Chapter 43 Configuring MSDP

Configuring MSDP

Configuring an MSDP Mesh Group

An MSDP mesh group is a group of MSDP speakers that have fully meshed MSDP connectivity among one another. Any SA messages received from a peer in a mesh group are not forwarded to other peers in the same mesh group. Thus, you reduce SA message flooding and simplify peer-RPF flooding. Use the ip msdp mesh-groupglobal configuration command when there are multiple RPs within a domain. It is especially used to send SA messages across a domain. You can configure multiple mesh groups (with different names) in a single switch.

Beginning in privileged EXEC mode, follow these steps to create a mesh group. This procedure is optional.

 

Command

Purpose

Step 1

 

 

configure terminal

Enter global configuration mode.

 

 

 

Step 2 ip msdp mesh-group name {ip-address

Configure an MSDP mesh group, and specify the MSDP peer belonging

 

name}

to that mesh group.

 

 

By default, the MSDP peers do not belong to a mesh group.

 

 

For name, enter the name of the mesh group.

 

 

For ip-address name, enter the IP address or name of the MSDP

 

 

peer to be a member of the mesh group.

Step 3

 

 

end

Return to privileged EXEC mode.

Step 4

 

 

show running-config

Verify your entries.

Step 5

 

 

copy running-config startup-config

(Optional) Save your entries in the configuration file.

Step 6

 

 

 

Repeat this procedure on each MSDP peer in the group.

 

 

 

To remove an MSDP peer from a mesh group, use the no ip msdp mesh-groupname {ip-address name} global configuration command.

Shutting Down an MSDP Peer

If you want to configure many MSDP commands for the same peer and you do not want the peer to become active, you can shut down the peer, configure it, and later bring it up. When a peer is shut down, the TCP connection is terminated and is not restarted. You can also shut down an MSDP session without losing configuration information for the peer.

 

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

43-16

OL-9775-02

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Cisco Systems 3750E Configuring an Msdp Mesh Group, Shutting Down an Msdp Peer, Ip msdp mesh-group name ip-address, 43-16