SEECIX route server Informational BGP Communities

Route Origin

The route server will tag all prefixes with certain BGP Communities to indicate their origin. You can use this information to determine where a certain prefix has been injected into the SEECIX/DE-CIX switching platform. This gives you the possibility to filter routes learned from the route servers based on geographical location. 

Currently we tag the following information:

Switch: Indicates at which switch a prefix has been injected into the SEECIX/DE-CIX platform. We tag the corresponding edge switch of the port.

  • Example: edge01.ath1

Metro: The metropolitan region corresponding to the switch 

  • Example: Athens

Country: The country corresponding to the above (in M.49 format

  • Example: Greece

Continent: The continent corresponding to the above (in M.49 format

  • Example: Europe

This means that every prefix you'll learn from the route servers will have four (additional) BGP Communities attached which will indicate location information.

BGP Community Graph

To avoid ambiguity about the semantics of a certain BGP Community, especially when being present multiple times, we strip all BGP Communities from the range that we use for route origin tagging on import. This is:

  • 65101:*
  • 65102:*
  • 65103:*
  • 65104:*

Overview

ContinentM.49 Region Code (Continent)Continent BGP ComCountryM.49 Region Code (Country)Country BGP ComMetroMetro CodeMetro BGP Com

Edge Switch

Switch Code

Switch BGP Com

Europe EU

150

65104:150

Greece GR

300

65103:300

ATH (SEECIX)

15000

65102:15000edge01.ath1

15101

65101:15101
Germany DE

276

65103:276

FRA (DE-CIX)

1000

65102:1000

edge01.fra2

1001

65101:1001

edge02.fra2

1089

65101:1089

edge01.fra6

1002

65101:1002
edge02.fra6

1090

65101:1090
edge01.fra9

1006

65101:1006
edge02.fra9

1102

65101:1102
edge01.fra10

1105

65101:1105
edge01.fra12

1085

65101:1085
edge02.fra12

1082

65101:1082
Unknown Continent

65535

65104:65535Unknown Country

65535

65104:65535Unknown Metro6553565102:65535

Unknown Switch

65535

65101:65535

Examples

Example 1

A prefix has the following BGP Communities attached to it:

  • 65104:150
  • 65103:276
  • 65102:3000
  • 65101:3096

From these BGP Communities you can deduce that this particular prefix has been injected in Europe (65104:150), Greece (65103:300) in metro region Athens (65102:15000) at edge01.ath1 (65101:15101).
 

Example 2

A prefix has the following BGP Communities attached to it:

  • 65104:150
  • 65103:276
  • 65102:1000
  • 65101:1085

From these BGP Communities you can deduce that this particular prefix has been injected in Europe (65104:150), Germany (65103:276) in metro region Frankfurt (65102:1000) at edge01.fra12 (65101:1085).

Origin communities table from the Academy Knowledge Card: continent, country, and metro area (without origin edge device)

Origin communities table from the Academy Knowledge Card: continent, country, and metro area (without origin edge device)