Dell PowerEdge FN I/O Module Configuration Guide 9.10(0.0)

In addition to permitting or denying routes based on the values of the COMMUNITY attributes, you can manipulate the COMMUNITY attribute value and send the COMMUNITY attribute with the route information.

1. Enter ROUTE-MAP mode and assign a name to a route map. CONFIGURATION mode route-map map-name [permit | deny] [ sequence-number]
2. Configure a set filter to delete all COMMUNITY numbers in the IP community list. CONFIG-ROUTE-MAP mode set comm-list community-list-name delete OR set community { community-number | local-as | no-advertise | no-export | none} Configure a community list by denying or permitting specific community numbers or types of community.
   • community-number: use AA:NN format where AA is the AS number (2 or 4 Bytes) and NN is a value specific to that autonomous system.
   • local-AS: routes with the COMMUNITY attribute of NO_EXPORT_SUBCONFED and are not sent to EBGP peers.
   • no-advertise: routes with the COMMUNITY attribute of NO_ADVERTISE and are not advertised.
   • no-export: routes with the COMMUNITY attribute of NO_EXPORT.
   • none: remove the COMMUNITY attribute.
   • additive: add the communities to already existing communities.
3. Return to CONFIGURATION mode. CONFIG-ROUTE-MAP mode exit
4. Enter the ROUTER BGP mode. CONFIGURATION mode router bgp as-number
5. Apply the route map to the neighbor or peer group’s incoming or outgoing routes. CONFIG-ROUTER-BGP mode neighbor { ip-address | peer-group-name} route-map map-name {in | out}

Dell>show ip bgp community
                                 BGP table version is 3762622, local router ID is 10.114.8.48
                                 Status codes: s suppressed, d damped, h history, * valid, > best, i - internal
                                 Origin codes: i - IGP, e - EGP, ? - incomplete
                                 
                                 Network            Next Hop  Metric  LocPrf Weight Path
                                 * i 3.0.0.0/8      195.171.0.16      100    0      209 701 80 i
                                 *>i 4.2.49.12/30   195.171.0.16      100    0      209 i
                                 * i 4.21.132.0/23  195.171.0.16      100    0      209 6461 16422 i
                                 *>i 4.24.118.16/30 195.171.0.16      100    0      209 i
                                 *>i 4.24.145.0/30  195.171.0.16      100    0      209 i
                                 *>i 4.24.187.12/30 195.171.0.16      100    0      209 i
                                 *>i 4.24.202.0/30  195.171.0.16      100    0      209 i
                                 *>i 4.25.88.0/30   195.171.0.16      100    0      209 3561 3908 i
                                 *>i 6.1.0.0/16     195.171.0.16      100    0      209 7170 1455 i
                                 *>i 6.2.0.0/22     195.171.0.16      100    0      209 7170 1455 i
                                 *>i 6.3.0.0/18     195.171.0.16      100    0      209 7170 1455 i
                                 --More--