View IGMP Information for Layer 3 VSN Multicast

Use the following commands to check IGMP information.

Procedure

  1. Enter Privileged EXEC mode:

    enable

  2. Display information about the interfaces where IGMP is enabled:

    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.

  3. Display information about the IGMP cache:

    show ip igmp cache [vrf WORD<1–16>][vrfids WORD<0–512>]

  4. Display information about the IGMP group:

    show ip igmp group [count][member-subnet default|{A.B.C.D/X}][vrf WORD<1–16>][vrfids WORD<0–512>]

  5. Display information about the IGMP sender:

    show ip igmp sender [count][member-subnet default|{A.B.C.D/X}][vrf WORD<1–16>][vrfids WORD<0–512>]

Example

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   false   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  239.255.255.250/32

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    V501-9/16       192.2.0.1      204        Dynamic   
233.252.0.2    V501-9/16       192.2.0.1      206        Dynamic   
233.252.0.3    V501-9/16       192.2.0.1      206        Dynamic   
233.252.0.4    V501-9/16       192.2.0.1      207        Dynamic   
233.252.0.5    V501-9/16       192.2.0.1      204        Dynamic   
233.252.0.6    V501-9/16       192.2.0.1      209        Dynamic   
233.252.0.7    V501-9/16       192.2.0.1      206        Dynamic   
233.252.0.8    V501-9/16       192.2.0.1      206        Dynamic   
233.252.0.9    V501-9/16       192.2.0.1      211        Dynamic   
233.252.0.10   V501-9/16       192.2.0.1      207        Dynamic   

10 out of 10 group Receivers displayed

Total number of unique groups 10
9037469-00 Rev AB