For traditional BGP communities, the offered options are:
Do not announce a prefix to a certain peer: 0: <peer-as>
Announce a prefix to a certain peer: 50263: <peer-as>
Do not announce a prefix to any peer: 0:50263
Announce a prefix to all peers: 50263:50263
Prepend to certain peer once: 65001: <peer-as>
Prepend to certain peer twice: 65002: <peer-as>
Prepend to certain peer three times: 65003: <peer-as>
Blackhole traffic to the announced prefix (only /32): 50263:666
Please ensure your router accepts any prefix marked by 50263:666 community (you can drop traffic to those prefixes on your sidel).
For Large communities, the offered options are as below:
Do not announce a certain prefix to peer-as: 50263:0: <peer-as>
Announce a certain prefix to a certain peer: 50263:1: <peer-as>
Do not announce a certain prefix to any peer: 50263:0:0
Prepend to certain peer once: 50263:65001: <peer-as>
Prepend to certain peer twice: 50263:65002: <peer-as>
Prepend to certain peer three times: 50263:65003: <peer-as>