List and explain the characteristics of BGP.

What will be an ideal response?

The BGP has the following characteristics:
? Routing Among AS. Because it is intended for use as an Exterior Gateway Protocol, BGP
provides routing information at the AS level. That is, all routes are given as a path of AS.
? Provision For Policies. BGP allows the sender and receiver to enforce policies. In particular, a
manager can configure BGP to restrict which routes BGP advertises to outsiders.
? Facilities For Transit Routing. BGP classifies each AS transit system if it agrees to pass traffic
through to another AS, or as a stub system if it does not. The classification allows BGP to
distinguish between ISPs and other AS. BGP allows a corporation to classify itself as a stub
even if it is multi-homed
? Reliable Transport. BGP uses TCP for all communication. That is, a BGP program on a router in
one AS forms a TCP connection to a BGP program on a router in another AS, and then sends
data across the connection. TCP ensures that the data arrives in the correct order and that no
data is missing.