BGP Communities
BGP Communities
Overview of BGP community strings for AS203314 traffic engineering, including internal, control communities, and codes.
AS203314 BGP Communities
Hats Network (AS203314) uses a comprehensive BGP community structure to help network operators manage their routing policies effectively.
Quick Reference
| Category | Community | Purpose | Details |
|---|---|---|---|
| Origin | 203314:110:XX | Route source type | See Origin → |
| PoP | 203314:120:XXX | Learned at PoP | See PoP-Based → |
| PoP Pass | 203314:125:XXX | Passed through PoP | See PoP-Based → |
| Region | 203314:130:XX | Learned in region | See Region-Based → |
| Region Pass | 203314:135:XX | Passed through region | See Region-Based → |
| Blackhole | 203314:0:666 | Do not announce | See Blackhole → |
| No Upstream | 203314:1:0 | Do not send to upstream | See Propagation → |
| No Peering | 203314:1:1 | Do not send to peering | See Propagation → |
| No Customer | 203314:1:2 | Do not send to downstream | See Propagation → |
| No Cross-Region | 203314:2:1 | Keep within region | See Geo Restrictions → |
| No Cross-PoP | 203314:2:2 | Keep within PoP | See Geo Restrictions → |
| No Region | 203314:201:XX | Exclude region | See Geo Restrictions → |
| No PoP | 203314:202:XXX | Exclude PoP | See Geo Restrictions → |
| Prepend 1x | 203314:220:1 | Prepend AS 1 time | See Path Prepending → |
| Prepend 2x | 203314:220:2 | Prepend AS 2 times | See Path Prepending → |
| Prepend 3x | 203314:220:3 | Prepend AS 3 times | See Path Prepending → |
| Prepend 4x | 203314:220:4 | Prepend AS 4 times | See Path Prepending → |
| Prepend 5x | 203314:220:5 | Prepend AS 5 times | See Path Prepending → |
Community Categories
Internal Communities
Route origin types, PoP locations, and region codes for identifying where routes are learned.
Control Communities
Traffic engineering communities for blackhole, propagation control, and path prepending.
PoP Codes
3-digit codes for each Point of Presence used in location-based communities.
Region Codes
2-digit geographic region codes for area-based routing policies.
Usage Examples
Common Scenarios
- Keep traffic local:
203314:2:1 # Do not send to other regions- Deprioritize upstream:
203314:220:3 # Prepend 3x- Exclude specific PoP:
203314:202:253 # Do not send to AMS