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Forwarding and Filtering 

 

IGMP Snooping

 

 

The switch support IP multicast, you can enable IGMP protocol on web management’s 

switch setting advanced page, then display the IGMP snooping information in this page, 

you can view difference multicast group VID and member port in here, IP multicast 

addresses range from 224.0.0.0 through 239.255.255.255. 

 

The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet 

Protocol (IP) suite. IP manages multicast traffic by using switches, routers, and hosts 

that support IGMP. Enabling IGMP allows the ports to detect IGMP queries and report 

packets and manage IP multicast traffic through the switch. IGMP have three 

fundamental types of message as follows: 

 

Message 

Description 

Query

 

A message sent from the querier (IGMP router or switch) asking for a 

response from each host belonging to the multicast group. 

Report

 

A message sent by a host to the querier to indicate that the host 

wants to be or is a member of a given group indicated in the report 

message. 

Leave 

Group

 

A message sent by a host to the querier to indicate that the host has 

quit to be a member of a specific multicast group. 

 

When you enable the IGMP Snooping, you will see the relate information show as 

following figure. 

Summary of Contents for GSW-2493

Page 1: ...GSW 2493 4 slot modularized L2 SNMP Switch User Guide...

Page 2: ......

Page 3: ...nstallation 7 Attaching Rubber Feet 8 Rack mounted Installation 8 Power On 8 3 NETWORK APPLICATION 9 Stacking Workgroup 9 Connecting to the Switch 10 4 CONSOLE MANAGEMENT 11 Login in the Console Inter...

Page 4: ...72 Trunking 73 Forwarding and Filtering 77 VLAN configuration 80 Spanning Tree 88 Port Mirroring 90 SNMP Management 91 Security Manager 93 802 1X 94 TFTP Update Firmware 96 Configuration Backup 97 TFT...

Page 5: ...Diagnosing LED Indicators 105 Cabling 105 7 TECHNICAL SPECIFICATION 106...

Page 6: ......

Page 7: ...hich is done by the regular ports MDI X ports that connect to end stations In general MDI means connecting to another Hub or Switch while MDIX means connecting to a workstation or PC Therefore Auto MD...

Page 8: ...t CLI management Option Module for slot MDU 2493TX 8 ports 10 100TX module MDU 2493SXSC 8 ports 100FX module MDU 0140 2 port 1000T copper module MDU 0142 2 port miniGBIC module Software Features Manag...

Page 9: ...all High before Low WRR for High or low weight Port Based Priority Support 3 settings Disable Low and High priority When set to Disable the income packet will follow QoS policy Otherwise the packet wi...

Page 10: ...1x User Authentication and can report to RADIUS server Reject Accept Authorize Disable DHCP DHCP Client Packet filter Broadcast storm Package Contents Unpack the contents of the GSW 2493 and verify th...

Page 11: ...d by using the store and forward technology s approach of inspecting each packet to intercept corrupt or redundant data switching eliminated unnecessary transmission that slow the network By employing...

Page 12: ...Panel of the GSW 2493 consists of 3 module slots One module slot is located in rear panel of the switch LED Indicators The LED Indicators gives real time information of systematic operation status The...

Page 13: ...d power plug 2 fans power switching and one console port is located at the rear Panel of the GSW 2493 as shown in Figure 2 1 The Switch will work with AC power in the range of 100 240V AC 50 60Hz Figu...

Page 14: ...et screws Then attach the remaining bracket to the other side of the Switch B After attached both mounting brackets position the switch in the rack by lining up the holes in the brackets with the appr...

Page 15: ...vidual stackable switches into a single logical unit using cables and with stacking software supported The stack behaves as a single switching unit that is managed by a master switch elected from one...

Page 16: ...01 The stackable switch Slave 02 Cable connection Cat 5 cable Cable connection Cat 5 cable The stackable switch Slave 08 Can units up to 8 stackable switches Figure 3 2 A stacking workgroup applicatio...

Page 17: ...f the console port Baud Rate 9600 bps Data Bits 8 Parity none Stop Bit 1 Control flow None Figure 4 1 The settings of communication parameters After finished the parameter settings click OK When the b...

Page 18: ...and Counters Show the status of the switch Switch Static Configuration Configure the switch Protocol Related Configuration Configure the protocol function System Reset Configuration Restart the syste...

Page 19: ...ription The control keys provided in all menus Tab Move the vernier to next item Backspace Move the vernier to previous item Enter Select item Space Toggle selected item to next configure or change th...

Page 20: ...to display previous page And select the Next page action to display next page Port display the number of port The first integer is the module slot number The second integer is the port number in the m...

Page 21: ...tus Bandwidth In Out display bandwidth In out control status Priority display the port priority status Security display the port security status Port status interface Port Counters It displays the cur...

Page 22: ...stem Description the name of device type 4 Firmware Version the switch s firmware version 5 Kernel Version the system kernel software version 6 Hardware Version the switch s Hardware version 7 MAC Add...

Page 23: ...17 System Information interface...

Page 24: ...ort Mirroring VLAN Priority MAC Address and Misc Configuration Under each function there are more sub functions We will describe in following paragraph Switch Configuration interface Administration Co...

Page 25: ...ure the device information 1 Select Edit action to configure 2 Name assign the name for the switch 3 Description a short description for the switch 4 Location the switch location ex Taipei 5 Contact t...

Page 26: ...1 Select the Edit 2 DHCP Client disable or enable the DHCP client function 3 IP Address assign the switch IP address The default IP is 192 168 16 1 4 Subnet Mask assign the switch IP subnet mask 5 Ga...

Page 27: ...Configuration interface User Name Configuration You can change the console and web management login user name 1 Select the Edit 2 Enter the new user name 3 Select the Save User Name Configuration inte...

Page 28: ...d Configuration interface Port Configuration You can set up every port status 1 Select Edit 2 Use Tab key to move between items 3 State Current port status The port can be set to disable or enable mod...

Page 29: ...et port to high or low priority 10 Security enable or disable port security function 11 Select the Save Port Configuration interface Trunk Configuration You can configure port trunk group 1 Select Edi...

Page 30: ...ort can monitor traffic through the mirror ports The monitored ports in or out traffic will be duplicated into monitoring port 1 Select the Edit 2 Mirroring State select the port mirroring mode The de...

Page 31: ...t Set the destination port of mirroring packet All of the packets of mirroring port will be duplicated and sent to Analysis port 4 Port State use Space key to mark the port that wanted to be mirrored...

Page 32: ...N mode in VLAN Configure function Otherwise user cannot create any new VLAN 1 Select the Edit 2 Select the VLAN mode by using Space key There are two VLAN modes PortBase mode and 802 1Q mode 802 1Q VL...

Page 33: ...for the new VLAN ex VLAN01 3 Group ID Type the VLAN group ID The group ID rang is from 1 to 4094 4 Member Press Space key to change the member value There are two types to selected a Member the port...

Page 34: ...rs in this VLAN group can access to the switch The steps of setting security VLAN refer to the following step 2 8 After you have configured the security VLAN group you can continue to create other VLA...

Page 35: ...g frames are NO VLAN Tagged frames Tagged this port is the member port of this VLAN group and outgoing frames are VLAN Tagged frames NO it means that the port is NOT member of this VLAN group 7 Press...

Page 36: ...n 802 1Q VLAN mode the default VLAN can t be deleting 3 In Port Base VLAN mode there is no default VLAN Edit Delete a VLAN Group interface 802 1Q VLAN group Group Sorted Mode You can select VLAN group...

Page 37: ...31 Group Sorted Mode interface...

Page 38: ...high priority packet first the process 1 low priority packet Weight Round Ration 3 1 the switch will process 3 high priority packet first the process 1 low priority packet Weight Round Ration 4 1 the...

Page 39: ...tch s address table regardless of whether the device is physically connected to the switch This saves the switch from having to re learn a device s MAC address when the disconnected or powered off dev...

Page 40: ...ivity 3 Port No press Space key to select the port number 4 VLAN ID enter the Mac address s VLAD ID if the Mac address belongs to any VLAN group 5 Press ESC to go back action menu line 6 Select Save t...

Page 41: ...can add delete and edit filtering MAC address Filtering MAC Address interface Add the Filtering MAC Address 1 Select Add Edit key to add the static MAC address 2 MAC Address Enter the MAC address tha...

Page 42: ...Delete Filtering MAC address 1 Select Delete to delete a Filtering MAC address 2 Choose the MAC address that you want to delete and then press Enter 3 After delete Filtering MAC address you have to se...

Page 43: ...ound control is enabled before enable Low Queue Delay Bound because Low Queue Delay Bound must be work under Max bridge transit delay bound control is enabled situation Collisions Retry Forever Disabl...

Page 44: ...acking function you must configure the master switch first 3 After you have configured the stacking function use Cat 5 cable to connect every switch in the stacking group 4 To remove the switch from s...

Page 45: ...col SNMP LACP IGMP GVRP and 802 1x in Protocol Relate Configuration section Protocol Relate Configuration interface STP Spanning tree is a link management protocol that provides path redundancy while...

Page 46: ...ion You can configure the STP system parameter after enable the STP function You can view spanning tree information about the Root Bridge on the left 1 Select Edit 2 Priority assign path priority numb...

Page 47: ...rmine which port are the forwarding ports 3 Priority This is mean port priority you can make it more or less likely to become the root port 4 Press ESC goes back action menu line 5 Select Save to save...

Page 48: ...ort Setting interface SNMP To define management stations as trap managers and to enter SNMP community strings You can also define a name location and contact person for the switch SNMP Configuration i...

Page 49: ...ure value SNMP System Options interface Community Strings Add Community Strings 1 Select Add 2 Select Edit 3 Community Name type the name of community strings 4 Write Access enable the rights is read...

Page 50: ...ce Edit Community Name 1 Select Edit 2 Choose the item that you want to modify and then press Enter 3 Community Name type the new name 4 Write Access Press Space key to change the right 5 Select Save...

Page 51: ...s the system alerts generated by the switch If no trap manager is defined no traps will issue Create a trap manager by entering the IP address of the station and a community string Trap Managers inter...

Page 52: ...Link Aggregation Control instances to reach agreement on the identity of the Link Aggregation Group to which the link belongs move the link to that Link Aggregation Group and enable its transmission a...

Page 53: ...CP static trunk group When LACP disable the group is local static trunk group 4 Working Port Num The max number of ports can be aggregated at the same time If LACP static trunk group the exceed ports...

Page 54: ...to select the Port State Activity Active The port automatically sends LACP protocol packets Passive The port does not automatically send LACP protocol packets and responds only if it receives LACP pro...

Page 55: ...g trunk group you can see the relation information in here LACP Group State interface IGMP GVRP You can enable or disable the IGMP GVRP GARP VLAN Registration Protocol 1 Select Edit 2 Use Space key to...

Page 56: ...50 IGMP GVRP Configuration interface 802 1x 802 1x Configuration interface 802 1x Setup 1 Select Edit 2 Use Space key to Enable or Disable the 802 1x...

Page 57: ...an encryption key for using during authentication sessions with the specified radius server This key must match the encryption key used on the Radius Server 4 NAS Identifier set the identifier for th...

Page 58: ...ation interface Per Port Configuration You can configure 802 1x authentication state for each port The State provides Disable Accept Reject and Authorize Use Space key change the state value 802 1x Pe...

Page 59: ...iod of time the switch wait for a supplicant response to an EAP request 5 Server Timeout set the period of time the switch wait for a server response to an authentication request 6 Reauthorize Maximum...

Page 60: ...n System Reset Configuration interface Factory Default Reset switch to default configuration Press Y switch will load default setting After finished load default setting switch will reboot automatical...

Page 61: ...re It provides user uses TFTP to update firmware 1 Start the TFTP server and copy firmware update version image file to TFTP server 2 Select Edit 3 TFTP Server IP type the IP of TFTP server 4 Firmware...

Page 62: ...rom TFTP server 1 Start the TFTP server 2 Select Edit 3 TFTP Server IP type the IP of TFTP server 4 Restore File Name type the image file name 5 Press ESC back to action menu line 6 Select Save it wil...

Page 63: ...e can be restore from TFTP server when you need 1 Start the TFTP server 2 Select Edit 3 TFTP Server IP type the IP of TFTP server 4 Backup File Name type the image file name 5 Press ESC back to action...

Page 64: ...minal and modify baud rate to 57600bps then connect again 1 Press X key to start upgrading from X modem 2 You will see the following screen displays 3 Select send file under Transfer menu from menu ba...

Page 65: ...59 6 After successfully upgraded the new firmware please modify baud rate to 9600bps...

Page 66: ...ernet Explorer 5 0 It is based on Java Applets with an aim to reduce network bandwidth consumption enhance access speed and present an easy viewing screen Note By default IE5 0 or later version does n...

Page 67: ...of the switch Press Enter 3 The login screen appears 4 Key in the user name and password The default user name and password is root 5 Click Enter or OK then the home screen of the Web based management...

Page 68: ...Down is No Link UP is Link 4 State display port statuses disable or enable Unlink will be treated as off 5 Auto Negotiation display the auto negotiation mode auto force Nway force Config means the val...

Page 69: ...In Out display the port incoming and outgoing bandwidth 10 Priority display the port static priority status is High or Low or Disable 11 Port Security display the port security is enable or disable Po...

Page 70: ...64 Port information interface Port Statistics The following information provides a view of the current port statistic information Click Clear button to clean all counts...

Page 71: ...formation Port Controls Trunking Forwarding and Filtering VLAN Configuration Spanning Tree Port Mirroring SNMP Management Security Manager and 802 1x Configuration Administrator interface IP Configura...

Page 72: ...tch System Location the switch physical location System Description the description of switch Firmware Version the switch s firmware version Kernel Version the kernel software version Hardware version...

Page 73: ...Max Bridge Transmit Delay Bound Control limit the packets queuing time in switch If enable the packets queued exceed will be drop This valid value are 1sec 2 sec 4 sec and off Enable Low Queue Delay B...

Page 74: ...he sequence of packets sent is depend on arrive order All High before Low the high priority packets sent before low priority packets Weighted Round Ratio select the preference given to packets in the...

Page 75: ...ble 802 1x Protocol enable or disable 802 1x protocol IGMP Query Mode recognizes different queries from clients or servers to decide which Query will be the first priority The modes are a Auto Mode ch...

Page 76: ...er s IP address is smaller than other switches in the subnet 2 IGMP needs to be enabled when the router s IP address is not smaller than other switches in the subnet This Router supports IGMP protocol...

Page 77: ...he smallest in the subnet The network will cause a multi cast storm from the IGMP client report if it is in Auto mode All switches must be in disable mode when the VOD server is configured for IGMP Qu...

Page 78: ...lumn 2 State User can disable or enable this port control 3 Negotiation User can set auto negotiation mode is Auto Nway specify the speed duplex on this port and enable auto negotiation Force of the p...

Page 79: ...dress learning Only the incoming packets with SMAC already existing in the address table can be forwarded normally User can disable the port from learning any new MAC addresses and then use the static...

Page 80: ...disable the group is local static trunk group All ports support LACP dynamic trunking group If connecting to the device that also supports LACP the LACP dynamic trunking group will be created automati...

Page 81: ...75 Trunking Aggregator Setting interface Aggregator Information When you had setup the LACP aggregator you will see relation information in here Trunking Aggregator Information interface...

Page 82: ...does not automatically send LACP protocol packets and responds only if it receives LACP protocol packets from the opposite device Note 1 A link having either two active LACP ports or one active port c...

Page 83: ...upport IGMP Enabling IGMP allows the ports to detect IGMP queries and report packets and manage IP multicast traffic through the switch IGMP have three fundamental types of message as follows Message...

Page 84: ...d off device is active on the network again 1 In MAC Address column enter the MAC address to and from which the port should permanently forward traffic regardless of the device network activity 2 In t...

Page 85: ...affic is filtered based on the destination addresses 1 In MAC Address box enter the MAC address that wants to filter 2 VLAN ID If tag based 802 1Q VLAN are set up on the switch in the VLAN ID box type...

Page 86: ...ive traffic from the same VLAN members Basically creating a VLAN from a switch is logically equivalent of reconnecting a group of network devices to another Layer 2 switch However all the network devi...

Page 87: ...e port based VLAN enabled the VLAN tagging is ignored If an end station sends packets to different VLANs it has to be either capable of tagging packets it sends with VLAN tags or attached to a VLAN aw...

Page 88: ...82 VLAN PortBase interface 1 Click Add to create a new VLAN group 2 Enter the VLAN name group ID and select the members of VLAN group 3 Click Apply...

Page 89: ...83 Add PortBase VLAN interface 4 You will see the VLAN displays PortBase VLAN group list interface...

Page 90: ...g into the Ethernet frames Tag contains a VLAN Identifier VID that indicates the VLAN numbers You can create Tag based VLAN and enable or disable GVRP protocol There are 256 VLAN groups to provide con...

Page 91: ...e for the new VLAN 4 VLAN ID fill in a VLAN ID between 2 4094 The default is 1 5 Protocol VLAN choose the protocol type Default is NONE 6 From the Available ports box select ports to add to the switch...

Page 92: ...86 Add 802 1q VLAN interface 1 7 Click Next Then you will see the page as follow Add 802 1q VLAN interface 1 8 To set the outgoing frames are VLAN Tagged frames or untagged Then click...

Page 93: ...ongs to that VLAN Enable Forward only packets with VID matching this port s configured VID Disable Disable Ingress filter function 3 Acceptable Frame type Tag Only Only packet with match VLAN ID can b...

Page 94: ...P is a standardized method IEEE 802 1d for avoiding loops in switched networks When STP enabled to ensure that only one path at a time is active between any two nodes on the network We are recommended...

Page 95: ...te After modification click Apply button Priority assign path priority number Max Age the maximum path age Hello Time the time that controls switch sends out the BPDU packet to check STP current statu...

Page 96: ...PT Per Port Configuration interface Port Mirroring The Port mirroring is a method for monitor traffic in switched networks Traffic through ports can be monitored by one specific port That is traffic g...

Page 97: ...ort traffic will be copied to mirror port You can select max 25 monitor ports in the switch User can choose which port want to monitor in only one mirror mode Note If you want to disable the function...

Page 98: ...d then click Apply to update the changes System Options 1 Name enter a name for the switch 2 Location enter the switch physical location 3 Contact enter the name of contact person or organization SNMP...

Page 99: ...s defined no traps will issue Create a trap manager by entering the IP address of the station and a community string 1 IP Address fill in the trap device IP 2 Community Strings the trap device communi...

Page 100: ...ccounting requests to the specified Radius Server 4 Shared Key set an encryption key for use during authentication sessions with the specified radius server This key must match the encryption key used...

Page 101: ...Unauthorized state in accordance with the outcome of an authentication exchange between the Supplicant and the authentication server Disable The specified port is required to be held in the Authorized...

Page 102: ...me the switch waits for a server response to an authentication request 5 Max requests Set the number of authentication that must time out before authentication fails and the authentication session end...

Page 103: ...up you can restore the backup configuration into the switch Also you can backup the configuration to TFTP server TFTP Restore Configuration You can restore EEPROM value from TFTP server but you must p...

Page 104: ...store configuration page to restore the EEPROM value 1 TFTP Server IP Address fill in the TFTP server IP 2 Backup File Name fill the file name 3 Click Apply TFTP Backup Configuration interface Factory...

Page 105: ...ot Reboot the Switch in software reset Click Apply button to reboot the switch System Reboot interface Panel List Display the switch panel GUI When the switch is in stacking status it display the slav...

Page 106: ...can remove the master switch from stacking group If you remove the master switch before slave switch go to slave switches one by one and use console configuration to re configure the switch configurat...

Page 107: ...e master switch has configured you will see the following screen IP Stacking master switch configure finished interface 5 After you have configured the stacking function use Cat 5 cable to connect eac...

Page 108: ...ster switch to configure the switch in the stacking group You will see the IP of stacking group list that display the IP and the switch name IP Stacking Finished configuring interface 8 If you want to...

Page 109: ...103 Stacking group configuration interface...

Page 110: ...bles Look for loose or obviously faulty connections If they appear to be OK make sure the connections are snug IF that does not correct the problem try a different cable Non standard cables Non standa...

Page 111: ...power cord However if the Switch powers off after running for a while check for loose power connections power losses or surges at power outlet IF you still cannot resolve the problem contact your loc...

Page 112: ...3x Flow Control and Back pressure IEEE802 3ad Port trunk with LACP IEEE802 1d Spanning tree protocol IEEE802 1p Class of service IEEE802 1Q VLAN Tagging Switch architecture Store and forward switch a...

Page 113: ...2493SXSC 2 Gigabit copper module with RJ 45 connector MDU 0140 2 Gigabit miniGBIC module MDU 0142 MAC address 8K MAC address table with Auto learning function Memory 3Mbits for packet buffer CPU ARM...

Page 114: ...108 Storage temperature 40 70 95 RH EMI FCC Class A CE Safety UL cUL CE EN60950...

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