[ en ]  [ fr ]  [ es ]  [ it ]  [ de ] > home   > sitemap
Overview
Network Topology
BGP Policies
Peer
Customer
Tools
Peering
Receivable Communities

Customers may influence nLayer routing policies by a number of community tags which may be set on routes which they announce. These tags can control the propagation of routes, adjust the localpref assigned to them, and even null route traffic.

Announced Communities

All routes announced to customers are tagged with the following information:

4436:TCRI

T The type of relationship that the route was learned through.

C The continent where the route was learned.

R The region where the route was learned, if in the US.

I Internal usage only.

IRR Filtering

All customers announcements are filtered against Internet Routing Registry (IRR) databases. BGP speaking customers will be expected to maintain current and correct IRR entries.

All nLayer announcements will be recorded under the as-set AS-NLAYER.


Receivable Communities
Community Action
4436:1 Prepend 4436 to route
4436:2 Prepend 4436 4436 to route
4436:3 Prepend 4436 4436 4436 to route
4436:50 Set local preference to 50
4436:100 Set local preference to 100
4436:150 Set local preference to 150
4436:200 Set local preference to 200
4436:250 Set local preference to 250
4436:300 Set local preference to 300
4436:555 Null route (discard) traffic
4436:666 Do not export to anyone
4436:777 Do not export to transits
4436:888 Do not export to peers
4436:999 Do not export to customers

Special Communities
Community Action
ASN:1 Prepend 4436 to ASN
ASN:2 Prepend 4436 4436 to ASN
ASN:3 Prepend 4436 4436 4436 to ASN
ASN:666 Do not announce to ASN

Announced Communities
Value Type Continent US Region
1 Public Peer North America NYC
2 Private Peer Europe IAD
3 Transit Asia ATL
4 Customer Australia ORD
5 Internal South America KCY
6 Middle East DFW
7 SEA
8 SJC
9 LAX

Local Preferences
Localpref Description
50 Depreferenced transit route
100 Default transit route
150 Depreferenced peering route
200 Default peering route
250 Depreferenced customer route
300 Default customer route
400 Default internal route
  Print This Page
To learn more about how nLayer can help your business, please
contact our sales representatives.
Home > Network  > BGP Policies  > Customer