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bgp_communities_in_practice [2014/01/12 09:19] samerbgp_communities_in_practice [2020/04/28 21:29] (current) samer
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 ====== BGP Communities in Practice ====== ====== BGP Communities in Practice ======
  
-BGP communities enable to label prefixes announced by BGP in order to apply specific policies. Two good examples of using BGP communities in real networks are provided for [[https://www.sprint.net/index.php?p=policy_bgp | Sprint]] and [[https://services.renater.fr/connectivite/routage_d_adresses | RENATER]].+BGP communities enable to label prefixes announced by BGP in order to apply specific policies. Two good examples of using BGP communities in real networks are provided for [[https://www.sprint.net/index.php?p=policy_bgp | Sprint]] and [[https://services.renater.fr/services_ip/routage_d_adresses | RENATER]].
  
-Let us analyze the illustration above provided by RENATER to explain how to use communities on its network. A dual-connected client network identifies a primary link and a secondary or backup link toward RENATER. In the BGP prefix announcements, this network can use the community ''2200:610'' on the primary link, and the community ''2200:590'' on the backup link. RENATER applies specific policies in order to implement the primary/backup behavior. A simple way to do this is described in the following:+Let us analyze the illustration below provided by RENATER to explain how to use communities on its network. A dual-connected client network identifies a primary link and a secondary or backup link toward RENATER. In the BGP prefix announcements, this network can use the community ''2200:610'' on the primary link, and the community ''2200:590'' on the backup link. RENATER applies specific policies in order to implement the primary/backup behavior. A simple way to do this is described in the following:
  
 [{{ :commbgp-1.png?direct&500 | Figure 1. BGP community illustration}}] [{{ :commbgp-1.png?direct&500 | Figure 1. BGP community illustration}}]
bgp_communities_in_practice.txt · Last modified: 2020/04/28 21:29 by samer