Friday, July 23, 2010

CCNP - ENTERPRISE - Study Pointers - BGP


  • When configuring eBGP peers between peers that are not directly connected you use the - 'R2(config-router)#neighbor ebgp-multihop [hops]' - cmd on both peers.
  • On an iBGP router that is a border router configure- 'R2(config-router)#neighbor next-hop-self' -  to advertise the next hop as it's self to the rest of the iBGP peers
  • Send the default route information to a specific peer - 'R2(config-router)#neighbor default-originate'
  • 3 well know mandatory BGP attributes - AS_PATH, NEXT_HOP, Origin

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