Chapter 24
| Multicast Filtering Commands
MVR for IPv4
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Command Usage
◆ This command specifies the VLAN through which MVR multicast data is
received. This is the VLAN to which all source ports must be assigned.
◆ The VLAN specified by this command must be an existing VLAN configured
with the vlan command.
◆ MVR source ports can be configured as members of the MVR VLAN using the
switchport allowed vlan command and switchport native vlan command, but
MVR receiver ports should not be statically configured as members of this
VLAN.
Example
The following example sets the MVR VLAN to VLAN 2:
Console(config)#mvr
Console(config)#mvr domain 1 vlan 2
Console(config)#
mvr 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.
Syntax
mvr [domain domain-id] immediate-leave [by-host-ip]
no mvr [domain domain-id] immediate-leave
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.
Default Setting
Disabled
Command Mode
Interface Configuration (Ethernet, Port Channel)
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 IGMPv2/v3 leave message is received (the same as it
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