Packet-Optical Integration in Segment Routing

Document Type Expired Internet-Draft (individual)
Authors Madhukar Anand  , Sanjoy Bardhan  , Ramesh Subrahmaniam  , Jeff Tantsura  , Utpal Mukhopadhyaya , Clarence Filsfils 
Last updated 2020-01-30 (latest revision 2019-07-29)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document illustrates a way to integrate a new class of nodes and links in segment routing to represent transport/optical networks in an opaque way into the segment routing domain. An instance of this class would be optical networks that are typically transport centric by having very few devices with the capability to process packets. In the IP centric network, this will help in defining a common control protocol for packet optical integration that will include optical paths as 'transport segments' or sub-paths as an augmentation to packet paths. The transport segment option also defines a general mechanism to allow for future extensibility of segment routing into non-packet domains.


Madhukar Anand (
Sanjoy Bardhan (
Ramesh Subrahmaniam (
Jeff Tantsura (
Utpal Mukhopadhyaya (
Clarence Filsfils (

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