Reference Guide
178 | Border Gateway Protocol
www.dell.com | support.dell.com
Configuration Task List for BGP
The following list includes the configuration tasks for BGP:
• Enable BGP
• Configure AS4 Number Representations
• Configure Peer Groups
• BGP fast fall-over
• Configure passive peering
• Maintain existing AS numbers during an AS migration
• Allow an AS number to appear in its own AS path
• Enable graceful restart
• Filter on an AS-Path attribute
• Configure IP community lists
• Manipulate the COMMUNITY attribute
• Change MED attribute
• Change LOCAL_PREFERENCE attribute
• Change NEXT_HOP attribute
• Change WEIGHT attribute
• Enable multipath
• Filter BGP routes
• Redistribute routes
• Enable additional paths
• Configure BGP route reflectors
• Aggregate routes
• Configure BGP confederations
• Enable route flap dampening
• Change BGP timers
• BGP neighbor soft-reconfiguration
• Route map continue
Enable BGP
By default, BGP is not enabled on the system. FTOS supports one Autonomous System (AS) and you must
assign the AS Number (ASN). To establish BGP sessions and route traffic, you must configure at least one
BGP neighbor or peer.
In BGP, routers with an established TCP connection are called neighbors or peers. Once a connection is
established, the neighbors exchange full BGP routing tables with incremental updates afterwards. In
addition, neighbors exchange KEEPALIVE messages to maintain the connection.