For each neighbor that a device peers with, a neighbor configuration specifies an IP address and the ASN of the neighbor.
The IP address of the neighbor is the primary IP address of the interface connection. For each neighbor, you can specify a set of attributes. In cases where a set of neighbors share the same set of attributes, it is a best practice to create a peer-group. For more information, see BGP4 Peer Groups.
The neighbor configuration appears in both the global and address-family modes of BGP. The neighbor parameters that are common to all of the address families are available from BGP global configuration mode. The parameters that are specific to an address family are available from BGP address-family submode.
device(config-bgp-router)# neighbor 10.1.1.1 ?
Possible completions:
advertisement-interval Minimum interval between sending BGP routing updates
as-override Override matching AS-number while sending update
capability Advertise capability to the peer
description Neighbor by description
ebgp-btsh Enable EBGP TTL Security Hack Protection
ebgp-multihop Allow EBGP neighbors not on directly connected
networks
enforce-first-as Enforce the first AS for EBGP routes
local-as Assign local-as number to neighbor
maxas-limit Impose limit on number of ASes in AS-PATH attribute
next-hop-self Disable the next hop calculation for this neighbor
password Enable TCP-MD5 password protection
peer-group Assign peer-group to neighbor
remote-as Specify a BGP neighbor
remove-private-as Remove private AS number from outbound updates
shutdown Administratively shut down this neighbor
soft-reconfiguration Per neighbor soft reconfiguration
static-network-edge Neighbor as special service edge, static-network
shall not be advertised if installed as DROP
timers BGP per neighbor timers
update-source Source of routing updates
device(config-bgp-ipv4u)# neighbor 10.1.1.1 ?
Possible completions:
activate Allow exchange of route in the current family mode
allowas-in Disables the AS_PATH check of the routes learned
from the AS
capability Advertise capability to the peer
default-originate Originate default route to peer
filter-list Establish BGP filters
maximum-prefix Maximum number of prefix accept from this peer
prefix-list Prefix List for filtering routes
route-map Apply route map to neighbor
route-reflector-client Configure a neighbor as Route Reflector client
send-community Send community attribute to this neighbor
unsuppress-map Route-map to selectively unsuppress suppressed
routes
weight Set default weight for routes from this neighbor