TP-Link TL-SL3428 manual

TL-SL3428 24-Port 10/100Mbp s + 4-Port Gigabit JetS t ream L2 Managed Switch Rev: 1.1.0 1910010621[...]

COPYRIGHT & TRADEMARKS S pecifications ar e subject to change without notice. is a registered trademark of TP-LINK TECHNOLOGIES CO., L TD. Other brands and product names are trademarks or registered trademarks of t heir respective holders. No part of the specificatio ns ma y be reproduced in any form or by any means or u sed to make any derivat[...]

CONTENTS Package C ontent s ............................................................................................................... ........... 1 Chapter 1 About this Guide........................................................................................................... 2 1.1 Intended Re aders ......................................[...]

5.1.2 Port Mi rror ........................................................................................................ 31 5.1.3 Port Secu rity .................................................................................................... 34 5.1.4 Port Isol ation ............................................................................[...]

7.4.2 TC Prot ect ........................................................................................................ 86 7.5 Application Example for STP F unction ....................................................................... 87 Chapter 8 Multicast .......................................................................................[...]

10.2.4 S tandard-IP ACL ............................................................................................ 129 10.2.5 Extend-IP ACL ............................................................................................... 130 10.3 Policy C onfig ........................................................................................[...]

VI 12.3.3 Alarm C onfig .................................................................................................. 179 Chapter 13 Cluste r ...................................................................................................................... 18 2 13.1 NDP ......................................................................[...]

Package Content s The following items should be found in your box:  One TL-SL3428 Switch  One power cord  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 th[...]

Chapter 1 About this Guide This User Guide contains in formation for setup and managem ent of TL-SL3428 switch. Please read this guide carefully before operation. 1.1 Intended Readers This Guide is intended for network managers fam iliar with IT concepts and network terminologies. 1.2 Conventions In this Guide the following conventions are used: ?[...]

Chapter Introduction Chapter 4 System This module is used to c onfigure system properties of the switch. Here mainly introduces:  System Info: Configure the descr iption, system time and network parameters of the switch.  User Manage: Configure the us er name and password for users to log on to the Web management page with a certain access le[...]

Chapter Introduction Chapter 9 QoS This module is used to conf igure QoS function to provi de different quality of service for vari ous network applications and requirements. Here mainly introduces:  Diff S erv : C on fi gu re priori ties, port priority , 802.1P priority and DSCP priority .  Bandwidth Control: Configure rate limit feature to [...]

Chapter Introduction Chapter 14 Maintenance This m odule is used to assemble t he commonly used system tools to manage the switch. Here mainly introduces:  System Monitor: Monitor the me mory and CPU of the switch.  Log: View configuration pa rameters on the switch.  Cable T est: T est the connection status of the c able connected to the s[...]

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 featur es. It provides a variet y of service features and multiple powerful fu[...]

2.3 Appearance Description 2.3.1 Front Panel Figure 2-1 Front Panel The following parts are lo cated on the front panel of the Switch:  10/100Mbp s Port s: Designed to connect to the device with a bandwidth of 10Mbps or 100Mbps. Each has a corresponding 10/100Mbps LED.  10/100/1000Mbps Port s: Designed to connect to the device with a ban dwid[...]

Note: When using the SFP port with a 100M module or a gigabit module, you need log on to the GUI (Graphical User Interface) of the Switch and configure its co rresponding S peed and D uplex mode on Switching → Port → Port Config p age. For 100M module, please select 100MFD while select 1000MFD for gigabit module. By default, the S peed and Dupl[...]

Chapter 3 Login to the Switch 3.1 Login 1) T o access the configurat ion 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: T o log in to the Switch, the IP address of your PC should be set in the same subnet addresses of the S[...]

Figure 3-3 Main Setup-Menu Note: Clicking Appl y can only make the new conf igurations effective before the switch is rebooted. If you want to keep the configur ations effective even the switch is rebooted, please click Saving Config . Y ou are suggested to click Saving Config before cutting off the power or rebooting the switch to avoid losing the[...]

Chapter 4 System The System module is mainly for system confi guration of the switch, including four submenus: System Info , User Manage, System T ools and Access Security . 4.1 System Info The System Info, mainly for basic proper ties configuration, can be implemented on System Summary , Device Description , Sy stem T ime and Sy stem IP pages. 4.1[...]

Indicates the 100Mbps port is a t the speed of 10Mbps. Indicates the 1000Mbps port is not connected to a device. Indicates the 1000Mbps port is at the speed of 1000Mbp s. Indicates the 1000Mbps port is at the speed of 10Mbp s or 100Mbps. Indicates the SFP port is not connected to a device. Indicates the SFP port is at the speed of 1000Mbps. Indicat[...]

Figure 4-3 Bandwidth Utilization  Bandwidth Utilization Rx: Select Rx to display the bandwidth utilization of receiving p ackets on this port. Tx: Select Tx to display the bandwi dth utilization of sending p ackets on this port. 4.1.2 Device Description On this page you can configur e the descripti on of the switch, incl uding device nam e, devi[...]

Device Loca tion: Enter the location of the switch. System Cont act: Enter your contact information. 4.1.3 System T ime System T ime is the time displayed while th e switch is running. O n this page you can configure the system time and the s ettings here will be used for other time-based functions l ike ACL. Y ou can ma nual ly se t the syste m ti[...]

Get GMT : When this option is selected, you can configure the time zone and the IP Address for the NTP Serv er . The switch will get GMT automatically if it has connected to a NTP Server .  T ime Zone: Select your local time.  Primary/Secondary NTP Server: Enter the IP Address for the NTP Server . Synchronize with PC’S Clock: When this opti[...]

IP Address Mode: Select the mode to obtain IP Address for the switch.  S tatic 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 network parameters from the DHCP Server .  BOOTP: When this option is selected, the switch will [...]

Figure 4-7 User T able 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 conf igure the switch; the admin can c onfigure all the functions of the s w i t c h . The W eb [...]

Pass word: T ype a password for users’ login. Confirm Password: Retype the password.  User T able Select: Select the desired entry to delete the corresponding user information. It is multi-optional The current user information can’t be deleted. User ID, Name, Access Level and st atus: Displays the current user ID, user name, access level and[...]

Note: 1. It will take a few minutes to restore the c onfiguration. Please wait without any operation. 2. T o avoid any damage, please don’t power down the switch while being restored. 3. After being restored, the current settings of the switch will be lost. Wrong uploaded configuration file may cause the switch unmanaged. 4.3.2 Config Backup On t[...]

Figure 4-1 1 Firmware Up grade Note: 1. Don’t interrupt the upgrade. 2. Please select the proper software version matching with your hardware to upgrade. 3. T o avoid damage, please don't turn off the device while upgrading. 4. After upgrading, the devic e will reboot automatically . 5. Y ou are suggested to backup t he configuration before [...]

Figure 4-13 System Reset Note: After the system is reset, the sw itch will be reset to the default an d all the settings will be cleared. 4.4 Access Security Access Security provides different security m easures for the remote l ogin so as to enhance the configuration management secu rity. It can be implemented on Access Control , SSL Config and SS[...]

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 W eb management page.  IP-based: Select this option to lim it the IP-range of the users for login.  MAC-based: Select this option to limit the MAC Address of the users for lo[...]

Session T imeout: If you do nothing with the Web management page within the timeout time, the system will log out automatically . If you want to reconfigure, pl ease login again.  Access User Number Number Control ； Select Enable/Disable the Nu mber Control function. Admin Number: Enter the maximum number of t he users logging on to the Web ma[...]

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 Key File: Select the desired SSL Key to [...]

an insecure network environment. It can encry pt all the transmission data and prevent the information in a remote management being leaked. Comprising server and client, SSH has two versi ons, V1 and V2 which are not compatible with each other . In the communication, SSH server and client can auto-negotia te the SSH version and the encryption algor[...]

 Key Download Key T ype: 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. Note: 1. Please ensure the key length of the downloaded file is in the range o[...]

Application Example 2 for SSH:  Network Requirements 1. Log on to the switch via password authentic ation using SSH and the SSH function is enabled on the switch. 2. PuTTY client sof tware is recommended.  Configuration Procedure 1. Select the key type and key length, and generate SSH key . Note: 1. The key len gth is in the range of 256 to 3[...]

3. On the Web management page of the switch, download the public key file saved in the computer to the switch. Note: 1. The key typ e should accord wit h the type of the key file. 2. The SSH key dow nloading can not be i nterrupted. 4. Download the private key f ile to SSH client software. 28[...]

29 5. After the public key and private key are dow nl oaded, please log on to the interface of PuTTY and enter the IP address for login. After successful authentication, pl ease enter the login user name. If you log on to the switch without entering password, it indicates t hat the key has been successfully downloaded. Return to CONTENTS[...]

Chapter 5 Switching Switching module is used to conf igure the basic functi ons of the switch, in cluding four submenus: Port , LAG , T raffic Monitor and MAC Address . 5.1 Port The Port function, allowing you to configure the basic features fo r the port, is implemented on the Port Config , Port Mirror , Port Security and Port Isolation p ages. 5.[...]

Description: Give a description to the port for identification. Statu s: Allows you to Enable/Dis able the port. When Enable is selected, the port can forward the packet s normally . Speed and Duplex: Select the S peed and Duplex mode for the port. The device connected to the switch s hould be in the same S peed and Duplex mode with the switch. Whe[...]

Figure 5-2 Mirroring Port The following ent ries are displ ayed 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 port s. Operation: Click Edit to configure the mirror group. Click Edit to display t he f[...]

Figure 5-3 Mirroring Port The following ent ries are displ ayed 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 yo[...]

enable d, the outgoing packet s 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: 1. The LAG member can not be selected as the mirrored port or mirroring port. 2. A port can not be set as the mirrore[...]

Figure 5-4 Port Security The following ent ries are displ ayed 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: S pecify the maximum number of MAC addresses that can be learned on the port. Learned Num: Displays the number of MA[...]

Note: 1. The Port Security function is disabled for the LAG port member . Only the p ort is removed from the LAG , will the Port Security function be available for the port. 2. The Port Security function is dis abled when the 802.1X function is enabled. 5.1.4 Port Isolation Port Isolation provides a method of restricting traffic flow to improve the[...]

For ward 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 [...]

Figure 5-6 LAG T able The following ent ries are displ ayed on this screen:  Global Config Hash Algorithm: Select the applied scope of Aggregate Arithmetic, which results in choosing a port to transfer the p ackets.  SRC MAC + DST MAC: When this option is selected, the Aggregate Arithmetic w ill apply to the source and destination MAC address[...]

Figure 5-7 Detail Information 5.2.2 St atic LAG On this page, you can manually c onfigure the LAG . The LACP feat ure is disabled for the member ports of the manually added S tatic LAG . Choose the menu Sw it chin g → LAG → St atic LAG to load the following page. Figure 5-8 Manually Config The following ent ries are displ ayed on this screen: ?[...]

Description: Give a description to the LAG for identification.  LAG T able Member Port: Select the p ort as the LAG member . Clearing all the ports o f the LAG will delete this LAG . Tips: 1. The LAG can be deleted by clearing its all member ports. 2. A port can only be added to a LAG . If a port is the member of a LAG or is dynamically aggregat[...]

Figure 5-9 LACP Config The following ent ries are displ ayed on this screen:  Global Config System Priority : S pecify a System Priority for t he port. The System Priority and the Admin Key constitute the aggregation ID. A dynamic aggregation group will only be formed between por ts having the same aggregation ID.  LACP Config Port Select: Cl[...]

preferr ed one. If the two port pr iorities are equal; the port with smaller port number is preferred. Statu s: Enable/Disable the LACP feat ure for your selected port. LAG: Displays the LAG number which the port belongs to. 5.3 T raffic Monitor The T raf fic Monitor function, monitoring the traffic of each p ort, is implemented on the Tr a f f i c[...]

 T raffic Summary Port Select: Click the Sele ct button to quick-select the corresponding port based on the port number you entered. Port: Displays the port numbe r . Packets Rx: Displays the number of packet s received on the port. The erro r packet s are not counted in. Packets Tx: Displays the number of packet s transmitted on the port. Octet[...]

automatically . Refresh Rate: Enter a value in seconds to specify the refresh interval.  St atistics 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 p ackets received on the port. Sent: Displays the details of the pa ckets transmitted on the por[...]

switch to reduce broadcast packets and enhance the efficiency of packets forwarding remarkably. The address filtering feature allo ws 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 T able ar e listed as the following: Ty p e Configuration W ay[...]

Figure 5-12 Address T able The following ent ries are displ ayed 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 . Ty p e : Select the type of your desired entry .  All: This option allo[...]

MAC Address: Displays the MAC addres s learned by the switch. VLAN ID: Displays the corresponding VLAN ID of the MAC address. Port: Displays the correspondi ng Port number of the MAC address. Ty p e : Displays the T ype of the MAC addres s. Aging St atus: Displays the Aging status of the MAC address. 5.4.2 St atic Address The static address t able [...]

Search Option: Select a Search Option from the pull- down list and click the Search button to find your desired entry in the S tatic Address T able.  MAC: Enter the MAC address of your desired entry .  VLAN ID: Enter the VLAN ID number of your desired entry .  Port: Enter the Port number of your desired entry .  St atic Address T able S[...]

Figure 5-14 Dynamic Address The following ent ries are displ ayed on this screen:  Aging Config Auto Aging: Allows you to Enable/Disable t he Auto Aging feature. Aging Time: Enter the Aging T ime 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 desir[...]

Select: Select the entry to delete the dy namic 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 correspondi ng por t number of the MAC address. Ty p e : Displays the T ype [...]

51 The following ent ries are displ ayed 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 [...]

Chapter 6 VLAN The traditional Ethernet is a data network comm unication technology basi ng on CSMA/CD (Ca rrier Sense Multiple Access/Collision Detect) vi a shared communication medium. Through the traditional Ethernet, the overfull hosts in LAN will result in serious collis ion, flooding broadcasts, poor performance or even break down of the Inte[...]

VLANs. The switch can analyze the received unt agged p ackets on the port and match the packe ts 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 packet s are necessary for the sw itch to identify pac[...]

（ 2 ） TRUNK : The TRUNK port can be added in multiple VL ANs, and the egress rule of the port is T AG . 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 p ackets are forwarded by the TRUNK port, it s VLAN tag will n ot be changed. （ 3 ） GENERAL: T[...]

IEEE 802.1Q VLAN functi on is implemented on the VLAN Config and Port Config p ages. 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 T able T o ensure the normal communication of the factory sw itch, the default VLAN of all[...]

Figure 6-4 Create or Modify 802.1Q VLAN The following ent ries are displ ayed 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.  VLAN Members Port Select: Click the Select but[...]

Egress Rule : Select the Egress Rule for the VLAN port member . The default egress rule is UNT AG .  T AG: All packe ts forwarded by the port are tagged. The packet s contain VLAN information.  UNT AG: Packets forwarded by the port LAG: Displays the LAG to which the port belongs. 6.1.2 Port Config Before creating the 802.1Q VLAN, please acqua[...]

Link T ype: Select the Link T ype from t he pull-down list for the port.  ACCESS: The ACCESS port c an be added in a single VLAN, and the egress rule of the port is UNT AG . The PVID is same as the current VLAN ID. If t he current VLAN is deleted, the PVID will be set to 1 by default.  TRUNK: The TRUNK port c an be added in multiple VLANs, an[...]

2 Create VLAN. Required. On the VLAN → 802.1Q VLAN → VLAN Config page, click the Create button to create a VLAN. Enter the VLAN ID a nd the description for the VLAN. Meanwhile, specify its member ports. 3 Modify/View VLAN. Optional. On the VLAN → 802.1Q VLAN → VLAN Config pa ge , click the Edit/Det ail button to modify/view the information [...]

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 ent ries are displ ayed on this screen:  Create Protocol VLAN Protocol: Select the define[...]

Figure 6-8 Create and V iew Protocol T emplate The following ent ries are displ ayed on this screen:  Create Protocol T emplate Protocol Name: Give a name for the Protocol T emplate. Ether T ype: Enter the Ethernet protocol type field in the protocol template.  Protocol T emplate T able Select: Select the desired entry . It is multi-optional.[...]

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: Ste p Operation Description 1 Set the link type for port. Required. On the VLAN → 802.1Q VLAN → Port Config page, set the link type fo r the port basing on its connected device[...]

 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 Ste p Operation Description 1 Configure the Link T ype of the ports Required. On VLAN → 802.1Q VLAN → Port Config page, configure the link type of Port 2, Port 3 and Port[...]

6.4 Application Example for Protocol VLAN  Network Requirements  Department A is connected to the co mpany LAN via Port12 of Switch A;  Department A has IP host and AppleT alk host;  IP host, in VLAN10, is se rved by IP se rver wh ile AppleT alk host is served by AppleT alk server;  Switch B is connected to IP server and AppleT alk s[...]

VLAN with it s VLANID as 10, owning Port 3 and Port 4, and co nfigure the egress rule of Port 3 as Untag. 3 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 co nfigure the egress rule of Port 3 as Untag. 4 Create Protocol Te m p l a t e Required. On VLAN → Pro[...]

 Hold Timer: When a GARP entity receives a piece of registration information, it does not send out a Join message immediatel y. 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. [...]

Figure 6-10 GVRP Co nfig 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 ent ries are displ ayed on this screen:  Global Config GVRP: Allows you to Enable/Disabl e the GVRP function.  Port Config Port Select: Cl[...]

 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/deregiste r VLANs. It only propagates VLAN 1 information. LeaveAll Timer: Once the LeaveAll T imer is set, the port with GVRP enabled can send a LeaveAll message after the ti[...]

Chapter 7 S p anning T r ee STP (S panning T r ee Protocol), su bject to IEEE 802.1 D standard, is to disbra nch a ring network in the Data Link layer in a local netwo rk. Devices running STP discover loops in the network and block ports by exchanging inf ormation, in that way , a ring net work can be disbranch ed to form a tree-topologi cal ring-f[...]

 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 por t 4 is the designated port of swit ch B; port 6 is the blocked port of switch C. Figure 7-1 Basic STP diagram  STP T imers Hello T ime: Hello T ime ranges from 1 to 10 seconds. It specifie s the interval to sen[...]

 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.  Comparing BPDUs Each switch sends out configur ation [...]

Tips ： In a STP with stable top ology , only the root port and designated port can forwa rd data, and the other ports are blocked. The blo cked ports only can receive BPDUs. RSTP (R apid S pann ing T ree P ro tocol ), evo lve d fr om t he 802 .1D STP standard, enable Ethernet ports to transit their states rapidl y . The premises for the port in t[...]

Figure 7-2 Basic MSTP diagram  MSTP MSTP divides a network into several MST r egions. The CST is generat ed 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 sp anning tree. The only difference is that the BPD U for M[...]

Figure 7-3 Port roles The S panning T ree 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. 7.1.1[...]

Figure 7-4 STP Config The following entries are displayed on this screen:  Global Config STP: Select Enable/Disable STP func tion globally on the switch. V ersion: Select the desired STP version on the switch.  STP: S panning T ree Protocol.  RSTP: Rapid S panning T ree Protocol.  MSTP: Multiple S panning T ree Protocol.  Parameters [...]

that occur in a specific region before the BPDU is discarded. The default value is 20 hops. Note: 1. The forward delay parameter and the network diameter are correlated. A t oo small forward delay parameter may result in temporary loops. A too large forward delay may cau se a network unable to resume the normal state in time. The default value is r[...]

Figure 7-5 STP Summary 7.2 Port Config On this page you can c onfigure the parameters of t he ports for CIST Choose the menu Sp anning T ree → Port Config to load the following page. 77[...]

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 p ort based on the port number you entered. Select: Select the desired port for STP conf iguration. It is multi-optional. Port: Displays the port number of the switch. Statu s: Select Enab[...]

this bridge to the Root Bridge an d forwards packets to the root.  Designated Port: Indicates the port that forwards packet s to a downstream network segment or switch.  Master Port: Indicates the port that connects a MST region to the common root. The path fr om the master port to the common root is the shortest path between this MST region [...]

Figure 7-7 Region Config The following entries are displayed on this screen:  Region Config Region Name: Create a na me for MST region identif ication 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 regi on, is used to describe [...]

The following entries are displayed on this screen:  Inst ance T able Inst ance ID Select: Click the Select button to quick-se lect the corresponding Instance ID based on the ID number you entered. Select: Select the desired Instance ID for c onfiguration. It is multi-optional. Inst ance: Displays Instance ID of th e switch. Statu s: Select Enab[...]

Figure 7-9 Instance Port Config The following entries are displayed on this screen:  Port Config Inst ance ID: Select the desired instance ID fo r its port configuration. Port Select: Click the Select button to quick-select the corresponding p ort based on the port number you entered. Select: Select the desired port to specify its priority and p[...]

Note: The port status of one port in dif ferent spanning tree instances can be dif ferent. Global configuration Procedure for S panning T ree function: Ste p Operation Description 1 Make clear roles the switches play in spanning tree instances: root bridge or designated bridge Preparation. 2 Globally configure MSTP parameters Required. Enable S pan[...]

A CIST and its secondary root bridges are usually located in the high-bandwidth core region. Wrong configuration or malicious attacks may resu lt in configuration BPD U p ackets with higher priorities being received by the legal root bridge, which causes the cu rrent legal root bridge to lose its position and network topology jitter to occur . In t[...]

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 p ort based on the port number you entered. Select: Select the desired port for port protect configuration. It is multi-optional. Port: Displays the port number of the switch. Loop Prot[...]

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 Sp anning T ree → STP Security → TC Protect to load the following p age. Figure 7-1 1 TC Protect The following entries are displayed on this screen:  TC Protect TC Threshold:[...]

7.5 Application Example for STP Function  Network Requirements  Switch A, B, C, D and E all support MSTP function.  A is the central switch.  B and C are switches in the convergence layer . D, E and F are switches in the access layer .  There are 6 VLANs labeled as VLAN101-VLAN106 in the network.  All switches run MSTP an d bel on[...]

 Configure Switch B: Ste p Operation Description 1 Configure ports On VLAN → 802.1Q VLAN page, configure the link type of the related ports as T runk, and add t he ports to VLAN 101 and VLAN 106. The detailed instructions can be found in the section 802.1Q VLAN . 2 Enable STP function On Spannin g T ree → STP Config → STP Config page, enab[...]

 Configure Switch D: Ste p Operation Description 1 Configure ports On VLAN → 802.1Q VLAN page, configure the link type of the related ports as T runk, and add t he ports to VLAN 101 and VLAN 106. The detailed instructions can be found in the section 802.1Q VLAN . 2 Enable STP function On Spannin g T ree → STP Config → STP Config page, enab[...]

 Suggestion for Configuration  Enable TC Protect functio n for all the ports of switches.  Enable Root Protect function for a ll the ports of root bridges.  Enable Loop Protect function for the non-edge ports. Enable BPDU Protect function or BPDU Filter func tion for the edge ports which are connected to the PC and server . Return to CO[...]

Chapter 8 Multicast  Multicast Overview In the network, packet s are sent in three modes: unicast, broadcas t and multicast. In unicast, the source server sends separate copy information to each receiver . When a large numbe r of users require this information, the serv er must send many pieces of info rmation with the same content to the users.[...]

1. Multicast IP Address: As specified by IANA (Internet Assigned Numbe rs Authority), Class D IP addresses are used as destination addresses of multic ast 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. Multicast IP address ra[...]

 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) me ssages. When the up-str eam device forwards down the multicast data, the switch is responsible for sending them to the host s. IG MP S no op ing is a multicast contr ol mechanism, whic [...]

The host, running IGMPv1, does not send IGMP l eave 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 [...]

Figure 8-4 Basic Config The following entries are displayed on this screen:  Global Config IGMP Snooping: Select Enable/Disable IGMP S nooping function globally on the Switch. Unknown Multicast: Select the operation for the swit ch to process unknown multicast, Forward or Discard.  IGMP Snooping S t atus Description: Displays IGMP Snooping st[...]

Figure 8-5 Port Config The following entries are displayed on this screen:  Port Config Port Select: Click the Select button to qui ck-select the corresponding port based on the port number you entered. Select: Select the desired port for IGMP Snooping feature conf iguration. It is multi-optional. Port: Displays the port of the Switch. IGMP Snoo[...]

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: S pecify the aging time of the router port. Within this time, if the switch does[...]

Select: Select the desired VLAN ID for conf iguration. It is multi-optional. VLAN ID: Displays the VLAN ID. Router Port Time: Displays the router port time of the VLAN. Member Port T ime: 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 [...]

Figure 8-7 Multicast VLAN The following entries are displayed on this screen:  Multicast VLAN Multicast VLAN: Select Enable/Disable Mult icast VLAN feature. VLAN ID: Enter the VLAN ID of the multicast VLAN. Router Port Time: S pecify the aging time of the router port. Within this time, if the switch doesn’t receive IGMP query message from the [...]

5. After a multicast VLAN is created, all the IGMP p ackets will be processed only within the multicast VLAN. Configuration procedure: Ste p Operation Description 1 Enable IGMP Snooping function Required. Enable IGMP Snooping globally on the switch and for the port on Multicast → IGMP Snooping → Snooping Config and Port Config page. 2 Create a [...]

 Configuration Procedure Ste p Operation Description 1 Create VLANs Create thre e VLANs with the VLAN ID 3, 4 and 5 respectively , and specify the description of VL AN3 as Multicast VLAN on VLAN → 802.1Q VLAN page. 2 Configure ports On VLAN → 802.1Q VLAN function pages. For port 3, configure its link type as GENERAL and its egress rule as T [...]

8.2.1 Multicast IP T able On this page you can view the multicast IP table on the switch. Choose the menu Multicast → Multicast IP → Multicast IP T able to load the following page. Figure 8-8 Multicast IP T able The following entries are displayed on this screen:  Search Option Multicast IP: Enter the multicast IP address the desired entry m[...]

Choose the menu Multicast → Multicast IP → St atic Multicast IP to load the following page. Figure 8-9 S tatic Multicast IP T able The following entries are displayed on this screen:  Create St ati c Multicast Multicast IP: Enter static multicast IP address. VLAN ID: Enter the VLAN ID of the multicast IP . Forward Port: Enter the forward por[...]

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[...]

S t art Multicast IP: Displays st art 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 t he multicast filter rules for port. T ake the configuration on this page and the configuration on IP-R ange page together to fu nction to implement multicast filter funct[...]

Max Group s: S pecify the maximum number of mu lticast groups to prevent some ports taking up too much bandwidth. LAG: Displays the LAG number wh ich the port belongs to. Note: 1. Multicast Filter feature can only have effect on the VLAN with IGMP Snooping enabled. 2. Multicast Filter feature has no effect o n static multicast IP . 3. Up to 15 IP-R[...]

 Auto Refresh Auto Refresh: Select Enable/Disable aut o refresh feature. Refresh Period: Enter the time from 3 to 300 in se conds to specify the auto refresh period.  IGMP S t atistics Port Select: Click the Select button to qui ck-select the corresponding port based on the port number you entered. Port: Displays the port number of the switch[...]

Chapter 9 QoS QoS (Quality of Service) functi ons to provide different quality of service for various network applications and requirements and optim ize the bandwidth resource dist ribution so as to provide a network service experience of a better quality .  QoS This switch classifies the ingr ess packets, map s the packe ts to dif ferent prior[...]

Figure 9-2 802.1Q frame As shown in the figure above, each 802.1Q T ag ha s 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 determi nes the priority of the packets based on the Pri value. On the Web management page of the switch, you can configure dif ferent priority tags mapping t[...]

Figure 9-4 SP-Mode 2. WRR-Mode: Weight Round Robin Mode. In this mode, packet s 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 i[...]

The QoS module is mainly for traf fic control and priority configuration, including three submenus: DiffServ , Bandwidth Control and V oice VLAN . 9.1 DiffServ This switch classifies the ingr ess packets, map s the packe ts to dif ferent priority queues and then fo rwa rd s t he pac ke ts ac co rdi ng to sp eci f ied scheduling algorit hms to imple[...]

Note: T o complete QoS function confi guration, you have to go to the Schedule Mode page to select a schedule mode after the configur ation is finishe d on this page. Configuration Procedure: Ste p Operation Description 1 Log on to the Port Priority page 2 Select the desired ports for configuration Select the desired ports. It is multi-optional. 3 [...]

SP+WRR-M ode: S trict-Priority + Weight Round R obin 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 queu es inside WRR group follow the WRR mode. In SP+WRR mode, TC3 is in the SP group; TC0, TC1 and TC2 belong to [...]

Priority Level: Indicates the priority level the packets with t ag are mapped to. The priority levels are labeled as TC0, TC1, TC2 and TC3. Note: T o complete QoS function confi guration, you have to go to the Schedule Mode page to select a schedule mode after the configur ation is finishe d on this page. Configuration Procedure: Ste p Operation De[...]

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 t ag are mappe[...]

3 Map the DSCP priority to the priority level Required. Select DSCP priority and the corresponding priority level. 4 Select a schedule mode Required. Log on to th e Schedule Mode page to select a schedule mode. 9.2 Bandwid th Control Bandwidth function, allowing you to control the traffic rate an d broadcast flow on each port to ensure network in w[...]

Select: Select the desired port for Rate conf iguration. It is multi-optional. Port: Displays the port number of the Switch. Ingress Rate(Kbps): Configure th e bandwidth for receiving packets on the port. Y ou can select a rate from the dropdown list or select "Manual" to set Ingress rate, the system will automatically select integral mul[...]

Figure 9-1 1 S torm 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 S tor m Control configuration. It is multi-optional. Port: Displays the port number of the Swit[...]

configuration for voice data, ens uring 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 configu[...]

Port V oice VLAN Mode V oice Stream T ype Link type of the port and processing mode ACCESS: Not supported. TRUNK: Supported. The default VL AN of the port can not be voice VLAN. TA G v o i c e stream GENERAL: Supported. The defaul t VLAN of the port can not be voice VLAN and the egress rule of the access port in the voice VLAN should be T AG . ACCE[...]

The following entries are displayed on this screen:  Global Config V oice VLAN: Select Enable/Disable V oice VLAN function. VLAN ID: Enter the VLAN ID of the voice VLAN. Aging Time: S pecifies the living time of the member port in auto mode after the OUI address is aging out. 9.3.2 Port Config Before the voice VLAN function is enabled, the param[...]

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 vo ice VLAN configuration. It is multi-optional. Port: Displays the port number of the Switch. Port Mode: Select the mode for the po[...]

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 T able Select: Select the desired entry to view the detailed information. OUI: Displays the OUI address of the[...]

Chapter 10 ACL ACL (Access Control List) is used to filter packe ts by configuring match rules and process policie s of packet s in order to control the access of the illegal users to the network. Besides, ACL functions to control traffic flows and save network resource s. It provides a flex ible and secured access control policy and facilitates yo[...]

10.1.2 T ime-Range Create On this page you can create time-ranges. Choose the menu ACL → Time-Range → Time-Range Create to load the following p age. Figure 10-2 T ime-Range Create Note: T o successfully configure time -ranges, please firstly specify ti me-slices and then time-ranges. The following entries are displayed on this screen:  Creat[...]

End T ime: Displays the end time of the time-slice. Delete: Click the Delete button to delet e the corresponding time-slice. 10.1.3 Holiday Config Holiday mode is applied as a different secured a ccess control policy from the week mode. On this page you can define holidays according to your work arrangement. Choose the menu ACL → Time-Range → H[...]

The ACL C onfig functi on can be implemented on ACL Summary , ACL Create , MAC ACL , Stand ar d -I P AC L and Extend-IP ACL pages. 10.2.1 ACL Summar y On this page, you can view the curr ent ACLs configured in the switch. Choose the menu ACL → ACL Config → ACL Summary to load the following page. Figure 10-4 ACL Summa ry The following entries ar[...]

The following entries are displayed on this screen:  Create ACL ACL ID: Enter ACL ID of the ACL y ou 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 packet s based on a se ries of match conditi ons, which can be the source MAC addresses, destination MAC addresse s, V[...]

EtherT ype: Enter EtherT ype contained in the rule. User Priority: Select the user priority contained in the rule for the tagged p ackets to match. Time-Range: Select the time-range for t he rule to take ef fect. 10.2.4 S tandard-IP ACL S tandard-IP ACLs analyz e and process data packet s based on a series of ma tch conditions, which can be the sou[...]

10.2.5 Extend-IP ACL Extend-IP ACLs analyze and process data p acket s based on a series of ma tch conditions, which can be the source IP addresses, destination IP addre sses, IP protocol and other information of this sort carried in the packe ts. Choose the menu ACL → ACL Config → Extend-IP ACL to load the following p age. Figure 10-8 Create E[...]

D-Port: Configur e TCP/IP destination por t contained in the rule when TCP/UDP is selected from the pu ll-down list of IP Protocol. DSCP: Enter the DSCP information contained in the rule. Time-Range: Select the time-range for t he rule to take ef fect. 10.3 Policy Config A Policy is used to control the dat a packet s those match the corresponding A[...]

Operation: Click the Edit button to modify the action. Choose the menu ACL → Policy Config → Policy Create to load the following page. 10.3.2 Policy Create On this page you can create the policy . Figure 10-10 Create Policy ies are displayed on this screen:  Policy Name: Enter the name of the policy . Choose the menu ACL → Policy Config ?[...]

Select ACL: S-Mirror: ror to mirror the data pa cket s in the policy to the specific S-Condition:  Out of Band: S pecify the disposal way of the data packet s those Redirect:  Destination Port: Forward the data p acket s those match the corresponding ACL to the specific port. s and process them based on the policy only when the policy is boun[...]

Index: Displays the index of the binding p olicy . Policy Name: AN ID bound to the policy . Displays the binding direction. Choose the menu ACL → Policy Binding → Port Binding to load the following p age. Displays the name of the binding p olicy . Interface: Displays the port number or VL Direction: 10.4.2 Port Binding On this page you can bind[...]

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 po licy you want to bind. VLAN ID: Enter the ID of the VLAN you want to bind.  VLAN-Bind T able Index: Displays the index of the binding policy . Policy Name: Displays the name of the binding polic[...]

3. The st af f 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 dep artment and mark eting department can not communicate with each other .  Network Diagram  Configuration Procedure Ste p Operation Description 1 Configure T ime-range On ACL → Time-Range page, [...]

3 Configur e for requirement 2 and 4 On ACL → ACL Config → ACL Create page, create ACL 100. On ACL → ACL Config → S t andard-IP ACL p age, select ACL 100, create Rule 1, configure operatio n 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, configur e the time-range[...]

Chapter 11 Network Security Network Security module is to provide the multip le protection measures fo r the network security , including five submenus: IP-MAC Binding , ARP Inspection , DoS Defend and 802.1X . Please configure the functions ap propriate to your need. 11.1 IP-MAC Binding The IP-MAC Binding function allows you to bind the IP address[...]

Th e following ent ries are displ ayed 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 T able.  All: All the bound entries will be displayed.  Manual: Only the manually added entries will be displayed.  Scanning: Only the entries formed [...]

Figure 1 1-2 Manual Bindi ng The following ent ries are displ ayed 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. Port: Select the number of por t connected to the Host. Protect T ype: Select the Prote[...]

11.1.3 ARP Scanning ARP (Address Resolution Protocol) is u sed to analyze and map IP addresses to the corresponding MAC addresses so that p ackets 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 [...]

Figure 1 1-4 ARP Scanning The following ent ries are displ ayed on this screen:  Scanning Option St art IP Address: S pecify the S tart IP Address. End IP Address: S pecify the End IP Address. VLAN ID: Enter the VLAN ID. If blank, the switch will send the unt agged packet s for scanning. Scan: Click the Scan button to scan the Host s in the LAN.[...]

network conf iguration pr ot ocol optimized and developed basing on the BOOTP , functions to solve the above mentioned problems.  DHCP W orking 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 C[...]

Figure 1 1-6 Interaction between a DH CP client and a DHCP server （ 1 ） DHCP-DISCOVER St age: The Client broadcasts the DHCP-DISCOVER packet to find the DHCP Server . （ 2 ） DHCP-OFFE R St age: Upon rec eiving the DHCP-DISCOVER packet, the DHCP Serve r selects an IP address from the IP pool according to the assigning priority of the IP addre[...]

Option 82 c an contain 255 sub-options at most. If Option 82 is defined, at least a sub-option should be defined. This Switch s upports two sub-options: Circuit ID and Remote ID. Since there is no universal standard about the content of Op tion 82, different manufacturers define the sub-options of Option 82 to their need. For this Switch, the sub-o[...]

Choose the menu Net work Security → IP-MAC Binding → Binding T able to load the following page. Figure 1 1-8 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 port s are the same. The following ent ries are displ ayed on this screen:  DHCP Snooping [...]

DHCP Snooping: Enable/Disable the DHCP Snooping function globally . Global Flow Control: Select the value to specif y 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 minimu m transmission rate of the Decline packets to tr[...]

11.2 ARP Inspection According to the ARP Implement ation Procedure stated in 1 1.1.3 ARP Scanning , it can be found that ARP protocol can facilit ate the Hosts in t he same network segment to communicate with one another or access to external network via Gatewa y . However , since ARP p rotocol is implemented with the premise that all the Hosts and[...]

Figure 1 1-10 ARP Attack – Cheating Gateway As the above figure shown, the at tacker sends the fake ARP p ackets of H ost A to the Gateway , and then the Gateway will automatically update its ARP table after receiving the ARP packet s. When the Gateway tries to communicate with Ho st A in LAN, it will encapsulate this false destination MAC addres[...]

Figure 1 1-1 1 ARP Attack – Cheating T erminal Hosts As the above figure shown, the atta cker sends the fake ARP p acket s of Host A to Host B, and then Host B will automatically update its ARP table afte r receiving the ARP p ackets. When Host B tries to communicate with Host A, it will encapsulat e this false destination MAC address for packets[...]

Figure 1 1-12 Man-In-The-Middle Attack Suppose there are three Hosts in LAN connec ted with one another through a switch. Host A: IP ad dress is 192.168.0.101; MAC address is 00-00-00-1 1-1 1-1 1. Host B: IP address is 19 2.168.0. 102; MAC address is 00-00-00-22-22-2 2. Attacker: IP address is 192.168.0.103; MAC address is 00-00-00-33-33- 33. 1. Fi[...]

The IP-MAC Binding fun ction allows the switch to bind the IP address, MAC address, VLAN ID and the connected Port number of the Host together when the Ho st connects to the switch. Basing on the predefined IP-MAC Binding ent ries, the ARP Inspection functi ons to detect the ARP packet s and filter the illegal ARP p acket so as to prevent the netwo[...]

Configuration Procedure: Ste p Operation Description 1 Bind the IP address, MAC address, VLAN ID and the connected Port number of the Host together . Required. On the IP-MAC Binding page, bind the IP address, MAC address, VLAN ID and the connected Port number of the Host together via Manual Binding, ARP Scanning or DHCP Snooping. 2 Enable the prote[...]

Th e following ent ries are displ ayed on this screen:  ARP Defend Port Select: Click the Select button to quick-se lect the corresponding port based on the port number you entered. Select: Select your desired port for confi guration. It is multi-optional. Port: Displays the port number . Defend: Select Enable/Disable the ARP Defend feature for [...]

Figure 1 1-15 ARP S tatistics The following ent ries are displ ayed on this screen:  Auto Refresh Auto Refresh: Enable/Disable the Auto Refresh feature. Refresh Interval: S pecify the refresh interval to display the ARP S tatistics.  Illegal ARP Packet Port: Displays the port number . T rusted Port: Indicates the port is an ARP T rusted Port [...]

DoS Att ack T ype Description Scan SYNFI N T he attacker sends the packet with it s SYN field and the FIN field set to 1. The SYN field is used to requ est 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. Xmascan The attacker [...]

DoS Protection: Allows you to Enable/Dis able DoS De fend function.  Defend T able Select: Select the entry to enable the corresponding Defend T ype. Defend T ype: Displays the Defend T ype name. Tips: Y ou are suggested to take the following furt her steps to ensure the network security . 1. It’ s recommended to inspect and repair the system [...]

supplicant system. Note that the client program must support the 802.1X authentication protocol. （ 2 ） Authenticator S ystem: The authenticator system is usually an 802.1X-supported netwo rk device, such as this TP-LIN K switch. It provides the phy sical or logical port for the supplicant system to access the LAN and authenticates the sup plica[...]

Switch Supplicant System EAP Authentication Server EAP EAP-Success RADIUS-Access-Accept EAP-Response/Identity RADIUS-Access-Req uest EAP-Request RADIUS-Access-Request EAP-Response RADIUS-Access-Challenge EAPOL - St a r t EAP-Request/Identity Figure 1 1-18 EAP-MD5 Authentication Procedure 1. A supplicant system launc hes an 802.1X client program vi [...]

In this mode, p acket transmission is terminated at authenticator systems and the EAP p ackets are mapped into RADIUS packets. Authentication and accounting are accomplished through RADIUS protocol. In this mode, P AP or CHAP is employed between the switch and the RADIUS server . This switch supports the P AP termin ating m ode. The authentication [...]

authenticated. But they need to be authenticated before accessing ex ternal resources. After passing the authentication, the port s will be removed from the Guest VLAN and be allowed to access the other resources. With the Guest VLAN function enabl ed, users can access the Guest VL AN to install 802.1X client program or upgrade their 802.1x c lient[...]

exchan ge information between the switch and the client. The EAP protocol packe ts with 　 authentication data can be encapsulated in th e advanced protocol (such as RADIUS) packets to b e transmitted to the authentication server .  PA P : IEEE 802.1X authentication system uses extensible authenticati on protocol (EAP) to exchange information b[...]

Figure 1 1-21 Port Config The following ent ries are displ ayed 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 confi guration. It is multi-optional. Port: Displays the port numbe r . Statu s: Select Enable/Disable [...]

Authorized: Displays the authenticati on st atu s of the port. LAG: Displays the LAG to which the port belongs to. 11.4.3 Radius Server RADIUS (Remote Authentic ation Dial-In User Service) server provides the aut hentication service for the switch via the stored client information, such as the user name, password, etc, with the purpose to control t[...]

Note: 1. The 802.1X function takes ef fect only when it is enabled globally on the switch and for th e 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. The 802.1X function should not be enabled for the p ort connecte d to the authentication server [...]

Chapter 12 SNMP  SNMP Overvie w SNMP (Simple Network Management Protocol) has gained the most extens ive application on the UDP/IP networks. SNMP provides a managem ent frame to monitor and maintain the network devices. It is used for automatica lly managing the various network devices no matter the physical differences of the devices. Curr entl[...]

SNMP v1: SNMP v1 adopts Community Name authentic ation. The community name is used to define the relation between SNMP Management S tation and SNMP Agent. The SNMP packe ts failing to pass community name authentication are discarded. The community name can limit access to SNMP Agent from SNMP NMS, functioning as a p assword. SNMP v2c: SNMP v2c also[...]

The User is configured in a SNMP Group can manage the switch via the client program on management station. The specif ied User Name and the Auth/Privacy Password are used for SNMP Management S tation to access the SNMP Agent, functioning as the pa ssword. SNMP module is used to configure the SNMP f unction of the switch, including three submenus: S[...]

Note: The amount of Engine ID c haracters must be even. 12.1.2 SNMP V iew The OID (Object Identifier) of t he 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. Choose the menu SNMP → S[...]

12.1.3 SNMP Group On this page, you can co nfigure SNMP Group to control the network access by providing the users in various groups with different management right s 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 ent ries are disp[...]

writing only and changes can be made to the a ssigned SNMP View . The View defined both as the Read View and the Write View can be read and modified. Notify V iew: Select the View to be the Notify V iew . The management station can receive notification messages of the assigned SNMP view generated by the Switch's SNMP agent.  Group T able Se[...]

Figure 12-6 SNMP User The following ent ries are displ ayed on this screen:  User Config User Name: Enter the User Name here. User T ype: Select the type for the User .  Local User: Indicates that the user is connected to a local SNMP engine.  Remote User: Indicates that the user is connected to a remote SNMP engine. Group Name: Select the[...]

 User T able Select: Select the d esired entry to del ete the corresponding User . It is multi-optional. User Name: Displays the name of the User . User T ype: Displays the User T ype. Group Name: Displays the Group Name of the User . Security Model: Displays the Security Model of the User . Security Level: Displays the Security Level of the Use[...]

 read-onl y: 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 Comm unity is read-write and changes can be made to the correspondin g View. MIB Vie w: Select the MIB V iew for the community to access.  Community T able Select: Select the [...]

2 Create SNMP View . Required. On the SNMP → SNMP Config → SNMP View page, create SNMP V iew of the management agent. The default View Name is viewDefault and the default OID is 1. Create SNMP Community directly . 3 Configure access level for the User . Create SNMP Group and SNMP User . Required alternatively .  Create SNMP Community directl[...]

Figure 12-8 Notification Config The following ent ries are displ ayed on this screen:  Create Notification IP Address: Enter the IP Address of the management Host. UDP Port: Enter the number of the UDP por t used to send notifications. The UDP port functions with the IP address for the notification sending. The default is 162. User: Enter the Us[...]

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 us ed to send notifications. User: Displays the User name of the management station. Security Model: Displays the Security Model of the management station. Security Level: Displ[...]

The RMON Groups can be configured on the Histor y Control, Event Config and Alarm Config pages. 12.3.1 History Control On this page, you can confi gure the History Group for RMON. Choose the menu SNMP → RMON → History Control to load the following page. Figure 12-9 History Control The following ent ries are displ ayed on this screen:  Histor[...]

Figure 12-10 Event Config The following ent ries are displ ayed on this screen:  Event T able 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. Description: Give a description to the event for identification. Ty p e : S[...]

Figure 12-1 1 Alarm Config The following ent ries are displ ayed on this screen:  Alarm T able Select: Select the desired entry for configuratio n. Index: Displays the index number of the entry . Va r i a b l e : Select the alarm variable s form the pull-sown list. Port: Select the port on which the Alarm entry acts. Sample T ype: S pecify the s[...]

Interval: Enter the alarm interv al time in seconds. Ow ne r: Enter the name of the device or user that defined the entry . Statu s: Select Enable/Disable t he 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, tha[...]

Chapter 13 Cluster With the development of network technology , the network scale is getting larger and more networ k devices are required, which may result in a mo re complicated network m anagement system. As a large number of devices need to be assigned diff erent network addresses and every management device needs to be respectively configured [...]

 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 mem ber switch becomes to be the candidate switch.  The commander switch becomes to be the candidat e s[...]

The following entries are displayed on this screen:  Neighbor Search Option: Select the information the desir ed e ntry 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. Remote Port: Displays the port num[...]

Figure 13-3 NDP Summary The following entries are displayed on this screen:  Global Config NDP: Displays the global NDP st atus (enabled or disabled) for the switch. Aging Time: Displays the period for the neighbor switch to keep the NDP packet s from this switch. Hello Time: Displays the interval to send NDP packet s.  Port St atus Port: Dis[...]

Det ail ： Click the Deta il button to view the complete information collected 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 NDP: S[...]

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 disabl e NDP for the port you select. Note: 1. NDP function is ef fective only when NDP function is enabled globally and for the port. 2. The aging ti[...]

 Device T able Device T ype: Displays the device description collected through NTDP . Device MAC: Displays the MAC address of this device. Cluster Name: Displays the cluster nam e of this device. Role: Displays the role this device plays in the cluster .  Commander: Indicates the dev ice that can configure and manage all the devices in a clus[...]

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 T ime: Displays the interval to co llect topology information. NTDP Hop s: Displays the hop count the sw itch topology collects. NTDP Hop Delay: Displays the time [...]

Port: Displays the port number of the switch. NTDP: Displays NTDP status (e nabled or disabled) of the current port. 13.2.3 NTDP Config On this page you can configure NTDP globally . Choose the menu Cluster → NTDP → NT DP Config to load the following p age. Figure 13-8 NTDP Config The following entries are displayed on this screen:  Global C[...]

NTDP Hop Delay: Enter the time between the switch receiving NTDP request packet s and the switch forwarding NTDP request pa ckets for the first time. Th e default is 200 milliseconds. NTDP Port Delay : Enter the time between the port forwar ding NTDP request p ackets and its adjacent port forwarding NTDP request p ackets over . The default is 20 mi[...]

Cluster: Displays the cluster st atus (enabl ed 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 Cluster: Displays the cluster sta[...]

13.3.2 Cluster Config On this page you can configure the sta tus 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 Configur ation for Candi date Switch The following entries are displayed on this s[...]

Individual: Select this option to change the role of the switch to be individual switch.  For an individual switch, the following page is displayed. Figure 13-14 Cluster Configurat ion for Individual Switch The following entries are displayed on this screen:  Current Role Role: Displays the role the current switch plays in the cluster .  R[...]

Figure 13 -15 Network diagram  Configuration Procedure  Configure the member switch Ste p Operation Description 1 Enable NDP function on the switch and for port 1 On Cluster → NDP → NDP Config p age, enable NDP function. 2 Enable NTDP function on the switch and for port 1 On Cluster → NTDP → N TDP Config page, enable NTDP function. ?[...]

4 Configure the member switch On Cluster → Cluster → Member Config page, select the member switch and click the Manage button to log on to its W eb management page. Or On Cluster → Cluster → Cluster T opolog y page, double-click the switch icon to view its detailed information; click the switch icon and click the Manage button to log on to [...]

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 stat us of the memory and the CPU of switch. （ 2 ） Log: View the configuration parameters of t he switch and find out[...]

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 Memor y Monitor Choose the menu Maintenance → S ystem Monitor → Memory Monitor to load the following page. 198[...]

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 re cord, classify and manage the syst em information effectively , providing powerful support for networ k administrator to monito r network operation and diagnose malf[...]

The Log function is implemented on the Log T able , Local Log , Remote Log and Backup Log pages. 14.2.1 Log T able The switch supports logs output to two directions , namely , log buffer and log file. The information in log buffer will be lost af ter the switch is reboot ed or powered off whereas the information in log file will be kept ef fective [...]

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. Choose the menu Maintenance → Log → Local Log to load the following page. Figure 14-4[...]

Figure 14-5 Log Host The following ent ries are displ ayed on this screen:  Log Host Index: Displays the index of the log host. The switch supports 4 log hosts. Host IP: Configur e the IP for the log host. UDP Port: Displays the UDP port used for receiving/sending log information. Here we use the standard port 514. Severity: Specify the severity[...]

Figure 14-6 Backup Log The following ent ry 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 l og file. Please wait without any operation. 14.3 Device Diagnose This switch provides Cable T est and Loopback functions for dev[...]

Pair: Displays the Pair number . Statu s: Displays the connection status of the cable connected to the port. The test results of the cable in clude normal, close, open, short, impedanc e or unknown. Length: If the connection status is normal, here displays the length range o f the cable. Error: If the connection status is close, open or impedanc e,[...]

Loopback Port: Select the desired port for loopback test. T est: Click the T est button to start the loopback test for the port. 14.4 Network Diagnose This switch provides Ping test and T rac ert test functions for network diagnose. 14.4.1 Ping Ping test function, testing the connectivit y between the switch and one node of the network, facilitates[...]

14.4.2 T racert T racert test function is used to test the connecti vity of the gateways during its journey from the source to destination of the test data. When ma lfunctions occur to the network, you can locate trouble spot of the network with this tracert test. Choose the menu Maintenance → Netw ork Diagnose → T racer t to load the following[...]

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 applicati on 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 file s transfer. If there is something wrong with th[...]

Figure 15-2 Open Hyper T erminal 2 ） The Connection Description Wi ndow 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 . 208[...]

Figure 15-4 Select the port to connect 4 ） Configure the port selected in t he step above shown as the following Figure 15-5 . Configure Bit s per seco nd as 38400, Dat a bit s as 8, Parity as None, Sto p b i ts as 1, Flow control as None, and then click OK . Figure 15-5 Port Settings 3. Download Firmware via booUtil menu T o download firmware to[...]

Figure 15-6 bootUtil Menu As the prompt is displayed for a short time, you are suggested not to release the CTRL-B key until you enter into bootUtil menu after powering on the switch. 3 ） After entering into bootUtil menu, please firstly confi gure the IP parameters of the switch. The format is: ifconfig ip xxx.xxx.xxx.xx x mask 255.255.255.0 gat[...]

When you forget the login user name and passwor d, 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 nam e and password are both admin. Return to CONTENTS 21 1[...]

Appendix A: S pecifications IEEE802.3 10Base-T Ethernet IEEE802.3u 100Base-TX/100Bas e-FX Fast Ethernet IEEE802.3ab 1000Base-T Gigabit Ethernet IEEE802.3z 1000Base- X Gigabit Ethernet IEEE802.3x Flow Control IEEE802.1p Priority IEEE802.1q VLAN Bridge Standards IEEE802.1X Port-based Access Authentication Ethernet: 10Mbps HD ， 20Mbps FD Fast Ethern[...]

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 work ing, refer to the adapter ’s manual if necessary . 1. Configure TCP/IP comp onent 1) On the Windows taskbar , click the Start button, and then click Control Panel . 2) [...]

Figure B-2 5) The following TCP/IP Properties window will display and the IP Address tab is open on this window by default. 214[...]

215 6) 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[...]

Appendix C: 802.1X Client Sof tware In 802.1X mechanism, the supplicant Client s hould be equipped with the corresponding client software complied with 802.1X protocol st andar d for 802.1X authenticati on. When the switch TL-SL3428 works as the authenticator system, please take the following instructions to in stall the TpSupplicant provided on th[...]

Figure C-3 Welcome to the InstallShield Wizard 4. T o continue, choose the destination location for the installation files and click Next on the following screen. Figure C-4 Choose De stination Location By default, the installation files are saved on t he Program Files folder of system disk. Click the Change button to modify the destinati on locati[...]

Figure C-5 Install the Program 6. The Inst allShield Wizard is installing TpSupplicant-V2.0 shown as the following screen. Please wait. Figure C-6 Setup S tatus 7. On the following screen, click Finish to complete the installation. 218[...]

Figure C-7 InstallShield Wizard Complete Note: Please pay attention to the ti ps on the above screen. If you have not installed WinPcap 4.0.2 or the higher version on your computer , the 802.1X Client Softw a re TpSupplicant can not work. It’s recommended to go to http://www .winpcap.org to downl oad the latest version of WinPcap for installation[...]

Figure C-8 Preparing Setup 3. On the continued screen, click Ye s to remove the application from your PC. Figure C-9 Uninstall the Application 4. Click Finish to complete. Figure C-10 Uninstall Complete 1.3 Configuration 1. After completing inst allation, double click the icon to run the TP-LINK 802.1X Client Software. Th e following screen will ap[...]

Figure C-1 1 TP-LINK 802.1X Client Enter the Name and the Passwo rd specified in the Authentic ation Server . The length of Name and Password should be less than 15 characters. 2. Click the Properties button on Figure C-1 1 to load the following screen for configuring the connection prope rties. Figure C-12 Connection Properties Send 802.1X protoco[...]

Auto reconnect af ter timeout: Select this option to allow the Client to automatically start the connection again when it does not re ceive the handshake reply packet s from the switch within a period. 3. T o continue, click Connect button after entering the Name and Passw ord on Figure C-1 1 . Then the following screen will appear to prompt that t[...]

223 FA Q Q1: Why does this error dialog box pop up when star ting up the TP-LINK 802.1X Client Software? A1: It’s because the supported DLL file is missing. Y ou 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. Q2: Is this TP-LINK 802.1X Client Sof[...]

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 informat ion for netwo rk devices, including IP address information, the address of the TFTP se[...]

Generic Multicast Regis tration Protocol (GMRP) GMRP allows network devices to register end stations with multic ast groups. GMRP requires that any participating network devic es 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 gen[...]

La yer 2 Data Link layer in the ISO 7-Layer Data Commun ica tions 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 tr unked link with LACP-c onfigured ports[...]

227 Secure Shell (SSH) A secure replacement for remote access functi ons, including Telnet. SSH can authenticate users with a cryptographic key, and encrypt data c onne ctions between manage ment clients and the switch. Simple Network Management Protocol (SNMP) The application protocol in the Internet suit e of protocols which o ffers network manag[...]