C
HAPTER
38
| Multicast Filtering Commands
MLD Snooping
– 1232 –
◆ When set to “router-port,” any received IPv6 multicast packets that
have not been requested by a host are forwarded to ports that are
connected to a detected multicast router.
EXAMPLE
Console(config)#ipv6 mld snooping unknown-multicast mode flood
Console(config)#
ipv6 mld snooping
version
This command configures the MLD snooping version. Use the no form to
restore the default.
SYNTAX
ipv6 mld snooping version {1 | 2}
1 - MLD version 1.
2 - MLD version 2.
DEFAULT SETTING
Version 2
COMMAND MODE
Global Configuration
EXAMPLE
Console(config)#ipv6 mld snooping version 1
Console(config)#
ipv6 mld snooping
vlan immediate-
leave
This command immediately deletes a member port of an IPv6 multicast
service when a leave packet is received at that port and immediate-leave is
enabled for the parent VLAN. Use the no form to restore the default.
SYNTAX
[no] ipv6 mld snooping vlan vlan-id immediate-leave
vlan-id - A VLAN identification number. (Range: 1-4094)
DEFAULT SETTING
Disabled
COMMAND MODE
Global Configuration
COMMAND USAGE
◆ If MLD immediate-leave is not used, a multicast router (or querier) will
send a group-specific query message when an MLD group leave
message is received. The router/querier stops forwarding traffic for that
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