Brocade Communications Systems Upgrade Pef IPMC5000PEF IPMC5000PEF User Manual

Filtering advertised Source-Active messages

The following example configures the device to advertise all source-group pairs except the ones that
have source address 10.x.x.x.

The following commands configure extended ACLs to be used in the route map definition.

device(config)# access-list 123 permit ip 10.0.0.0 0.255.255.255 any

device(config)# access-list 125 permit ip any any

The following commands use the above ACLs to configure a route map which denies source-group with
source address 10.x.x.x and any group address, while permitting everything else.

device(config)# route-map msdp_map deny 1

device(config-routemap msdp_map)# match ip address 123

device(config-routemap msdp_map)# exit

device(config)# route-map msdp_map permit 2

device(config-routemap msdp_map)# match ip address 125

device(config-routemap msdp_map)# exit

The following commands configure the Source-Active filter.

device(config)# router msdp

device(config-msdp-router)# sa-filter originate route-map msdp_map

To specify VRF information, enter the following commands at the MSDP VRF configuration level.

device(config)# router msdp vrf blue

device(config-msdp-router-vrf blue)# sa-filter originate route-map msdp_map

Syntax: [no] sa-filter originate [route-map map-tag ]

The route-mapmap-tag parameter specifies a route map. The router applies the filter to source-group
pairs that match the route map. Use the match ip addressacl-id command in the route map to specify
an extended ACL that contains the source and group addresses.

NOTE
The default filter action is deny. If you want to permit some source-group pairs, use a route map. A
permit action in the route map allows the device to advertise the matching source-group pairs. A deny
action in the route map drops the source-group pairs from advertisements.

Displaying MSDP information

You can display the following MSDP information:

•

Summary information - the IP addresses of the peers, the state of the device MSDP session with
each peer, and statistics for keepalive, source active, and notification messages sent to and
received from each of the peers

•

VRF Information - Summary information for a specific VRF

•

Peer information - the IP address of the peer, along with detailed MSDP and TCP statistics

•

Source Active cache entries - the source active messages cached by the router.

Displaying summary information

To display summary MSDP information, enter the CLI command.

Brocade(config)#show ip msdp vrf blue summary

MSDP Peer Status Summary

Filtering advertised Source-Active messages