SEECIX route server Informational BGP Communities

The route server will mark all routes with certain BGP Communities to indicate their origin. You can use this information to determine where a certain route has been injected into the SEECIX/DE-CIX switching platform. This gives you the option 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.
- Example: edge01.ath1
Metro: The metropolitan region corresponding to the switch
- Example: Athens
Country: The country corresponding to the above (in M49 format)
- Example: Greece
Continent: The continent corresponding to the above (in M49 format)
- Example: Europe

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

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

<RS_ASN>:1911:*
<RS_ASN>:1912:*
<RS_ASN>:1913:*
<RS_ASN>:1914:*

where <RS_ASN> is the corresponding route server ASN at a given IXP.

Overview

Continent	Continent BGP Community	Country	Country BGP Community	Metro	Metro BGP Community	Switch	Switch BGP Community
Europe _EU	<RS_ASN>:1914:150	Greece _GR	<RS_ASN>:1913:300	ATH (SEECIX)	<RS_ASN>:1912:12	edge01.ath1	<RS_ASN>:1911:101
		Germany _DE	<RS ASN>:1913:276	FRA (DE-CIX)	<RS ASN>:1912:0	edge02.fra12	<RS_ASN>:1911:82
						edge02.fra2	<RS_ASN>:1911:89
						edge02.fra6	<RS_ASN>:1911:90
						edge01.fra10	<RS_ASN>:1911:105
						edge02.fra9	<RS_ASN>:1911:163
						edge03.fra12	<RS_ASN>:1911:172
						edge01.fra5	<RS_ASN>:1911:79
				MUC	<RS_ASN>:1912:1	edge02.muc1	<RS_ASN>:1911:96
				HAM	<RS_ASN>:1912:2	edge03.ham1	<RS_ASN>:1911:122
				DUS	<RS_ASN>:1912:9	edge02.dus1	<RS_ASN>:1911:93
				DTM (Ruhr-CIX)	<RS_ASN>:1912:20	edge01.dtm1	<RS_ASN>:1911:115
		France 🇫🇷	<RS_ASN>:1913:250	MRS	<RS_ASN>:1912:6	edge02.mrs1	<RS_ASN>:1911:97
		Italy 🇮	<RS_ASN>:1913:380	PMO	<RS_ASN>:1912:5	edge02.pmo1	<RS_ASN>:1911:180
		Spain 🇪🇸	<RS_ASN>:1913:724	MAD	<RS_ASN>:1912:10	edge02.mad1	<RS_ASN>:1911:77
						edge02.mad3	<RS_ASN>:1911:92
						edge01.mad4	<RS_ASN>:1911:103
				BCN	<RS_ASN>:1912:21	edge01.bcn1	<RS ASN>:1911:116
		Portugal 🇵🇹	<RS_ASN>:1913:620	LIS	<RS_ASN>:1912:11	edge02.lis1	<RS_ASN>:1911:138
		Portugal 🇵🇹	<RS_ASN>:1913:620	LIS	<RS_ASN>:1912:11	edge01.lis3	<RS_ASN:1911:182
Americas	<RS_ASN>:1914:19	United States of America 🇺🇸	<RS_ASN>:1913:840	NYC	<RS_ASN>:1912:4	edge03.nyc6	<RS_ASN>:1911:196
						edge02.nyc5	<RS_ASN>:1911:87
						edge02.nyc1	<RS_ASN>:1911:127
						edge02.nyc8	<RS_ASN>:1911:124
						edge03.nyc3	<RS_ASN>:1911:128
						edge02.nyc17	<RS_ASN>:1911:170
Asia	<RS_ASN>:1914:142	Türkiye 🇹🇷	<RS_ASN>:1913:792	IST	<RS_ASN>:1912:7	edge02.ist1	<RS_ASN>:1911:133
						edge01.ist5	<RS_ASN>:1911:139
						edge02.ist2	<RS_ASN>:1911:158
Unknown Continent	<RS_ASN>:1914:65535	Unknown Country	<RS_ASN>:1913:65535	Unknown Metro	<RS_ASN>:1912:65535	Unknown Switch	<RS_ASN>:1911:65535

Examples

Example 1

A prefix has the following BGP Communities attached to it:

56858:1914:150
56858:1913:300
56858:1912:12
56858:1911:101

From these BGP Communities you can deduce that this particular prefix has been injected in Europe (56858:1914:150), Greece (56858:1913:300) in metro region Athens (56858:1912:12) at edge01.ath1 (56858:1911:101) at SEECIX (ASN 56858).

Example 2