draft-ietf-teas-gmpls-scsi-03.txt   draft-ietf-teas-gmpls-scsi-04.txt 
TEAS Working Group D. Ceccarelli TEAS Working Group D. Ceccarelli
Internet-Draft Ericsson Internet-Draft Ericsson
Intended status: Standards Track L. Berger Intended status: Standards Track L. Berger
Expires: December 30, 2017 LabN Consulting, L.L.C. Expires: March 3, 2018 LabN Consulting, L.L.C.
June 28, 2017 August 30, 2017
Generalized Interface Switching Capability Descriptor - Switching Generalized Interface Switching Capability Descriptor - Switching
Capability Specific Information Capability Specific Information
draft-ietf-teas-gmpls-scsi-03 draft-ietf-teas-gmpls-scsi-04
Abstract Abstract
This document defines a generic information structure for information This document defines a generic information structure for information
carried in routing protocol Interface Switching Capability Descriptor carried in routing protocol Interface Switching Capability Descriptor
(ISCD) Switching Capability Specific Information (SCSI) fields. This (ISCD) Switching Capability Specific Information (SCSI) fields. This
"Generalized SCSI" can be used with routing protocols that define "Generalized SCSI" can be used with routing protocols that define
GMPLS ISCDs, and any specific technology. This document does not GMPLS ISCDs, and any specific technology. This document does not
modify any existing technology specific formats and is defined for modify any existing technology specific formats and is defined for
use in conjunction with new GMPLS Switching Capability types. The use in conjunction with new GMPLS Switching Capability types. The
skipping to change at page 1, line 41 skipping to change at page 1, line 41
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on December 30, 2017. This Internet-Draft will expire on March 3, 2018.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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The reader is expected to be familiar with GMPLS terminology, e.g. as The reader is expected to be familiar with GMPLS terminology, e.g. as
found in [RFC3945], as well as the terminology used in [RFC4202], found in [RFC3945], as well as the terminology used in [RFC4202],
[RFC4203] and [RFC5307]. [RFC4203] and [RFC5307].
3. Generalized SCSI Formats 3. Generalized SCSI Formats
The Generalized SCSI is composed of zero or more variable length The Generalized SCSI is composed of zero or more variable length
type-length-value fields which are each called a SCSI-TLV. There are type-length-value fields which are each called a SCSI-TLV. There are
no specific size restrictions on these SCSI-TLV. Size and other no specific size restrictions on these SCSI-TLV. Size and other
formatting restrictions may be imposed by the routing protocol ISCD formatting restrictions may be imposed by the routing protocol ISCD
field, refer to [RFC4203] and [RFC5307]. field, refer to [RFC4203] and [RFC5307]. Please also refer to
[RFC3630] for the treatment of malformed Link TLVs.
The SCSI-TLV format is: The SCSI-TLV format is:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | | Type | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
... Value ... ... Value ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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6. IANA Considerations 6. IANA Considerations
This document defines a new SCSI-TLV that is carried in the SCSI This document defines a new SCSI-TLV that is carried in the SCSI
field of the ISCDs defined in [RFC4203] and [RFC5307]. The SCSI-TLV field of the ISCDs defined in [RFC4203] and [RFC5307]. The SCSI-TLV
includes a 16-bit type identifier (the Type field). The same Type includes a 16-bit type identifier (the Type field). The same Type
field values are applicable to the new SCSI-TLV. field values are applicable to the new SCSI-TLV.
IANA is requested to create and maintain a new registry, the IANA is requested to create and maintain a new registry, the
"Generalized SCSI (Switching Capability Specific Information) TLVs "Generalized SCSI (Switching Capability Specific Information) TLVs
Types" registry under either the the "Generalized Multi-Protocol Types" registry under the the "Generalized Multi-Protocol Label
Label Switching (GMPLS) Signaling Parameters" registry or a new Switching (GMPLS) Signaling Parameters" registry.
"Generalized Multi-Protocol Label Switching (GMPLS) Routing
Parameters" registry, at their desecration.
The definition of the new registry is as follows: The definition of the new registry is as follows:
Value SCSI-TLV Switching Type Reference Value SCSI-TLV Switching Type Reference
--------- ----------------------- -------------- --------- --------- ----------------------- -------------- ---------
0 Reserved [This ID] 0 Reserved [This ID]
1-65535 Unassigned (value list) [This ID] 1-65535 Unassigned (value list) [This ID]
New allocation requests to this registry must indicate the value or New allocation requests to this registry must indicate the value or
values to be used in the Switching Type column. values to be used in the Switching Type column.
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The authors would like to thank Adrian Farrel and Julien Meuric for The authors would like to thank Adrian Farrel and Julien Meuric for
the careful review and suggestions. Thomas Heide Clausen provided the careful review and suggestions. Thomas Heide Clausen provided
useful comments as part of the Routing Directorate review. useful comments as part of the Routing Directorate review.
8. References 8. References
8.1. Normative References 8.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997, DOI 10.17487/RFC2119, March 1997, <https://www.rfc-
<http://www.rfc-editor.org/info/rfc2119>. editor.org/info/rfc2119>.
[RFC3630] Katz, D., Kompella, K., and D. Yeung, "Traffic Engineering
(TE) Extensions to OSPF Version 2", RFC 3630,
DOI 10.17487/RFC3630, September 2003, <https://www.rfc-
editor.org/info/rfc3630>.
[RFC4202] Kompella, K., Ed. and Y. Rekhter, Ed., "Routing Extensions [RFC4202] Kompella, K., Ed. and Y. Rekhter, Ed., "Routing Extensions
in Support of Generalized Multi-Protocol Label Switching in Support of Generalized Multi-Protocol Label Switching
(GMPLS)", RFC 4202, DOI 10.17487/RFC4202, October 2005, (GMPLS)", RFC 4202, DOI 10.17487/RFC4202, October 2005,
<http://www.rfc-editor.org/info/rfc4202>. <https://www.rfc-editor.org/info/rfc4202>.
[RFC4203] Kompella, K., Ed. and Y. Rekhter, Ed., "OSPF Extensions in [RFC4203] Kompella, K., Ed. and Y. Rekhter, Ed., "OSPF Extensions in
Support of Generalized Multi-Protocol Label Switching Support of Generalized Multi-Protocol Label Switching
(GMPLS)", RFC 4203, DOI 10.17487/RFC4203, October 2005, (GMPLS)", RFC 4203, DOI 10.17487/RFC4203, October 2005,
<http://www.rfc-editor.org/info/rfc4203>. <https://www.rfc-editor.org/info/rfc4203>.
[RFC5307] Kompella, K., Ed. and Y. Rekhter, Ed., "IS-IS Extensions [RFC5307] Kompella, K., Ed. and Y. Rekhter, Ed., "IS-IS Extensions
in Support of Generalized Multi-Protocol Label Switching in Support of Generalized Multi-Protocol Label Switching
(GMPLS)", RFC 5307, DOI 10.17487/RFC5307, October 2008, (GMPLS)", RFC 5307, DOI 10.17487/RFC5307, October 2008,
<http://www.rfc-editor.org/info/rfc5307>. <https://www.rfc-editor.org/info/rfc5307>.
8.2. Informative References 8.2. Informative References
[I-D.ietf-ccamp-ospf-availability-extension] [I-D.ietf-ccamp-ospf-availability-extension]
Long, H., Ye, M., Mirsky, G., D'Alessandro, A., and H. Long, H., Ye, M., Mirsky, G., D'Alessandro, A., and H.
Shah, "OSPF-TE Link Availability Extension for Links with Shah, "OSPF-TE Link Availability Extension for Links with
Variable Discrete Bandwidth", draft-ietf-ccamp-ospf- Variable Discrete Bandwidth", draft-ietf-ccamp-ospf-
availability-extension-09 (work in progress), February availability-extension-10 (work in progress), August 2017.
2017.
[RFC2154] Murphy, S., Badger, M., and B. Wellington, "OSPF with [RFC2154] Murphy, S., Badger, M., and B. Wellington, "OSPF with
Digital Signatures", RFC 2154, DOI 10.17487/RFC2154, June Digital Signatures", RFC 2154, DOI 10.17487/RFC2154, June
1997, <http://www.rfc-editor.org/info/rfc2154>. 1997, <https://www.rfc-editor.org/info/rfc2154>.
[RFC3945] Mannie, E., Ed., "Generalized Multi-Protocol Label [RFC3945] Mannie, E., Ed., "Generalized Multi-Protocol Label
Switching (GMPLS) Architecture", RFC 3945, Switching (GMPLS) Architecture", RFC 3945,
DOI 10.17487/RFC3945, October 2004, DOI 10.17487/RFC3945, October 2004, <https://www.rfc-
<http://www.rfc-editor.org/info/rfc3945>. editor.org/info/rfc3945>.
[RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an [RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", RFC 5226, IANA Considerations Section in RFCs", RFC 5226,
DOI 10.17487/RFC5226, May 2008, DOI 10.17487/RFC5226, May 2008, <https://www.rfc-
<http://www.rfc-editor.org/info/rfc5226>. editor.org/info/rfc5226>.
[RFC5304] Li, T. and R. Atkinson, "IS-IS Cryptographic [RFC5304] Li, T. and R. Atkinson, "IS-IS Cryptographic
Authentication", RFC 5304, DOI 10.17487/RFC5304, October Authentication", RFC 5304, DOI 10.17487/RFC5304, October
2008, <http://www.rfc-editor.org/info/rfc5304>. 2008, <https://www.rfc-editor.org/info/rfc5304>.
[RFC7138] Ceccarelli, D., Ed., Zhang, F., Belotti, S., Rao, R., and [RFC7138] Ceccarelli, D., Ed., Zhang, F., Belotti, S., Rao, R., and
J. Drake, "Traffic Engineering Extensions to OSPF for J. Drake, "Traffic Engineering Extensions to OSPF for
GMPLS Control of Evolving G.709 Optical Transport GMPLS Control of Evolving G.709 Optical Transport
Networks", RFC 7138, DOI 10.17487/RFC7138, March 2014, Networks", RFC 7138, DOI 10.17487/RFC7138, March 2014,
<http://www.rfc-editor.org/info/rfc7138>. <https://www.rfc-editor.org/info/rfc7138>.
[RFC7688] Lee, Y., Ed. and G. Bernstein, Ed., "GMPLS OSPF [RFC7688] Lee, Y., Ed. and G. Bernstein, Ed., "GMPLS OSPF
Enhancement for Signal and Network Element Compatibility Enhancement for Signal and Network Element Compatibility
for Wavelength Switched Optical Networks", RFC 7688, for Wavelength Switched Optical Networks", RFC 7688,
DOI 10.17487/RFC7688, November 2015, DOI 10.17487/RFC7688, November 2015, <https://www.rfc-
<http://www.rfc-editor.org/info/rfc7688>. editor.org/info/rfc7688>.
8.3. URIs 8.3. URIs
[1] http://www.iana.org/assignments/gmpls-sig-parameters/gmpls-sig- [1] http://www.iana.org/assignments/gmpls-sig-parameters/gmpls-sig-
parameters.xml#gmpls-sig-parameters-3 parameters.xml#gmpls-sig-parameters-3
Authors' Addresses Authors' Addresses
Daniele Ceccarelli Daniele Ceccarelli
Ericsson Ericsson
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