Generalized SCSI: A Generic Structure for Interface Switching Capability Descriptor (ISCD) Switching Capability Specific Information (SCSI)
RFC 8258
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RFC - Proposed Standard
(October 2017; No errata)
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Last updated |
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2017-10-17
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Replaces |
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draft-ceccarelli-teas-gneralized-scsi
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IETF
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plain text
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bibtex
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Vishnu Beeram
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Shepherd write-up |
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Show
(last changed 2017-05-01)
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| IESG |
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RFC 8258 (Proposed Standard)
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Consensus Boilerplate |
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Yes
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Responsible AD |
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Deborah Brungard
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Send notices to |
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Vishnu Beeram <vbeeram@juniper.net>
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) D. Ceccarelli
Request for Comments: 8258 Ericsson
Category: Standards Track L. Berger
ISSN: 2070-1721 LabN Consulting, L.L.C.
October 2017
Generalized SCSI: A Generic Structure
for Interface Switching Capability Descriptor (ISCD)
Switching Capability Specific Information (SCSI)
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 any existing technology-specific formats and is defined for
use in conjunction with new GMPLS Switching Capability types. The
context for this document is Generalized MPLS, and the reader is
expected to be familiar with the GMPLS architecture and associated
protocol standards.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8258.
Ceccarelli & Berger Standards Track [Page 1]
RFC 8258 Generalized SCSI October 2017
Copyright Notice
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
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Generalized SCSI Formats . . . . . . . . . . . . . . . . . . 3
4. Procedures . . . . . . . . . . . . . . . . . . . . . . . . . 4
5. Security Considerations . . . . . . . . . . . . . . . . . . . 4
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 5
7.1. Normative References . . . . . . . . . . . . . . . . . . 5
7.2. Informative References . . . . . . . . . . . . . . . . . 6
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 7
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 7
1. Introduction
The context for this document is Generalized MPLS, and the reader is
expected to be familiar with the GMPLS architecture, associated
terminology, and protocol standards: notably, but not limited to,
[RFC3945], [RFC4202], [RFC4203] and [RFC5307].
The Interface Switching Capability Descriptor (ISCD) [RFC4202] allows
routing protocols such as OSPF and ISIS to carry technology-specific
information in the Switching Capability-specific information 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 field. Existing Switching Capabilities are
managed by IANA in the "Switching Types" registry
<http://www.iana.org/assignments/gmpls-sig-parameters> and the
related "IANA-GMPLS-TC-MIB" definitions.
Ceccarelli & Berger Standards Track [Page 2]
RFC 8258 Generalized SCSI October 2017
[RFC7138] introduced a "sub-TLV" structure to its technology-specific
SCSI field. The sub-TLV-based approach allows for greater
flexibility in the structure, ordering, and ability to support
extensions of the SC-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
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