A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : The AS_HOPCOUNT Path Attribute
Author(s) : T. Li, et al.
Filename : draft-li-as-hopcount-03.txt
Pages : 16
Date : 2005-10-3
This document describes the AS hopcount path attribute for BGP. This
is an optional, transitive path attribute that is designed to help
limit the distribution of routing information in the Internet.
By default, prefixes advertised into the BGP mesh are distributed
freely, and if not blocked by policy will propagate globally. This
is harmful to the scalability of the routing subsystem since
information that only has a local effect on routing will cause state
creation throughout the default-free zone. This attribute can be
attached to a particular path to limit its scope to a subset of the
Internet.
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