Chapter 39: Multicast Filtering Commands
MVR for IPv6
– 1234 –
E
XAMPLE
The following example sets the MVR6 VLAN to VLAN 1:
Console(config)#mvr6 domain 1 vlan 1
Console(config)#
mvr6
immediate-leave
This command causes the switch to immediately remove an interface from
a multicast stream as soon as it receives a leave message for that group.
Use the
no
form to restore the default settings.
S
YNTAX
[
no
]
mvr6 domain
domain-id immediate-leave
[
by-host-ip
]
domain-id
- An independent multicast domain. (Range: 1-5)
by-host-ip
- Specifies that the member port will be deleted only
when there are no hosts joining this group.
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
Interface Configuration (Ethernet, Port Channel)
C
OMMAND
U
SAGE
•
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
command.
E
XAMPLE
The following enables immediate leave on a receiver port.
Summary of Contents for SSE-G2252
Page 42: ...44 General IP Routing on page 627...
Page 603: ...Chapter 16 IP Configuration Setting the Switch s IP Address IP Version 6 609...
Page 883: ...Chapter 24 General Security Measures Port based Traffic Segmentation 894...
Page 989: ...Chapter 30 Congestion Control Commands Automatic Traffic Control Commands 1000 Console...
Page 1007: ...Chapter 33 Address Table Commands 1019...
Page 1137: ...Chapter 38 Quality of Service Commands 1150...