Generalized Interface Switching Capability Descriptor - Switching Capability Specific Information
draft-ietf-teas-gmpls-scsi-02

Document Type Active Internet-Draft (teas WG)
Last updated 2017-05-26 (latest revision 2017-03-27)
Replaces draft-ceccarelli-teas-gneralized-scsi
Stream IETF
Intended RFC status Proposed Standard
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TEAS Working Group                                         D. Ceccarelli
Internet-Draft                                                  Ericsson
Intended status: Standards Track                               L. Berger
Expires: September 28, 2017                      LabN Consulting, L.L.C.
                                                          March 27, 2017

   Generalized Interface Switching Capability Descriptor - Switching
                    Capability Specific Information
                     draft-ietf-teas-gmpls-scsi-02

Abstract

   This document defines a generic information structure for information
   carried in routing protocol Interface Switching Capability Descriptor
   (ISCD) Switching Capability Specific Information (SCSI) fields.  This
   "Generalized SCSI" can be used with routing protocols that define
   GMPLS ISCDs, and any specific technology.  This document does not
   modify an existing technology specific formats and is defined for use
   in conjunction with new GMPLS Switching Capability types.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on September 28, 2017.

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   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   carefully, as they describe your rights and restrictions with respect

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   to this document.  Code Components extracted from this document must
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . 3
   3.  Generalized SCSI Formats  . . . . . . . . . . . . . . . . . . . 3
   4.  Procedures  . . . . . . . . . . . . . . . . . . . . . . . . . . 4
   5.  Security Considerations . . . . . . . . . . . . . . . . . . . . 5
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 5
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 6
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 6
     8.1.  Normative References  . . . . . . . . . . . . . . . . . . . 6
     8.2.  Informative References  . . . . . . . . . . . . . . . . . . 6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 7

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1.  Introduction

   The Interface Switching Capability Descriptor (ISCD) [RFC4202] allows
   routing protocols such as OSPF and ISIS to carry technology specific
   information in the the Switching Capability-specific information
   (SCSI) field, see [RFC4203] and [RFC5307].  The format of an SCSI
   field is dictated by the specific technology being represented as
   indicated by the ISCD Switching Capability (SC) type field.  Existing
   Switching Capabilities are managed by IANA in the Switching Types
   registry and the related "IANA-GMPLS-TC-MIB" definitions.

   [RFC7138] introduced a "sub-TLV" structure to its technology specific
   SCSI field.  The Sub-Type-Length-Value (TLV) based approach allows
   for greater flexibility in the structure, ordering, and ability to
   support extensions of the SC (technology) specific format.  This Sub-
   TLV approach is also used in [RFC7688].

   This document generalizes this approach and defines a new generalized
   SCSI field format for use by future specific technologies and
   Switching Capability types.  The generalized SCSI carries SCSI-TLVs
   that may be defined within the scope of a specific technology, or
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