Difference between revisions of "NLRI"
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Latest revision as of 10:23, 27 November 2011
The Network Layer Reachability Information (NLRI) is exchanged between BGP routers using UPDATE messages. An NLRI is composed of a LENGTH and a PREFIX. The length is a network mask in CIDR notation (eg. /25) specifying the number of network bits, and the prefix is the Network address for that subnet.
The NLRI is unique to BGP version 4 and allows BGP to carry supernetting information, as well as perform aggregation.