Displaying MLD Snooping Information

You can use various show commands to view information about MLD snooping.

Use one of the following commands to view MLD snooping information. The commands do not need to be entered in the specified order. Using these commands is optional and they can be entered in any order. For more information on the full list of show ipv6 multicast commands, refer to the Ruckus FastIron Command Reference
  1. Enter the show ipv6 multicast traffic command to display status information about MLD snooping traffic.
    
    device> show ipv6 multicast traffic
    
    MLD snooping: Total Recv: 32208, Xmit: 166
    Q: query, Qry: general Q, G-Qry: group Q, GSQry: group-source Q, Mbr: member
    Recv    QryV1    QryV2    G-Qry    GSQry    MbrV1    MbrV2     Leave
    VL1         0        0        0        0    31744      208       256
    VL70        0        0        0        0        0        0         0
    Recv     IsIN     IsEX     ToIN     ToEX    ALLOW    BLOCK   Pkt-Err
    VL1      1473    31784        0        1        1        7         0
    VL70        0        0        0        0        0        0         0
    Send    QryV1    QryV2    G-Qry    GSQry    MbrV1    MbrV2
    VL1         0        0      166        0        0        0
    VL70        0        0        0        0        0        0
    
  2. Enter the show ipv6 multicast vlan command and specify a VLAN to display MLD snooping information for the specified VLAN.
    device> show ipv6 multicast vlan 11 
    
    Version=1, Intervals: Query=300, Group Age=620, Max Resp=10, Other Qr=605,
    Leave Wait=2, Robustness=2
        router ports: 1/36(120) 2001:DB8::2e0:52ff:fe00:9900,
      My Query address: fe80::ce4e:24ff:fe6f:980 (link-local)
      1/26 has 2 grp, non-QR (passive), cfg V1
      1/26 has 2 grp, non-QR (passive), cfg V1
        group: ff10:1234::5679, life = 100
        group: ff10:1234::5678, life = 100
      1/35 has 0 grp, non-QR (QR=2001:DB8::2e0:52ff:fe00:9900, age=20), dft V2 trunk
  3. Enter the show ipv6 multicast error command to display information about possible MLD snooping errors.
    
    device> show ipv6 multicast error
    
    snoop SW processed pkt: 173, up-time 160 sec
    
  4. To display default, maximum, current, and configured values for system maximum parameters, use the show default values command. The following output example does not show complete output; it shows only MLD group values.
    
    device> show default values
    
    System Parameters     Default    Maximum    Current    Configured
    MLD-snoop-group-addr  4096       8192       5000       5000      
    
  5. Enter the show ipv6 multicast group command to display information about MLD snooping groups.
    
    device> show ipv6 multicast group
    
    p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no
    VL1 : 263 grp, 263 grp-port, tracking_enabled
          group                                    p-port ST QR life mode source
    1     ff0e::ef00:a0e3                          1/1/7  N  Y  120  EX   0
    2     ff01::1:f123:f567                        1/1/9  N  Y       IN   1
      
    In this example, an MLDv1 group is in EXCLUDE mode with a source of 0. The group excludes traffic from the 0 (zero) source list, which actually means that all traffic sources are included.
  6. Enter the show ipv6 multicast group command with the detail keyword, and specify a group address, to display detailed information about an MLD snooping group.
    
    device> show ipv6 multicast group ff0e::ef00:a096 detail
    
    Display group ff0e::ef00:a096 in all interfaces in details.
    p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no
    VL1 : 1 grp, 1 grp-port, tracking_enabled
          group                                    p-port ST QR life mode source
    1     ff0e::ef00:a096                          1/1/7  N  Y  100  EX   0
        group: ff0e::ef00:a096, EX, permit 0 (source, life):
          life=100, deny 0:
    
  7. If tracking and fast leave are enabled, you can display the list of clients for a particular group by entering the Enter the show ipv6 multicast group command with the tracking keyword.
    
    device> show ipv6 multicast group ff0e::ef00:a096 tracking
    
    Display group ff0e::ef00:a096 in all interfaces with tracking enabled.
    p-:physical, ST:static, QR:querier, EX:exclude, IN:include, Y:yes, N:no
    VL1 : 1 grp, 1 grp-port, tracking_enabled
          group                                    p-port ST QR life mode source
    1     ff0e::ef00:a096                          1/1/7  N  Y  80   EX   0
        receive reports from 1 clients: (age)
          (2001:DB8::1011:1213:1415 60)
    
  8. The MLD snooping mcache contains multicast forwarding information for VLANs. Enter the show ipv6 multicast mcache command to display information in the multicast forwarding mcache.
    
    device> show ipv6 multicast mcache
    
    Example: (S G) cnt=: (S G) are the lowest 32 bits, cnt: SW proc. count
        OIF: 1/1/22 TR(1/1/32,1/1/33), TR is trunk, 1/1/32 primary, 1/1/33 output
    vlan 1, has 2 cache
    1    (abcd:ef50 0:100), cnt=121
         OIF: 1/1/11 1/1/9
         age=0s up-time=120s ipmc=4130 (ref-cnt=1)
    2    (abcd:ef50 0:101), cnt=0
         OIF: entire vlan
         age=0s up-time=0s ipmc=8191 (ref-cnt=1)
    vlan 70, has 0 cache
    
  9. Enter the show ipv6 multicast resource command to display information about the software resources used.
    
    device> show ipv6 multicast resource
    
                          alloc in-use  avail get-fail    limit  get-mem  size init
    mld group               512      9    503        0    32000      272    28  256
    mld phy port           1024     16   1008        0   200000      279    21 1024
    snoop group hash        512      9    503        0    59392      272    20  256
    .... Entries deleted
    total pool memory 194432 bytes
    has total 1 forwarding hash
    Available ipmc: 4061