Table Of Contents

Sample BGP Configuration

Sample BGP Configuration

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The following excerpt displays the relevant portions of the CLI configuration, which is used as a basis for the Border Gateway Protocol (BGP) examples contained within this document:

router bgp 3

 timers bgp 60 180

 bgp router-id 10.1.0.1

 bgp update-delay 55

 bgp cluster-id 10.1.0.2

 bgp graceful-restart purge-time 300

 default-information originate

 bgp graceful-restart restart-time 180

 bgp log neighbor changes disable

 default-metric 10

 bgp graceful-restart stalepath-time 300

 bgp graceful-restart

 bgp as-path-loopcheck

 socket send-buffer-size 131072

 bgp bestpath med always

 bgp bestpath compare-routerid

 bgp bestpath med missing-as-worst

 socket receive-buffer-size 131072

 address-family ipv4 unicast

  distance bgp 140 145 150

  bgp dampening 1 1400 1800 2

  bgp scan-time 30

  network 10.100.1.0/24

  network 10.100.2.0/24

  aggregate-address 10.100.0.0/16 summary-only

  redistribute connected route-map MATCH_ONE_CONNECT

  redistribute static route-map MATCH_ONE_STATIC

exit

 address-family ipv4 multicast

  distance bgp 120 125 130

  maximum-paths 6

  bgp dampening 2 2400 2800 3

  bgp scan-time 40

  network 10.10.1.0/24

  network 10.10.2.0/24

  aggregate-address 80.100.0.0/16 summary-only

  redistribute connected

exit

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neighbor 10.0.101.1

  remote-as 1

  ebgp-multihop 255

  address-family ipv4 unicast

   send-community-ebgp

   route-map EBGP_IN_1 in

  exit

  address-family ipv4 multicast

   send-community-ebgp

   route-map EBGP_IN_1 in

  exit

 exit

 neighbor 10.0.101.2

  remote-as 2

  ebgp-multihop 255

  address-family ipv4 unicast

   send-community-ebgp

   capability orf prefix-list receive

   route-map EBGP_IN_1 in

  exit

  address-family ipv4 multicast

   send-community-ebgp

   route-map EBGP_IN_1 in

  exit

 exit

 neighbor 10.0.101.3

  remote-as 3

  address-family ipv4 unicast

   route-map IBGP_IN_1 in

  exit

  address-family ipv4 multicast

   route-map IBGP_IN_1 in

  exit

 exit

 neighbor 10.0.101.4

  remote-as 4

  ebgp-multihop 255

  address-family ipv4 unicast

   route-map EBGP_IN_2 in

  exit

  address-family ipv4 multicast

   route-map EBGP_IN_2 in

  exit

 exit

neighbor 10.0.101.5

  remote-as 5

  ebgp-multihop 255

  address-family ipv4 unicast

   route-map EBGP_IN_3 in

  exit

  address-family ipv4 multicast

   route-map EBGP_IN_3 in

  exit

 exit

 neighbor 10.0.101.6

  remote-as 6

  ebgp-multihop 255

  address-family ipv4 unicast

   prefix-list orf in

   capability orf prefix-list both

  exit

  address-family ipv4 multicast

   prefix-list orf in

  exit

 exit

 neighbor 10.0.101.7

  remote-as 7

  ebgp-multihop 255

  address-family ipv4 unicast

   prefix-list orf in

   capability orf prefix-list send

  exit

  address-family ipv4 multicast

   prefix-list orf in

  exit

 exit

 neighbor 10.0.101.8

  remote-as 8

  ebgp-multihop 255

  address-family ipv4 multicast

  exit

 exit

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exit