Use the following commands to check IGMP information.
enable
show ip igmp interface [gigabitethernet {slot/port[/sub-port][-slot/port[/sub-port]][,...]}][vlan <1-4059>[vrf WORD<1–16>][vrfids WORD<0–512>]
Ensure that the output displays routed-spb under MODE.
show ip igmp cache [vrf WORD<1–16>][vrfids WORD<0–512>]
show ip igmp group [count][member-subnet default|{A.B.C.D/X}][vrf WORD<1–16>][vrfids WORD<0–512>]
show ip igmp sender [count][member-subnet default|{A.B.C.D/X}][vrf WORD<1–16>][vrfids WORD<0–512>]
Display IGMP information for Layer 3 VSN with IP multicast over Fabric Connect:
Switch:#enable Switch:1#show ip igmp interface vrf green ====================================================================================== Igmp Interface - GlobalRouter ====================================================================================== QUERY OPER QUERY WRONG LASTMEM IF INTVL STATUS VERS. VERS QUERIER MAXRSPT QUERY JOINS ROBUST QUERY MODE -------------------------------------------------------------------------------------- V100 125 activ 2 2 0.0.0.0 100 0 0 2 10 routed-spb 1 out of 1 entries displayed
Switch:1#show ip igmp interface vlan 2 ======================================================================================== Vlan Ip Igmp ======================================================================================== VLAN QUERY QUERY ROBUST VERSION LAST PROXY SNOOP SNOOP SSM UPnP FAST FAST ID INTVL MAX MEMB SNOOP ENABLE ORIGIN SNOOP FILTER LEAVE LEAVE RESP QUERY ENABLE ENABLE ENABLE ENABLE PORTS ---------------------------------------------------------------------------------------- 2 125 100 2 2 10 false false RADIUS false true false VLAN SNOOP SNOOP DYNAMIC COMPATIBILITY EXPLICIT UPnP ID QUERIER QUERIER DOWNGRADE MODE HOSTS FILTER ENABLE ADDRESS VERSION TRACKING ADDRESS ---------------------------------------------------------------------------------------- 2 false 0.0.0.0 enable disable disable 192.0.2.3/24
Switch:1# show ip igmp sender vrf vrf1 ======================================================================= IGMP Sender - VRF vrf1 ======================================================================= PORT/ GRPADDR IFINDEX MEMBER MLT STATE L2ISID SCOPEISID DATAISID --------------------------------------------------------------------------- 224.1.1.4 Vlan 10 192.2.0.1 1/18/1 NOTFILTERED 0 10010 16000001 224.1.1.4 Vlan 10 192.2.0.1 1/18/1 NOTFILTERED 0 10010 16000004 224.1.1.6 Vlan 10 192.2.0.1 1/18/1 FILTERED 0 10010 16000010 224.1.1.7 Vlan 10 192.2.0.1 1/18/1 FILTERED 0 10010 16000009 224.1.1.8 Vlan 10 192.2.0.1 1/18/1 NOTFILTERED 0 10010 210 5 out of 5 entries displayed
Switch:1# show ip igmp group vrf green ================================================================================ IGMP Group - GlobalRouter ================================================================================ GRPADDR INPORT MEMBER EXPIRATION TYPE -------------------------------------------------------------------------------- 233.252.0.1 V501-1/16 192.2.0.1 204 Dynamic 233.252.0.2 V501-1/16 192.2.0.1 206 Dynamic 233.252.0.3 V501-1/16 192.2.0.1 206 Dynamic 233.252.0.4 V501-1/16 192.2.0.1 207 Dynamic 233.252.0.5 V501-1/16 192.2.0.1 204 Dynamic 233.252.0.6 V501-1/16 192.2.0.1 209 Dynamic 233.252.0.7 V501-1/16 192.2.0.1 206 Dynamic 233.252.0.8 V501-1/16 192.2.0.1 206 Dynamic 233.252.0.9 V501-1/16 192.2.0.1 211 Dynamic 233.252.0.10 V501-1/16 192.2.0.1 207 Dynamic 10 out of 10 group Receivers displayed Total number of unique groups 10