Brocade Communications Systems IPMC5000PEF Manuel D’Utilisation

ST

Yes indicates that the MLD group was configured as a static group; No means it was learned from
reports.

QR

Yes means the port is a querier port; No means it is not. A port becomes a non-querier port when it
receives a query from a source with a lower source IP address than the port.

life

The number of seconds the group can remain in EXCLUDE mode. An EXCLUDE mode changes to
INCLUDE if it does not receive an IS_EX or TO_EX message during a specified period of time. The
default is 140 seconds. There is no 

life

 displayed in INCLUDE mode.

mode

The current mode of the interface: INCLUDE or EXCLUDE. If the interface is in INCLUDE mode, it admits
traffic only from the source list. If the interface is in EXCLUDE mode, it denies traffic from the source list
and accepts the rest.

source Identifies the source list that will be included or excluded on the interface.

An MLDv1 group is in EXCLUDE mode with a source of 0. The group excludes traffic from 0 (zero)
source list, which actually means that all traffic sources are included.

group

If you requested a detailed report, the following information is displayed:

•

The multicast group address

•

The mode of the group

•

Sources from which traffic will be admitted (INCLUDE) or denied (EXCLUDE) on the interface.

•

The life of each source list.

If you requested a tracking/fast leave report, the clients from which reports were received are identified.

Displaying MLD snooping mcache information

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 mcache values.

device(config)#show default values

System Parameters     Default    Maximum    Current    Configured

mld-snoop-mcache      512        8192       512        512 

The MLD snooping mcache contains multicast forwarding information for VLANs. To display information
in the multicast forwarding mcache, enter the show ipv6 multicast mcache command.

device#show ipv6 multicast mcache

Example: (S G) cnt=: (S G) are the lowest 32 bits, cnt: SW proc. count

    OIF: 1/22 TR(1/32,1/33), TR is trunk, 1/32 primary, 1/33 output

vlan 1, has 2 cache

1    (abcd:ef50 0:100), cnt=121

     OIF: 1/11 1/9

     age=0s up-time=120s vidx=4130 (ref-cnt=1)

2    (abcd:ef50 0:101), cnt=0

     OIF: entire vlan

     age=0s up-time=0s vidx=8191 (ref-cnt=1)

vlan 70, has 0 cache

Syntax: show ipv6 multicast mcache

The following table describes the output from the show ipv6 multicast mcache command. Displaying
software resource usage for VLANs

Displaying MLD snooping mcache information