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Mvr type – Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) User Manual

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Brocade 6910 Ethernet Access Switch Configuration Guide

477

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23

MVR for IPv4

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.

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

mvr vlan group

command.

Example
The following enables immediate leave on a receiver port.

Console(config)#interface ethernet 1/5

Console(config-if)#mvr domain 1 immediate-leave

Console(config-if)#

mvr type

This command configures an interface as an MVR receiver or source port. Use the no form to
restore the default settings.

Syntax

[no] mvr [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.

Default Setting
The port type is not defined.

Command Mode
Interface Configuration (Ethernet, Port Channel)

Command Usage

A port which is not configured as an MVR receiver or source port can use IGMP snooping to join
or leave multicast groups using the standard rules for multicast filtering.

Receiver ports can belong to different VLANs, but should not normally be configured as a
member of the MVR VLAN. IGMP snooping can also be used to allow a receiver port to
dynamically join or leave multicast groups not sourced through the MVR VLAN. Also, note that
VLAN membership for MVR receiver ports cannot be set to access mode (see the

switchport

mode

command).