Conveying Transceiver-Related Information within RSVP-TE Signaling
draft-meuric-ccamp-tsvmode-signaling-01
Network Working Group J. Meuric, Ed.
Internet-Draft E. Le Rouzic
Updates: RFC7689 (if approved) Orange
Intended status: Standards Track L. Alahdab
Expires: January 27, 2021 Individual
G. Galimberti
Cisco
July 26, 2020
Conveying Transceiver-Related Information within RSVP-TE Signaling
draft-meuric-ccamp-tsvmode-signaling-01
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.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on January 27, 2021.
Meuric, Ed., et al. Expires January 27, 2021 [Page 1]
Internet-Draft Transponder Info in RSVP-TE July 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 . . . . . . . . . . . . . . . . . . . . . 5
3.1. Encodings . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.1. WDM-Transceiver-ModeID Sub-TLV . . . . . . . . . . . 5
3.1.2. WDM-Tranceiver-Param Sub-TLV . . . . . . . . . . . . 6
3.2. Processing . . . . . . . . . . . . . . . . . . . . . . . 7
3.2.1. Downstream Direction . . . . . . . . . . . . . . . . 7
3.2.2. Upstream Direction . . . . . . . . . . . . . . . . . 8
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
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