Chapter 24 Configuring IGMP Snooping and MVR

Configuring MVR

 

Command

Purpose

Step 3

 

 

mvr group ip-address [count]

Configure an IP multicast address on the switch or use the count parameter to

 

 

configure a contiguous series of MVR group addresses (the range for count is

 

 

1 to 256; the default is 1). Any multicast data sent to this address is sent to all

 

 

source ports on the switch and all receiver ports that have elected to receive

 

 

data on that multicast address. Each multicast address would correspond to

 

 

one television channel.

Step 4

 

 

mvr querytime value

(Optional) Define the maximum time to wait for IGMP report memberships

 

 

on a receiver port before removing the port from multicast group membership.

 

 

The value is in units of tenths of a second. The range is 1 to 100, and the

 

 

default is 5 tenths or one-half second.

Step 5

 

 

mvr vlan vlan-id

(Optional) Specify the VLAN in which multicast data is received; all source

 

 

ports must belong to this VLAN. The VLAN range is 1 to 1001 and 1006 to

 

 

4094. The default is VLAN 1.

 

 

 

Step 6 mvr mode {dynamic compatible}

(Optional) Specify the MVR mode of operation:

 

 

dynamic—Allows dynamic MVR membership on source ports.

 

 

compatible—Is compatible with Catalyst 3500 XL and Catalyst 2900 XL

 

 

switches and does not support IGMP dynamic joins on source ports.

 

 

The default is compatible mode.

Step 7

 

 

end

Return to privileged EXEC mode.

 

 

 

Step 8 show mvr or show mvr members

Verify the configuration.

Step 9

 

 

copy running-config

(Optional) Save your entries in the configuration file.

 

startup-config

 

 

 

 

To return the switch to its default settings, use the no mvr [mode group ip-address querytime vlan] global configuration commands.

This example shows how to enable MVR, configure the group address, set the query time to 1 second

(10 tenths), specify the MVR multicast VLAN as VLAN 22, and set the MVR mode as dynamic:

Switch(config)# mvr

Switch(config)# mvr group 228.1.23.4

Switch(config)# mvr querytime 10

Switch(config)# mvr vlan 22

Switch(config)# mvr mode dynamic

Switch(config)# end

You can use the show mvr members privileged EXEC command to verify the MVR multicast group addresses on the switch.

Configuring MVR Interfaces

Beginning in privileged EXEC mode, follow these steps to configure Layer 2 MVR interfaces:

 

 

Command

Purpose

 

 

 

 

 

Step 1

configure terminal

Enter global configuration mode.

 

 

 

 

 

Step 2

mvr

Enable MVR on the switch.

 

 

 

 

 

 

 

 

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

 

 

 

 

24-22

 

 

OL-9775-02

 

 

 

 

 

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Cisco Systems 3750E manual Configuring MVR Interfaces, 24-22