Page 1 TL-SG2216/TL-SG2424/TL-SG2424P/TL-SG2452 Gigabit Smart Switch REV1.4.0 1910011095...
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. ...
Page 4: Table Of Contents
CONTENTS Package Contents ..........................1 Chapter 1 About this Guide......................2 1.1 Intended Readers ......................2 1.2 Conventions........................2 1.3 Overview of This Guide ....................2 Chapter 2 Introduction ........................6 2.1 Overview of the Switch ....................6 2.2 Main Features.......................6 2.3 Appearance Description ....................7 2.3.1 Front Panel ......................7 2.3.2 ...
Page 5 5.1 Port ..........................40 5.1.1 Port Config .......................40 5.1.2 Port Mirror ......................41 5.1.3 Port Security ....................43 5.1.4 Port Isolation ....................45 5.1.5 Loopback Detection ..................46 5.2 LAG ..........................47 5.2.1 LAG Table ......................48 5.2.2 Static LAG ......................49 5.2.3 LACP Config ....................50 5.3 Traffic Monitor ......................52 5.3.1 ...
Page 6 8.1 IGMP Snooping ......................95 8.1.1 Snooping Config ....................97 8.1.2 VLAN Config ....................97 8.1.3 Port Config .......................99 8.1.4 IP-Range......................100 8.1.5 Multicast VLAN ....................101 8.1.6 Static Multicast IP...................104 8.1.7 Packet Statistics.....................105 8.2 MLD Snooping ......................107 8.2.1 Global Config ....................108 8.2.2 VLAN Config ....................110 8.2.3 ...
Page 7 10.1.4 Standard-IP ACL ....................139 10.1.5 Extend-IP ACL ....................139 10.2 Policy Config......................140 10.2.1 Policy Summary .....................141 10.2.2 Policy Create....................141 10.2.3 Action Create ....................142 10.3 Policy Binding ......................142 10.3.1 Binding Table ....................142 10.3.2 Port Binding ....................143 10.3.3 VLAN Binding....................143 10.4 Application Example for ACL ..................144 Chapter 11 PoE ..........................147 ...
Page 8 13.2.2 Neighbor Info ....................175 13.3 Device Statistics......................175 13.4 LLDP-MED .......................177 13.4.1 Global Config ....................178 13.4.2 Port Config .....................179 13.4.3 Local Info .......................180 13.4.4 Neighbor Info ....................181 Chapter 14 Maintenance ......................183 14.1 System Monitor......................183 14.1.1 CPU Monitor ....................183 14.1.2 Memory Monitor .....................184 14.2 ...
Page 9: Package Contents
 One Gigabit Smart Switch  One power cord  Two mounting brackets and other fittings  Installation Guide  Resource CD for TL-SG2216/TL-SG2424/TL-SG2424P/TL-SG2452, including:  This User Guide  CLI Reference Guide  SNMP Mibs  Other Helpful Information Note: Make sure that the package contains the above items.
Page 10: Chapter 1 About This Guide
Tips: The TL-SG2216/TL-SG2424/TL-SG2424P/TL-SG2452 switchs are sharing this User Guide. They just differ in the number of LED indicators and ports. For simplicity, we will take TL-SG2424 for example throughout this Guide. However, differences with significance will be presented with figures or notes as to attract your attention.
Page 11 Chapter Introduction Chapter 3 Login to the Switch Introduces how to log on to the Web management page. 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 ...
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 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 14: Chapter 2 Introduction
2.1 Overview of the Switch Designed for workgroups and departments, TL-SG2216/TL-SG2424/TL-SG2424P/TL-SG2452 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. The EIA-standardized framework and smart configuration capacity can provide flexible solutions for a variable scale of networks.
Page 15: Appearance Description
The front panel of TL-SG2452 is shown as Figure 2-4. Figure 2-4 Front Panel of TL-SG2452 The following parts are located on the front panel of TL-SG2216/TL-SG2424/TL-SG2424P/ TL-SG2452:  Reset: Press this button for five seconds or above to reset the software setting back to factory default setting.
Page 16 Note: The SFP port can only be used with a gigabit module.  LEDs For TL-SG2216/TL-SG2424: Name Status Indication Power is on. Power Flashing Power supply is abnormal. Power is off or power supply is abnormal. The switch is working abnormally.
Page 17 When the PoE LED is on, the port LED is indicating the power supply status. Name Status Indication The switch is powered on. Power The switch is powered off or power supply is abnormal. Flashing Power supply is abnormal. Flashing The switch works properly.
Page 18: Rear Panel
2.3.2 Rear Panel The rear panel of TL-SG2216/TL-SG2424/TL-SG2424P/TL-SG2452 features a power socket and a Grounding Terminal (marked with ), here we take TL-SG2216 for example. Figure 2-5 Rear Panel  Grounding Terminal: The switch 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 19: 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 20: Configuration
3.2 Configuration After a successful login, the main page will appear as Figure 3-6, and you can configure the function by clicking the setup menu on the left side of the screen. 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.
Page 21: 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, System IP and System IPv6 pages.
Page 22 Indicates the SFP port is at the speed of 1000Mbps. When the cursor moves on the port, the detailed information of the port will be displayed. Figure 4-2 Port Information Port Info  Port: Displays the port number of the switch. Type: Displays the type of the port.
Page 23: Device Description
4.1.2 Device Description On this page you can configure the description of the switch, including device name, device location and system contact. Choose the menu System→System Info→Device Description to load the following page. Figure 4-4 Device Description The following entries are displayed on this screen: Device Description ...
Page 24: Daylight Saving Time
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  Manual: When this option is selected, you can set the date and time manually. Get Time from NTP When this option is selected, you can configure the time zone Server:...
Page 25: System Ip
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: Second Sunday in March, 02:00 ~ First Sunday in  November, 02:00. Australia: First Sunday in October, 02:00 ~ First Sunday in ...
Page 26 Choose the menu System→System Info→System IP to load the following page. Figure 4-7 System IP The following entries are displayed on this screen: IP Config  MAC Address: Displays MAC Address of the switch. IP Address Mode: Select the mode to obtain IP Address for the switch. Static IP: When this option is selected, you should enter IP ...
Page 27: System Ipv6
4. If DHCP or BOOTP option is selected, the switch will get network parameters dynamically from the Internet, which means that IP address, subnet mask and default gateway cannot be configured. 5. By default, the IP address is 192.168.0.1. 4.1.6 System IPv6 IPv6 (Internet Protocol version 6), also called IPng (IP next generation), was developed by the IETF (Internet Engineering Task Force) as the successor to IPv4 (Internet Protocol version 4).
Page 28 messages takes the place of Address Resolution Protocol (ARP) message, Internet Control Message Protocol version 4 (ICMPv4) router discovery message, and ICMPv4 redirection message to provide a series of other functions.  Introduction to IPv6 address 1. IPv6 address format An IPv6 address is represented as a series of 16-bit hexadecimals, separated by colons (:).
Page 29 Anycast address: An identifier for a set of interfaces (typically belonging to different nodes).  A packet sent to an anycast address is delivered to one of the interfaces identified by that address (the nearest one, according to the routing protocols’ measure of distance). The type of an IPv6 address is designated by the first several bits called format prefix.
Page 30 setting the universal/local (U/L) bit--the seventh bit of the first octet--to a value of 0 or 1. A value of 0 indicates a locally administered identifier; a value of 1 indicates a globally unique IPv6 interface identifier. Take MAC address 0012:0B0A:2D51 as an example. Insert FFFE to the middle of the address to get 0012:0BFF:FE0A:2D51.
Page 31 Note: You can configure multiple IPv6 addresses per interface, but only one link-local address.  IPv6 Neighbor Discovery The IPv6 neighbor discovery process uses ICMP messages and solicited-node multicast addresses to determine the link-layer address of a neighbor on the same network (local link), verify the reachability of a neighbor, and track neighboring devices.
Page 32 function of IPv4). DAD is accomplished through NS and NA messages. The DAD procedure is as follows: Node A sends an NS message whose source address is the unassigned address :: and  destination address is the corresponding solicited-node multicast address of the IPv6 address to be detected.
Page 33 A device will send an IPv6 ICMP redirect message when the following conditions are satisfied: The receiving interface is the forwarding interface.  The selected route itself is not created or modified by an IPv6 ICMP redirect message.  The selected route is not the default route. ...
Page 34 Link-local Address Config  Config Mode: Select the link-local address configuration mode. Manual: When this option is selected, you should assign a  link-local address manually. Auto: When this option is selected, the switch will generate a  link-local address automatically. Link-local Address: Enter a link-local address.
Page 35: User Management
Type: Displays the configuration mode of the global address. Manual: Indicates that corresponding address  configured manually. Auto: Indicates that the corresponding address is created  automatically using the RA message or obtained from the DHCPv6 Server. Preferred Displays the preferred time and valid time of the global address. Lifetime/Valid Lifetime: Status:...
Page 36 Choose the menu System→User Management→User Config to load the following page. Figure 4-12 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 37: 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 38: 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 39: System Reboot
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. Please save the current configuration before rebooting to avoid losing the configuration unsaved Choose the menu System→System Tools→System Reboot to load the following page.
Page 40 Choose the menu System→Access Security→Access Control to load the following page. Figure 4-18 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.
Page 41: 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  Number Control: Select Enable/Disable the Number Control function. Admin Number: Enter the maximum number of the users logging on to the Web management page as Admin.
Page 42: Ssh Config
Choose the menu System→Access Security→SSL Config to load the following page. Figure 4-19 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.
Page 43 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 44 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 45 2. Click the Open button in the above figure to log on to the switch. Enter the login user name and password, and then you can continue to configure the switch. Application Example 2 for SSH: Network Requirements  1. Log on to the switch via key authentication using SSH and the SSH function is enabled on the switch.
Page 46 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 cannot be interrupted. 4.
Page 47 5. Click Browse to download the private key file to SSH client software and click Open. 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. Return to CONTENTS...
Page 48: Chapter 5 Switching
Chapter 5 Switching Switching module is used to configure the basic functions of the switch, including five submenus: Port, LAG, Traffic Monitor, MAC Address and DHCP Filtering. 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 49: 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 50 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. The value will be "Ingress" or "Egress". Mirrored Port: Displays the mirrored ports. Operation: Click Edit to configure the mirror group.
Page 51: Port Security
Mirrored Port  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. 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.
Page 52 Choose the menu Switching→Port→Port Security to load the following page. 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 53: 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 54: Loopback Detection
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. Choose the menu Switching→Port→Loopback Detection to load the following page. Figure 5-6 Loopback Detection Config The following entries are displayed on this screen Global Config...
Page 55: Lag
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 Loopback Detection configuration. It is multi-optional. Port: Displays the port number. Status: Enable or disable Loopback Detection function for the port. Operation Mode: Select the mode how the switch processes the detected loops.
Page 56: Lag Table
Tips: Calculate the bandwidth for a LAG: If a LAG consists of the four ports in the speed of 1000Mbps Full Duplex, the whole bandwidth of the LAG is up to 8000Mbps (2000Mbps * 4) because the bandwidth of each member port is 2000Mbps counting the up-linked speed of 1000Mbps and the down-linked speed of 1000Mbps.
Page 57: Static Lag
Operation: Allows you to view or modify the information for each LAG.  Edit: Click to modify the settings of the LAG.  Detail: Click to get the information of the LAG. Click the Detail button for the detailed information of your selected LAG. Figure 5-8 Detailed Information 5.2.2 Static LAG On this page, you can manually configure the LAG.
Page 58: Lacp Config
Description: Displays the description of the LAG. Member Port  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 59 Choose the menu Switching→LAG→LACP Config to load the following page. Figure 5-10 LACP Config The following entries are displayed on this screen Global Config  System Priority: Specify the system priority for the switch. The system priority and MAC address constitute the system identification (ID). A lower system priority value indicates a higher system priority.
Page 60: Traffic Monitor
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. 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.
Page 61: Traffic Statistics
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. Port: Displays the port number. Packets Rx: Displays the number of packets received on the port.
Page 62 Displays the number of good unicast packets received or transmitted on the port. The error frames are not counted in. Alignment Errors: For TL-SG2216/TL-SG2424/TL-SG2424P: Displays the number of the received packets that have a bad Frame Check Sequence (FCS) with a non-integral octet (Alignment Error) and have a bad FCS with an integral octet (CRC Error).
Page 63: Mac Address
5.4 MAC Address The main function of the switch is forwarding the packets to the correct ports based on the destination MAC address of the packets. Address Table contains the port-based MAC address information, which is the base for the switch to forward packets quickly. The entries in the Address Table can be updated by auto-learning or configured manually.
Page 64: Static Address
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 65 Choose the menu Switching→MAC Address→Static Address to load the following page. Figure 5-14 Static Address The following entries are displayed on this screen: Create Static Address  MAC Address: Enter the static MAC Address to be bound. VLAN ID: Enter the corresponding VLAN ID of the MAC address. Port: Select a port from the pull-down list to be bound.
Page 66: Dynamic Address
Aging Status: Displays the Aging Status of the MAC address. Note: If the corresponding port number of the MAC address is not correct, or the connected port (or the device) has been changed, the switch cannot forward the packets correctly. Please reset the static address entry appropriately.
Page 67: Filtering Address
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.  MAC: Enter the MAC address of your desired entry. ...
Page 68 Choose the menu Switching→MAC Address→Filtering Address to load the following page. Figure 5-16 Filtering Address 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 ...
Page 69: Dhcp Filtering
5.5 DHCP Filtering Nowadays, the network is getting larger and more complicated. The amount of the PCs always exceeds that of the assigned IP addresses. The wireless network and the laptops are widely used and the locations of the PCs are always changed. Therefore, the corresponding IP address of the PC should be updated with a few configurations.
Page 70 Most clients obtain IP addresses dynamically, which is illustrated in the following figure. Figure 5-18 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 71 Figure 5-19 DHCP Cheating Attack Implementation Procedure DHCP Filtering feature allows only the trusted ports to forward DHCP packets and thereby ensures that users get proper IP addresses. DHCP Filtering is to monitor the process of hosts obtaining the IP addresses from DHCP servers, and record the IP address, MAC address, VLAN and the connected Port number of the Host for automatic binding.
Page 72: 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 73: Q 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 74: Vlan Config
PVID  PVID (Port VLAN ID) is the default VID of the port. When the switch receives an un-VLAN-tagged packet, it will add a VLAN tag to the packet according to the PVID of its received port and forward the packets. When creating VLANs, the PVID of each port, indicating the default VLAN to which the port belongs, is an important parameter with the following two purposes: （1）...
Page 75 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. The following entries are displayed on this screen: VLAN Create ...
Page 76: Application Example For 802.1Q Vlan
VLAN Name: Here you can set the name of the VLAN you choose. Port: Displays the port number. Untagged: The port will be an untagged member of the specific VLAN if you select it. Tagged: The port will be an tagged member of the specific VLAN if you select it.
Page 77 Step Operation Description Create VLAN20 Required. On VLAN→802.1Q VLAN→VLAN Config page, create a VLAN with its VLAN ID as 20, owning Port 3 and Port 4. Configure Switch B  Step Operation Description Configure Required. On VLAN→802.1Q VLAN→VLAN Config page, configure Link Type of the the link type of Port 7, Port 6 and Port 8 as Untagged, Tagged and ports...
Page 78: 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 79 Figure 7-1 Basic STP diagram STP Timers  Hello Time: Hello Time ranges from 1 to 10 seconds. It specifies the interval to send BPDU packets. It is used to test the links. Max. Age: Max. Age ranges from 6 to 40 seconds. It specifies the maximum time the switch can wait without receiving a BPDU before attempting to reconfigure.
Page 80 Comparing BPDUs  Each switch sends out configuration BPDUs and receives a configuration BPDU on one of its ports from another switch. The following table shows the comparing operations. Step Operation If the priority of the BPDU received on the port is lower than that of the BPDU if of the port itself, the switch discards the BPDU and does not change the BPDU of the port.
Page 81 The condition for the root port to transit its port state rapidly: The old root port of the switch  stops forwarding data and the designated port of the upstream switch begins to forward data. The condition for the designated port to transit its port state rapidly: The designated port is ...
Page 82 The following figure shows the network diagram in MSTP. 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.
Page 83: Stp Config
The following diagram shows the different port roles. 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 84 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 85: Stp Summary
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. Figure 7-5 STP Summary 7.2 Port Config On this page you can configure the parameters of the ports for CIST...
Page 86 Choose the menu Spanning Tree→Port Config to load the following page. 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.
Page 87: 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 88: Instance Config
Choose the menu Spanning Tree→MSTP Instance→Region Config to load the following page. 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.
Page 89: 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 90 Choose the menu Spanning Tree→MSTP Instance→Instance Port Config to load the following page. 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 91: Stp Security
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. Enable Spanning Tree function on the switch parameters configure MSTP parameters Spanning Tree→STP Config→STP Config page.
Page 92 its position and network topology jitter to occur. In this case, flows that should travel along high-speed links may lead to low-speed links, and network congestion may occur. To avoid this, MSTP provides root protect function. Ports with this function enabled can only be set as designated ports in all spanning tree instances.
Page 93 Choose the menu Spanning Tree→STP Security→Port Protect to load the following page. 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.
Page 94: 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 95 On Spanning Tree→STP Config→Port Config page, enable 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...
Page 96 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 region Config page, configure VLAN-to-Instance mapping table.
Page 97 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 On Spanning Tree→MSTP Instance→Instance mapping table of the MST region Config page, configure VLAN-to-Instance mapping table.
Page 98 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 99: 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 100 IPv4 Multicast Address  1. IPv4 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 101 0XFF at the start of the address identifies the address as being a multicast address.  Flags have 4 bits:  The high-order flag is reserved, and must be initialized to 0. R: Set to 0 to indicate this IPv6 multicast address does not contain an embedded RP address;...
Page 102 Reserved Multicast Addresses: Address Indication FF01::1 All interface-local IPv6 nodes FF02::1 All link-local IPv6 nodes FF01::2 All interface-local IPv6 routers FF02::2 All link-local IPv6 routers FF05::2 All site-local IPv6 routers FF0X:: X ranges from 0 to F. These multicast addresses are reserved and shall never be assigned to any multicast group.
Page 103: Igmp Snooping
Multicast Address Table  The switch is forwarding multicast packets based on the multicast address table. As the transmission of multicast packets cannot span the VLAN, the first part of the multicast address table is VLAN ID, based on which the received multicast packets are forwarded in the VLAN owning the receiving port.
Page 104 if the multicast groups contain any member. When receiving IGMP leave message, the receiving port of the router will send IGMP group-specific-query message to the multicast group and the switch will forward IGMP group-specific-query message to check if other members in the multicast group of the port need this multicast.
Page 105: Snooping Config
The IGMP Snooping function can be implemented on the following pages: Snooping Config, VLAN Config, Port Config, IP-Range, Multicast VLAN, Static Multicast IP and Packet Statistics. 8.1.1 Snooping Config To configure the IGMP Snooping on the switch, please firstly configure IGMP global configuration and related parameters on this page.
Page 106 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 107: Port Config
Member Port Time: Displays the member port time of the VLAN. Leave Time: Displays the leave time of the VLAN. Router Port: Displays the router port of the VLAN. Note: The settings here will be invalid when multicast VLAN is enabled Configuration procedure: Step Operation Description...
Page 108: Ip-Range
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 109: Multicast Vlan
Choose the menu Multicast→IGMP Snooping→IP-Range to load the following page. Figure 8-8 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.
Page 110 Before configuring a multicast VLAN, you should firstly configure a VLAN as multicast VLAN and add the corresponding ports to the VLAN on the 802.1Q VLAN page. If the multicast VLAN is enabled, the multicast configuration for other VLANs on the VLAN Config page will be invalid, that is, the multicast streams will be transmitted only within the multicast VLAN.
Page 111 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 112: Static Multicast Ip
Network Diagram  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 Tagged, and add it to VLAN3, VLAN4 and VLAN5.
Page 113: Packet Statistics
Choose the menu Multicast→IGMP Snooping→Static Multicast IP to load the following page. Figure 8-10 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 114 Choose the menu Multicast→IGMP Snooping→Packet Statistics to load the following page. Figure 8-11 Packet Statistics The following entries are displayed on this screen: 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.
Page 115: Mld Snooping
Error Packet: Displays the number of error packets the port received. 8.2 MLD Snooping MLD Snooping  Multicast Listener Discovery（MLD）snooping is applied for efficient distribution of IPv6 multicast data to clients and routers in a Layer 2 network. With MLD snooping, IPv6 multicast data is selectively forwarded to a list of ports that want to receive the data, instead of being flooded to all ports in a VLAN.
Page 116: Global Config
MLD Snooping Process  General Query The MLD router regularly sends MLD general queries to query if the multicast groups contain any members. When receiving MLD general queries, the switch will forward them to all other ports in the VLAN. The receiving port will be processed: if the receiving port is not a router port yet, it will be added to the router port list with its router port aging time specified;...
Page 117 Chose the menu Multicast→MLD Snooping→Global Config to load the following page. Figure 8-12 Global Config The following entries are displayed on this screen: Global Config  MLD Snooping: Enable or disable MLD Snooping function globally. Report Message Enable or disable Report Message Suppression function globally. Suppression: If this function is enabled, the first Report Message from the listener will forward to the router ports while the subsequent...
Page 118: Vlan Config
Last Listener Query Enter the Last Listener Query numbers. When the multicast Count: group has no more member ports, it will send this numbers of Specific Query Message to check whether there is another listener. Multicast VLAN: Enable or disable multicast VLAN function. When multicast VLAN is enabled, all multicast data will forward in this VLAN if this port belongs to the VLAN.
Page 119 Choose the menu Multicast→MLD Snooping→VLAN Config to load the following page. Figure 8-13 VLAN Config The following entries are displayed on this screen: VLAN Config  VLAN ID: Enter the VLAN ID you want to configure. Router Port Aging Enter the router port aging time for this VLAN. It will override the Time: global configured aging time.
Page 120: Filter Config
Static Router Ports: Displays the static router ports of this VLAN. Dynamic Router Displays the dynamic router ports of this VLAN. Ports： Note: 1. The MLD snooping function in a VLAN will take effect when global MLD Snooping function is enabled in 8.2.1 Global Config and the VLAN is created in...
Page 121: Port Config
8.2.4 Port Config On this page you can configure MLD Snooping function with each single port. Choose the menu Multicast→MLD Snooping→Port Config to load the following page. Figure 8-15 Port Config The following entries are displayed on this screen: Port Config ...
Page 122: Querier Config
Choose the menu Multicast→MLD Snooping→Static Multicast to load the following page. Figure 8-16 Static Multicast Config The following entries are displayed on this screen: Static Multicast Config  VLAN ID: Enter the VLAN ID. Multicast IP: Enter the multicast IP address. Member Ports: Enter the member ports of the static multicast group.
Page 123: Packet Statistics
Choose the menu Multicast→MLD Snooping→Querier Config to load the following page. Figure 8-17 Querier Config The following entries are displayed on this screen: Querier Config  VLAN ID: Enter the VLAN ID which you want to start Querier. Maximum Response Enter the value of Maximum Response Time field of Time: the Query message.
Page 124 Choose the menu Multicast→MLD Snooping→Packet Statistics to load the following page. Figure 8-18 MLD Packet Statistics The following entries are displayed on this screen: Auto Fresh  Auto Fresh: Select Enable/Disable auto fresh feature. Fresh Period: Enter the time from 3 to 300 seconds to specify the auto fresh period.
Page 125: Multicast Table
Error Packet: Displays the number of error packets which the switch has received. 8.3 Multicast Table In a network, receivers can join different multicast groups appropriate to their needs. The switch forwards multicast streams based on IPv4/IPv6 multicast address table. The Multicast Table function is implemented on the IPv4 Multicast Table and IPv6 Multicast Table pages.
Page 126: Ipv6 Multicast Table
Type: Displays the type of the multicast IP. 8.3.2 IPv6 Multicast Table This page displays the multicast groups which already on the switch. Choose the menu Multicast→Multicast Table→IPv6 Multicast Table to load the following page. Figure 8-20 IPv6 Multicast Table The following entries are displayed on this screen: Search Option ...
Page 127: 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 128 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 129 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 cannot get service for a long time.
Page 130: Diffserv
Equ-Mode: Equal-Mode. In this mode, all the queues occupy the bandwidth equally. The weight value ratio of all the queues is 1:1:1:1. 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.
Page 131: Dscp Priority
8021.1P Priority mode is enabled; the untagged non-IP datagram are mapped based on port priority mode. Choose the menu QoS→DiffServ→DSCP Priority to load the following page. For TL-SG2216/TL-SG2424/TL-SG2424P: Figure 9-7 DSCP Priority The following entries are displayed on this screen DSCP Priority Config ...
Page 132 Priority Level  DSCP: Indicates the priority determined by the DS region of IP datagram. It ranges from 0 to 63. Priority Level: Indicates the 802.1P priority the packets with tag are mapped to. The priorities are labeled as CoS0 ~ CoS7. Configuration Procedure: Step Operation Description...
Page 133: P/Cos Mapping
Priority Level  DSCP: Indicates the priority determined by the DS region of IP datagram. It ranges from 0 to 63. Priority Level: Indicates the 802.1P priority the packets with tag are mapped to. The priorities are labeled as TC0 ~ TC3. Configuration Procedure: Step Operation Description...
Page 134: Schedule Mode
CoS-id are mapped to. The priority levels of egress queue are labeled as TC0, TC1, TC2 and TC3. Note: For TL-SG2216/TL-SG2424/TL-SG2424P, the 802.1P priority function is enabled by default and cannot be set as disabled. Configuration Procedure: Step Operation...
Page 135: 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 136: 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 137 Choose the menu QoS→Bandwidth Control→Storm Control to load the following page. For TL-SG2216/TL-SG2424/TL-SG2424P: Figure 9-12 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.
Page 138 Note: If you enable storm control feature for the ingress rate limit-enabled port, ingress rate limit feature will be disabled for this port. For TL-SG2452: Figure 9-13 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.
Page 139: 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 140 In practice, the port voice VLAN mode is configured according to the type of packets sent out from voice device and the link type of the port. The following table shows the detailed information. Port Voice Voice Link type of the port and processing mode VLAN Mode Stream Type Untagged: Not supported.
Page 141: Global Config
9.3.1 Global Config On this page, you can configure the global parameters of the voice VLAN, including VLAN ID and aging time. Choose the menu QoS→Voice VLAN→Global Config to load the following page. Figure 9-14 Global Configuration The following entries are displayed on this screen: Global Config ...
Page 142: Oui 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 143 Choose the menu QoS→Voice VLAN→OUI Config to load the following page. Figure 9-16 OUI Configuration 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.
Page 144 Step Operation Description Enable Voice VLAN Required. On QoS→Voice VLAN→Global Config page, configure the global parameters of voice VLAN. Return to CONTENTS...
Page 145: Chapter 10 Acl
Chapter 10 ACL 10.1 ACL Config An ACL may contain a number of rules, and each rule specifies a different package range. Packets are matched in match order. Once a rule is matched, the switch processes the matched packets taking the operation specified in the rule without considering the other rules, which can enhance the performance of the switch.
Page 146: Mac Acl
Choose the menu ACL→ACL Config→ACL Create to load the following page. Figure 10-2 ACL Create 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.
Page 147: Standard-Ip Acl
S-MAC: Enter the source MAC address contained in the rule. D-MAC: Enter the destination MAC address contained in the rule. MASK: Enter MAC address mask. If it is set to 1, it must strictly match the address. 10.1.4 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 148: Policy Config
Choose the menu ACL→ACL Config→Extend-IP ACL to load the following page. Figure 10-5 Create Extend-IP Rule The following entries are displayed on this screen: Create Extend-IP ACL  ACL ID: Select the desired Extend-IP ACL for configuration. Rule ID: Enter the rule ID. Operation: Select the operation for the switch to process packets which match the rules.
Page 149: Policy Summary
10.2.1 Policy Summary On this page, you can view the ACL and the corresponding operations in the policy. Choose the menu ACL→Policy Config→Policy Summary to load the following page. Figure 10-6 Policy Summary The following entries are displayed on this screen: Search Option ...
Page 150: Action Create
10.2.3 Action Create On this page you can add ACLs for the policy. Choose the menu ACL→Policy Config→Action Create to load the following page. Figure 10-8 Action Create The following entries are displayed on this screen: Create Action  Select Policy: Select the name of the policy.
Page 151: Port Binding
Direction: Displays the binding direction. Note: For TL-SG2216/TL-SG2424/TL-SG2424P, you can bind one policy to multiple interfaces; but for TL-SG2452, you can bind one policy to only one interface. 10.3.3 VLAN Binding On this page you can bind a policy to a VLAN.
Page 152: Application Example For Acl
Note: For TL-SG2216/TL-SG2424/TL-SG2424P, you can bind one policy to multiple VLANs; but for TL-SG2452, you can bind one policy to only one VLAN. 10.4 Application Example for ACL Network Requirements ...
Page 153 2. The staff of the R&D department cannot access to the Internet but can visit the forum. 3. The staff of the marketing department can access to the Internet but cannot visit the forum. 4. The R&D department and marketing department cannot communicate with each other. Network Diagram ...
Page 154 Step Operation Description 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 10.10.70.0 and mask as 255.255.255.0, configure D-IP as 10.10.50.0 and mask as 255.255.255.0.
Page 155: Chapter 11 Poe
Chapter 11 PoE Note: Only TL-SG2424P supports PoE function. PoE (Power over Ethernet) technology describes a system to transmit electrical power along with data to remote devices over standard twisted-pair cable in an Ethernet network. It is especially useful for supplying power to IP telephones, wireless LAN access points, cameras and so on. ...
Page 156: Poe Config
PoE Config, mainly for PoE attributes configuration, is implemented on PoE Config and PoE Profile pages. 11.1.1 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 11-1 PoE Config for TL-SG2424P The following items are displayed on this screen: Global Config...
Page 157: 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 158: Poe Time-Range
Power Limit: Defines the max power the corresponding port can supply. Class1 represents 4w, Class2 represents 7w and Class3 represents 15.4w. (for ) Defines the max power the corresponding port can supply. Class1 represents 4w, Class2 represents 7w, Class3 represents 15.4w, and Class4 represents 30w.
Page 159: 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. 11.2.2 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 160: 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. 11.2.3 PoE Holiday Config Holiday mode is applied as a different secured access control policy from the week mode.
Page 161: 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 162 normally. You can select the management mode with proper security level according to your actual 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.
Page 163: Snmp Config
3. Create SNMP User 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 164: 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 165: 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 166: 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 167 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 168: Snmp Community
12.1.5 SNMP Community SNMP v1 and SNMP v2c adopt community name authentication. The community name can limit access to the SNMP agent from SNMP network management station, functioning as a password. If SNMP v1 or SNMP v2c is employed, you can directly configure the SNMP Community on this page without configuring SNMP Group and User.
Page 169: Configuration Procedure
Configuration Procedure: If SNMPv3 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 170: Notification
12.2 Notification With the Notification function enabled, the switch can initiatively report to the management station about the important events that occur on the Views (e.g., the managed device is rebooted), which allows the management station to monitor and process the events in time. The notification information includes the following two types: Trap ：...
Page 171: Rmon
Type: Select the type for the notifications.  Trap: Indicates traps are sent.  Inform: Indicates informs are sent. The Inform type has a higher security than the Trap type. Retry: Specify the amount of times the switch resends an inform request.
Page 172: History Control
RMON Group Function History Group After a history group is configured, the switch collects and records network statistics information periodically, based on which the management station can monitor network effectively. Event Group Event Group is used to define RMON events. Alarms occur when an event is detected.
Page 173: Event Config
Status: Select Enable/Disable the corresponding sampling entry. 12.3.2 Event Config On this page, you can configure the RMON events. Choose the menu SNMP→RMON→Event Config to load the following page. Figure 12-10 Event Config The following entries are displayed on this screen: Event Table ...
Page 174: Alarm Config
12.3.3 Alarm Config On this page, you can configure Statistic Group and Alarm Group for RMON. Choose the menu SNMP→RMON→Alarm Config to load the following page. Figure 12-11 Alarm Config The following entries are displayed on this screen: Alarm Table ...
Page 175  Rising: When the sampled value exceeds the Rising Threshold, an alarm event is triggered.  Falling: When the sampled value is under the Falling Threshold, an alarm event is triggered. Interval: Enter the alarm interval time in seconds. Owner: Enter the name of the device or user that defined the entry.
Page 176: Chapter 13 Lldp
Chapter 13 LLDP Note: Only TL-SG2424P supports LLDP function. 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.
Page 177 or to allow the port to both transmit and receive LLDPDUs. Four LLDP admin statuses are supported by each port.  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. ...
Page 178 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 179 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. TLV Type Description Port Description TLV The Port Description TLV allows network management to advertise the IEEE 802 LAN station's port description.
Page 180: 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. 13.1 Basic Config LLDP is configured on the Global Config and Port Config pages. 13.1.1 Global Config On this page you can configure the LLDP parameters of the device globally.
Page 181: 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 182: Device Info
13.2 Device Info You can view the LLDP information of the local device and its neighbors on the Local Info and Neighbor Info pages respectively. 13.2.1 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 183: 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. 13.2.2 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 184 Choose the menu LLDP→Device Statistics→Statistic Info to load the following page. Figure 13-5 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 ...
Page 185: Lldp-Med
Neighbor Statistics  Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Port: Displays local device's port number. Transmit Total: Displays the number of LLDPDUs sent by this port. Receive Total: Displays the number of LLDPDUs received by this port.
Page 186: Global Config
Description Location Identification TLV The Location Identification TLV provides for advertisement of location identifier information to Communication Endpoint Devices, based on configuration of the Network Connectivity Device it's connected to. You can set the Location Identification content in Location Identification Parameters. If Location Identification TLV is included and Location Identification Parameters isn't set, a default value is used in Location Identification TLV.
Page 187: Port Config
13.4.2 Port Config On this page you can configure all ports' LLDP-MED parameters. Choose the menu LLDP→LLDP-MED→Port Config to load the following page. Figure 13-7 LLDP-MED Port Configuration The following entries are displayed on this screen LLDP-MED Port Config  Port Select: Select the desired port to configure.
Page 188: 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 189: Neighbor Info
Choose the menu LLDP→LLDP-MED→Local Info to load the following page. Figure 13-8 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 ...
Page 190 Choose the menu LLDP→LLDP-MED→Neighbor Info to load the following page. Figure 13-9 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 ...
Page 191: 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 192: Memory Monitor
14.1.2 Memory Monitor Choose the menu Maintenance→System Monitor→Memory Monitor to load the following page. 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 193: 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 194: Remote Log
Choose the menu Maintenance→Log→Local Log to load the following page. Figure 14-4 Local Log The following entries are displayed on this screen: Local Log Config  Select: Select the desired entry to configure the corresponding local log.  Channel: Log buffer: Indicates the RAM for saving system log. The inforamtion in the log buffer is displayed on the Log Table page.
Page 195: Backup Log
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 196: Network Diagnostics
Choose the menu Maintenance→Device Diagnostics→Cable Test to load the following page. Figure 14-7 Cable Test The following entries are displayed on this screen: Cable Test  Port: Select the port for cable testing. 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 or impedance.
Page 197: Tracert
Figure 14-8 Ping The following entries are displayed on this screen: Ping Config  Destination IP: Enter the IP address of the destination node for Ping test. Both IPv4 and IPv6 are supported. Ping Times: Enter the amount of times to send test data during Ping testing. The default value is recommended.
Page 198 The following entries are displayed on this screen: Tracert Config  Destination IP: Enter the IP address of the destination device. Both IPv4 and IPv6 are supported. Max Hop: Specify the maximum number of the route hops the test data can pass through.
Page 199: Appendix A: Specifications
Transmission Medium 1000Base-T: 4-pair UTP (≤100m) of Cat. 5, Cat. 5e, Cat.6 or above 1000Base-X: MMF or SMF SFP Module (Optional) For TL-SG2216/TL-SG2424: Power, System,1000Mbps, Link/Act For TL-SG2424P: Power, System, 10/100/1000Mbps Port LED, Speed, PoE, PoE Max For TL-SG2452: PWR, SYS, 10/100/1000Mbps...
Page 200: 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 and TCP/IPv6 in WIN7. First make sure your Ethernet Adapter is working, refer to the adapter’s manual if necessary. In IPv4 network：...
Page 201 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 202 In IPv6 network： On the Windows taskbar, click the Start button, and then click Control Panel. Click the View network status and tasks under the tab Network and Internet. Figure B-4 Select Local Network Connection under the tab View your active networks on the prompt page.
Page 203 In the prompt page that showed below, double click on the Internet Protocol Version 6 (TCP/IPv6). Figure B-6 The following TCP/IPv6 Properties window will display and the IP Address tab is open on this window by default. Figure B-7...
Page 204 Select Use the following IPv6 address. And the following items will be available. If the switch's IP address is 3001::1/64, specify IP address as 3001::14 for example , and the Subnet prefix length as 64. Click OK to save your settings. Return to CONTENTS...
Page 205: 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 206 Internet Group Management Protocol (IGMP) A protocol through which hosts can register with their local router for multicast services. If there is more than one multicast switch/router on a given subnetwork, one of the devices is made the “querier” and assumes responsibility for keeping track of group membership. IGMP Snooping Listening to IGMP Query and IGMP Report packets transferred between IP Multicast routers and IP Multicast host groups to identify IP Multicast group members.
Page 207 Remote Authentication Dial-in User Service (RADIUS) RADIUS is a logon authentication protocol that uses software running on a central server to control access to RADIUS-compliant devices on the network. Remote Monitoring (RMON) RMON provides comprehensive network monitoring capabilities. It eliminates the polling required in standard SNMP, and can set alarms on a variety of traffic conditions, including specific error types.

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Tl-sg2216 Tl-sg2424p Tl-sg2452

TP-Link TL-SG2424 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 Poe

Chapter 12 SNMP

Chapter 13 LLDP

Chapter 14 Maintenance

Appendix A: Specifications

Appendix B: Configuring the Pcs

Appendix C: Glossary

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