ECS4110-28T_Management Guide

C HAPTER 40 | Multicast Filtering Commands
MVR for IPv6
– 1312 –
COMMAND USAGE
◆ Immediate leave applies only to receiver ports. When enabled, the
receiver port is immediately removed from the multicast group
identified in the leave message. When immediate leave is disabled, the
switch follows the standard rules by sending a group-specific query to
the receiver port and waiting for a response to determine if there are
any remaining subscribers for that multicast group before removing the
port from the group list.
◆ If the “by-host-ip” option is used, the router/querier will not send out a
group-specific query when an MLDv1/v2 Listener Done message is
received (the same as it would without this option having been used).
Instead of immediately deleting that group, it will look up the record,
and only delete the group if there are no other subscribers for it on the
member port. Only when all hosts on that port leave the group will the
member port be deleted.
◆ Using immediate leave can speed up leave latency, but should only be
enabled on a port attached to only one multicast subscriber to avoid
disrupting services to other group members attached to the same
interface.
◆ Immediate leave does not apply to multicast groups which have been
statically assigned to a port with the mvr6 vlan group command.
EXAMPLE
The following enables immediate leave on a receiver port.
Console(config)#interface ethernet 1/5
Console(config-if)#mvr6 domain 1 immediate-leave
Console(config-if)#
mvr6 type This command configures an interface as an MVR receiver or source port.
Use the no form to restore the default settings.
SYNTAX
[no] mvr6 domain domain-id type {receiver | source}
domain-id - An independent multicast domain. (Range: 1-5)
receiver - Configures the interface as a subscriber port that can
receive multicast data.
source - Configures the interface as an uplink port that can send
and receive multicast data for the configured multicast groups. Note
that the source port must be manually configured as a member of
the MVR6 VLAN using the switchport allowed vlan command.
DEFAULT SETTING
The port type is not defined.