BGP Communities

Atlantic Metro utilizes BGP communities attached to every route to help determine
how the route was learned and to manipulate traffic flows.

For more information please contact us at support@atlanticmetro.net

Routes residing on the Atlantic Metro network will be tagged to indicate their route type, and location where the route was learned. They will be tagged in the following format:

29838:TRSLL

T Route Type
R Region
S Subregion
LL Location


Community Matrix
Route Type
Region
Subregion
1
Transit
North America
North East
2
Public Peer
Europe
North
3
Private Peer
Asia
North West
4
Customer
 
East
5
Internal
 
Central
 
 
 
West
 
 
 
South East
 
 
 
South
 
 
 
South West

All routes within the Atlantic Metro network carry a local preference as follows
45 Depreferred Transit 
50 Standard Transit 
55 Preferred Transit
75 Depreferred Peering
80 Standard Peering
85 Preferred Peering
100 Depreferred Customer
120 Standard Customer or AMC Originated 

Customer BGP communities
29838:10
Backup Route AMC will re-advertise routes tagged with this community to service provider partners with their respective 'Backup' community. AMC will still prefer the route internally with a local-preference of 100
29838:50
Decrease Local Pref Decrease local-preference within AMCs network to 50
29838:100
Decrease Local Pref Decrease local-preference within AMCs network to 100
29838:666
Blackhole Route Announce any /32 (IPv4) or /128 (IPv6) to black hole the given IP within AMCs network, and with service provider partner networks

Carrier No-Export Prepend 1x Prepend 2x Prepend 3x
AMC Backbone
29838:0000
29838:0001
29838:0002
29838:0003
AMC All Egress
29838:5000
29838:5001
29838:5002
29838:5003
All Transit
29838:1000
29838:1001
29838:1002
29838:1003
NTT
2914:1000
2914:1001
2914:1002
2914:1003
Telia
1299:1000
1299:1001
1299:1002
1299:1003
Cogent
174:1000
174:1001
174:1002
174:1003
GTT
3257:1000
3257:1001
3257:1002
3257:1003
All Peering
29838:2000
29838:2001
29838:2002
29838:2003
NYIIX
29838:2100
29838:2101
29838:2102
29838:2103
Equinix NY
29838:2200
29838:2201
29838:2202
29838:2203
Equinix Chicago
29838:2300
29838:2301
29838:2302
29838:2303
Equinix Miami
29838:3000
29838:3001
29838:3002
29838:3003
Any2 LAX
29838:2500
29838:2501
29838:2502
29838:2503
DE-CIX NY
29838:2600
29838:2601
29838:2602
29838:2603
DE-CIX Frankfurt via LGA12
29838:2700
29838:2701
29838:2702
29838:2703
DE-CIX Frankfurt via FRA1
29838:3100
29838:3101
29838:3102
29838:3103
DE-CIX Dallas
29838:2800
29838:2801
29838:2802
29838:2803
FL-IX
29838:2900
29838:2901
29838:2902
29838:2903


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