Enabling Trace Messages For Mvr Troubleshooting; Igmp Layer 2 Querier; Querier Not Elected - Avaya 8800 Troubleshooting Manual

Multicast feature troubleshooting
2. Check the IGMP group on the multicast router and on the snoop-enabled switch:
3. On the snoop-enabled switch, you can also check the IGMP group using the
4. On the multicast router, check the mroute entries :

Enabling trace messages for MVR troubleshooting

If the preceding information does not address your issue, you can also use the following trace
command to view additional MVR-related information:
trace level 23 <level>

IGMP Layer 2 querier

The following sections provide troubleshooting procedures for the IGMP Layer 2 querier
feature.

Querier not elected

If a querier is not elected, use the following procedure to troubleshoot the issue.
IGMP Layer 2 Querier is based on IGMP snoop, check whether IGMP snoop is enabled
on the VLAN:
config vlan <vid> ip igmp info (CLI)
OR
show ip igmp interface vlan <vid> (ACLI)
370 Troubleshooting
show ip igmp sender (CLI or ACLI)
show ip igmp group (CLI or ACLI)
following command:
show ip igmp multicast-vlan-registration group (CLI or ACLI)
show ip pim mroute (CLI or ACLI)
Comments? infodev@avaya.com
July 2013