Brocade Communications Systems IPMC5000PEF Manuel D’Utilisation

Clearing the source active cache

To clear the source active cache, enter the following command at the Privileged EXEC level of the CLI.

device# clear ip msdp sa-cache

Syntax: clear ip msdp sa-cache [ ip-addr ]

The command in this example clears all the cache entries. Use the ip-addr variable to clear only the
entries matching either a source or a group.

Clearing the source active cache for a VRF

To clear the MSDP VRF source active cache by entering the following command at the MSDP VRF
configuration level.

device#clear ip msdp sa-cache

 vrf blue

Syntax: clear ip msdp [vrf vrf-name ] sa-cache [ ip-addr ]

Clearing MSDP statistics

To clear MSDP statistics, enter the following command at the Privileged EXEC level of the CLI.

device# clear ip msdp statistics

Syntax: clear ip msdp statistics [ ip-addr ]

The command in this example clears statistics for all the peers. To clear statistics for only a specific
peer, enter the IP address of the peer.

Clearing MSDP VRF statistics

To clear the MSDP VRF statistics by entering the following command.

device# clear ip msdp vrf blue statistics 

Syntax: clear ip msdp [vrf vrf-name ] statistics [ip-addr ]

The command in this example clears statistics for all the peers. To clear statistics for only a specific
peer, enter the IP address of the peer.

The command in this example clears all statistics for all the peers in the VRF "blue".

Configuring MSDP mesh groups

A PIM Sparse domain can have several RPs that are connected to each other to form an MSDP mesh
group. To qualify as a mesh group, the RPs have to be fully meshed; that is, each RP must be
connected to all peer RPs in a domain. (Refer to 

.)

A mesh group reduces the forwarding of SA messages within a domain. Instead of having every RP in a
domain forward SA messages to all the RPs within that domain, only one RP forwards the SA message.
Since an MSDP mesh group is fully meshed, peers do not forward SA messages received in a domain
from one member to any member of the group. The RP that originated the SA or the first RP in a
domain that receives the SA message is the only one that forwards the message to the members of a

Configuring MSDP mesh groups