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(config)#show ip igmp interface vlan 501
================================================================================
                                  Vlan Ip Igmp
================================================================================
VLAN QUERY QUERY ROBUST VERSION LAST  PROXY  SNOOP  SSM    UPnP   FAST   FAST
ID   INTVL MAX                  MEMB  SNOOP  ENABLE SNOOP  FILTER LEAVE  LEAVE
           RESP                 QUERY ENABLE        ENABLE ENABLE ENABLE PORTS
--------------------------------------------------------------------------------
2    125   100   2      2       10    false  false  false  true  false

VLAN SNOOP   SNOOP           DYNAMIC   COMPATIBILITY EXPLICIT UPnP
ID   QUERIER QUERIER         DOWNGRADE MODE          HOSTS    FILTER
     ENABLE  ADDRESS         VERSION                 TRACKING ADDRESS
--------------------------------------------------------------------------------
501    false   0.0.0.0         enable    disable     disable  239.255.255.250/32

Switch:1# show ip igmp sender vrf green

=======================================================================                          						 IGMP Sender - GlobalRouter
=======================================================================                                      										  PORT/                         
GRPADDR         IFINDEX    MEMBER          MLT        STATE           
----------------------------------------------------------------------
233.252.0.1    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.2    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.3    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.4    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.5    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.6    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.7    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.8    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.9    Vlan 501   192.2.0.1      9/5        NOTFILTERED    
233.252.0.10   Vlan 501   192.2.0.1      9/5        NOTFILTERED    

10 out of 10 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
9036830-00 Rev AD