show ipv6 multicast mcache

Displays information in the IPv6 multicast forwarding mcache (multicast listening discovery [MLD]).
Syntax
show ipv6 multicast [ cluster ] mcache [ group-address | vlan vlan-id ]
Parameters
cluster
Specifies a Multi-Chassis Trunking (MCT) cluster.
group-address
Specifies the address of the multicast group.
vlanvlan-id
Specifies a VLAN.
Modes

User EXEC mode

The show ipv6 multicast mcache command displays the following information:

Output Field

Description

(source group):

The source and group addresses of this data stream. (* group) means match group only; (source group) means match both.

For snooping when it is MAC-based, only *,G entries will be present in multicast mcache output for IPv4 and IPv6. S,G entries will not be present.

cnt

The number of packets processed in software.

OIF

The outgoing interface list.

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 the ipv6 multicast mcache-age command.

up-time

The uptime of this mcache in seconds.

l2mc (or ipmc)

The hardware entry which has the list of replication ports.

Note: For ICX 7550, ICX 7650, and ICX 7850 devices, l2mc is replaced with ipmc in the output.

ref-cnt

The number of mcaches using this IPMC.

AgeMask

Stacking unit ID where traffic flow is active (traffic ingression).

HwFailMask

Stacking unit ID where traffic flow is not programmed in the HW. This field is displayed only when there is failure.
Examples

The following example shows information in the multicast forwarding mcache.

device> show ipv6 multicast mcache
    (Example:
(S G) (MAC ADDR) cnt=: SRC and GRP IPv4/IPv6 address,
Multicast Mac address, cnt is number of SW processed packets
OIF: 1/1/22 TR(1/1/32,1/1/33), TR is trunk, 1/1/32 primary, 1/1/33 output
IPv6 Multicast Forwarding Mode: IP
Total Multicast Cache: 2
vlan 300, 2 caches.
1 (2001:300::2 ff1e::3337) (3333.0000.3337) cnt=135
OIF: tag lg1
age=16s up-time=143s, change=143s ipmc=360 (ref-cnt=1)
2 (2001:300::2 ff1e::3333) (3333.0000.3333) cnt=129
OIF: tag lg1
age=28s up-time=143s, change=143s ipmc=360 (ref-cnt=1)

The following example shows information for the IPv6 multicast forwarding mcache, including information for stacking units where traffic flow is active, or where failure occurred. 

device> show ipv6 multicast mcache

(S G) (MAC ADDR) cnt=: SRC and GRP IPv4/IPv6 address,
Multicast Mac address, cnt is number of SW processed packets
OIF: 1/1/22 TR(1/1/32,1/1/33), TR is trunk, 1/1/32 primary, 1/1/33 output
IPv6 Multicast Forwarding Mode: IP
Total Multicast Cache: 2
vlan 300, 2 caches.
1 (2001:300::2 ff1e::3337) (3333.0000.3337) cnt=135
OIF: tag lg1
age=16s up-time=143s, change=143s ipmc=360 (ref-cnt=1)
2 (2001:300::2 ff1e::3333) (3333.0000.3333) cnt=129
OIF: tag lg1
age=28s up-time=143s, change=143s ipmc=360 (ref-cnt=1)
History
Release version Command history
08.0.92 The command output was modified.
09.0.00 The command output was modified so that information for entries to the Layer 3 lookup table is displayed.
10.0.00 The output of this command was updated to include information for stacking units where traffic flow is active, or where failure occurred.
Parent topic: Show Commands