About

BGP communities provide additional capability for tagging routes and for modifying BGP routing policy. ERA-IX supports the most used (large) BGP communities to influence routing on our IXP.

Applied

These tags are set by our routers which may be used to execute decisions on your end.

IRR Filtering
  • 206221:2:1 = IRR valid
  • 206221:2:2 = IRR invalid

RPKI Validation
  • 206221:3:1 = RPKI valid
  • 206221:3:2 = RPKI not found
  • 206221:3:3 = RPKI invalid

Accepted

The following communities are accepted by our routers to influence routing policy.

Filtering
  • 206221:0:x = Do not announce to peer x
  • 206221:0:0 = Do not announce to any peer.
  • 206221:0:x = Announce to peer x (override 0:206221)

Prepending
  • 206221:101:x = prepend once to peer X
  • 206221:102:x = prepend twice to peer X
  • 206:221:103:x = prepend thrice to peer X