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Allied Telesis C613-02013-00 manual IGMP is enabled and disabled using the commands

Models: C613-02013-00

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IGMP is enabled and disabled using the commands:

Layer 2 Switching

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IGMP is used in conjunction with limited static multicast settings, or with DVMRP or PIM Sparse Mode for full multicast support (IP Multicasting chapter in the Rapier Switch Software Reference).

IGMP is enabled and disabled using the commands:

ENABLE IP IGMP

DISABLE IP IGMP

IGMP snooping is then enabled or disabled on a VLAN using the commands:

ENABLE IP IGMP INTERFACE={VLAN-vlannameVLANvid}

DISABLE IP IGMP INTERFACE={VLAN-vlannameVLANvid}

The switch will snoop IGMP packets transiting the VLAN and only forward multicast packets to the ports which have seen a membership report from network devices connected to those ports, instead of being forwarded to all ports belonging to the VLAN.

The command:

SET IP IGMP TIMEOUT=1..65535 QUERYINTERVAL=1..65535

sets operational parameters for IGMP. The QUERYINTERVAL parameter specifies the time interval, in seconds, at which IGMP Host Membership Queries are sent if this switch is elected the designated router for the LAN. The default is 125.

The TIMEOUT parameter specifies the longest interval, in seconds, that a group will remain in the local group database without receiving a Host Membership Report. The default is 270. If a value is specified for QUERYINTERVAL without specifying a value for TIMEOUT, TIMEOUT is calculated as 2*(QUERYINTERVAL + 10). The 10 seconds is the variation that hosts use when sending Host Membership Reports. If a timeout interval is specified, it will override any calculated value.

The command:

SHOW IP IGMP

displays information about IGMP, IGMP snooping, and multicast group membership for each VLAN-based IP interface (Figure 17 on page 57, Table 13 on page 58).

Figure 17: Example output from the SHOW IP IGMP command.

IGMP Protocol

------------------------------------------------------------

Status		Enabled
Default Query Interval		125	secs
Default Timeout Interval	.........	270	secs
Interface Name	vlan2	(DR)
Group List

Group. 224.0.1.17 Last Adv. 192.168.1.130 Refresh time 27

Group. 224.0.1.43 Last Adv. 192.168.1.130 Refresh time 27

Group. 224.0.1.66 Last Adv. 192.168.1.140 Refresh time 27

Rapier Switch Software Release 2.2.1 C613-02013-00 Rev A

Image 57

Allied Telesis C613-02013-00 manual IGMP is enabled and disabled using the commands

Contents

USER GUIDE RAPIER SWITCHAll trademarks are the property of their respective owners Rapier Switch User Guide Document Number C613-02013-00 REV ACHAPTER 3 Operating the Switch ContentsCHAPTER 4 Layer 2 Switching IntroductionDocumentation Roadmap CHAPTER 5 Layer 3 SwitchingWhy Read This User Guide? IntroductionChapter Technical support Where To Find More InformationSwitching Features What Can the Rapier Switch Do?Routing Features See “Enable AT-RPFL3Upgrade Feature Licence” on page Advanced Feature Licence AT-RPFL3UpgradeOptional Features Command Line Interface Simple SwitchingGetting Started ChapterGiving the Switch an IP Address Entering CommandsLogging In Enabling the GUI Enable AT-RPFL3Upgrade Feature LicenceStarting the GUI Graphical User InterfaceUsing help mode ConfiguringNavigating Changing your password TroubleshootingMonitoring ExitingUser Privileges Operating the SwitchFile Subsystem ChapterFigure 3 Example output from the SHOW FILE command Online CLI HelpSaving Configuration Entered with the GUI Configuration ScriptsEditor Saving Configuration Entered with the CLIInstall Information Figure 6 Example output from the SHOW INSTALL command OFFICER privilegeReleases and Patches into the Switch To install a compressed release Example Install Software Upgrade for Rapier SwitchSoftware Reference SNMP and MIBswhere interface is the name of an interface, such as vlan11 Switch Ports Layer 2 SwitchingEnabling and Disabling Switch Ports ChapterFigure 8 Example output from the SHOW SWITCH PORT command To display information about switch ports, use the commandTable 3 Parameters in the output of the SHOW SWITCH PORT command ParameterLayer 2 Switching Autonegotiation of Port Speed and Duplex ModeTable 3 Parameters in the output of the SHOW SWITCH PORT command Parameter10/100 Ethernet switch ports Port TrunkingTable 4 Autonegotiation preferences for Ethernet ports PreferenceTo display information about trunks on the switch, use the command Packet Storm Protection SHOW SWITCH PORT=port-list Port MirroringSET SWITCH MIRROR=NONEport SET SWITCH PORT=port-listALL MIRROR=NONERXTXBOTHPort security Virtual LANs A VLAN can contain a mixture of VLAN tagged and untagged ports Creating VLANs Without VLAN Tags Static and dynamic VLANsMarketing VLAN Switch Training VLAN Figure 10 Example output from the SHOW VLAN command Layer 2 SwitchingTable 5 Parameters displayed in the output of the SHOW VLAN command ParameterVLAN Tagging VLANs to be used with VLAN tags are created and destroyed in the same way as VLANs with only untagged ports, by using the commands Figure 11 Tagged VLANs Summary of VLAN Tagging RulesLayer 2 Switching Process Generic VLAN Registration Protocol GVRPThe Ingress Rules The Learning Process The Forwarding Process Layer 2 Filtering SET SWITCH PORT command, or has been dynamically learned The Egress RulesThis parameter is either “static” indicating the filter is a static because it has been added with the LEARN parameter of theQuality of Service Figure 13 Example output from the SHOW SWITCH QOS commandPriority level Spanning Tree Port States Spanning Tree Protocol STPENABLE STP=stpnameALL DISABLE STP=stpnameALL Configuring STPSHOW STP PORT=port-list ADD STP=stpname VLAN=vlanname2..4094To change the STP priority value, use the command Table 10 Parameters in the output of the SHOW STP command Figure 14 Example output from the SHOW STP commandParameter MeaningForward Delay To display STP port information, use the command To restore default port pathcost and priority, use the commandFigure 15 Example output from the SHOW STP PORT command ParameterFigure 16 Example output from the SHOW STP COUNTER command Layer 2 SwitchingTable 12 Parameters in the output of the SHOW STP COUNTER command ParameterIGMP Snooping Interfaces to Layer 3 ProtocolsIGMP is enabled and disabled using the commands Triggers Description EventParameters The port number of the port which has just come upPage Layer 3 Switching Internet Protocol IPChapter PIM Sparse Mode IP MulticastingRouting Information Protocol RIP Novell IPX Resource Reservation Protocol RSVP AppleTalkADD APPLE PORT INTERFACE=vlan11 SHOW APPLE PORTdisplays information about the interfaces enabled for RSVP Figure The commandLayer 3 Switching Figure 22 Example output from the SHOW RSVP INTERFACE command