Chapter 24
| Multicast Filtering Commands
MLD (Layer 3)
– 787 –
show ipv6 mld groups This command displays information on multicast groups active on the switch and
learned through MLD.
Syntax
show ipv6 mld groups [{group-address | interface} [detail] | detail]
group-address - IPv6 multicast group address. (Note that link-local scope
addresses FF02:* are not allowed.)
interface
vlan vlan-id - VLAN ID. (Range: 1-4094)
detail - Displays detailed information about the multicast process and
source addresses when available.
Command Mode
Privileged Exec
Command Usage
To display information about multicast groups, MLD must first be enabled on the
interface to which a group has been assigned using the ipv6 mld command, and
multicast routing must be enabled globally on the system using the ip multicast-
routing command.
Example
The following shows options for displaying MLD group information.
Console#show ipv6 mld groups
Group Address Interface VLAN Uptime Expire
--------------------------------------- --------------- -------- --------
FFEE::101 1 0:1:59 Never
Console#show ipv6 mld groups detail
Interface : VLAN 1
Group : FFEE::101
Uptime : 0h:2m:7s
Group Mode : Include
Last Reporter : FE80::0101
Group Source List:
Source Address Uptime Expire Fwd
--------------------------------------- ----------- ----------- ---
FFEE::0101 0h:0m:12s 0h:0m:0s Yes
Console#
II
Table 157: show ipv6 mld groups - display description
Field Description
Group Address IP multicast group address with subscribers directly attached or
downstream from the switch.
Interface VLAN The interface on the switch that has received traffic directed to the
multicast group address.
Uptime The time elapsed since this entry was created.