Quick Reference Guide

PowerConnect B-Series TI24X Configuration Guide 507
53-1002269-02
Multicast Source Discovery Protocol (MSDP)
19
The following commands configure the Source-Active filters.
The sa-filter commands configure the following filters:
• sa-filter in 2.2.2.99 – This command drops all source-group pairs received from neighbor
2.2.2.99.
NOTE
The default action is to deny all source-group pairs from the specified neighbor. If you want to
permit some pairs, use route maps.
• sa-filter in 2.2.2.97 route-map msdp_map – This command drops source-group pairs received
from neighbor 2.2.2.97 if the pairs have source address 10.x.x.x and any group address.
• sa-filter in 2.2.2.96 route-map msdp2_map rp-route-map msdp2_rp_map – This command
accepts all source-group pairs except those associated with RP 2.2.42.3.
CLI syntax
Syntax: [no] sa-filter in <ip-addr> [route-map <map-tag>] [rp-route-map <rp-map-tag>]
The <ip-addr> parameter specifies the IP address of the MSDP neighbor. The filter applies to
Active-Source messages received from this neighbor.
The route-map <map-tag> parameter specifies a route map. The Layer 3 Switch applies the filter to
source-group pairs that match the route map. Use the match ip address <acl-id> command in the
route map to specify an extended ACL that contains the source and group addresses.
The rp-route-map <rp-map-tag> parameter specifies a route map to use for filtering based on
Rendezvous Point (RP) address. Use this parameter if you want to filter Source-Active messages
based on their origin. If you use the route-map parameter instead, messages are filtered based on
source-group pairs but not based on origin. Use the match ip route-source <acl-id> command in
the route map to specify the RP address.
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 Layer 3 Switch to receive the matching source-group pairs.
A deny action in the route map drops the matching source-group pairs.
Filtering advertised source-active messages
The following example configures the Layer 3 Switch to advertise all source-group pairs except the
ones that have source address 10.x.x.x.
PowerConnect(config)# router msdp
PowerConnect(config-msdp-router)# msdp-peer 2.2.2.99 connect-source loopback
1
PowerConnect(config-msdp-router)# msdp-peer 2.2.2.97 connect-source loopback
1
PowerConnect(config-msdp-router)# msdp-peer 22296connect-source loopback
PowerConnect(config)# router msdp
PowerConnect(config-msdp-router)# sa-filter in 2.2.2.99
PowerConnect(config-msdp-router)# sa-filter in 2.2.2.97 route-map msdp_map
PowerConnect(config-msdp-router)# sa-filter in 2.2.2.96 route-map msdp2_map
rp-route-map msdp2_rp_map