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Module 9: BGP
 
9.3.1 Basic BGP configuration

Router(config-router)#network network-number [mask network-mask]
Router(config-router)#neighbor ip-address remote-as AS-number
 

9.3.4 EBGP multihop

Router(config-router)#neighbor ip-address ebgp-multihop [hops]
 

9.3.5 Clearing the BGP table

Router#clear ip bgp {* | address | peer-group name} [soft [in | out]]
Router#clear ip bgp route network-address
 

9.4.1 Verifying BGP operation

Router#show ip bgp
Router#show ip bgp summary
Router#show ip bgp neighbors
Router#show ip bgp paths
 

9.5.3 Implementing BGP routing policy

Router(config)#route-map map-tag [permit | deny] [sequence-number]
 

9.6.4 Next Hop behavior on NBMA networks

Router(config-router)#neighbor IP-address next-hop-self
 

9.6.6 AS_Path and private AS numbers

Router(config-router)#neighbor IP-address remove-private-as
 

9.6.7 The Atomic Aggregate attribute

Router(config-router)#aggregate-address address mask [as-set] [summary-only] [suppress-map map-name][advertise-map map-name] [attribute-map map-name]
 

9.6.10 Manipulating Local Preference

Router(config-router)#bgp default local-preference value
Router(config)#ip as-path access-list access-list-number {permit | deny} as-regular-expression

 

9.6.11 The Weight attribute

Router(config-router)#neighbor IP-address weight number
 

9.6.12 The Multiple Exit Discriminator attribute

Router(config-router)#bgp always-compare-med
 

9.8.4 The ip prefix-list command

Router(config)#ip prefix-list list-name [seq seq-value] {deny | permit network/length} [ge ge-value] [le le-value]

9.9.3 Load balancing

Router(config-router)#neighbor IP-address default-originate

9.9.5 Load balancing

Router(config-router)#maximum-paths number

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