BGP enabled devices connected through an established TCP connection are referred to as BGP peers or neighbors. To establish a TCP connection, BGP routers exchange open messages containing the following information: AS number, BGP version running, BGP router ID, and timer values (keepalive and holdtime). Once these values are accepted by both devices, the connection is established and the routers become neighbors. With the TCP connection established the BGP neighbors begin sharing routing information and updates. A failure in the establishment of the TCP connection indicates that the routers are not neighbors and cannot exchange routing information.
Use the (profile/device-config) instance to configure BGP neighbors.
<DEVICE>(config)#profile <PROFILE-NAME>
<DEVICE>(config-profile <PROFILE-NAME>)#router bgp <DEVICE>(config-profile <PROFILE-NAME>-router-bgp)#?
<DEVICE>(config-profile <PROFILE-NAME>-router-bgp)#bgp neighbor ? A.B.C.D IP address of the bgp neighbor <DEVICE>(config-profile <PROFILE-NAME>-router-bgp)#
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Download EPUB<DEVICE>(config-profile <PROFILE-NAME>-router-bgp)#bgp neighbor <IP>
<DEVICE>(config-profile <PROFILE-NAME>-router--bgp-neighbor-<IP>)#?
Router BGP Neighbor Mode commands:
activate Enable the Address Family for this Neighbor
(EXPERIMENTAL)
advertisement-interval Minimum interval between BGP routing updates
allowas-in Accept as-path with my AS present in it
(EXPERIMENTAL)
attribute-unchanged BGP attribute is propagated unchanged to this
neighbor (EXPERIMENTAL)
capability Advertise capability to the peer
default-originate Originate default route to this neighbor
description Neighbor specific description
disable-connected-check One-hop away EBGP peer using loopback address
(EXPERIMENTAL)
dont-capability-negotiate Do not perform capability negotiation
(EXPERIMENTAL)
ebgp-multihop Allow EBGP neighbors not on directly connected
networks
enforce-multihop Enforce EBGP neighbors perform multihop
(EXPERIMENTAL)
local-as Specify a local-as number (EXPERIMENTAL)
maximum-prefix Maximum number of prefix accept from this peer
next-hop-self Disable the next hop calculation for this
neighbor
no Negate a command or set its defaults
override-capability Override capability negotiation result
passive Don't send open messages to this neighbor
password Set a password
peer-group Set peer-group for this neighbor (EXPERIMENTAL)
port Neighbor's BGP port (EXPERIMENTAL)
remote-as Specify a BGP neighbor
remove-private-as Remove private AS number from outbound updates
(EXPERIMENTAL)
route-server-client Configure a neighbor as Route Server client
(EXPERIMENTAL)
send-community Send Community attribute to this neighbor
shutdown Administratively shut down this neighbor
soft-reconfiguration Per neighbor soft reconfiguration
strict-capability-match Strict capability negotiation match
(EXPERIMENTAL)
timers BGP per neighbor timers
unsuppress-map Route-map to selectively unsuppress suppressed
routes
update-source Source of routing updates
use Set setting to use
weight Set default weight for routes from this neighbor
clrscr Clears the display screen
commit Commit all changes made in this session
do Run commands from Exec mode
end End current mode and change to EXEC mode
exit End current mode and down to previous mode
help Description of the interactive help system
revert Revert changes
service Service Commands
show Show running system information
write Write running configuration to memory or terminal
<DEVICE>(config-profile <PROFILE-NAME>-router--bgp-neighbor-<IP>)#
 BGP-Neighbor Config Mode Commands
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