%% You should probably cite draft-xu-mpls-payload-protocol-identifier-09 instead of this revision. @techreport{xu-mpls-payload-protocol-identifier-01, number = {draft-xu-mpls-payload-protocol-identifier-01}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-xu-mpls-payload-protocol-identifier/01/}, author = {Xiaohu Xu}, title = {{MPLS Payload Protocol Identifier}}, pagetotal = 6, year = 2016, month = jun, day = 1, abstract = {The MPLS label stack has no explicit protocol identifier field to indicate the protocol type of the MPLS payload. This document proposes a mechanism for containing a protocol identifier field within the MPLS packet, which is useful for any new encapsulation header which may need to be encapsulated with an MPLS header.}, }