PMS/Head-end based MPLS Ping and Traceroute in Inter-AS SR Networks

Document Type Replaced Internet-Draft (individual)
Authors Shraddha Hegde  , Kapil Arora  , Samson Ninan  , Mukul Srivastava  , Nagendra Nainar 
Last updated 2020-05-07 (latest revision 2019-11-04)
Replaced by draft-ninan-mpls-spring-inter-domain-oam
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Segment Routing (SR) architecture leverages source routing and tunneling paradigms and can be directly applied to the use of a Multiprotocol Label Switching (MPLS) data plane. Segment Routing also provides an easy and efficient way to provide inter connectivity in a large scale network as described in [RFC8604]. [RFC8287] illustrates the problem and defines extensions to perform LSP Ping and Traceroute for Segment Routing IGP-Prefix and IGP-Adjacency Segment Identifiers (SIDs) with an MPLS data plane. It is useful to have the LSP Ping and traceroute procedures when an SR end-to-end path spans across multiple ASes. This document describes mechanisms to facilitae LSP ping and traceroute in inter-AS SR networks in an efficient manner with simple OAM protocol extension which uses dataplane forwarding alone for sending Echo-Reply.


Shraddha Hegde (
Kapil Arora (
Samson Ninan (
Mukul Srivastava (
Nagendra Nainar (

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