Conveying Transceiver-Related Information within RSVP-TE Signaling
draft-meuric-ccamp-tsvmode-signaling-00

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Network Working Group                                     J. Meuric, Ed.
Internet-Draft                                              E. Le Rouzic
Updates: RFC7689 (if approved)                                    Orange
Intended status: Standards Track                              L. Alahdab
Expires: September 7, 2020                                    Individual
                                                           G. Galimberti
                                                                   Cisco
                                                           March 6, 2020

   Conveying Transceiver-Related Information within RSVP-TE Signaling
                draft-meuric-ccamp-tsvmode-signaling-00

Abstract

   The ReSource Reservation Protocol with Traffic Engineering extensions
   (RSVP-TE) allows to carry optical information so as to set up
   channels over Wavelength Division Multiplexing (WDM) networks between
   a pair of transceivers.  Nowadays, there are many transceivers that
   not only support tunable lasers, but also multiple modulation
   formats.  This memo leverages the Generalized Multiprotocol Label
   Switching protocol extensions to support the signaling of the
   associated information as a "mode" parameter within a "transceiver
   type" context.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on September 7, 2020.

Meuric, Ed., et al.     Expires September 7, 2020               [Page 1]
Internet-Draft         Transponder Info in RSVP-TE            March 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Main Use Cases  . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Single Control Domain . . . . . . . . . . . . . . . . . .   3
     2.2.  Open Line Systems . . . . . . . . . . . . . . . . . . . .   4
   3.  Signaling Messages  . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Encodings . . . . . . . . . . . . . . . . . . . . . . . .   4
       3.1.1.  WDM-Transceiver-ModeID Sub-TLV  . . . . . . . . . . .   4
       3.1.2.  WDM-Tranceiver-Param Sub-TLV  . . . . . . . . . . . .   6
     3.2.  Processing  . . . . . . . . . . . . . . . . . . . . . . .   7
       3.2.1.  Downstream Direction  . . . . . . . . . . . . . . . .   7
       3.2.2.  Upstream Direction  . . . . . . . . . . . . . . . . .   7
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   The ITU-T's recommendation [G.694.1] defines the flexi-grid
   technology as the latest evolution of the WDM data plane.  [RFC7689]
   defines the extensions to the RSVP-TE signaling ([RFC3473]) to
   provision lightpaths in WDM networks, from transceiver to
   transceiver, including transit Reconfigurable Optical Add-Drop
   Multiplexers (ROADMs).  [RFC7792] specifies the encoding of the flex-
   grid label to be carried within RSVP-TE signaling messages,
   leveraging the reconfiguration capability of optical switches and the
   wavelength tunability of the transceivers at both ends of the optical