3com S7906E Instruccion De Instalación

 

1-11 

z 

Description information of MSDP peers  

z 

Name of an MSDP mesh group  

z 

MSDP peer connection retry interval  

With the MSDP peer description information, the administrator can easily distinguish different MSDP 

peers and thus better manage MSDP peers.  

Follow these steps to configure description for an MSDP peer:  

Enter system view 

— 

Enter public instance MSDP 
view or VPN instance MSDP 
view 

msdp [ vpn-instance 
vpn-instance-name ] 

— 

Configure description for an 
MSDP peer  

peer peer-address description 
text 

Required 

No description for MSDP peers 
by default  

 

An AS may contain multiple MSDP peers. You can use the MSDP mesh group mechanism to avoid SA 

message flooding among these MSDP peers and optimize the multicast traffic.  

On one hand, an MSDP peer in an MSDP mesh group forwards SA messages from outside the mesh 

group that have passed the RPF check to the other members in the mesh group; on the other hand, a 

mesh group member accepts SA messages from inside the group without performing an RPF check, 

and does not forward the message within the mesh group either. This mechanism not only avoids SA 

flooding but also simplifies the RPF check mechanism, because BGP or MBGP is not needed to run 

between these MSDP peers.  

By configuring the same mesh group name for multiple MSDP peers, you can create a mesh group 

assign those MSDP peers to that mesh group.  

Follow these steps to create an MSDP mesh group:  

Enter system view 

— 

Enter public instance MSDP 
view or VPN instance MSDP 
view 

msdp [ vpn-instance 
vpn-instance-name ] 

— 

Create an MSDP mesh group 
and assign an MSDP peer to 
that mesh group  

peer peer-address 
mesh-group name 

Required 

An MSDP peer does not belong 
to any mesh group by default