Brocade BigIron RX Series Configuration Guide User Manual
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BigIron RX Series Configuration Guide
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Configuring Multicast Source Discovery Protocol (MSDP)
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The following commands configure a route map. The map matches on source address 10.x.x.x and
any group address. Since the action is deny, the Source-Active filter that uses this route map will
remove the source-group pairs that match this route map from the Source-Active messages to the
neighbor.
BigIron RX(config)# route-map msdp_map deny 1
BigIron RX(config-routemap msdp_map)# match ip address 123
BigIron RX(config-routemap msdp_map)# exit
The following commands enable MSDP and configure MSDP neighbors on port 3/1.
BigIron RX(config)# router msdp
BigIron RX(config-msdp-router)# msdp-peer 2.2.2.99 connect-source loopback 1
BigIron RX(config-msdp-router)# msdp-peer 2.2.2.97 connect-source loopback 1
BigIron RX(config-if-3/1)# exit
The following commands configure the Source-Active filter.
BigIron RX(config)# router msdp
BigIron RX(config-msdp-router)# sa-filter originate route-map msdp_map
This filter removes source-group pairs that match route map msdp_map from Source-Active
messages before sending them to MSDP neighbors.
Syntax: [no] sa-filter originate [route-map <map-tag>]
The route-map <map-tag> parameter specifies a route map. The BigIron RX 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.
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 BigIron RX to receive the matching source-group pairs. A
deny action in the route map drops the matching source-group pairs.
Displaying the differences before and after the source
active filters are applied
This is an example of the Source Actives in the MSDP cache that will be displayed before the filter is
applied.
BigIron RX #show ip msdp sa
Total 50 entries
Index SourceAddr GroupAddr Age
1 (117.1.0.60, 224.200.1.40), RP:2.2.2.2, Age:0
2 (117.1.0.33, 224.200.1.13), RP:2.2.2.2, Age:0
3 (117.1.0.47, 224.200.1.27), RP:2.2.2.2, Age:0
4 (117.1.0.20, 224.200.1.0), RP:2.2.2.2, Age:0
5 (117.1.0.61, 224.200.1.41), RP:2.2.2.2, Age:0
6 (117.1.0.34, 224.200.1.14), RP:2.2.2.2, Age:0
7 (117.1.0.48, 224.200.1.28), RP:2.2.2.2, Age:0
8 (117.1.0.21, 224.200.1.1), RP:2.2.2.2, Age:0
9 (117.1.0.62, 224.200.1.42), RP:2.2.2.2, Age:0
10 (117.1.0.35, 224.200.1.15), RP:2.2.2.2, Age:0
11 (117.1.0.49, 224.200.1.29), RP:2.2.2.2, Age:0
12 (117.1.0.22, 224.200.1.2), RP:2.2.2.2, Age:0
13 (117.1.0.63, 224.200.1.43), RP:2.2.2.2, Age:0