Configuration Guide User guide

FastIron Configuration Guide 1565
53-1002494-02
Multicast Source Discovery Protocol (MSDP)
NOTE
The default action rule for route-map is to deny all routes that are not explicitly permitted. If you
configure a “deny” route map but want to permit other routes that do not match the rule, configure
an “empty” permit route map, as shown in the following example.
Brocade
(config)#route-map abc deny 10
Brocade(config-routemap abc)#match metric 20
Brocade(config-routemap abc)#route-map abc permit 20
Without the last line in the above example, all routes would be denied.
The following commands enable MSDP and configure the MSDP neighbors on port 3/1.
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.
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.
Brocade(config)# router msdp
Brocade(config-msdp-router)# msdp-peer 2.2.2.99 connect-source loopback 1
Brocade(config-msdp-router)# msdp-peer 2.2.2.97 connect-source loopback 1
Brocade(config-msdp-router)# msdp-peer 2.2.2.96 connect-source loopback 1
Brocade(config-msdp-router)# exit
Brocade(config)# router msdp
Brocade(config-msdp-router)# sa-filter in 2.2.2.99
Brocade(config-msdp-router)# sa-filter in 2.2.2.97 route-map msdp_map
Brocade(config-msdp-router)# sa-filter in 2.2.2.96 route-map msdp2_map
rp-route-map msdp2_rp_map