// BGP COMMUNITIES
Tag it, steer it.
19 communities · served from /api/v1/communities
Large communities, supported on every session with AS214205. This page, the API and the filters running on our routers all read the same definition — so what you see here is what the router actually does, not a copy of it someone remembered to update.
// INFORMATIONAL
We tag these on the routes we send you, so you can see where each one came from.
| community | direction | meaning |
|---|---|---|
| 214205:1:1 | outbound | Learned from upstream (transit) |
| 214205:1:2 | outbound | Learned from downstream (customer) |
| 214205:1:3 | outbound | Learned from IXP route server |
| 214205:1:4 | outbound | Learned from bilateral peer |
// ADVERTISING
Order matters: the global suppression is evaluated first, then the per-AS exception — so 214205:3:nnn can override 214205:2:0.
| community | direction | meaning |
|---|---|---|
| 214205:2:0 | inbound | Do not advertise anywhere (global) |
| 214205:2:1 | inbound | Do not advertise to upstreams |
| 214205:2:2 | inbound | Do not advertise to downstreams |
| 214205:2:3 | inbound | Do not advertise to IXP route servers |
| 214205:2:4 | inbound | Do not advertise to bilateral peers (PNI) |
| 214205:0:nnn | inbound | Do not advertise to AS nnn |
| 214205:3:nnn | inbound | Advertise to AS nnn (bypass 214205:2:0) |
// PREPENDS
nnn is either a peer ASN or one of the type values below.
| community | direction | meaning |
|---|---|---|
| 214205:11:nnn | inbound | Prepend 1x to AS nnn |
| 214205:12:nnn | inbound | Prepend 2x to AS nnn |
| 214205:13:nnn | inbound | Prepend 3x to AS nnn |
| 214205:21:nnn | inbound | Prepend 1x to type nnn |
| 214205:22:nnn | inbound | Prepend 2x to type nnn |
| 214205:23:nnn | inbound | Prepend 3x to type nnn |
// OTHER
Well-known standard communities, not part of the 214205: scheme.
| community | direction | meaning |
|---|---|---|
| 65535:666 | inbound | Blackhole this prefix — accepted from customers only, for prefixes inside what you are authorised to announce |
| 65535:0 | both | GRACEFUL_SHUTDOWN — honoured on receipt, sets local_pref 0 so the session drains instead of blackholing |
// TYPE VALUES
| 1 | upstream | Upstream (transit) |
| 2 | downstream | Downstream (customer) |
| 3 | ixp-rs | IXP route server |
| 4 | pni | Bilateral peer (PNI) |
These numbers come from the same table the router config is generated from, so a fifth session role cannot end up with two different numbers.
// POPS
from /api/v1/pops
United States
planned
Amsterdam
unreachable
Romania
unreachable
Düsseldorf
unreachable
Hong Kong
unreachable
London
unreachable
São Paulo
unreachable
Warsaw
unreachable
We cannot currently see any POP. That almost always means our management path is broken rather than the network — your sessions are probably fine.
This is a best-effort, unpaid service run on volunteer time. There is no SLA, maintenance happens, and support is people helping when they can.
This scheme is also published at bgp.tools/communities/214205.