8-6 VLAN Config The following entries are displayed on this screen: VLAN Config  VLAN ID: Enter the VLAN ID to enable IGMP Snooping for the desired VLAN. Router Port Time: Specify the aging time of the router port. Within this time, if the switch doesn’t receive IGMP query message from the router port, it will consider this port is not a router port any more.

  • Page 98: Multicast Vlan

    Note: The settings here will be invalid when multicast VLAN is enabled Configuration procedure: Step Operation Description Enable IGMP Snooping Required. Enable IGMP Snooping globally on the switch function port Multicast→IGMP Snooping→Snooping Config and Port Config page. Configure multicast Optional. Configure the multicast parameters for VLANs parameters for VLANs on Multicast→IGMP Snooping→VLAN Config page.
  • Page 99 Multicast VLAN  Multicast VLAN: Select Enable/Disable Multicast VLAN feature. VLAN ID: Enter the VLAN ID of the multicast VLAN. Router Port Time: Specify the aging time of the router port. Within this time, if the switch doesn’t receive IGMP query message from the router port, it will consider this port is not a router port any more.
  • Page 100 Look over the configuration If it is successfully configured, the VLAN ID of the multicast VLAN will be displayed in the IGMP Snooping Status table on the Multicast→IGMP Snooping→ Snooping Config page. Application Example for Multicast VLAN: Network Requirements  Multicast source sends multicast streams via the router, and the streams are transmitted to user A and user B through the switch.

  • Page 101: Multicast Ip

    Configure ports On VLAN→802.1Q VLAN function pages. For port 3, configure its link type as GENERAL and its egress rule as TAG, and add it to VLAN3, VLAN4 and VLAN5. For port 4, configure its link type as GENERAL and its egress rule as UNTAG, and add it to VLAN3 and VLAN 4.

  • Page 102: Static Multicast Ip

    VLAN ID: Enter the VLAN ID the desired entry must carry. Port: Select the port number the desired entry must carry. Type: Select the type the desired entry must carry. All: Displays all multicast IP entries.  Static: Displays all static multicast IP entries. ...

  • Page 103: Multicast Filter

    VLAN ID: Enter the VLAN ID of the multicast IP. Forward Port: Enter the forward port of the multicast group. Search Option  Search Option: Select the rules for displaying multicast IP table to find the desired entries quickly. All: Displays all static multicast IP entries. ...

  • Page 104: Port Filter

    Figure 8-10 Multicast Filter The following entries are displayed on this screen: Create IP-Range  IP Range ID: Enter the IP-range ID. Start Multicast IP: Enter start multicast IP of the IP-range you set. End Multicast IP: Enter end multicast IP of the IP-range you set. IP-Range Table ...
  • Page 105 Figure 8-11 Port Filter The following entries are displayed on this screen: Port Filter Config  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for multicast filtering. It is multi-optional. Port: Displays the port number.

  • Page 106: Packet Statistics

    Configuration Procedure: Step Operation Description Configure IP-Range Required. Configure IP-Range filtered Multicast→Multicast Filter→IP-Range page. Configure multicast filter Optional. Configure multicast filter rules for ports on rules for ports Multicast→Multicast Filter→Port Filter page. 8.4 Packet Statistics On this page you can view the multicast data traffic on each port of the switch, which facilitates you to monitor the IGMP messages in the network.
  • Page 107 IGMP Statistics  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Port: Displays the port number of the switch. Query Packet: Displays the number of query packets the port received. Report Packet (V1): Displays the number of IGMPv1 report packets the port received.

  • Page 108: Chapter 9 Qos

    Chapter 9 QoS QoS (Quality of Service) functions to provide different quality of service for various network applications and requirements and optimize the bandwidth resource distribution so as to provide a network service experience of a better quality.  This switch classifies the ingress packets, maps the packets to different priority queues and then forwards the packets according to specified scheduling algorithms to implement QoS function.
  • Page 109 2. 802.1P Priority Figure 9-2 802.1Q frame As shown in the figure above, each 802.1Q Tag has a Pri field, comprising 3 bits. The 3-bit priority field is 802.1p priority in the range of 0 to 7. 802.1P priority determines the priority of the packets based on the Pri value.
  • Page 110 Figure 9-4 SP-Mode WRR-Mode: Weight Round Robin Mode. In this mode, packets in all the queues are sent in order based on the weight value for each queue and every queue can be assured of a certain service time. The weight value indicates the occupied proportion of the resource. WRR queue overcomes the disadvantage of SP queue that the packets in the queues with lower priority can not get service for a long time.

  • Page 111: Diffserv

    The QoS module is mainly for traffic control and priority configuration, including three submenus: DiffServ, Bandwidth Control and Voice VLAN. 9.1 DiffServ This switch classifies the ingress packets, maps the packets to different priority queues and then forwards the packets according to specified scheduling algorithms to implement QoS function. This switch implements three priority modes based on port, on 802.1P and on DSCP, and supports four queue scheduling algorithms.

  • Page 112: Dscp Priority

    Configuration Procedure: Step Operation Description Select the port priority Required. On QoS→DiffServ→Port Priority page, configure the port priority. Configure the mapping relation Required. On QoS→DiffServ→802.1P/CoS mapping between the 802.1P priority page, configure the mapping relation between the and TC 802.1P priority and TC. Select a schedule mode Required.

  • Page 113: P/Cos Mapping

    The following entries are displayed on this screen: DSCP Priority Config  DSCP Priority: Select Enable or Disable DSCP Priority. Priority Level  DSCP: Indicates the priority determined by the DS region of IP datagram. It ranges from 0 to 63. Priority: Indicates the 802.1P priority the packets with tag are mapped to.

  • Page 114: Schedule Mode

    The following entries are displayed on this screen: Priority and CoS-mapping Config  Tag-id/Cos-id: Indicates the precedence level defined by IEEE802.1P and the CoS ID. Queue TC-id: Indicates the priority level of egress queue the packets with tag and CoS-id are mapped to. The priority levels of egress queue are labeled as TC0, TC1, TC2 and TC3.

  • Page 115: Bandwidth Control

    SP+WRR-Mode: Strict-Priority + Weight Round Robin Mode. In this mode, this switch provides two scheduling groups, SP group and WRR group. Queues in SP group and WRR group are scheduled strictly based on strict-priority mode while the queues inside WRR group follow the WRR mode.

  • Page 116: Storm Control

    The following entries are displayed on this screen:  Rate Limit Config Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for Rate configuration. It is multi-optional. Port: Displays the port number of the switch.
  • Page 117 Figure 9-11 Storm Control The following entries are displayed on this screen:  Storm Control Config Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for Storm Control configuration. It is multi-optional.

  • Page 118: Voice Vlan

    9.3 Voice VLAN Voice VLANs are configured specially for voice data stream. By configuring Voice VLANs and adding the ports with voice devices attached to voice VLANs, you can perform QoS-related configuration for voice data, ensuring the transmission priority of voice data stream and voice quality.
  • Page 119 Port Voice VLAN Voice Link type of the port and processing mode Mode Stream Type Automatic Mode voice ACCESS: Not supported. stream TRUNK: Supported. The default VLAN of the port can not be voice VLAN. GENERAL: Supported. The default VLAN of the port can not be voice VLAN and the egress rule of the access port in the default VLAN should be TAG.

  • Page 120: Global Config

    Note: Don’t transmit voice stream together with other business packets in the voice VLAN except for some special requirements. The Voice VLAN function can be implemented on Global Config, Port Config and OUI Config pages. 9.3.1 Global Config On this page, you can configure the global parameters of the voice VLAN, including VLAN ID, aging time, the transmission priority of the voice packets and so on.
  • Page 121 Figure 9-13 Port Config Note: To enable voice VLAN function for the LAG member port, please ensure its member state accords with its port mode. If a port is a member port of voice VLAN, changing its port mode to be “Auto” will make the port leave the voice VLAN and will not join the voice VLAN automatically until it receives voice streams.

  • Page 122: Oui Config

    Security Mode: Configure the security mode for forwarding packets. Disable: All packets are forwarded.  Enable: Only voice data are forwarded.  Member State: Displays the state of the port in the current voice VLAN. LAG: Displays the LAG number which the port belongs to. 9.3.3 OUI Config The switch supports OUI create and add the MAC address of the special voice device to the OUI table of the switch.
  • Page 123 Description: Displays the description of the OUI. Configuration Procedure of Voice VLAN: Step Operation Description Configure Required. On VLAN→802.1Q VLAN→Port Config page, configure link type of the the link type of ports of the voice device. port Create VLAN Required. On VLAN→802.1Q VLAN→Port Config page, click the Create button to create a VLAN.

  • Page 124: Chapter 10 Poe

     network hubs, embedded computers etc. TL-SG2424P 24-Port Gigabit Smart PoE Switch with 4 Combo SFP Slots is a Power Sourcing Equipment (PSE). All the Auto-Negotiation RJ45 ports on the switch support Power over Ethernet (PoE) function, which can automatically detect and supply power for those powered devices (PDs) complying with IEEE 802.3af and IEEE 802.3at.

  • Page 125: Poe Config

    10.1.1 PoE Config On this page, you can configure the parameters to implement PoE function. Choose the menu PoE→PoE Config→PoE Config to load the following page. Figure 10-1 PoE Config The following items are displayed on this screen: Global Config ...

  • Page 126: Poe Profile

    Power Limit Defines the max power the corresponding port can supply. Class1 (0.1w-30w): represents 4w, Class2 represents 7w, Class3 represents 15.4w and Class4 represents 30w. Time Range: Select the time range for the PoE port to supply power. If No limit is selected, the PoE port will supply power all the time.

  • Page 127: Poe Time-Range

    PoE Priority: The priority levels include High, Middle and Low in descending order. When the supply power exceeds the system power limit, the PD linked to the port with lower priority will be disconnected. Power Limit: Defines the max power the corresponding port can supply. Class1 represents 4w, Class2 represents 7w, Class3 represents 15.4w, and Class4 represents 30w.

  • Page 128: Poe Time-Range Create

    Slice: Displays the time-slice of the time-range. Mode: Displays the mode the time-range adopts. Operation: Click Edit to modify this time-range and click Detail to display the complete information of this time–range. 10.2.2 PoE Time-Range Create On this page you can create time-ranges. Choose the menu PoE→PoE Time-Range→PoE Time-Range Create to load the following page.

  • Page 129: Poe Holiday Config

    Time-Slice Table  Index: Displays the index of the time-slice. Start Time: Displays the start time of the time-slice. End Time: Displays the end time of the time-slice. Delete: Click the Delete button to delete the corresponding time-slice. 10.2.3 PoE Holiday Config Holiday mode is applied as a different secured access control policy from the week mode.

  • Page 130: Chapter 11 Snmp

    Chapter 11 SNMP SNMP Overview  SNMP (Simple Network Management Protocol) has gained the most extensive application on the UDP/IP networks. SNMP provides a management frame to monitor and maintain the network devices. It is used for automatically managing the various network devices no matter the physical differences of the devices.
  • Page 131 application requirement. SNMP v1: SNMP v1 adopts Community Name authentication. The community name is used to define the relation between SNMP Management Station and SNMP Agent. The SNMP packets failing to pass community name authentication are discarded. The community name can limit access to SNMP Agent from SNMP NMS, functioning as a password.

  • Page 132: Snmp Config

    The User configured in a SNMP Group can manage the switch via the client program on management station. The specified User Name and the Auth/Privacy Password are used for SNMP Management Station to access the SNMP Agent, functioning as the password. SNMP module is used to configure the SNMP function of the switch, including three submenus: SNMP Config, Notification and RMON.

  • Page 133: Snmp View

    Note: The amount of Engine ID characters must be even. 11.1.2 SNMP View The OID (Object Identifier) of the SNMP packets is used to describe the managed objects of the switch, and the MIB (Management Information Base) is the set of the OIDs. The SNMP View is created for the SNMP management station to manage MIB objects.

  • Page 134: Snmp Group

    11.1.3 SNMP Group On this page, you can configure SNMP Group to control the network access by providing the users in various groups with different management rights via the Read View, Write View and Notify View. Choose the menu SNMP→SNMP Config→SNMP Group to load the following page. Figure 11-5 SNMP Group The following entries are displayed on this screen: Group Config...

  • Page 135: Snmp User

    Write View: Select the View to be the Write View. The management access is writing only and changes can be made to the assigned SNMP View. The View defined both as the Read View and the Write View can be read and modified. Notify View: Select the View to be the Notify View.
  • Page 136 Figure 11-6 SNMP User The following entries are displayed on this screen: User Config  User Name: Enter the User Name here. User Type: Select the type for the User. Local User: Indicates that the user is connected to a ...

  • Page 137: Snmp Community

    User Table  Select: Select the desired entry to delete the corresponding User. It is multi-optional. User Name: Displays the name of the User. User Type: Displays the User Type. Group Name: Displays the Group Name of the User. Security Model: Displays the Security Model of the User.

  • Page 138: Configuration Procedure

    Access: Defines the access rights of the community. read-only: Management right of the Community is  restricted to read-only, and changes cannot be made to the corresponding View. read-write: Management right of the Community is  read-write changes made corresponding View. MIB View: Select the MIB View for the community to access.

  • Page 139: Notification

    If SNMPv1 or SNMPv2c is employed, please take the following steps:  Step Operation Description Enable SNMP function globally. Required. On the SNMP→SNMP Config→Global Config page, enable SNMP function globally. Create SNMP View. Required. On the SNMP→SNMP Config→SNMP View page, create SNMP View of the management agent.
  • Page 140 Figure 11-8 Notification Config The following entries are displayed on this screen: Create Notification  IP Address: Enter the IP Address of the management Host. UDP Port: Enter the number of the UDP port used to send notifications. The UDP port functions with the IP address for the notification sending.

  • Page 141: Rmon

    Notification Table  Select: Select the desired entry to delete the corresponding management station. IP Address: Displays the IP Address of the management host. UDP Port: Displays the UDP port used to send notifications. User: Displays the User name of the management station. Security Model: Displays the Security Model of the management station.

  • Page 142: History Control

    The RMON Groups can be configured on the History Control, Event Config and Alarm Config pages. 11.3.1 History Control On this page, you can configure the History Group for RMON. Choose the menu SNMP→RMON→History Control to load the following page. Figure 11-9 History Control The following entries are displayed on this screen: History Control Table...

  • Page 143: Alarm Config

    Figure 11-10 Event Config The following entries are displayed on this screen: Event Table  Select: Select the desired entry for configuration. Index: Displays the index number of the entry. User: Enter the name of the User or the community to which the event belongs.
  • Page 144 Figure 11-11 Alarm Config The following entries are displayed on this screen: Alarm Table  Select: Select the desired entry for configuration. Index: Displays the index number of the entry. Variable: Select the alarm variables from the pull-down list. Port: Select the port on which the Alarm entry acts.
  • Page 145 Interval: Enter the alarm interval time in seconds. Owner: Enter the name of the device or user that defined the entry. Status: Select Enable/Disable the corresponding alarm entry. Note: When alarm variables exceed the Threshold on the same direction continuously for several times, an alarm event will only be generated on the first time, that is, the Rising Alarm and Falling Alarm are triggered alternately for that the alarm following to Rising Alarm is certainly a Falling Alarm and vice versa.

  • Page 146: Chapter 12 Lldp

    Chapter 12 LLDP LLDP (Link Layer Discovery Protocol) is a Layer 2 protocol that is used for network devices to advertise their own device information periodically to neighbors on the same IEEE 802 local area network. The advertised information, including details such as device identification, capabilities and configuration settings, is represented in TLV (Type/Length/Value) format according to the IEEE 802.1ab standard, and these TLVs are encapsulated in LLDPDU (Link Layer Discovery Protocol Data Unit).
  • Page 147  Tx&Rx: the port can both transmit and receive LLDPDUs.  Rx_Only: the port can receive LLDPDUs only.  Tx_Only: the port can transmit LLDPDUs only.  Disable: the port cannot transmit or receive LLDPDUs. LLDPDU transmission mechanism  If the ports are working in TxRx or Tx mode, they will advertise local information by sending LLDPDUs periodically.
  • Page 148 The following table shows the details about the currently defined TLVs. TLV type TLV Name Description Usage in LLDPDU End of LLDPDU Mark the end of the TLV sequence in LLDPDUs. Mandatory Any information following an End Of LLDPDU TLV shall be ignored. Chassis ID Identifies the Chassis address of the connected Mandatory...
  • Page 149 Note: For detailed introduction of TLV, please refer to IEEE 802.1AB standard and ANSI/TIA-1057. In TP-LINK switch, the following LLDP optional TLVs are supported. Port Description TLV The Port Description TLV allows network management to advertise the IEEE 802 LAN station's port description.

  • Page 150: Basic Config

    The LLDP module is mainly for LLDP function configuration of the switch, including three submenus: Basic Config, Device Info, Device Statistics and LLDP-MED. 12.1 Basic Config LLDP is configured on the Global Config and Port Config pages. 12.1.1 Global Config On this page you can configure the LLDP parameters of the device globally.

  • Page 151: Port Config

    Fast Start Times: When the port's LLDP state transforms from Disable (or Rx_Only) to Tx&Rx (or Tx_Only), the fast start mechanism will be enabled, that is, the transmit interval will be shorten to a second, and several LLDPDUs will be sent out (the number of LLDPDUs equals this parameter).

  • Page 152: Device Info

    12.2 Device Info You can view the LLDP information of the local device and its neighbors on the Local Info and Neighbor Info pages respectively. 12.2.1 Local Info On this page you can see all ports' configuration and system information. Choose the menu LLDP→Device Info→Local Info to load the following page.

  • Page 153: Neighbor Info

    Refresh Rate: Specify the auto refresh rate. Local Info  Enter the desired port number and click Select to display the information of the corresponding port. 12.2.2 Neighbor Info On this page you can get the information of the neighbors. Choose the menu LLDP→Device Info→Neighbor Info to load the following page.
  • Page 154 Figure 12-5 LLDP Statistic Information The following entries are displayed on this screen: Auto Refresh  Auto Refresh: Enable/Disable the auto refresh function. Refresh Rate: Specify the auto refresh rate. Global Statistics  Last Update: Displays latest update time of the statistics. Total Inserts: Displays the number of neighbors inserted till last update time.

  • Page 155: Lldp-Med

    Communication Device Endpoint (Class III): The class of Endpoint Device that directly supports end users of the IP communication system. The following LLDP-MED optional TLVs are supported in TL-SG2424P. Network Policy TLV The Network Policy TLV allows both Network Connectivity...

  • Page 156: Global Config

    Extended Power-Via-MDI TLV The Extended Power-Via-MDI TLV is intended to enable advanced power management between LLDP-MED Endpoint Network Connectivity Devices, allows advertisement of fine grained power requirement details, Endpoint power priority, as well as both Endpoint and Network Connectivity Device power status. Inventory TLV The Inventory TLV set contains seven basic Inventory management TLVs, that is, Hardware Revision TLV, Firmware...
  • Page 157 Figure 12-7 LLDP-MED Port Configuration The following entries are displayed on this screen: LLDP-MED Port Config  Port Select: Select the desired port to configure. LLDP-MED Status: Configure the port's LLDP-MED status: Enable: Enable the port's LLDP-MED status, and the port's ...

  • Page 158: Local Info

    Included TLVs  Select TLVs to be included in outgoing LLDPDU. Location Identification Parameters  Configure the Location Identification TLV's content in outgoing LLDPDU of the port. Emergency Emergency number is Emergency Call Service ELIN identifier, Number: which is used during emergency call setup to a traditional CAMA or ISDN trunk-based PSAP.

  • Page 159: Neighbor Info

    Figure 12-8 LLDP-MED Local Information The following entries are displayed on this screen: Auto Refresh  Auto Refresh: Enable/Disable the auto refresh function. Refresh Rate: Specify the auto refresh rate. Local Info  Enter the desired port number and click Select to display the information of the corresponding port.
  • Page 160 Figure 12-9 LLDP-MED Neighbor Information The following entries are displayed on this screen: Auto Refresh  Auto Refresh: Enable/Disable the auto refresh function. Refresh Rate: Specify the auto refresh rate. Neighbor Info  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered.

  • Page 161: Chapter 13 Maintenance

    Chapter 13 Maintenance Maintenance module, assembling the commonly used system tools to manage the switch, provides the convenient method to locate and solve the network problem. （1） System Monitor: Monitor the utilization status of the memory and the CPU of switch. （2）...

  • Page 162: Memory Monitor

    Click the Monitor button to enable the switch to monitor and display its CPU utilization rate every four seconds. 13.1.2 Memory Monitor Choose the menu Maintenance→System Monitor→Memory Monitor to load the following page. Figure 13-2 Memory Monitor Click the Monitor button to enable the switch to monitor and display its Memory utilization rate every four seconds.

  • Page 163: Log Table

    notifications Normal but significant conditions informational Informational messages Debug-level messages debugging Table 13-1 Log Level The Log function is implemented on the Log Table, Local Log, Remote Log and Backup Log pages. 13.2.1 Log Table The switch supports logs output to two directions, namely, log buffer and log file. The information in log buffer will be lost after the switch is rebooted or powered off whereas the information in log file will be kept effective even the switch is rebooted or powered off.

  • Page 164: Local Log

    select a module from the drop-down list to display the corresponding log information. Severity: Displays the severity level of the log information. You can select a severity level to display the log information whose severity level value is the same or smaller. Content: Displays the content of the log information.

  • Page 165: Remote Log

    13.2.3 Remote Log Remote log feature enables the switch to send system logs to the Log Server. Log Server is to centralize the system logs from various devices for the administrator to monitor and manage the whole network. Choose the menu Maintenance→Log→Remote Log to load the following page. Figure 13-5 Log Host The following entries are displayed on this screen: Log Host...

  • Page 166: Device Diagnostics

    Figure 13-6 Backup Log The following entry is displayed on this screen: Backup Log  Backup Log: Click the Backup Log button to save the log as a file to your computer. Note: It will take a few minutes to backup the log file. Please wait without any operation. 13.3 Device Diagnostics This switch provides Cable Test and Loopback functions for device diagnostics.

  • Page 167: Loopback

    Status: Displays the connection status of the cable connected to the port. The test results of the cable include normal, close, open, short, impedance or unknown. Length: If the connection status is normal, here displays the length range of the cable. Error: If the connection status is close, open or impedance, here displays the error length of the cable.

  • Page 168: Network Diagnostics

    13.4 Network Diagnostics This switch provides Ping test and Tracert test functions for network diagnostics. 13.4.1 Ping Ping test function, testing the connectivity between the switch and one node of the network, facilitates you to test the network connectivity and reachability of the host so as to locate the network malfunctions.
  • Page 169 Figure 13-10 Tracert The following entries are displayed on this screen: Tracert Config  Destination IP: Enter the IP address of the destination device. Max Hop: Specify the maximum number of the route hops the test data can pass through. Return to CONTENTS...

  • Page 170: Appendix A: Specifications

    Appendix A: Specifications IEEE802.3 10Base-T Ethernet IEEE802.3u 100Base-TX/100Base-FX Fast Ethernet IEEE802.3ab 1000Base-T Gigabit Ethernet Standards IEEE802.3z 1000Base-X Gigabit Ethernet IEEE802.3x Flow Control IEEE802.1p QoS IEEE802.1q VLAN Ethernet: 10Mbps HD，20Mbps FD Transmission Rate Fast Ethernet: 100Mbps HD，200Mbps FD Gigabit Ethernet: 2000Mbps FD 10Base-T: UTP/STP of Cat.

  • Page 171: Appendix B: Configuring The Pcs

    Appendix B: Configuring the PCs In this section, we’ll introduce how to install and configure the TCP/IP correctly in Windows 2000. First make sure your Ethernet Adapter is working, refer to the adapter’s manual if necessary. On the Windows taskbar, click the Start button, and then click Control Panel. Click the Network and Internet Connections icon, and then click on the Network Connections tab in the appearing window.
  • Page 172 The following TCP/IP Properties window will display and the IP Address tab is open on this window by default. Figure B-3 Select Use the following IP address. And the following items will be available. If the switch's IP address is 192.168.0.1, specify IP address as 192.168.0.x (x is from 2 to 254), and the Subnet mask as 255.255.255.0.

  • Page 173: Appendix C: Glossary

    Appendix C: Glossary Boot Protocol (BOOTP) BOOTP is used to provide bootup information for network devices, including IP address information, the address of the TFTP server that contains the devices system files, and the name of the boot file. Class of Service (CoS) CoS is supported by prioritizing packets based on the required level of service, and then placing them in the appropriate output queue.
  • Page 174 IEEE 802.1p An IEEE standard for providing quality of service (QoS) in Ethernet networks. The standard uses packet tags that define up to eight traffic classes and allows switches to transmit packets based on the tagged priority value. IEEE 802.3ac Defines frame extensions for VLAN tagging.
  • Page 175 meaning that it takes a message and converts it into a fixed string of digits, also called a message digest. Network Time Protocol (NTP) NTP provides the mechanisms to synchronize time across the network. The time servers operate in a hierarchical-master-slave configuration in order to synchronize local clocks within the subnet and to national time standards via wire or radio.
  • Page 176 Trivial File Transfer Protocol (TFTP) A TCP/IP protocol commonly used for software downloads. User Datagram Protocol (UDP) UDP provides a datagram mode for packet-switched communications. It uses IP as the underlying transport mechanism to provide access to IP-like services. UDP packets are delivered just like IP packets –...

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