Configuration Guide User guide

FastIron Configuration Guide 1625
53-1002494-02
MLD snooping configuration
Displaying MLD snooping mcache information
The MLD snooping mcache contains multicast forwarding information for VLANs. To display
information in the multicast forwarding mcache, enter the ipv6 mld-snooping mcache command.
Syntax: show ipv6 mld-snooping mcache
The following table describes the output from the ipv6 mld-snooping mcache command.
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.
Field Description
(abcd:ef50 0:100): The lowest 32 bits of source and group. It is displayed in XXXX:XXXX hex format. Here XXXX is
a 16-bit hex number.
cnt The number of packets processed in software.
OIF Output interfaces. Entire vlan means that static groups apply to the entire VLAN.
age The mcache age in seconds. The mcache is reset to 0 if traffic continues to arrive, otherwise
it is aged out when it reaches the time defined by ipv6 mld-snooping mcache-age.
uptime The up time of this mcache in seconds.
vidx The vidx is shared among mcaches using the same output interfaces. The vidx specifies the
output port list, which shows the index. Valid range is from 4096 to 8191.
ref-cnt The number of mcaches using this vidx.
Field. Description
Brocade#show ipv6 mld-snooping 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