3Com Switch 8800 Advanced Software V5 Configuration Guide

536 CHAPTER 40: IGMP CONFIGURATION
<SwitchA> system-view
[SwitchA] multicast routing-enable
[SwitchA] interface vlan-interface 100
[SwitchA-Vlan-interface100] igmp enable
[SwitchA-Vlan-interface100] igmp version 2
[SwitchA-Vlan-interface100] pim dm
[SwitchA-Vlan-interface100] quit
# Enable IP multicast routing on Switch B, and enable IGMP (version 2) and
PIM-DM on Vlan-interface200.
<SwitchB> system-view
[SwitchB] multicast routing-enable
[SwitchB] interface vlan-interface 200
[SwitchB-Vlan-interface200] igmp enable
[SwitchB-Vlan-interface200] igmp version 2
[SwitchB-Vlan-interface200] pim dm
[SwitchB-Vlan-interface200] quit
# Enable IP multicast routing on Switch C, and enable IGMP (version 2) and
PIM-DM on Vlan-interface200.
<SwitchC> system-view
[SwitchC] multicast routing-enable
[SwitchC] interface vlan-interface 200
[SwitchC-Vlan-interface200] igmp enable
[SwitchC-Vlan-interface200] igmp version 2
[SwitchC-Vlan-interface200] pim dm
[SwitchC-Vlan-interface200] quit
3 Verify the configuration
Carry out the display igmp interface command to view the IGMP configuration
and running status on each switch interface. For example:
# View IGMP information on Vlan-interface200 of Switch B.
[SwitchB] display igmp interface vlan-interface 200
Vlan-interface200(10.110.2.1):
IGMP is enabled
Current IGMP version is 2
Value of query interval for IGMP(in seconds): 60
Value of other querier present interval for IGMP(in seconds): 125
Value of maximum query response time for IGMP(in seconds): 10
Querier for IGMP: 10.110.2.1 (this router)
Total 1 IGMP Group reported
Troubleshooting IGMP
No Member Information
on the Receiver-Side
Device
Symptom
When a host sends a report for joining multicast group G, there is no member
information of the multicast group G on the device closest to that host.