Filters Are Applied - Dell PowerConnect B-RX Configuration Manual

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
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
14 (117.1.0.36, 224.200.1.16), RP:2.2.2.2, Age:0
15 (117.1.0.50, 224.200.1.30), RP:2.2.2.2, Age:0
16 (117.1.0.23, 224.200.1.3), RP:2.2.2.2, Age:0
17 (117.1.0.64, 224.200.1.44), RP:2.2.2.2, Age:0
18 (117.1.0.37, 224.200.1.17), RP:2.2.2.2, Age:0
19 (117.1.0.51, 224.200.1.31), RP:2.2.2.2, Age:0
20 (117.1.0.24, 224.200.1.4), RP:2.2.2.2, Age:0
21 (117.1.0.65, 224.200.1.45), RP:2.2.2.2, Age:0
22 (117.1.0.38, 224.200.1.18), RP:2.2.2.2, Age:0
23 (117.1.0.52, 224.200.1.32), RP:2.2.2.2, Age:0
BigIron RX Series Configuration Guide
53-1001986-01
Configuring Multicast Source Discovery Protocol (MSDP)
SourceAddr GroupAddr Age
23
625