Manuale d’uso / di manutenzione del prodotto TL-SL5428E del fabbricante TP-Link
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TL-SL5428E 24-Port 10/100Mbp s + 4-Port Gigabit JetS t ream L2 Managed Switch REV1.4.0 1910010915.
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.
II Safety Information When product has power button, the power button is one of the wa y to shut off the product; When there is no power button, the only way to co mpletely shut off power is to disconnect the product or the power adapter from the power source.
CONTENTS Package C ontent s ............................................................................................................... ........... 1 Chapter 1 About This Guide ......................................................................
5.1.1 Port C onfig ....................................................................................................... 30 5.1.2 Port Mi rror ........................................................................................................ 31 5.
6.9.1 PVLAN C onfig .................................................................................................. 77 6.9.2 Port C onfig ....................................................................................................... 78 6.10 Application Example for Privat e VLAN .
9.2 Bandwidth C ontrol .................................................................................................... 126 9.2.1 Rate Li mit ....................................................................................................... 126 9.
11 . 3 IP Source Guard ....................................................................................................... 165 11 . 4 DoS Def end .....................................................................................................
VI 14.3 Cluste r ...................................................................................................................... 21 2 14.3.1 Cluster Su mmary ......................................................................................
Package Content s The following items should be found in your box: One TL-SL5428E switch One power cord One console cable Two mounting brackets and other fittings Installation Guid.
Chapter 1 About This Guide This User Guide contains information for se tup and management of TL-SL5428E 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.
Chapter Introduction Chapter 4 System This module is used to co nfigure system properti es of the switch. Here mainly introduces: System Info: Configure the description, system time and network parameters of the switch.
Chapter Introduction Chapter 8 Multicast This modul e is used to configure multic ast function of the switch. Here mainly introduces: IGMP Snooping: Configure global pa rameters of IGMP Snooping function, port propertie s, VLAN and multicast VLAN.
Chapter Introduction Chapter 12 SNMP This module is used to configure SNMP function to provide a management frame to monitor and ma intain the network devices.
Chapter 2 Introduction Thanks for choosing the TL-SL5428E 24-Port 10/100Mbps + 4-Port Gigabit JetStream L2 Managed Switch! 2.1 Overview of the Switch Designed for workgroups and department s, TL-S L5428E from TP-LINK provides wire-speed performance and full set of layer 2 management featur es.
Manageabilit y + IP Clustering provides high sca lability and easy Single-IP-Management. + Supports T elnet, CLI, SNMP v1/v 2c/v3, RMON and web access. + Port Mirroring enables monitoring selected ingress/egress traffic. 2.3 Appearance Description 2.
2.3.2 Rear Panel The rear panel of TL-SL5428E features a power socket and a Gr ounding T erminal (marked with ). Figure 2-2 Rear Panel Grounding T erminal: TL-SL5428E already comes with Lightning Protection Mechanism. Y ou can also ground the switch through the PE (Protecti ng Earth) cable of AC cord or with Groun d Cable.
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.
Figure 3-3 Main Setup-Menu Note: Clicking Apply can only make the new conf igurations effective before the switch is rebooted. If you want to keep the configur ations effective even the swit ch is rebooted, please click Save Config .
Chapter 4 System The System module is mainly for system confi guration of the switch, including four submenus: System Info , User Management, System T ools and Access Securit y .
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. Indicates the SFP port is at the speed of 100Mbps. When the cursor moves on the port, the detailed information of the port will be displayed.
4.1.2 Device Description On this page you can configur e the descripti on of the switch, incl uding device nam e, device location and system contact. Choose the menu System → System Info → Device Description to load the following p age.
The followin g entries are displayed on this screen: Tim e In fo 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 .
The followin g entries are displayed on this screen: DST Config DST St atus: Enable or Disable DST . Predefined Mode: Select a predefined DST configuration: USA: Second Sunday in Marc h, 02:00 ~ First Sunday i n November , 02:00. Australia: Fir st Sunday in October , 02:00 ~ First Sunday in April, 03:00.
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. St atic IP: When this option is sele cted, you should enter IP Address, Subnet Mask and Default Gateway manually .
5. By default, the IP address is 192.168.0.1. 4.2 User Management User Management functions to configure the user name and password for users to log on to the Web management p age with a certain access level so as to protect the settings of the switch from being randomly changed.
The followin g 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 different functions. Guest: Guest only can view the setti ngs without the right to edit and modify .
Figure 4-10 Config Restore The following entries are displayed on this screen: Config Restore Restore Config: Click the Restore Config button to restore the backup configuration file. It will take ef fect af ter the switch automatically reboots. Note: 1.
Note: It will take a few minutes to backup the configuration. Pleas e wait without any operation. 4.3.3 Firmware Upgrade The switch system can be upgraded via the Web management p age. T o upgrade the system is to get more functions and be tter performance.
4.3.5 System Reset On this page you can reset the switch to the defaul t. All the settings will be cleared after the switch is reset. Choose the menu System → Sy stem T ools → S ystem Reset to load the following page.
Figure 4-15 Access Control The following entries are displayed on this screen: Access Control Config Control Mode: Select the control mode for us ers to log on to the W e b management page. IP-based: Select this option to limit the IP-range of the users for login.
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. Guest Number: Enter the maximum number of the users logging on to the Web management page as Guest.
The followin g 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.
Figure 4-17 SSH Config The following entries are displayed on this screen: Global Config SSH: Select Enable/Disable SSH function. Protocol V1: Select Enable/Disable SSH V1 to be the supported protocol. Protocol V2: Select Enable/Disable SSH V2 to be the supported protocol.
Application Example 1 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 software is r ecommended. Configuration Procedure 1. Open the software to log on to the interface of PuTTY .
Note: 1. The key len gth is in the range of 256 to 3072 bits. 2. During the key generati on, randomly moving the mouse quickly can acceler ate the key generation. 2. After the key is successfu lly generated, please save the p ublic key and private key to the computer .
3. On the W eb 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.
29 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.
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 .
St atu 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.
Th e following ent ries are displ ayed on this screen. Mirroring Port Mirroring Port: Select a port from the pull-down list as the mirroring port. When disable is selected, the Port Mirror feature will be disabled. Mirrored Port Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered.
Figure 5-3 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.
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 packet s to the ports th at are not on its forward portlist. Choose the menu Sw it chin g → Port → Port Isolation to load the following page.
5.1.5 Loopback Detection With loopback detection feature enabled, the swit ch can detect loops using loopback detection packet s. When a loop is detected, the switch will di splay an alert or further block the corresponding port according to the port configuration.
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 Loopba ck Detection configuration. It is multi-optional. Port: Displays the port number .
If the LAG is needed, you are sugges ted to configure the LAG functi on here b efore configuring the other functions for the member ports. Tips: 1. Calculate the bandwidth for a LAG: If a LAG consists.
Description: Displays the description of LAG . Member: Displays the LAG member . Operation: Allows you to view or modify the information for each LAG . Edit: Click to modify the settings of the LAG . Det ail: Click to get the information of the LAG .
Th e following ent ries are displ ayed on this screen: LAG Config Group Number: Select a Group Number for the LAG . 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 .
Figure 5-9 LACP Config The following ent ries are displ ayed on this screen: Global Config System Priority : S pecify 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 .
St atu 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 Summary and T raffic St atistics pag es .
Packet s Tx: Displays the number of packets transmitted on the port. Octets Rx: Displays the number of octets received on the port. The error octets are counted in. Octet s Tx: Displays the number of octe ts transmitted on the port. St atistics: Click the St atistics button to view the detailed traffic statistics of the port.
Sent: Displays the det ails of the pa ckets transmitted on the port. Broadcast: Displays the number of good broadcast packet s received o r transmitted on the port. The erro r frames are not counted in. Multicast: Displays the number of good mu lticast packets received o r transmitted on the port.
Ty p e Configuration W ay Aging out Being kept af ter reboot (if the configuration is saved) Relationship between the bound MAC address and the port St a t i c Address T able Manually configuring No Y es The bound MAC address can not be learned by the other ports in the same VLAN.
Ty p e : Select the type of your desired entry . All: This option allows the address table to display all the address entries. Stati c: This option allows the address table to display the static address entries only . Dyn am ic: This option allows the address table to display the dynamic address entries only .
Th e following ent ries are displ ayed on this screen: Create St ati c 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.
On this p age, you can configur e the dynamic MAC address entry . Choose the menu Sw it chin g → MAC Address → Dynamic Address to load the following page. 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 featur e.
Bind: C lick the Bind button to bind the MAC address of your selected entry to the corresponding port statically . Tips: Setting aging time properly helps implement effect ive MAC address aging. The aging time that is too long or too short results decreas es the performance of the switch.
49 Filtering Address T able Select: Select the entry to delete the co rresponding filtering address. It is multi-optional. MAC Address: Displays the filtering MAC Address. VLAN ID: Displays the correspondi ng VLAN ID. Port: Here the symbol “__” indicates no specified port.
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.
6.1 802.1Q VLAN VLAN tags in the packet s are necessary for the sw itch to identify packet s 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 packe t only , so you can add the VLAN tag field into the data link la yer encapsulation for identification.
PVID PVID (Port Vlan ID) is the default VID of the port. When the switch receives an un-VLA N-tagged packet, it will add a VLAN tag to the packet according to the PVID of it s received port and forward the packet s.
T o ensure the normal communication of the factory sw itch, the default VLAN of all ports is set to VLAN1. The following ent ries are displ ayed on this screen: VLAN T able VLAN ID Select ： Click the Select button to quick-select the corresponding entry based on the VLAN ID number you entered.
Th e 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.
Figure 6-5 802.1Q VLAN – Port Config The following ent ries are displ ayed on this screen: VLAN Port Config Port Select: Click the Select button to quick-select the corresponding entry based on the port number you entered. Select: Select the desired port for confi guration.
C lick the Detail button to view the information of the corresponding VLAN. Figure 6-6 Vi ew the Current VLAN of Port The following ent ries are displ ayed on this screen: VLAN of Port VLAN ID Select: Click the Select button to quick-select the corresponding entry based on the VLAN ID number you entered.
received p ort. Thus, the packet is assigned aut omatically to the corresponding VLAN for transmission. 2. When receivi ng tagged packet, the switch will process it basing on t he 802.1Q VLAN. If the received port is the member of the VLAN to which the tagged packet belongs, the p acket will be forwarded normally .
6.2.2 Port Enable On this page, you can enable the port for the MAC VLAN feature. Only the port is enabled, can the configured MAC VLAN take effect. Choose the menu VLAN → MAC VLAN → Port Enable to load the following page. Figure 6-8 Enable MAC VLAN for Port Select your desired port for VLAN Mapping functi on.
Protocol T ype T ype value IPX 0x8137 IS-IS 0x8000 LACP 0x8809 802.1X 0x888E T able 6-2 Protocol types in common use The packet in Protocol VLAN is processed in the following way: 1. When receiving an untagged packet, the switch matches the packet with the current Protocol VLAN.
Protocol VLAN T able Select: Select the desired entry . It is multi-optional. Protocol: Displays the protocol template of the VLAN. Ether T ype: Displays the Ethernet protocol type field in the protocol template. VLAN ID: Displays the correspondin g VLAN ID of the protocol.
6.3.3 Port Enable On this page, you can enable the por t for the Protocol VLAN featur e. Only the port is enabled, can the configured Protocol VLAN take ef fect. Choose the menu VLAN → Protocol VLAN → Port Enable to load the following page. Figure 6-1 1 Enable Protocol VLAN for Port Select your desired port for VLAN Mapping functi on.
Switch B is connecting to PC B and Server A; PC A and Server A is in the same VLAN; 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.
6.5 Application Example f or MAC VLAN Network Requirements Switch A and s witch B are c onnected to meeti ng room A and meeti ng room B respectively , and the two rooms are for all departments.
Ste p Operation Description 4 Configure MAC VLAN 10 On VLAN → MAC VLAN → MAC VLAN page, create MAC VLAN10 with the MAC address as 00-19-56-8A-4C-71. 5 Configure MAC VLAN 20 On VLAN → MAC VLAN → MAC VLAN page, create MAC VLAN10 with the MAC address as 00-19-56-82-3B-70.
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 server . Network Diagram Configuration Procedure Configure switch A Ste p Operation Description 1 Configure the Link T ype of the ports Required.
Ste p Operation Description 4 Create Protocol Te m p l a t e Required. On VLAN → Protocol VLAN → Protocol T emplate page, configure the protocol template prac tically . E.g. the Ether T ype of IP network packet s is 0800 and that of AppleT alk network packet s is 809B.
Protocol type Va l u e LACP 0x8809 802.1X 0x888E T able 6-3 V alues of Ethernet frame protocol type in common use This VLAN VPN function is implemented on the VPN Config , VLAN Mapping and Port Enable pages. 6.7.1 VPN Config This page allows you to enable the VPN function, adjust the global TPID for VLAN-VPN packets and enable the VPN up-link port.
Choose the menu VLAN → VLAN VPN → VLAN Mapping to load the following page. Figure 6-13 Create VLAN Mapping Entry The following ent ries are displ ayed on this screen: VLAN Mapping Config C VLAN: Enter the ID number of the Custom er VLAN. C VLAN refers to the VLAN to which the packet received by switch belongs.
Figure 6-14 Enable VLAN Mapping for Port Select your desired port for VLAN Mapping function. All the ports are disabled for VLAN Mapping function by default.
Ste p Operation Description 3 Create SP (Service Provider) VLAN Optional. On the VLAN → 802.1Q VLAN page, create the SP VLAN. For the step s of creating VLAN, please refer to 802.1Q VLAN . 6.8 GVRP GVRP (GARP VLAN Registration Protocol) is an implementation of GA RP (generic attribute registration protocol).
Leave All Timer: Once a GARP entity starts up, it st arts the LeaveAll time r, and sends out a LeaveAll message after the timer times out, so that other GARP entities can re-register all the attribute information on this entit y. After that, the entity rest arts the LeaveAll timer to begin a new cycle.
Figure 6-15 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.
Leave All Timer: Once the LeaveAll T imer is set, the port with GVRP enabled can send a LeaveAll message after the timer ti mes out, so that other GARP ports can re-register all the attribute information. After that, the LeaveAll timer will start to begin a new cycle.
Private VLAN technolog y is mainly used in ca mpus or enterprise networks to achieve user layer-2-separation and to save VL AN resources of uplink devices. The Element s of a Private VLAN Primary VLAN: A Private VLAN has one Primar y VLAN and one Secondary VLAN.
2) Port configuration and MAC address duplication should be synchr onized on the switch. Port configuration synchronization is completed in the whole configuration progress and MAC address duplication is implemented while FDB is changing.
MAC address duplication: After port configurati on synchronization, packets from Secondary VLAN can be forwarded via the p romiscuous port untagged, and those from Primary VLAN can be sent via the host port untagged.
The Private VLAN packet forwarding process (here we take traffic transmission for PC2) based on the figure above is illu strated as follows: 1) PC2 sends out its fir st upstream p acke t with the source MAC as mac_2 and the destination MAC as mac_a. This p acket is untagged.
Figure 6-17 Create Private VLAN The following ent ries are displ ayed on this screen: Create Private VLAN Primary VLAN: Enter the ID number of the Primary VLAN.
Figure 6-18 Create and V iew Protocol T emplate The following ent ries are displ ayed on this screen: Port Config Port: Select the desired port fo r configuration. Port T ype: Select the Port T ype from the pull-do wn list for the port. Primary VLAN: S pecify the Primary VLAN the port belongs to.
Ste p Operation Description 4 Delete VLAN. Optional. On the VLAN → Private VLAN → PVLAN Config page, select the desired entry to delete the corresponding VLAN by clicking the Delete button.
Ste p Operation Description 2 Add Promiscuous port to Private VLANs Required. On the VLAN → Private VLAN → Port Config page, configure the port type of Port3 and Port4 as Promiscuous , enter Primary VLAN 6 and Secondary VLAN 2-3, and click the Add button.
Chapter 7 S p anning T ree 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.
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 send BPDU p ackets. It is used to test the links. Max. Age: Max. Age ranges from 6 to 40 sec onds. It specifies the maximum time the switch can wait without receiving a BPDU before attempting to reconfigure.
Ste p Operation 1 If the priority of the BPDU received on t he po rt is lower than that of the BPDU if of the port itself, the switch discards the BPDU and does not change the BPD U of the port.
point-to-p oint link, it can transit to forw arding state af ter getting response from the downstream switch through handshake. RSTP Ele ment s Edge Port: Indicates the port connected directly to terminals. P2P Link: Indicates the link between two switches direct ly connected.
Port St ates In an MSTP , ports can be in the following four states: Forwarding: In this status the port can rece ive/forward data, receive/send BPDU p acket s as well as learn MAC address. Learning: In this status the port can rece ive/send BPDU p acket s and learn MAC address.
Figure 7-4 STP Config The following entries are displayed on this screen: Global Config STP: Select Enable/Disable STP f unction 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.
Note: 1. The forward delay parameter and the network dia meter are correlated. A too small forwar d delay parameter may result in temporary loops. A too large forward del ay may cause a network unable to resume the normal state in time. The default value is recommended.
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.
The followin g 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 conf iguration. It is multi-optional.
LAG: Displays the LAG number which the port belongs to. Note: 1. Configure the ports con nected directly to terminals as edge port s and enable the BPDU protection function as well. This not only enables these ports to transit to forwarding state rapidly but also secures your network.
Figure 7-8 Instan ce Config The following entries are displayed on this screen: Inst ance T able Inst ance 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 c onfiguration.
Note: In a network with both GVRP and MSTP enabled, GVRP packets ar e forwarded along the CIST . If you want to broadcast packe ts of a specific VL AN through GVRP , please be sure to map the VLAN to the CIST when configuring the MSTP VLAN-ins tance mapping table.
Priority : Enter the priority of the port in the inst ance. It is an important criterion on determining if the port connected to this por t will be chosen as the root port. Path Cost: Path Cost is used to choose the path and calculate the path costs of ports in an MST region.
Loop Protect In a stable network, a switch mainta ins the st ates of port s by receiving and processing BPDU packet s from the upstream switch. Ho wever , wh en link congestions or link failures o.
With BPDU filter function enabled, a port does not receive or forwar d BPDUs, but it sends out its own BPDUs. Such a mechanism prevent s the swit ch from being attacked by BPDUs so as to guarantee generation the spanning trees correct. Choose the menu Sp anning T ree → STP Security → Port Protect to load the following page.
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.
Configuration Procedure Configure switch A: 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 the ports to VLAN101-VLAN106. The detailed instructions can be found in the section 802.
Configure switch C: 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 the ports to VLAN101-VLAN106. The detailed instructions can be found in the section 802.
The configuration procedure for switch E and F is the same with that for switch D. The topology diagram of the t wo instances af ter the topology is stable For Instance 1 (VLAN 101, 103 and 105), the red pa ths in the following figure are connected links; the gray paths ar e the blocked links.
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.
Multicast Address 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.
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.
3. IGMP Leave Message 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 .
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.
Figure 8-5 Port Config The following entries are displayed on this screen: Port Config Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for IGMP Snooping feature configuration.
Figure 8-6 VLAN Config The following entries are displayed on this screen: VLAN Config VLAN ID: Enter the VLAN ID to e nable IGMP Snooping for the desired VLAN.
Router Port s: Displays the router port of the VLAN. Note: The settings here will be invalid when multicast VLAN is enabled Configuration procedure: Ste p Operation Description 1 Enable IGMP Snooping function Required.
The followin g entries are displayed on this screen: Multicast VLAN Multicast VLAN: Select Enable/Disable Multicast VLAN feature. VLAN ID: Enter the VLAN ID of the multicas t VLAN.
Ste p Operation Description 3 Configure p arameters for multicast VLAN Optional. Enable and configur e a multicast VLAN on the Multicast → IGMP Snoo ping → Multicast VLAN page.
Ste p Operation Description 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 AG , and add it to VLAN3, VLAN4 and VLAN5. For port 4, configure its link type as GENERAL and its egress rule as UNT AG , and add it to VLAN3 and VLAN 4.
The followin g entries are displayed on this screen: Search Option Multicast IP: Enter the multicast IP address the desired entry must carry . VLAN ID: Enter the VLAN ID the desired entry must carry . Port: Select the port number the desired entry must carry .
The followin g 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 multicas t IP .
Figure 8-10 Multicast Filter The following entries are displayed on this screen: Create IP-Range IP Range ID : Enter the IP-range ID. St art 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.
Figure 8-1 1 Port Filter The following entries are displayed on this screen: Port Filter Config Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select the desired port for multicas t filtering.
Configuration Procedure: Ste p Operation Description 1 Configure IP-Range Required. C onfigur e IP-Range to be filtered on Multicast → Multicast Filter → IP-Range page. 2 Configure multicast filter rules for ports Optional. Configure multicast filter rules for ports on Multicast → Multicast Filter → Port Filter page.
Port: Displays the port number of the switch. Query Packet: Displays the number of query packets the port received. Report Packet (V1): Displays the number of IGMPv1 report packet s the port received. Report Packet (V2): Displays the number of IGMPv2 report packet s the port received.
Quer y Interval: Enter the time interval of sending a general query frame by IG MP Snooping Querier . Max Response Tim e : Enter the maximal time for the host to respond to a general que ry frame sent by IGMP Snooping Querier . General Query Source IP: Enter the source IP of the general query frame sent by IGMP Snooping Querier .
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 .
2. 802.1 P Priority 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.
Figure 9-4 SP-Mode 2. WRR-Mode: We ight 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.
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 implement QoS function. This switch implem ents th ree priority mode s based on por t, on 802.
Configuration Procedure: Ste p Operation Description 1 Select the port priority Required. On QoS → DiffServ → Port Priority page, configure the port priority . 2 Configure the mapping relation between the CoS priority and TC Required. On QoS → DiffServ → 802.
Priority Level DSCP: Indicates the priority determined by the DS region of IP dat agram. It ranges from 0 to 63. Priority Level: Indicates the priority level the packet s with tag are mapped to. The priority levels are labeled as TC0, TC1, TC2 and TC3.
The followin g entries are displayed on this screen: 802.1P Priority Config 802.1P Priority : Select Enable/Disable 802.1P Priority . Priority and CoS-mapping Config T ag-id/Cos-id: Indicates the precedence level defined by IEEE802.1P and the CoS ID.
WRR-Mode: Weight Round Robin Mode. In th is mode, packet s in all the queues are sent in order based on the weight value for each queue. The weight value ratio of TC0, TC1, TC2 and TC3 is 1:2:4:8. SP+WRR-Mode: S trict-Priority + Weight Round R obin Mode.
The followin g 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 conf iguration. It is multi-optional.
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 conf iguration.
9.3 V oice V LAN V oice VLANs are configured spec ially for voice data stream. By configuring V oice VLANs and adding the ports with voice devices attached to voice VLANs, you can perform QoS-related configuration for voice data, ens uring the transmission priority of voice data stream and voice quality .
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 .
Note: Don’t transmit voice stream toget her with other business packet s in the voice VLAN except for some special requirements. The V oice VLAN functi on can be implemented on Global Config, Port Config and OUI Config pages.
Figure 9-13 Port Config Note: T o 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 re ceives voice streams.
LAG: Displays the LAG number which the port belongs to. 9.3.3 OUI Config The switch supports OUI creation an d adds the MAC address of the special voi ce device to the OUI table of the switch. The switch det ermines whether a received packet is a voice packet by ch ecking its OUI address.
the port configure the link type of ports of the voice device. Ste p Operation Description 2 Create VLAN Required. On VLAN → 80 2.1Q VLAN → Port Config page, click the Create button to create a VLAN.
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.
10.1.2 Time-Range Create On this page you can create time-ranges. Choose the menu ACL → Time-Range → Time-Range Create to load the following 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.
10.1.3 Holida y 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 → Holiday Config to load the following page.
Choose the menu ACL → ACL Config → ACL Summary to load the following page. Figure 10-4 ACL Summary The following entries are displayed on this screen: Search Option Select ACL: Select the ACL you ha ve created ACL T ype: Displays the type of the ACL you select.
Choose the menu ACL → ACL Config → MAC ACL to load the following page. Figure10-6 Create MAC Rule The following entries are displayed on this screen: Create MAC-Rule ACL ID: Select the desired MAC AC L for configuration. Rule ID: Enter the rule ID.
Figure10-7 Create S tandard-IP Rule The following entries are displayed on this screen: Create St an dard-IP Rule ACL ID: Select the desired S tandard-I P ACL for configuration. Rule ID: Enter the rule ID. Operation: Select the operation for the switch to process packet s which match the rules.
Figure10-8 Create Extend-IP Rule The following entries are displayed on this screen: Create Extend-IP Rule ACL ID: Select the desired Extend-I P ACL for configuration. Rule ID: Enter the rule ID. Operation: Select the operation for the switch to process packet s which match the rules.
S-Port: Configur e TCP/IP source port cont ained in the rule when TCP/UDP is selected from the pull-down list of IP Protocol. D-Port: Configure TCP/IP destination por t contained in the rule when TCP/UDP is selected from the pu ll-down list of IP Protocol.
Operation: Click the Edit button to modify the action. 10.3.2 Policy Create On this page you can create the policy . Choose the menu ACL → Policy Config → Policy Create to load the following page. Figure 10-10 Create Policy The following entries are displayed on this screen: Create Policy Policy Name: Enter the name of the policy .
S-Mirror: Select S-Mir ror to mirror the data p a ckets in the policy to the specific port. S-Condition: Select S-Condition to limit the transmission rate of the data packet s in the policy . Rate: S pecify the forwarding rate of the data packet s those match the corresponding ACL.
Policy Bind T able Select: Select the desired entry to delet e the corresponding binding policy . Index: Displays the index of the binding policy . Policy Name: Displays the name of the binding policy . Interface: Displays the port number or VLAN ID bound to the policy .
Figure10-14 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 .
Network Diagram Configuration Procedure Ste p Operation Description 1 Configure T ime-range On ACL → Time-Range page, create a time-range named work_time. Select Week mode and configure the w eek time from Monday to Friday . Add a time-slice 08:00~18:00.
Ste p Operation Description 3 Configure 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 10.
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 , IP Source Guard, DoS Defend and 802.1X . Please configure t he functions appropriate to your need.
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.
Figure 1 1-2 Manual Binding 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.
addr ess of the Host on Network layer . MAC address, the address of the Host on Data link layer , is necessary for the packet to reach the very de vice. So the destination IP address carried in a packet need to be translated into the corresponding MAC address.
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 untagged packet s for scanning.
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 Client, so as to reach a dynamic employ of the network source.
（ 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 addresses and replies to the Client with DHCP-OFFER packet carrying the IP address and other information.
Figure 1 1-7 DHCP Cheating At tack Implement ation Procedure DHCP Snooping feature only allows the port connect ed to the DHCP Server as the trusted port to forward DHCP pa ckets and thereby ensures that users get proper IP addresses.
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 Config DHCP Snooping: Enable/Disable the DHCP Snooping function globally .
Decline Flo w Control: Select the value to s pecify the Decline Flow Contr ol. The traffic flow of the corresponding port will be limited to be this value i f the transmission rate of the Decline packet s exceeds the Decline Threshold. Option 82 Config Option 82 Support: Enable/Disable the Option 82 feature.
ARP , such as imitating Gateway , cheating Ga teway , cheating terminal Hosts and ARP Flooding Attack, frequently occur to the network, especially to the large network su ch as campus network and so on. The following p art will si mply introduce these ARP att acks.
Figure 1 1-10 ARP Attack – Cheating Gat eway 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.
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.
ARP Flooding Attack The attacker broadcasts a mass of various fake AR P p ackets in a network segment to occupy the network bandwidth viciously , which results in a dramatic slowdown of network speed. Meantime, the Gateway learns the false IP address-to -MAC address mapping entries from these ARP packet s and updates its ARP table.
T rusted Port T rusted Port: Select the port for which the AR P Detect function is unnecessar y as the T rusted Port . The specific ports, such as up-linked port, routing port and LAG port, shoul d be set as T rusted Port.
Figure 1 1-14 ARP Defend The following ent ries are displ ayed on this screen: ARP Defend Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered. Select: Select your desired port for confi guration.
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 .
Figure 1 1-16 IP Source Guard The following ent ries are displ ayed on this screen: IP Source Guard 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.
p acket s may incur a breakdown of the network. The switch can d efend several types of DoS attack listed in the following table. DoS Att ack T ype Description Land Attack The attacker sends a specific fake SYN packe t to the destination Host.
11.4.1 DoS Defend On this page, you can enable the DoS De fend type appropriate to your need. Choose the menu Network Securit y → DoS Defend → DoS Defend to load the following page. Figure 1 1-17 DoS Defend The following ent ries are displ ayed on this screen: Defend Config DoS Defend: Allows you to Enable/Dis able DoS Defend function.
Figure 1 1-18 DoS Detect The following ent ries are displ ayed on this screen: Detect Config Detect Time: S pecify the detect time for eac h DoS attack type except the flooding attack type. Detect: Click the Detect button to start the detection. The switch will detect each type of the DoS attack in turn.
Figure 1 1-19 Architecture of 802.1X authentication （ 1 ） Supplicant S ystem: The supplicant system is an entit y in LAN and is authenticated by the authenticator system. T he supplicant system is usually a common user terminal computer . An 802.1X authentication is initiated when a user launc hes client program on the supplicant system.
can also lau nch an 802.1X client program to initiate an 802.1X authentic ation through the sending of an EAPOL-S tart p acket to the switch, This TP-LINK switch can authentic ate supplicant systems in EAP relay mode or EAP terminating mode. The following illustration of these two m odes will take the 802.
6. The RADIUS server compares the receiv ed encrypted password (cont ained in a RADIUS Access-Request packet) with the lo cally-encrypted password. If the two match, it will then send feedbacks (through a RADI US Access-Accept pa cket and an EAP-Success packet) to the switch to indicate that t he supplicant system is authorized.
the authentication requ est packet if the RADIUS server fa ils to respond in the specified timeout period. （ 3 ） Quiet-period timer (Quiet Period): This timer sets the quiet-period.
Th e following ent ries are displ ayed on this screen: Global Config 802.1X: Enable/Disa ble the 802.1X function. Auth Method: Select the Authentication Me thod from the pull-down list. EAP-MD5: IEEE 802.1X authentication system uses extensible authenticat ion protocol (EAP) to exchange information between the switch and the client.
Figure 1 1-23 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.
11.5.3 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 the authenticat ion and accounting status of the c lients.
Note: 1. The 80 2.1X function takes ef fect only when it is enabled globally on the switch and for the port. 2. The 802.1X function can not be enabled for LAG member ports . That is, the port with 802.1X function enabled can not be added to the LAG . 3.
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.
failing to p ass 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 adopts community name authentic ation. It is comp atible with SNMP v1 while enlarges the function of SNMP v1.
SNMP module is used to configure the SNMP f unction of the switch, including three submenus: SNMP Config , Notification and RMON . 12.1 SNMP Config The SNMP Config can be implemented on the Global Config , SNMP Vie w , SNMP Group , SNMP User and SNMP Community pages.
12.1.2 SNM P 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.
Figure 12-5 SNMP Group The following ent ries are displ ayed on this screen: Group Config Group Name: Enter the SNMP Group name. The Group Name, Security Model and Security Level compose the identifier of the SNMP Group. These three items of the User s in one group should be the same.
Group T able Select: Select the desired entry to delete the corresponding group. It's multi-optional. Group Name: Displays the Group Name here. Security Model: Displays the Security Model of the group. Security Level: Displays the Security Level of the group.
User T ype: Select the type for the User . Local User: Indicates that the us er is connected to a local SNMP engine. Remote User: Indicates that the us er is connected to a remote SNMP engine.
12.1.5 SNM P Community SNMP v1 and SNMP v2c adopt community name authentication. The comm unity name can limit access to the SNMP agent from SNMP network ma nagement station, functioni ng as a password. If SNMP v1 or SNMP v2c is employed, you can di rectly configure the SNMP Community on this page without configuring SNMP Group and User .
Configuration Procedure: If SNMPv3 is employed, please take the following step s: Ste p Operation Description 1 Enable SNMP function globally . Required. On the SNMP → SNMP Config → Global Config page, enable SNMP function globally . 2 Create SNMP V iew .
12.2 Notification With the Notification function enabl ed, the switch can initiatively report to the management station about the important events that o ccur on the V iews (e.g., the manag ed devi ce is rebooted), which allows the management station to monitor and process the events in time.
Ty p e : Select the type for the notifications. Tr a p : Indicates traps are sent. Inform: Indicates informs are sent. The Inform type has a higher security than the T rap type. Retry: S pecify the amount of times t he switch resends an inform request.
RMON Group Function History Group After a history group is confi gured, the switch collects and records network statistics information periodically , based on which the m anagement station can monitor network effectively . Event Group Event Group is used to define RMON events.
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 ent ries are displ ayed on this screen: Event T able Select: Select the desired entry for configuration.
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 configuration. Index: Displays the index number of the entry . Va r i a b l e : Select the alarm varia bles from the pull-down list.
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 direc.
Chapter 13 LLDP LLDP (Link Layer Discovery Protocol) is a Layer 2 protocol that is used for network devices to advertise their own device information periodically to neighbors on the same IEEE 802 local area network.
Disable: the port cannot tr ansmit or receive LLDPDUs. 2) LLDPDU transmission mechanism If the ports are working in TxRx or Tx m ode, they will advertise local information by sending LLDPDUs periodically . If there is a change in the local device, the change notification w ill be advertised.
TL V T ype TL V Name Description Usage in LLDPDU 3 T ime T o Live Indicates th e number of seconds that the neighbor device is to regard the local information to be valid. Mandatory 4 Port Description Identifies the description string of the port. Optional 5 System Name Identifies the system name.
S ystem Name TLV The System Name TLV allows network manageme nt to advertise the system's assigned name, whic h should be the system's fully qualified domain name.
Figure 13-1 Global Configuration The following ent ries are displ ayed on this screen: Global Config LLDP: Enable/disable LLDP function globally . Parameters Config T ransmit Interval: Enter the interval for the local device to transmit LLDPDU to it s neighbors.
Figure 13-2 Port Configuration The following ent ries are displ ayed on this screen: LLDP Port Config Port Select: Select the desired port to configure. Admin St atus: Select the port’s LLDP operating mode: Tx&Rx: Send and receive LLDP frames.
Figure 13-3 Local Information The following ent ries are displ ayed on this screen: Auto Refresh Auto Refresh: Enable/Disable the aut o r efresh function. Refresh Rate: Specify the a uto refresh rate. Local Info Enter the desired port number and click Select to display the information of the corresponding port.
Th e following ent ries are displ ayed on this screen: Auto Refresh Auto Refresh: Enable/Disable the aut o r efresh function. Refresh Rate: Specify the a uto refresh rate. Neighbor Info Port Select: Click the Select button to quick-select the corresponding port based on the port number you entered.
Figure 13-5 Device S tatistics The following ent ries are displ ayed on this screen: Auto Refresh Auto Refresh: Enable/Disable the aut o r efresh function. Refresh Rate: Specify the a uto refresh rate. Global St atistics Last Up date: Displays latest update ti me of the statistics.
Receiv e T otal: Displays the number of LLDPDUs received by this port. Discards: Displays the number of L LDPDUs discarded by this port. Errors: Displays the number of error LLDPDUs received by this port. Ageout s: Displays the number of overtime neighbors linking to this port.
Chapter 14 Cluster With the development of network technology , the network scale is getting larger and mor e network devices are required, which may result in a mo re complicated network m anagement system.
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.
Neighbor Search Option: Select the information the desir ed en try 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.
The followin g 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 packets.
Figure 14-4 NDP Config The following entries are displayed on this screen: Global Config NDP: Select Enable/Disable NDP function globally . Aging Time: Enter the period for the neighbor switch to keep the NDP packet s from this switch. Hello Time: Enter the interval to send NDP packets.
14.2 NTDP NTDP (Neighbor T opology Discovery Protocol ） is used for the commander switch to collect NDP information. NTDP transmit s and forwards NTDP topology collection request based on NDP neighbor information table, and collects the NDP information and neighboring connection information of each device in a specific network r ange.
Neighbor In fo: Click the Det ail button to view the complete information of this device and its neighbors. Collect T opology: Click the Collect T opology button to collect NTDP information of the switch so as to collect the latest network topology . Click the Det ail button to view the complete information of this device and its neighbors.
Figure 14-7 NTDP Summa ry The following entries are displayed on this screen: Global Config NTDP: Displays the NTDP st atus (enabled or disabled) of the switch globally . NTDP Interval T ime: Displays the interval to co llect topology information.
Figure 14-8 NTDP Co nfig The following entries are displayed on this screen: Global Config NTDP: Select Enable/Disable NTDP for the switch globally . NTDP Interval T ime: Enter the interval to collect topol ogy i nformation. The default is 1 minute.
NTDP: Displays NTDP status (e nabled or disabled) of the current port. Enable: Click the Enable button to enable NTDP feature for the port you select. Disable: Click the Disable button to disable NTDP feature for the port you select. Note: NTDP function is ef fective only when NTDP f unction is enabled globally and for the port.
For a commander switch ， the following page is displayed: Figure 14-10 Cluster Summary for Commande r Switch The following entries are displayed on this screen: Global Config Cluster: Displays the cluster status (enabl ed or disabled) of the switch.
Hop s: Displays the hop count from the member switch to the commander switch. For a member switch, the following page is displayed: Figure 14-1 1 Cluster Summary for Member Switch The following entries are displayed on this screen: Global Config Cluster: Displays the cluster status (enabl ed or disabled) of the switch.
For a candidate switch, the following page is displayed. Figure 14-13 Cluster Configurat ion for Candid ate Switch The following entries are displayed on this screen: Current Role Role: Displays the role the current switch plays in the cluster .
Current Role Role: Displays the role the current switch plays in the cluster . Role Change Candidate: Select this option to change the role of the switch to be candidate switch. Cluster Config Hold Time: Enter the time for the switch to keep the cluster information.
The followin g entries are displayed on this screen: Current Role Role: Displays the role the current switch plays in the cluster . Role Change Candidate: Select this option to change the role of the switch to be candidate switch.
14.3.4 Cluster T opology On this page you can see the whole cluster topology . Click the node switch to directly log on to the corresponding Web management page for you to c onfigure and manage this switch. Double-click the node switch to view its detailed information.
If the switch is a commander switch in the cluster , please take the following steps. Ste p Operation Description 1 Enable the NDP function globally and for the port, and then configure NDP parameters Optional. On Cluster → NDP → NDP Config page, enable the NDP function on the switch.
14.4 Batch Management The Batch Management function allows you to m anage the switches in cluster . With a TFTP server set, you can backup the curre nt settings to the TFTP server , or restore the switches to previous settings. The Batch Management func tion is implemented on Batch Management , Stat us and Time-Segment Config p ages.
Figure 14-20 S tatus The following entries are displayed on this screen: Statu s Select: Select the desired switch and click the cancel button to cancel the Auto Backup operation. Index: Displays the index of the switch. Role: Displays the role the switch plays in the cluster .
The followin g entries are displayed on this screen: Create Time-Segment Name: Enter the name of the time-segment. Absolute: Select Absolute and set the S tart/End Date to configure absolute time-segment. The Auto Backup operation based on this time-segment takes ef fect only when the system time is within the absolute time-segment.
Chapter 15 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.
15.1.2 Memor y Monitor Choose the menu Maintenance → S ystem Monitor → Memory Monitor to load the following page. Figure 15-2 Memory Monitor Click the Monitor button to enable the switch to monitor and display its Memory utilization rate every four seconds.
The Log function is implemented on the Log T able , Local Log , Remote Log and Backup Log pages. 15.2.1 Log T able The switch supports logs output to two directions , namely , log buffer and log file.
15.2.2 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 _2 are saved in log file meanwhile. On this page, you can set the output channel for logs.
Figure 15-5 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: Configure the IP for the log host. UDP Port: Displays the UDP port used for receiving/sending log information.
Backup Log: C lick 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. 15.3 Device Diagnostics This switch provides Cable T est and Loopback functions for device diagnostics.
4. If the port is 100Mbps and its connection sta tus is no rmal, cable test can’ t get the length of the cable. 15.3.2 Loopback Loopback test function, looping the sender and the receiver of the si .
Choose the menu Maintenance → Netw ork Diagnostics → Ping to load the following page. Figure 15-9 Ping The following ent ries are displ ayed on this screen: Ping Config Destination IP: Enter the IP address of the destination node for Ping test.
Figure 15-10 T racert The following ent ries are displ ayed on this screen: T racert Config Destination IP: Enter the IP address of the destination device. Max Hop: S pecify the maximum number of t he route hops the test data can pass through. W ait T ime: Enter the maximum time (in millise conds) for the test data to wait before timeout.
Chapter 16 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.
2 ） The Connection Description Wi ndow will prompt shown as Figure 16-3 . Enter a name into the Name field and click OK . Figure 16-3 Connect ion Description 3 ） Select the port to connect in Figure 16-4 and click OK .
Figure 16-5 Port Settings 3. Download Firmware via bootrom menu T o download firmware to the switch via FTP func tion, you need to enter into the bootrom menu of the switch and take the following steps. 1 ） Connect the console port of the PC to the console port of th e switch and open hyper terminal.
[TL-SL5428E]: ifconfig ip 10.10.70.22 mask 255.255.255.0 gatew ay 10.10.70.1 4 ） Configure the parameters of the FTP server which keeps the upgrade firmware. Later you can download the firmware to the switch from the FTP server . The format of the command is: f tp host xxx.
Appendix A: Specifications 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 QoS IEEE802.1q VLAN Standards IEEE802.
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 .
238 5) The following TCP/IP Properties window will display and the IP Address tab is open on this window by default. Figure B-3 6) Select Use the following IP address . And the following items will be available. If the switch's IP address is 192.
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.
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.
Figure C-5 Install the Program 6. The InstallShield Wizard is inst alling Tp Supplicant shown as the following screen. Please wait. Figure C-6 Setup S tatus 7.
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 .
2. Then the following screen will appear . If you want to stop the remove process, click Cancel . Figure C-9 Preparing Setup 3. On the continued screen, click Ye s to remove the application from your PC. Figure C-10 Uninstall the Application 4. Click Finish to complete.
Figure C-12 TP-LINK 802.1X Client Enter the Name and the Password specified in the Authentic ation Server . The length of Name and Password should be less than 16 characters. 2. Click the Properties button on Figure C-12 to lo ad the following screen for configuring the connection properties.
3. T o continue, click Connect button after entering the Name and Password on Figure C-12. Then the following screen will appear to prompt that the Radius server is being searched. Figure C-14 Authentication Dialog 4. When passing the authentication, the following screen will appear .
246 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 Software compliable with the switches of the other manufacturers? A2: No.
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.
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.
Layer 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.
250 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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il TP-Link TL-SL5428E è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del TP-Link TL-SL5428E - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso TP-Link TL-SL5428E imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul TP-Link TL-SL5428E ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il TP-Link TL-SL5428E, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del TP-Link TL-SL5428E.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il TP-Link TL-SL5428E. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo TP-Link TL-SL5428E insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
