BGP traffic engineering

BGP communities

Customers wanting to alter local preference on their routes

rt 198412:120 - customer default
rt 198412:110 - customer backup
rt 198412:100 - customer fallback
rt 198412:666 - blackhole

Communities marked on routes sent to the customer

198412:1000 - North America
198412:1003 - Chicago, IL, US
198412:1004 - Dallas, TX, US
198412:1005 - Los Angeles, CA, US
198412:1006 - Miami, FL, US
198412:1007 - Seattle, WA, US
198412:1008 - San Jose, CA, US
198412:1009 - New York, NY, US

198412:1200 - Europe
198412:1201 - Frankfurt, DE
198412:1202 - Warsaw, PL
198412:1203 - London, UK
198412:1204 - Stockholm, SE
198412:1205 - Paris, FR
198412:1206 - Amsterdam, NL
198412:1207 - Bissen, LU

198412:1400 - Asia and Pacific
198412:1405 - Singapore, SG
198412:1406 - Sydney, AU
198412:1408 - Tokyo, JP
198412:1409 - Mumbai, IN

198412:1600 - South America
198412:1601 - Sao Paulo, BR
198412:1602 - Santiago, CL

198412:1800 - Africa
198412:1801 - Johannesburg, ZA