[Idr] I-D Action: draft-ietf-idr-tunnel-encaps-04.txt

internet-drafts@ietf.org Fri, 14 April 2017 19:21 UTC

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Subject: [Idr] I-D Action: draft-ietf-idr-tunnel-encaps-04.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Inter-Domain Routing of the IETF.

        Title           : The BGP Tunnel Encapsulation Attribute
        Authors         : Eric C. Rosen
                          Keyur Patel
                          Gunter Van de Velde
	Filename        : draft-ietf-idr-tunnel-encaps-04.txt
	Pages           : 40
	Date            : 2017-04-14

   RFC 5512 defines a BGP Path Attribute known as the "Tunnel
   Encapsulation Attribute".  This attribute allows one to specify a set
   of tunnels.  For each such tunnel, the attribute can provide the
   information needed to create the tunnel and the corresponding
   encapsulation header.  The attribute can also provide information
   that aids in choosing whether a particular packet is to be sent
   through a particular tunnel.  RFC 5512 states that the attribute is
   only carried in BGP UPDATEs that have the "Encapsulation Subsequent
   Address Family (Encapsulation SAFI)".  This document deprecates the
   Encapsulation SAFI (which has never been used), and specifies
   semantics for the attribute when it is carried in UPDATEs of certain
   other SAFIs.  This document adds support for additional tunnel types,
   and allows a remote tunnel endpoint address to be specified for each
   tunnel.  This document also provides support for specifying fields of
   any inner or outer encapsulations that may be used by a particular

   This document obsoletes RFC 5512.

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