Communities

Communities can be written as standard communities (65530:100, or 65530,100) or large communities (65530:0:100) in every community option.

Named communities

The global communities option names communities, so the name can be used in place of the community in any community option. This keeps large configurations readable and lets you change a community in one place.

communities:
  BLACKHOLE: 65535:666
  FROM-CUSTOMER: 65530:0:10
  FROM-PEER: 65530:0:20
  FROM-TRANSIT: 65530:0:30

templates:
  customer:
    add-on-import: [ FROM-CUSTOMER ]
  peer:
    add-on-import: [ FROM-PEER ]
    announce: [ FROM-CUSTOMER ]

peers:
  Transit:
    asn: 64496
    neighbors:
      - 203.0.113.1
    add-on-import: [ FROM-TRANSIT ]
    announce: [ FROM-CUSTOMER ]
    community-prefs:
      BLACKHOLE: 0

Names are supported in these options:

• Global: origin-communities, local-communities, add-on-import, add-on-export and kernel.srd-communities
• Peer: add-on-import, add-on-export, announce, remove-communities, the community lists of prefix-communities and the keys of community-prefs

A name must not itself look like a community, and every name must map to a valid standard or large community. Using a name that isn't defined is an error, since it isn't a valid community either.