A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : BGP Softwire Nexthop Attribute
Author(s) : G. Nalawade, et al.
Filename : draft-nalawade-softwire-nhop-00.txt
Pages : 13
Date : 2006-6-22
The current [MP-BGP] extensions carry routing information by
associating the same network layer protocol with both the NLRI and
the next hop. However, in certain scenarios, it is desirable or
required to advertise next hop information associated with a
different network layer protocol to the one associated with the NLRI.
Similarly, when data traffic for a network layer protocol's NLRIs
needs to be forwarded over an underlying tunnel, it is required to
indicate the tunnel endpoint to be used for forwarding with the BGP
update for a given NLRI.
This document specifies a new BGP attribute, called the SW_NEXT_HOP
attribute, which can optionally be used in a BGP Update message to
advertise next hop information associated with a different network
layer protocol than that of the NLRIs or convey information about the
tunnel endpoint.
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