burble.dn42 / Network / BGP Communities

BGP Communities

This page describes the use of BGP communities within the network.

DN42 Communities

DN42 Communities are applied both internally and externally, and are used to influence the Routing Policy.

Community   Description
( 64511 : 0 < x < 21 )   Max latency
( 64511 : 20 < x < 30 )   Min bandwidth
( 64511 : 30 < x < 35 )   Min encryption
( 64511 : 40 < x < 54 )   Route Origin

Well Known BGP Communities

The following well known communities are implemented.

Community   Description Action
( 65535 : 65281 )   No Export Prefix should not be exported outside of AS4242422601
( 65535 : 65282 )   No Advertise   Prefix should not be exported to any peers
( 65535 : 65283 )   Local-AS Prefix should not be exported outside of region

burble.dn42 Specific Communities

burble.dn42 implements large BGP communities, with ISO 3166-1 / UNSD country, and UNSD region codes.

Informational Communities

Community   Description
( 4242422601 : 120 : host code )   Route learned on this host
( 4242422601 : 130 : 1 )   Route is a direct peer
( 4242422601 : 140 : DN42 region )   Route learned in this DN42 region