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MPLS Label Stacks in Tunnel Encapsulation Attribute

Document Type Expired Internet-Draft (candidate for idr WG)
Expired & archived
Authors Zhaohui (Jeffrey) Zhang , Susan Hares
Last updated 2023-08-13 (Latest revision 2023-02-09)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state Call For Adoption By WG Issued
Document shepherd Jie Dong
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


RFC 9012 defines an MPLS Label Stack sub-TLV for Tunnel Encapsulation Attribute, and specifies that it is to be pushed BEFORE other labels. This document clarifies the use case for that, defines a new Tunnel Label Stack sub-TLV for a label stack to be pushed AFTER other labels (e.g., the label embedded in the NLRI for a labeled address family, and/or the stack in an MPLS Label Stack sub-TLV), and defines two new Segment sub-TLVs to encode a segment list in a compact format.


Zhaohui (Jeffrey) Zhang
Susan Hares

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)