configure at least one BGP neighbor:
•
set the BGP neighbor ID (IP address)
•
specify the remote AS number
You can also:
configure policies for exchanging routes with a neighbor:
•
define the routes that the router can advertise to or receive from a
neighbor, according to address, prefix length, or other attributes—
applications include:
–
preventing multihomed routers from advertising external routes
–
accepting routes only from authorized remote sites
–
setting the policy for a community
•
place a route in a community to request that the neighbor advertises
it to certain peers only
•
apply attributes to accepted routes:
–
local preference
–
community
–
deleting communities defined for the routes
configure policies to load balance:
•
configure an interface as the source of external updates
•
prepend private AS numbers to help balance inbound traffic
•
set a multi-exit discriminator to help balance inbound traffic
enable inbound soft reconfiguration
set an administrative distance for routes discovered by BGP
alter BGP intervals
See Table 13-10 for a summary of configurable BGP parameters.
IP Routing—Configuring RIP, OSPF, BGP, and PBR
Configuring BGP
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