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Title: R&S Quick Notes – BGP

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BGP     When using Communities, don't forget “neighbor send-community”     Know your attributes and the direction which applied, when to used what.     “aggregate address” needs a more specific prefix in the BGP table for aggregate to be advertised.     Synchronization issue has 3 solutions, 1- Load BGP on all transit routers, 2- GRE tunnel, 3- Redistribution BGP>IGP.     “no bgp nexthop trigger” – Disables next-hop tracking between scanner intervals.     “no bgp fast-ext-fallover” – Force the router to wait for the dead-timer to expire, before generating notification messages , when a connected peer goes down.     “neighbor fall-over” – Will check neighbor connenctivity between scanner intervals, aka BGP Fast Peering.     Only the Holdtime is sent in update-msg. Two neighbors will use the lowest holdtime and then calculate the keepalive from that.     Know your Regular Expressions    Know the difference between Peer-Groups and Peer-Templates  

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Post date: 2009-06-23 10:06:31

Post date GMT: 2009-06-23 02:06:31

Post modified date: 2010-07-24 14:32:06

Post modified date GMT: 2010-07-24 06:32:06



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