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BGP Configuration Commands
XSR CLI Reference Guide 6-99
neighbor peer-group
ThiscommandcreatesaBGPpeergroupandassignsaBGPneighbortoapeergroup.
Syntax
neighbor {ip-address | peer-group-name} peer-group [peer-group-name]
Syntax of the “no” Form
Thenoformofthiscommandremovesthespecifedneighborpeergroup:
no neighbor {ip-address | peer-group-name} peer-group [peer-group-name]
Mode
Routerconfiguration:XSR(config-router)#
Example
ThefollowingexamplecreatespeergroupExternalGroupandassignsneighbor192.168.1.1topeer
groupExternalGroup:
XSR(config)#router bgp 100
XSR(config-router)#neighbor ExternalGroup peer-group
XSR(config-router)#neighbor 192.168.1.1 remote-as 101
XSR(config-router)#neighbor 192.168.1.1 peer-group ExternalGroup
neighbor remote-as
ThiscommandaddsanentrytotheBGPneighbortable.BGPrequiresmanualneighbor
configuration.TheconfigurationofneighborsonbothoftheneighboringBGProutersallowsa
BGPsessiontobesetupbetweentheroutersandallowstheexchangeofBGPupdatemessages.
ForexternalBGPneighbors,theIP
addressspecifiedisthatoftheneighborinterfacetotheshared
subnetbetweenrouters(unlessebgp‐multihopisenabled).ForinternalBGPneighbors,the
neighborIPaddressisanyreachableIPaddressfromtherouter.
Syntax
neighbor {ip-address | peer-group-name} remote-as autonomous-system
Syntax of the “no” Form
Thenoformofthiscommandremovesthespecifiedentryfromthetable:
no neighbor {ip-address | peer-group-name} remote-as autonomous-system
ip-address
Neighbor’sIPaddress.
peer-group-name
BGPpeergroupbyname.Range:1to64characters.
ip-address
Neighbor’sIPaddress.
peer-group-name
BGPpeergroupbyname.Range:1to64characters.
autonomous-system
ASbynumber,rangingfrom1to65535.