ipv6 mld snooping querier
enable
Activates the MLD snooping querier
function for a VLAN or bridge domain.
Syntax
ipv6 mld snooping querier
enable
no ipv6 mld snooping querier
enable
Command Default
By default, the snooping querier is disabled.
Modes
VLAN or bridge domain configuration mode
Usage Guidelines
The no ipv6 mld snooping querier enable form of the command disables the
querier function.
In a subnet, one multicast router is elected as
an MLD querier. The MLD querier sends out the following types of queries to hosts.
- Multicast Listener General
query: (MLD v1, v2) Asks whether any host is listening to any group.
- Multicast Listener
Group-specific query: (MLD v1, v2) Asks whether any host is listening to
a specific multicast group. This query is sent in response to a host leaving the
multicast group. The router can quickly determine whether any remaining hosts
are interested in the group.
- Multicast Listener Group-and-source-specific query: (MLD v2) Asks whether
any host is listening to group multicast traffic from a specific multicast
source. This query is sent in response to a host indicating that it is not
interested in receiving group-specific multicast traffic from the multicast
source. The router can quickly determine whether any remaining hosts are
interested in receiving group multicast traffic from that source.
Examples
The following example enables the querier function for a VLAN.
device# configure terminal
device(config)# vlan 10
device(config-vlan-10)# ipv6 mld snooping querier ?
Possible completions:
enable Enable snooping querier
device(config-vlan-10)# ipv6 mld snooping querier enable
The following example enables the querier function for a bridge domain.
device# configure terminal
device(config)# bridge-domain 10
device(config-bridge-domain-10)# ipv6 mld snooping querier ?
Possible completions:
enable Enable snooping querier
device(config-bridge-domain-10)# ipv6 mld snooping querier enable
