Page 1 TL-SL3428 24-Port 10/100Mbps + 4-Port Gigabit JetStream L2 Managed Switch Rev: 1.1.0 1910010621...
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: 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 ........................6 Overview of the Switch ....................6 Main Features.......................6 Appearance Description ....................7 2.3.1 Front Panel ......................7 2.3.2 Rear Panel ......................8 Chapter 3 Login to the Switch.......................9 Login..........................9 Configuration ........................9...
Page 4 5.1.2 Port Mirror ......................31 5.1.3 Port Security ....................34 5.1.4 Port Isolation ....................36 LAG ..........................37 5.2.1 LAG Table ......................37 5.2.2 Static LAG ......................39 5.2.3 LACP Config ....................40 Traffic Monitor ......................42 5.3.1 Traffic Summary....................42 5.3.2 Traffic Statistics ....................43 MAC Address......................44 5.4.1 Address Table ....................45 5.4.2 Static Address ....................47 5.4.3...
Page 5 7.4.2 TC Protect......................86 Application Example for STP Function ...............87 Chapter 8 Multicast........................91 IGMP Snooping ......................93 8.1.1 Snooping Config ....................94 8.1.2 Port Config .......................95 8.1.3 VLAN Config ....................96 8.1.4 Multicast VLAN ....................98 Multicast IP .......................101 8.2.1 Multicast IP Table ...................102 8.2.2 Static Multicast IP...................102 Multicast Filter......................104 8.3.1...
Page 6 10.2.4 Standard-IP ACL ....................129 10.2.5 Extend-IP ACL ....................130 10.3 Policy Config......................131 10.3.1 Policy Summary .....................131 10.3.2 Policy Create....................132 10.3.3 Action Create ....................132 10.4 Policy Binding ......................133 10.4.1 Binding Table ....................133 10.4.2 Port Binding ....................134 10.4.3 VLAN Binding....................134 10.5 Application Example for ACL ..................135 Chapter 11 Network Security ......................138 11.1 IP-MAC Binding ......................138...
Page 7 12.3.3 Alarm Config ....................179 Chapter 13 Cluster........................182 13.1 NDP ..........................183 13.1.1 Neighbor Info ....................183 13.1.2 NDP Summary ....................184 13.1.3 NDP Config ....................186 13.2 NTDP........................187 13.2.1 Device Table ....................187 13.2.2 NTDP Summary .....................188 13.2.3 NTDP Config....................190 13.3 Cluster ........................191 13.3.1 Cluster Summary ...................191 13.3.2 Cluster Config ....................193 13.4...
Page 8: Package Contents
One console cable  Two mounting brackets and other fittings  Quick Installation Guide  Resource CD for TL-SL3428 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 9: Chapter 1 About This Guide
Chapter 1 About this Guide This User Guide contains information for setup and management of TL-SL3428 switch. 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 10 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 Manage: Configure the user name and password for users ...
Page 11 Chapter Introduction Chapter 9 QoS This module is used to configure QoS function to provide different quality service various network applications 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 12 Chapter Introduction Chapter 14 Maintenance This module is used to assemble the commonly used system tools to manage the switch. Here mainly introduces: System Monitor: Monitor the memory and CPU of the switch.  Log: View configuration parameters on the switch. ...
Page 13: Chapter 2 Introduction
Chapter 2 Introduction Thanks for choosing the TL-SL3428 24-Port 10/100Mbps + 4-Port Gigabit L2 Managed Switch! 2.1 Overview of the Switch Designed for workgroups and departments, TL-SL3428 from TP-Link provides wire-speed performance and full set of layer 2 management features. It provides a variety of service features and multiple powerful functions with high security.
Page 14: Appearance Description
2.3 Appearance Description 2.3.1 Front Panel Figure 2-1 Front Panel The following parts are located on the front panel of the Switch:  10/100Mbps Ports: Designed to connect to the device with a bandwidth of 10Mbps or 100Mbps. Each has a corresponding 10/100Mbps LED. ...
Page 15: Rear Panel
1000MFD for gigabit module. By default, the Speed and Duplex mode of SFP port is 1000MFD. 2.3.2 Rear Panel The rear panel of TL-SL3428 features a power socket and a Grounding Terminal (marked with ). Figure 2-2 Rear Panel  Grounding Terminal: TL-SL3428 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 Saving Config. You are suggested to click Saving 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 Manage, 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 and System IP pages.
Page 19 Indicates the 100Mbps port is at the speed of 10Mbps. Indicates the 1000Mbps port is not connected to a device. Indicates the 1000Mbps port is at the speed of 1000Mbps. Indicates the 1000Mbps port is at the speed of 10Mbps or 100Mbps. Indicates the SFP port is not connected to a device.
Page 20: Device Description
Figure 4-3 Bandwidth Utilization 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: System Time
Device Location: Enter the location of the switch. System Contact: Enter your contact information. 4.1.3 System Time System Time is the time displayed while the switch is running. On this page you can configure the system time and the settings here will be used for other time-based functions like ACL. You can manually set the system time, get GMT automatically if it has connected to a NTP server or synchronize with PC’s clock as the system time.
Page 22: System Ip
Get GMT: When this option is selected, you can configure the time zone and the IP Address for the NTP Server. The switch will get GMT automatically if it has connected to a NTP Server. Time Zone: Select your local time. ...
Page 23: User Manage
IP Address Mode: Select the mode to obtain IP Address for the switch. Static IP: When this option is selected, you should enter IP  Address, Subnet Mask and Default Gateway manually. DHCP: When this option is selected, the switch will obtain ...
Page 24: User Config
Figure 4-7 User Table 4.2.2 User Config On this page you can configure the access level of the user to log on to the Web management page. The switch provides two access levels: Guest and Admin. The guest only can view the settings without the right to configure the switch;...
Page 25: System Tools
Password: Type a password for users’ login. Confirm Password: Retype the password. User Table  Select: Select the desired entry to delete the corresponding user information. It is multi-optional The current user information can’t be deleted. User Name, Displays the current user ID, user name, access level and user Access Level and status.
Page 26: Config Backup
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 27: System Reboot
Figure 4-11 Firmware Upgrade 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 28: Access Security
Figure 4-13 System Reset Note: After the system is reset, the switch will be reset to the default and all the settings will be cleared. 4.4 Access Security Access Security provides different security measures for the remote login so as to enhance the configuration management security.
Page 29 Figure 4-14 Access Control The following entries are displayed on this screen: Access Control Config  Control Mode: Select the control mode for users to log on to the Web management page. IP-based: Select this option to limit the IP-range of the users for ...
Page 30: Ssl Config
Session Timeout: If you do nothing with the Web management page within the timeout time, the system will log out automatically. If you want to reconfigure, please login again. Access User Number  Select Enable/Disable the Number Control function. Number Control； Admin Number: Enter the maximum number of the users logging on to the Web management page as Admin.
Page 31: Ssh Config
Figure 4-15 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 an insecure network environment. It can encrypt all the transmission data and prevent the information in a remote management being leaked. 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.
Page 33 Key Download  Key Type: Select the type of SSH Key to download. The switch supports three types: SSH-1 RSA, SSH-2 RSA and SSH-2 DSA. Key File: Select the desired key file to download. Download: Click the Download button to download the desired key file to the switch.
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: The key type should accord with the type of the key file. The SSH key downloading can not 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 and Port Isolation 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 Figure 5-2 Mirroring Port The following entries are displayed on this screen. Mirror Group List  Group: Displays the mirror group number. Mirroring: Displays the mirroring port number. Mode: Displays the mirror mode. Mirrored Port: Displays the mirrored ports. Operation: Click Edit to configure the mirror group.
Page 40 Figure 5-3 Mirroring Port The following entries are displayed on this screen. Mirror Group  Number: Select the mirror group number you want to configure. Mirroring Port  Mirroring Port: Select the mirroring port number. Mirrored Port  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered.
Page 41: Port Security
enabled, the outgoing packets sent by the mirrored port will be copied to the mirroring port. LAG: Displays the LAG number which the port belongs to. The LAG member can not be selected as the mirrored port or mirroring port. Note: The LAG member can not be selected as the mirrored port or mirroring port.
Page 42 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 43: 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. The Port Security function is disabled when the 802.1X function is enabled. 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 44: Lag
Forward Portlist: Select the port that to be forwarded to. Port Isolation List  Port: Display the port number. Forward Portlist: Display the forwardlist. 5.2 LAG LAG (Link Aggregation Group) is to combine a number of ports together to make a single high-bandwidth data path, so as to implement the traffic load sharing among the member ports in the group and to enhance the connection reliability.
Page 45 Figure 5-6 LAG Table The following entries are displayed on this screen: Global Config  Hash Algorithm: Select the applied scope of Aggregate Arithmetic, which results in choosing a port to transfer the packets.  SRC MAC + DST MAC: When this option is selected, the Aggregate Arithmetic will apply to the source and destination MAC addresses of the packets.
Page 46: Static Lag
Figure 5-7 Detail Information 5.2.2 Static LAG On this page, you can manually configure the LAG. The LACP feature is disabled for the member ports of the manually added Static LAG. Choose the menu Switching→LAG→Static LAG to load the following page. Figure 5-8 Manually Config The following entries are displayed on this screen: LAG Config...
Page 47: Lacp Config
Description: Give a description to the LAG for identification. LAG Table  Member Port: Select the port as the LAG member. Clearing all the ports of the LAG will delete this LAG. Tips: The LAG can be deleted by clearing its all member ports. A port can only be added to a LAG.
Page 48 Figure 5-9 LACP Config The following entries are displayed on this screen: Global Config  System Priority: Specify a System Priority for the port. The System Priority and the Admin Key constitute the aggregation ID. A dynamic aggregation group will only be formed between ports having the same aggregation LACP Config ...
Page 49: Traffic Monitor
preferred one. If the two port priorities are equal; the port with smaller port number is preferred. Status: Enable/Disable the LACP feature for your selected port. LAG: Displays the LAG number which the port belongs to. 5.3 Traffic Monitor The Traffic Monitor function, monitoring the traffic of each port, is implemented on the Traffic Summary and Traffic Statistics pages.
Page 50: Traffic Statistics
Traffic Summary  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Port: Displays the port number. Packets Rx: Displays the number of packets received on the port. The error packets are not counted in. Packets Tx: Displays the number of packets transmitted on the port.
Page 51: Mac Address
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. Received: Displays the details of the packets received on the port. Sent: Displays the details of the packets transmitted on the port.
Page 52: Address Table
switch to reduce broadcast packets and enhance the efficiency of packets forwarding remarkably. The address filtering feature allows the switch to filter the undesired packets and forbid its forwarding so as to improve the network security. The types and the features of the MAC Address Table are listed as the following: Being kept after reboot Relationship between bound...
Page 53 Figure 5-12 Address Table The following entries are displayed on this screen: Search Option  MAC Address: Enter the MAC address of your desired entry. VLAN ID: Enter the VLAN ID of your desired entry. Port: Select the corresponding port number of your desired entry. Type: Select the type of your desired entry.
Page 54: Static Address
MAC Address: Displays the MAC address learned by the switch. VLAN ID: Displays the corresponding VLAN ID of the MAC address. Port: Displays the corresponding Port number of the MAC address. Type: Displays the Type of the MAC address. Aging Status: Displays the Aging status of the MAC address.
Page 55: Dynamic Address
Search Option: Select a Search Option from the pull-down list and click the Search button to find your desired entry in the Static Address Table.  MAC: Enter the MAC address of your desired entry.  VLAN ID: Enter the VLAN ID number of your desired entry. ...
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
Select: Select the entry to delete the dynamic address or to bind the MAC address to the corresponding port statically. It is multi-optional. MAC Address: Displays the dynamic MAC Address. VLAN ID: Displays the corresponding VLAN ID of the MAC address. Port: Displays the corresponding port number of the MAC address.
Page 58 The following entries are displayed on this screen: Create Filtering Address  MAC Address: Enter the MAC Address to be filtered. VLAN ID: Enter the corresponding VLAN ID of the MAC 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 Filtering Address Table.
Page 59: Chapter 6 Vlan
Chapter 6 VLAN The traditional Ethernet is a data network communication technology basing 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 60: Q Vlan
VLANs. The switch can analyze the received untagged packets on the port and match the packets with the Protocol VLAN and 802.1Q VLAN in turn. 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.
Page 61 （2） TRUNK: The TRUNK port can be added in multiple VLANs, and the egress rule of the port is TAG. The TRUNK port is generally used to connect the cascaded network devices for it 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.
Page 62: Vlan Config
IEEE 802.1Q VLAN function is implemented on the VLAN Config and Port Config pages. 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 63 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 64: 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 LAG: Displays the LAG to which the port belongs.
Page 65: Configuration Procedure
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 66: Protocol Vlan
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. Meanwhile, specify its member ports. Modify/View VLAN. Optional. On the VLAN→802.1Q VLAN→VLAN Config page, click the Edit/Detail button to modify/view the information of the corresponding VLAN.
Page 67: Protocol Vlan
6.2.1 Protocol VLAN On this page, you can create Protocol VLAN and view the information of the current defined Protocol VLANs. Choose the menu VLAN→Protocol VLAN→Protocol VLAN to load the following page. Figure 6-7 Create Protocol VLAN The following entries are displayed on this screen: Create Protocol VLAN ...
Page 68: Port Enable
Figure 6-8 Create and View Protocol Template The following entries are displayed on this screen: Create Protocol Template  Protocol Name: Give a name for the Protocol Template. Ether Type: Enter the Ethernet protocol type field in the protocol template. Protocol Template Table ...
Page 69: Application Example For 802.1Q Vlan
Figure 6-9 Enable Protocol VLAN for Port Port Enable: Select your desired port for Protocol VLAN feature. All the ports are disabled by default. Configuration Procedure: Step Operation Description Set the link type for port. Required. On the VLAN→802.1Q VLAN→Port Config page, set the link type for the port basing on its connected device.
Page 70 PC B and Server B is in the same VLAN;  PCs in the two VLANs cannot communicate with each other.  Network Diagram  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...
Page 71: Application Example For Protocol Vlan
6.4 Application Example for Protocol VLAN Network Requirements  Department A is connected to the company LAN via Port12 of Switch A;  Department A has IP host and AppleTalk host;  IP host, in VLAN10, is served by IP server while AppleTalk host is served by AppleTalk server; ...
Page 72: Gvrp
VLAN with its VLANID as 10, owning Port 3 and Port 4, and configure the egress rule of Port 3 as Untag. Create VLAN20 Required. On VLAN→802.1Q VLAN→VLAN Config page, create a VLAN with its VLANID as 20, owning Port 3 and Port 5, and configure the egress rule of Port 3 as Untag.
Page 73  Hold Timer: When a GARP entity receives a piece of registration information, it does not send out a Join message immediately. Instead, to save the bandwidth resources, it starts the Hold timer, puts all registration information it receives before the timer times out into one Join message and sends out the message after the timer times out.
Page 74 Figure 6-10 GVRP Config Note: If the GVRP feature is enabled for a member port of LAG, please ensure all the member ports of this LAG are set to be in the same status and registration mode. The following entries are displayed on this screen: Global Config ...
Page 75  Fixed: In this mode, a port cannot register/deregister a VLAN dynamically. It only propagates static VLAN information.  Forbidden: In this mode, a port cannot register/deregister VLANs. It only propagates VLAN 1 information. LeaveAll Timer: Once the LeaveAll Timer is set, the port with GVRP enabled can send a LeaveAll message after the timer times out, so that other GARP ports can re-register all the attribute information.
Page 76: 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 77 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 78 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 79 Tips： In a STP with stable topology, only the root port and designated port can forward data, and the other ports are blocked. The blocked ports only can receive BPDUs. RSTP (Rapid Spanning Tree Protocol), evolved from the 802.1D STP standard, enable Ethernet ports to transit their states rapidly.
Page 80 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 tress is called an instance. As well as STP, MSTP uses BPDUs to generate spanning tree. The only difference is that the BPDU for MSTP carry the MSTP configuration information on the switches.
Page 81: 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 82 Figure 7-4 STP Config 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. ...
Page 83: Stp Summary
that occur in a specific region before the BPDU is discarded. The default value is 20 hops. Note: The forward delay parameter and the network diameter are correlated. A too small forward delay parameter may result in temporary loops. A too large forward delay may cause a network unable to resume the normal state in time.
Page 84: Port Config
Figure 7-5 STP Summary 7.2 Port Config On this page you can configure the parameters of the ports for CIST Choose the menu Spanning Tree→Port Config to load the following page.
Page 85 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 86: Mstp Instance
this bridge to the Root Bridge and forwards packets to the root.  Designated Port: Indicates the port that forwards packets to a downstream network segment or switch.  Master Port: Indicates the port that connects a MST region to the common root.
Page 87: 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 88: 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 89 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.
Page 90: 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 91 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 92 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 93: 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 94: Application Example For Stp Function
On Spanning Tree→STP Config→Port Config page, enable MSTP function for the port. Configure the region name and On Spanning Tree→MSTP Instance→Region Config the revision of MST region page, configure the region as TP-LINK and keep the default revision setting. Configure VLAN-to-Instance Spanning Tree→MSTP...
Page 95 On Spanning Tree→STP Config→Port Config page, enable MSTP function for the port. Configure the region name and On Spanning Tree→MSTP Instance→Region Config the revision of MST region page, configure the region as TP-LINK and keep the default revision setting. Configure VLAN-to-Instance Spanning Tree→MSTP...
Page 96 On Spanning Tree→STP Config→Port Config page, enable MSTP function for the port. Configure the region name and On Spanning Tree→MSTP Instance→Region Config the revision of MST region page, configure the region as TP-LINK and keep the default revision setting. Configure VLAN-to-Instance Spanning Tree→MSTP...
Page 97 Suggestion for Configuration  Enable TC Protect function for all the ports of switches.  Enable Root Protect function for all the ports of root bridges.  Enable Loop Protect function for the non-edge ports.  Enable BPDU Protect function or BPDU Filter function for the edge ports which are connected to the PC and server.
Page 98: 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 99 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 100: 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 101: Snooping Config
The host, running IGMPv1, does not send IGMP leave message when leaving a multicast group, as a result, the switch can not 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 102: 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 103: 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 104 Choose the menu Multicast→IGMP Snooping→VLAN Config to load the following page. 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.
Page 105: Multicast Vlan
Select: Select the desired VLAN ID for configuration. It is multi-optional. VLAN ID: Displays the VLAN ID. Router Port Time: Displays the router port time of the VLAN. Member Port Time: Displays the member port time of the VLAN. Leave Time: Displays the leave time of the VLAN.
Page 106 Figure 8-7 Multicast VLAN The following entries are displayed on this screen: 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 107 After a multicast VLAN is created, all the IGMP packets will be processed only within the multicast VLAN. 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. Create a multicast VLAN Required.
Page 108: Multicast Ip
Configuration Procedure  Step Operation Description Create VLANs Create three VLANs with the VLAN ID 3, 4 and 5 respectively, and specify the description of VLAN3 as Multicast VLAN on VLAN→802.1Q VLAN page. 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.
Page 109: Multicast Ip Table
8.2.1 Multicast IP Table On this page you can view the multicast IP table on the switch. Choose the menu Multicast→Multicast IP→Multicast IP Table to load the following page. Figure 8-8 Multicast IP Table The following entries are displayed on this screen: Search Option ...
Page 110 Choose the menu Multicast→Multicast IP→Static Multicast IP to load the following page. Figure 8-9 Static Multicast IP Table The following entries are displayed on this screen: Create Static Multicast  Multicast IP: Enter static multicast IP address. VLAN ID: Enter the VLAN ID of the multicast IP. Forward Port: Enter the forward port of the multicast group.
Page 111: Multicast Filter
8.3 Multicast Filter When IGMP Snooping is enabled, you can specified the multicast IP-range the ports can join so as to restrict users ordering multicast programs via configuring multicast filter rules. When applying for a multicast group, the host will send IGMP report message. After receiving the report message, the switch will firstly check the multicast filter rules configured for the receiving port.
Page 112: Port Filter
Start Multicast IP: Displays start multicast IP of the IP-range. End Multicast IP: Displays end multicast IP of the IP-range. 8.3.2 Port Filter On this page you can configure the multicast filter rules for port. Take the configuration on this page and the configuration on IP-Range page together to function to implement multicast filter function on the switch.
Page 113: Packet Statistics
Max Groups: Specify the maximum number of multicast groups to prevent some ports taking up too much bandwidth. LAG: Displays the LAG number which the port belongs to. Note: Multicast Filter feature can only have effect on the VLAN with IGMP Snooping enabled. Multicast Filter feature has no effect on static multicast IP.
Page 114 Auto Refresh  Auto Refresh: Select Enable/Disable auto refresh feature. Refresh Period: Enter the time from 3 to 300 in seconds to specify the auto refresh period. IGMP Statistics  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered.
Page 115: 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 116 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 117 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 118: 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 119: Schedule Mode
Note: To complete QoS function configuration, you have to go to the Schedule Mode page to select a schedule mode after the configuration is finished on this page. Configuration Procedure: Step Operation Description Log on to the Port Priority page Select the desired ports for Select the desired ports.
Page 120: P Priority
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 121: Dscp Priority
Priority Level: Indicates the priority level the packets with tag are mapped to. The priority levels are labeled as TC0, TC1, TC2 and TC3. Note: To complete QoS function configuration, you have to go to the Schedule Mode page to select a schedule mode after the configuration is finished on this page.
Page 122 Figure 9-9 DSCP Priority 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 Level: Indicates the priority level the packets with tag are mapped to.
Page 123: Bandwidth Control
Map the DSCP priority to the Required. Select DSCP priority and the corresponding priority level priority level. Select a schedule mode Required. Log on to the Schedule Mode page to select a schedule mode. 9.2 Bandwidth Control Bandwidth function, allowing you to control the traffic rate and broadcast flow on each port to ensure network in working order, can be implemented on Rate Limit and Storm Control pages.
Page 124: Storm Control
Select: Select the desired port for Rate configuration. It is multi-optional. Port: Displays the port number of the Switch. Ingress Rate(Kbps): Configure the bandwidth for receiving packets on the port. You can select a rate from the dropdown list or select "Manual" to set Ingress rate, the system will automatically select integral multiple of 64Kbps that closest to the rate you entered as the real Ingress rate.
Page 125: Voice Vlan
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 126 configuration for voice data, ensuring the transmission priority of voice data stream and voice quality. OUI Address (Organizationally unique identifier address)  The switch can determine whether a received packet is a voice packet by checking its source MAC address. If the source MAC address of a packet complies with the OUI addresses configured by the system, the packet is determined as voice packet and transmitted in voice VLAN.
Page 127: Global Config
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 voice VLAN should be TAG.
Page 128: Port Config
The following entries are displayed on this screen: Global Config  Voice VLAN: Select Enable/Disable Voice VLAN function. VLAN ID: Enter the VLAN ID of the voice VLAN. Aging Time: Specifies the living time of the member port in auto mode after the OUI address is aging out.
Page 129: Oui 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 voice VLAN configuration. It is multi-optional.
Page 130 The following entries are displayed on this screen: Create OUI  OUI: Enter the OUI address of the voice device. Mask: Enter the OUI address mask of the voice device. Description: Give a description to the OUI for identification. OUI Table ...
Page 131: Chapter 10 Acl
Chapter 10 ACL ACL (Access Control List) is used to filter packets by configuring match rules and process policies of packets in order to control the access of the illegal users to the network. Besides, ACL functions to control traffic flows and save network resources. It provides a flexible and secured access control policy and facilitates you to control the network security.
Page 132: Time-Range Create
10.1.2 Time-Range Create On this page you can create time-ranges. Choose the menu ACL→Time-Range→Time-Range Create to load the following page. Figure 10-2 Time-Range Create Note: To successfully configure time-ranges, please firstly specify time-slices and then time-ranges. The following entries are displayed on this screen: Create Time-Range ...
Page 133: Holiday Config
End Time: Displays the end time of the time-slice. Delete: Click the Delete button to delete the corresponding time-slice. 10.1.3 Holiday Config Holiday mode is applied as a different secured access control policy from the week mode. On this page you can define holidays according to your work arrangement. Choose the menu ACL→Time-Range→Holiday Config to load the following page.
Page 134: Acl Summary
The ACL Config function can be implemented on ACL Summary, ACL Create, MAC ACL, Standard-IP ACL and Extend-IP ACL pages. 10.2.1 ACL Summary On this page, you can view the current ACLs configured in the switch. Choose the menu ACL→ACL Config→ACL Summary to load the following page. Figure 10-4 ACL Summary The following entries are displayed on this screen: Search Option...
Page 135: Mac Acl
The following entries are displayed on this screen: Create ACL  ACL ID: Enter ACL ID of the ACL you want to create. Rule Order: User Config order is set to be match order in this ACL. 10.2.3 MAC ACL MAC ACLs analyze and process packets based on a series of match conditions, which can be the source MAC addresses, destination MAC addresses, VLAN ID, and EtherType carried in the packets.
Page 136: Standard-Ip Acl
EtherType: Enter EtherType contained in the rule. User Priority: Select the user priority contained in the rule for the tagged packets to match. Time-Range: Select the time-range for the rule to take effect. 10.2.4 Standard-IP ACL Standard-IP ACLs analyze and process data packets based on a series of match conditions, which can be the source IP addresses and destination IP addresses carried in the packets.
Page 137: Extend-Ip Acl
10.2.5 Extend-IP ACL Extend-IP ACLs analyze and process data packets based on a series of match conditions, which can be the source IP addresses, destination IP addresses, IP protocol and other information of this sort carried in the packets. Choose the menu ACL→ACL Config→Extend-IP ACL to load the following page. Figure 10-8 Create Extend-IP Rule The following entries are displayed on this screen: Create Extend-IP ACL...
Page 138: Policy Config
D-Port: Configure TCP/IP destination port contained in the rule when TCP/UDP is selected from the pull-down list of IP Protocol. DSCP: Enter the DSCP information contained in the rule. Time-Range: Select the time-range for the rule to take effect. 10.3 Policy Config A Policy is used to control the data packets those match the corresponding ACL rules by configuring ACLs and actions together for effect.
Page 139: Policy Create
Operation: Click the Edit button to modify the action. 10.3.2 Policy Create On this page you can create the policy. Choose the menu ACL→Policy Config→Policy Create to load the following page. Figure 10-10 Create Policy The following entr ies are displayed on this screen: Create Policy ...
Page 140: Policy Binding
Select ACL: Select the ACL for configuration in the policy. S-Mirror: Select S-Mir ror to mirror the data packets in the policy to the specific port. S-Condition: Se ct S-Condition to limit the transmission rate of the data packets in the policy.
Page 141: Port Binding
Index: Displays the index of the binding policy. Policy Name: Displays the name of the binding policy. Interface: Displays the port number or VL AN ID bound to the policy. Direction: Displays the binding direction. 10.4.2 Port Binding On this page you can bind a policy to a port. Choose the menu ACL→Policy Binding→Port Binding to load the following page.
Page 142: Application Example For Acl
Figure 10-14 Bind the policy to the VLAN The following entries are displayed on this screen: VLAN-Bind Config  Policy Name: Select the name of the policy you want to bind. VLAN ID: Enter the ID of the VLAN you want to bind. VLAN-Bind Table ...
Page 143 3. The staff of the marketing department can access to the Internet all day but can not visit the forum during the working time. 4. The R&D department and marketing department can not communicate with each other. Network Diagram  Configuration Procedure ...
Page 144 Configure On ACL→ACL Config→ACL Create page, create ACL 100. requirement On ACL→ACL Config→Standard-IP ACL page, select ACL 100, and 4 create Rule 1, configure operation as Deny, configure S-IP as 172.31.70.1 and mask as 255.255.255.0, configure D-IP as 172.31.50.1 and mask as 255.255.255.0, configure the time-range as No Limit.
Page 145: Chapter 11 Network Security
Chapter 11 Network Security Network Security module is to provide the multiple protection measures for the network security, including five submenus: IP-MAC Binding, ARP Inspection, DoS Defend and 802.1X. Please configure the functions appropriate to your need. 11.1 IP-MAC Binding The IP-MAC Binding function allows you to bind the IP address, MAC address, VLAN ID and the connected Port number of the Host together.
Page 146: Manual Binding
The following entries are displayed on this screen: Search Option  Source: Select a Source from the pull-down list and click the Search button to view your desired entry in the Binding Table.  All: All the bound entries will be displayed. ...
Page 147 Figure 11-2 Manual Binding The following entries are displayed on this screen: Manual Binding Option  Host Name: Enter the Host Name. IP Address: Enter the IP Address of the Host. MAC Address: Enter the MAC Address of the Host. VLAN ID: Enter the VLAN ID.
Page 148: Arp Scanning
11.1.3 ARP Scanning ARP (Address Resolution Protocol) is used to analyze and map IP addresses to the corresponding MAC addresses so that packets can be delivered to their destinations correctly. IP address is the address of the Host on Network layer. MAC address, the address of the Host on Data link layer, is necessary for the packet to reach the very device.
Page 149: Dhcp Snooping
Figure 11-4 ARP Scanning The following entries are displayed on this screen: Scanning Option  Start IP Address: Specify the Start IP Address. End IP Address: Specify the End IP Address. VLAN ID: Enter the VLAN ID. If blank, the switch will send the untagged packets for scanning.
Page 150 network configuration protocol optimized and developed basing on the BOOTP, functions to solve the above mentioned problems. DHCP Working Principle  DHCP works via the “Client/Server” communication mode. The Client applies to the Server for configuration. The Server assigns the configuration information, such as the IP address, to the Client, so as to reach a dynamic employ of the network source.
Page 151 Figure 11-6 Interaction between a DHCP client and a DHCP server （1） DHCP-DISCOVER Stage: The Client broadcasts the DHCP-DISCOVER packet to find the DHCP Server. （2） DHCP-OFFER Stage: Upon receiving the DHCP-DISCOVER packet, the DHCP Server selects an IP address from the IP pool according to the assigning priority of the IP addresses and replies to the Client with DHCP-OFFER packet carrying the IP address and other information.
Page 152 Option 82 can contain 255 sub-options at most. If Option 82 is defined, at least a sub-option should be defined. This Switch supports two sub-options: Circuit ID and Remote ID. Since there is no universal standard about the content of Option 82, different manufacturers define the sub-options of Option 82 to their need.
Page 153 Choose the menu Network Security→IP-MAC Binding→Binding Table to load the following page. Figure 11-8 DHCP Snooping Note: If you want to enable the DHCP Snooping feature for the member port of LAG, please ensure the parameters of all the member ports are the same. The following entries are displayed on this screen: DHCP Snooping Config ...
Page 154 DHCP Snooping: Enable/Disable the DHCP Snooping function globally. Global Flow Control: Select the value to specify the maximum amount of DHCP messages that can be forwarded by the switch per second. The excessive massages will be discarded. Decline Threshold: Select the value to specify the minimum transmission rate of the Decline packets to trigger the Decline protection for the specific port.
Page 155: Arp Inspection
11.2 ARP Inspection According to the ARP Implementation Procedure stated in 11.1.3 ARP Scanning, it can be found that ARP protocol can facilitate the Hosts in the same network segment to communicate with one another or access to external network via Gateway. However, since ARP protocol is implemented with the premise that all the Hosts and Gateways are trusted, there are high security risks during ARP Implementation Procedure in the actual complex network.
Page 156 Figure 11-10 ARP Attack – Cheating Gateway As the above figure shown, the attacker sends the fake ARP packets of Host A to the Gateway, and then the Gateway will automatically update its ARP table after receiving the ARP packets. When the Gateway tries to communicate with Host A in LAN, it will encapsulate this false destination MAC address for packets, which results in a breakdown of the normal communication.
Page 157 Figure 11-11 ARP Attack – Cheating Terminal Hosts As the above figure shown, the attacker sends the fake ARP packets of Host A to Host B, and then Host B will automatically update its ARP table after receiving the ARP packets. When Host B tries to communicate with Host A, it will encapsulate this false destination MAC address for packets, which results in a breakdown of the normal communication.
Page 158 Figure 11-12 Man-In-The-Middle Attack Suppose there are three Hosts in LAN connected with one another through a switch. Host A: IP address is 192.168.0.101; MAC address is 00-00-00-11-11-11. Host B: IP address is 192.168.0.102; MAC address is 00-00-00-22-22-22. Attacker: IP address is 192.168.0.103; MAC address is 00-00-00-33-33-33. First, the attacker sends the false ARP response packets.
Page 159: Arp Detect
The IP-MAC Binding function allows the switch to bind the IP address, MAC address, VLAN ID and the connected Port number of the Host together when the Host connects to the switch. Basing on the predefined IP-MAC Binding entries, the ARP Inspection functions to detect the ARP packets and filter the illegal ARP packet so as to prevent the network from ARP attacks.
Page 160: Arp Defend
Configuration Procedure: Step Operation Description Bind the IP address, MAC Required. On the IP-MAC Binding page, bind the IP address, VLAN ID and the address, MAC address, VLAN ID and the connected Port connected Port number of number of the Host together via Manual Binding, ARP the Host together.
Page 161: Arp Statistics
The following entries are displayed on this screen: ARP Defend  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select your desired port for configuration. It is multi-optional. Port: Displays the port number.
Page 162: Dos Defend
Figure 11-15 ARP Statistics The following entries are displayed on this screen: Auto Refresh  Auto Refresh: Enable/Disable the Auto Refresh feature. Refresh Interval: Specify the refresh interval to display the ARP Statistics. Illegal ARP Packet  Port: Displays the port number. Trusted Port: Indicates the port is an ARP Trusted Port or not.
Page 163 DoS Attack Type Description Scan SYNFIN The attacker sends the packet with its SYN field and the FIN field set to 1. The SYN field is used to request initial connection whereas the FIN field is used to request disconnection. Therefore, the packet of this type is illegal. The switch can defend this type of illegal packet.
Page 164 DoS Protection: Allows you to Enable/Disable DoS Defend function. Defend Table  Select: Select the entry to enable the corresponding Defend Type. Defend Type: Displays the Defend Type name. Tips: You are suggested to take the following further steps to ensure the network security. It’s recommended to inspect and repair the system vulnerability regularly.
Page 165 （2） Authenticator System: The authenticator system is usually an 802.1X-supported network device, such as this TP-LINK switch. It provides the physical or logical port for the supplicant system to access the LAN and authenticates the supplicant system. （3） Authentication Server System: The authentication server system is an entity that provides authentication service to the authenticator system.
Page 166 Supplicant System Switch Authentication Server EAPOL Start EAP-Request/Identity EAP-Response/Identity RADIUS-Access-Request RADIUS-Access-Challenge EAP-Request EAP-Response RADIUS-Access-Request RADIUS-Access-Accept EAP-Success Figure 11-18 EAP-MD5 Authentication Procedure A supplicant system launches an 802.1X client program via its registered user name and password to initiate an access request through the sending of an EAPOL-Start packet to the switch.
Page 167 In this mode, packet transmission is terminated at authenticator systems and the EAP packets are mapped into RADIUS packets. Authentication and accounting are accomplished through RADIUS protocol. In this mode, PAP or CHAP is employed between the switch and the RADIUS server. This switch supports the PAP terminating mode.
Page 168: Global Config
authenticated. But they need to be authenticated before accessing external resources. After passing the authentication, the ports will be removed from the Guest VLAN and be allowed to access the other resources. With the Guest VLAN function enabled, users can access the Guest VLAN to install 802.1X client program or upgrade their 802.1x clients without being authenticated.
Page 169: Port Config
exchange information between the switch and the client. protocol packets with 　 authentication data can be encapsulated in the advanced protocol (such as RADIUS) packets to be transmitted to the authentication server.  PAP: IEEE 802.1X authentication system uses extensible authentication protocol (EAP)
Page 170 Figure 11-21 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 your desired port for configuration. It is multi-optional. Port: Displays the port number.
Page 171: Radius Server
Authorized: Displays the authentication status of the port. LAG: Displays the LAG to which the port belongs to. 11.4.3 Radius Server RADIUS (Remote Authentication Dial-In User Service) server provides the authentication service for the switch via the stored client information, such as the user name, password, etc, with the purpose to control the authentication and accounting status of the clients.
Page 172 Note: 1. The 802.1X function takes effect only when it is enabled globally on the switch and for the port. 2. The 802.1X function can not be enabled for LAG member ports. That is, the port with 802.1X function enabled can not be added to the LAG. 3.
Page 173: Chapter 12 Snmp
Chapter 12 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 174 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 175: Snmp Config
The User is 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 176: Snmp View
Note: The amount of Engine ID characters must be even. 12.1.2 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 177: Snmp Group
12.1.3 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 12-5 SNMP Group The following entries are displayed on this screen: Group Config...
Page 178: Snmp User
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. The management station can receive messages of the assigned SNMP view notification...
Page 179 Figure 12-6 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 local SNMP engine.
Page 180: 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 181  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 and changes can be made to the corresponding View. MIB View: Select the MIB View for the community to access.
Page 182: Notification
Create SNMP View. Required. On the SNMP→SNMP Config→SNMP View page, create SNMP View of the management agent. The default View Name is viewDefault and the default OID is 1. Create SNMP Required alternatively. Community Create SNMP Community directly.  directly. SNMP→SNMP Config→SNMP Community page, create SNMP Community...
Page 183 Figure 12-8 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 184: Rmon
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 185: History Control
The RMON Groups can be configured on the History Control, Event Config and Alarm Config pages. 12.3.1 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 12-9 History Control The following entries are displayed on this screen: History Control Table...
Page 186: Alarm Config
Figure 12-10 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 187 Figure 12-11 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 form the pull-sown list. Port: Select the port on which the Alarm entry acts.
Page 188 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 189: Chapter 13 Cluster
Chapter 13 Cluster With the development of network technology, the network scale is getting larger and more network devices are required, which may result in a more complicated network management system. As a large number of devices need to be assigned different network addresses and every management device needs to be respectively configured to meet the application requirements, manpower are needed.
Page 190: Ndp
The commander switch discovers and determines candidate switches by collecting related  information. After being added to the cluster, the candidate switch becomes to be the member switch,  After being removed from the cluster, the member switch becomes to be the candidate switch. ...
Page 191: Ndp Summary
The following entries are displayed on this screen: Neighbor  Search Option: Select the information the desired entry should contain and then click the Search button to display the desired entry in the following Neighbor Information table. Neighbor Info  Native Port: Displays the port number of the switch.
Page 192 Figure 13-3 NDP Summary The following entries are displayed on this screen: Global Config  NDP: Displays the global NDP status (enabled or disabled) for the switch. Aging Time: Displays the period for the neighbor switch to keep the NDP packets from this switch.
Page 193: Ndp Config
Click the Detail button to view the complete information collected Detail： for the port. 13.1.3 NDP Config On this page you can configure the NDP function for the switch. Choose the menu Cluster→NDP→NDP Config to load the following page. Figure 13-4 NDP Config The following entries are displayed on this screen: Global Config ...
Page 194: Ntdp
Port: Displays the port number of the switch. NDP: Displays NDP status of the current port. Enable: Click the Enable button to enable NDP for the port you select. Disable: Click the Disable button to disable NDP for the port you select. Note: NDP function is effective only when NDP function is enabled globally and for the port.
Page 195: Ntdp Summary
Device Table  Device Type: Displays the device description collected through NTDP. Device MAC: Displays the MAC address of this device. Cluster Name: Displays the cluster name of this device. Role: Displays the role this device plays in the cluster. ...
Page 196 Figure 13-7 NTDP Summary The following entries are displayed on this screen: Global Config  NTDP: Displays the NTDP status (enabled or disabled) of the switch globally. NTDP Interval Time: Displays the interval to collect topology information. NTDP Hops: Displays the hop count the switch topology collects. NTDP Hop Delay: Displays the time between the switch receiving NTDP request packets and the switch forwarding NTDP request packets for the...
Page 197: Ntdp Config
Port: Displays the port number of the switch. NTDP: Displays NTDP status (enabled or disabled) of the current port. 13.2.3 NTDP Config On this page you can configure NTDP globally. Choose the menu Cluster→NTDP→NTDP Config to load the following page. Figure 13-8 NTDP Config The following entries are displayed on this screen: Global Config...
Page 198: Cluster
NTDP Hop Delay: Enter the time between the switch receiving NTDP request packets and the switch forwarding NTDP request packets for the first time. The default is 200 milliseconds. NTDP Port Delay: Enter the time between the port forwarding NTDP request packets and its adjacent port forwarding NTDP request packets over.
Page 199 Cluster: Displays the cluster status (enabled or disabled) of the switch. Cluster Role: Displays the role the switch plays in the cluster. For a member switch, the following page is displayed:  Figure 13-10 Cluster Summary for Member Switch The following entries are displayed on this screen: Global Config ...
Page 200: Cluster Config
13.3.2 Cluster Config On this page you can configure the status of the cluster the switch belongs to. Choose the menu Cluster→Cluster→Cluster Config to load the following page. For a candidate switch, the following page is displayed.  Figure 13-12 Cluster Configuration for Candidate Switch The following entries are displayed on this screen: Current Role ...
Page 201: Application Example For Cluster Function
 Three switches form cluster, one commander switch(Here take TP-LINK TL-SL5428E as an example) and two member switches(Here take TP-LINK TL-SL3428 as an example). The administrator manages all the switches in the cluster via the commander switch. Port 1 of the commander switch is connecting to the external network, port 2 is connecting to ...
Page 202 Figure 13-15 Network diagram Configuration Procedure  Configure the member switch  Step Operation Description Enable NDP function on the On Cluster→NDP→NDP Config page, enable NDP switch and for port 1 function. Enable NTDP function on the On Cluster→NTDP→NTDP Config page, enable switch and for port 1 NTDP function.
Page 203 Configure the member switch On Cluster→Cluster→Member Config page, select the member switch and click the Manage button to log on to its Web management page. Cluster→Cluster→Cluster Topology page, double-click the switch icon to view its detailed information; click the switch icon and click the Manage button to log on to the Web management page.
Page 204: Chapter 14 Maintenance
Chapter 14 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 205: Memory Monitor
Figure 14-1 CPU Monitor Click the Monitor button to enable the switch to monitor and display its CPU utilization rate every four seconds. 14.1.2 Memory Monitor Choose the menu Maintenance→System Monitor→Memory Monitor to load the following page.
Page 206: Log
Figure 14-2 Memory Monitor Click the Monitor button to enable the switch to monitor and display its Memory utilization rate every four seconds. 14.2 Log The Log system of switch can record, classify and manage the system information effectively, providing powerful support for network administrator to monitor network operation and diagnose malfunction.
Page 207: Log Table
The Log function is implemented on the Log Table, Local Log, Remote Log and Backup Log pages. 14.2.1 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 208: Local Log
14.2.2 Local Log Local Log is the log information saved in switch. By default, all system logs are saved in log buffer and the logs with severities from level_0 to level_4 are saved in log file meanwhile. On this page, you can set the output channel for logs.
Page 209: Backup Log
Figure 14-5 Log Host The following entries are displayed on this screen: Log Host  Index: Displays the index of the log host. The switch supports 4 log hosts. Host IP: Configure the IP for the log host. UDP Port: Displays the UDP port used for receiving/sending log information.
Page 210: Device Diagnose
Figure 14-6 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. 14.3 Device Diagnose This switch provides Cable Test and Loopback functions for device diagnose.
Page 211: Loopback
Pair: Displays the Pair number. 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.
Page 212: Network Diagnose
Loopback Port: Select the desired port for loopback test. Test: Click the Test button to start the loopback test for the port. 14.4 Network Diagnose This switch provides Ping test and Tracert test functions for network diagnose. 14.4.1 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 213: Tracert
14.4.2 Tracert Tracert test function is used to test the connectivity of the gateways during its journey from the source to destination of the test data. When malfunctions occur to the network, you can locate trouble spot of the network with this tracert test. Choose the menu Maintenance→Network Diagnose→Tracert to load the following page.
Page 214: Chapter 15 System Maintenance Via Ftp
Chapter 15 System Maintenance via FTP The firmware can be downloaded to the switch via FTP function. FTP (File Transfer Protocol), a protocol in the application layer, is mainly used to transfer files between the remote server and the local PCs. It is a common protocol used in the IP network for files transfer. If there is something wrong with the firmware of the switch and the switch can not be launched, the firmware can be downloaded to the switch again via FTP function.
Page 215 Figure 15-2 Open Hyper Terminal 2） The Connection Description Window will prompt shown as Figure 15-3. Enter a name into the Name field and click OK. Figure 15-3 Connection Description 3） Select the port to connect in Figure 15-4 and click OK.
Page 216 Figure 15-4 Select the port to connect 4） Configure the port selected in the step above shown as the following Figure 15-5. Configure Bits per second as 38400, Data bits as 8, Parity as None, Stop bits as 1, Flow control as None, and then click OK. Figure 15-5 Port Settings 3.
Page 217 N to quit upgrade shown as the following figure. The # icon indicates it is upgrading. After upgrading, the [TP-LINK] command will display. 7） Please enter start command to start the switch shown as the following figure. Enter the user name and password (the default user name and password are both admin) to login to the CLI command window and you can manage the switch via CLI command.
Page 218 When you forget the login user name and password, you can enter reset command after entering into bootUtil menu to reset the system. The system will be restored to the factory default settings, and the default login user name and password are both admin. Return to CONTENTS...
Page 219: 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 IEEE802.3z 1000Base-X Gigabit Ethernet Standards IEEE802.3x Flow Control IEEE802.1p Priority IEEE802.1q VLAN Bridge IEEE802.1X Port-based Access Authentication Ethernet: 10Mbps HD，20Mbps FD Transmission Rate Fast Ethernet: 100Mbps HD，200Mbps FD Gigabit Ethernet: 2000Mbps FD 10Base-T: UTP/STP of Cat.
Page 220: 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. Configure TCP/IP component 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 221 Figure B-2 The following TCP/IP Properties window will display and the IP Address tab is open on this window by default.
Page 222 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. Now: Click OK to save your settings. Return to CONTENTS...
Page 223: Appendix C: 802.1X Client Software
In 802.1X mechanism, the supplicant Client should be equipped with the corresponding client software complied with 802.1X protocol standard for 802.1X authentication. When the switch TL-SL3428 works as the authenticator system, please take the following instructions to install the TpSupplicant provided on the attached CD for the supplicant Client.
Page 224 Figure C-3 Welcome to the InstallShield Wizard To continue, choose the destination location for the installation files and click Next on the following screen. Figure C-4 Choose Destination Location By default, the installation files are saved on the Program Files folder of system disk. Click the Change button to modify the destination location proper to your need.
Page 225 Figure C-5 Install the Program The InstallShield Wizard is installing TpSupplicant-V2.0 shown as the following screen. Please wait. Figure C-6 Setup Status On the following screen, click Finish to complete the installation.
Page 226 Uninstall Software If you want to remove the TpSupplicant, please take the following steps: On the Windows taskbar, click the Start button, point to All ProgramsTP-LINK TpSupplicant-V2.0, and then click Uninstall TP-LINK 802.1X, shown as the following figure. Then the following screen will appear. If you want to stop the remove process, click Cancel.
Page 227 On the continued screen, click Yes to remove the application from your PC. Figure C-9 Uninstall the Application Click Finish to complete. Figure C-10 Uninstall Complete Configuration After completing installation, double click the icon to run the TP-LINK 802.1X Client Software. The following screen will appear.
Page 228 Figure C-11 TP-LINK 802.1X Client Enter the Name and the Password specified in the Authentication Server. The length of Name and Password should be less than 15 characters. Click the Properties button on Figure C-11 to load the following screen for configuring the connection properties.
Page 229 Auto reconnect after timeout: Select this option to allow the Client to automatically start the connection again when it does not receive the handshake reply packets from the switch within a period. To continue, click Connect button after entering the Name and Password on Figure C-11 Then the following screen will appear to prompt that the Radius server is being searched.
Page 230 Q1: Why does this error dialog box pop up when starting up the TP-LINK 802.1X Client Software? A1: It’s because the supported DLL file is missing. You are suggested to go to http://www.winpcap.org to download WinPcap 4.0.2 or the higher version for installation, and run the client software again.
Page 231: Appendix D: Glossary
Appendix D: Glossary Access Control List (ACL) ACLs can limit network traffic and restrict access to certain users or devices by checking each packet for certain IP or MAC (i.e., Layer 2) information. 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.
Page 232 Generic Multicast Registration Protocol (GMRP) GMRP allows network devices to register end stations with multicast groups. GMRP requires that any participating network devices or end stations comply with the IEEE 802.1p standard. Group Attribute Registration Protocol (GARP) See Generic Attribute Registration Protocol. IEEE 802.1D Specifies a general method for the operation of MAC bridges, including the Spanning Tree Protocol.
Page 233 Layer 2 Data Link layer in the ISO 7-Layer Data Communications Protocol. This is related directly to the hardware interface for network devices and passes on traffic based on MAC addresses. Link Aggregation See Port Trunk. Link Aggregation Control Protocol (LACP) Allows ports to automatically negotiate a trunked link with LACP-configured ports on another device.
Page 234 Secure Shell (SSH) A secure replacement for remote access functions, including Telnet. SSH can authenticate users with a cryptographic key, and encrypt data connections between management clients and the switch. Simple Network Management Protocol (SNMP) The application protocol in the Internet suite of protocols which offers network management services.

TP-Link JetStream TL-SL3428 User Manual

Chapter 1 About this Guide

Chapter 2 Introduction

Chapter 3 Login to the Switch

Chapter 4 System

Chapter 5 Switching

Chapter 6 VLAN

Chapter 7 Spanning Tree

Chapter 8 Multicast

Chapter 9 Qos

Chapter 10 ACL

Chapter 11 Network Security

Chapter 12 SNMP

Chapter 13 Cluster

Chapter 14 Maintenance

Chapter 15 System Maintenance Via FTP

Appendix A: Specifications

Appendix B: Configuring the Pcs

Appendix C: 802.1X Client Software

Appendix D: Glossary

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