Monitor IGMP Snooping

You can run the following commands from any level of the CLI. For more information, see the Extreme SLX-OS Command Reference.

  1. Display all information about IGMP multicast groups for the device, including configured entries for all groups on all interfaces, all groups on specific interfaces, or specific groups on specific interfaces.
    device# show ip igmp groups
    Total Number of Groups: 2
    IGMP Connected Group Membership
    Group Address  Interface Uptime      Expires      Last Reporter   Version
    225.1.1.1      vlan25    00:05:27     00:02:32     25.1.1.1202
    Member Ports: eth 0/24
  2. View snooping configuration information.
    device# show ip igmp snooping
     Vlan ID: 10
     Multicast Router ports:  eth0/1
     Querier - Disabled
     IGMP Operation mode: IGMPv3
     Is Fast-Leave Enabled : Enabled
     Max Response time = 10
     Last Member Query Interval = 1
     Query interval = 125
     Number of Multicast Groups: 0
    
  3. View information about the multicast cache.
    device# show ip multicast snooping mcache
    Flags : V2|V3 : IGMP Receiver, P_G : PIM (*,G) Join, P_SG: PIM (S,G) Join
                     BR : PIM Blocked RPT
     Vlan ID : 10
     -------------
    1     (20.20.20.20, 232.0.0.10 )  22:37:48    NumOIF: 1
            Outgoing Ports:
                    eth0/34        Flags: 0x24 ( V3)  00:00:08/252s
    
  4. Display the IGMP statistics for a VLAN or interface.
    device# show ip igmp statistics vlan 1
     
    IGMP packet statistics for all interfaces in vlan 1:
    IGMP Message type     Edge-Received   Edge-Sent   Edge-Rx-Errors   ISL Received
    Membership Query                  0           0                0              0
    V1 Membership Report              0           0                0              0
    V2 Membership Report              0           0                0              0
    Group Leave                       0           0                0              0
    V3 Membership Report              0           0                0              0
    PIM hello                         0           0                0              0
    
    IGMP Error Statistics:
    Unknown types            0
    Bad Length               0
    Bad Checksum             0
    
  5. Display the Layer 3 IGMP interface configuration information.
    device# show ip igmp interface
    Interface Ve100
    IGMP enabled
    IGMP query interval 30 seconds
    IGMP other-querierinterval 65 seconds
    IGMP query response time 10 seconds
    IGMP last-member query interval 1 seconds
    IGMP immediate-leave disabled
    IGMP querier100.0.0.1(this system)
    IGMP version 2
  6. Display multicast router port information.
    device# show ip igmp snooping mrouter vlan 10
    Vlan     Interface    Expires (Sec)
    10       eth0/4       250
    10       eth0/1       238
    
  7. Display the SSM mapping with the prefix list name and source address details.
    device# show ip igmp ssm-map 
    
    +------------------------------------+-------------------+
    |         PrefixList Name            |   Source Address  |
    +------------------------------------+-------------------+
       ssm-map-230-to-232                 203.0.0.10
      ssm-map-233-to-234                 204.0.0.11