Automatically Switched Optical Network (ASON) Routing for OSPFv2 Protocols
RFC 6827
| Document | Type |
RFC - Proposed Standard
(January 2013; No errata)
Obsoletes RFC 5787
Updates RFC 5786
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-malis-ccamp-rfc5787bis | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | WG Document | |
| Document shepherd | Deborah Brungard | ||
| IESG | IESG state | RFC 6827 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Adrian Farrel | ||
| IESG note | Deborah Brungard (dbrungard@att.com) is the Document Shepherd. | ||
| Send notices to | (None) | ||
Internet Engineering Task Force (IETF) A. Malis, Ed.
Request for Comments: 6827 Verizon Communications
Obsoletes: 5787 A. Lindem, Ed.
Updates: 5786 Ericsson
Category: Standards Track D. Papadimitriou, Ed.
ISSN: 2070-1721 Alcatel-Lucent
January 2013
Automatically Switched Optical Network (ASON)
Routing for OSPFv2 Protocols
Abstract
The ITU-T has defined an architecture and requirements for operating
an Automatically Switched Optical Network (ASON).
The Generalized Multiprotocol Label Switching (GMPLS) protocol suite
is designed to provide a control plane for a range of network
technologies. These include optical networks such as time division
multiplexing (TDM) networks including the Synchronous Optical
Network/Synchronous Digital Hierarchy (SONET/SDH), Optical Transport
Networks (OTNs), and lambda switching optical networks.
The requirements for GMPLS routing to satisfy the requirements of
ASON routing and an evaluation of existing GMPLS routing protocols
are provided in other documents. This document defines extensions to
the OSPFv2 Link State Routing Protocol to meet the requirements for
routing in an ASON.
Note that this work is scoped to the requirements and evaluation
expressed in RFC 4258 and RFC 4652 and the ITU-T Recommendations that
were current when those documents were written. Future extensions or
revisions of this work may be necessary if the ITU-T Recommendations
are revised or if new requirements are introduced into a revision of
RFC 4258. This document obsoletes RFC 5787 and updates RFC 5786.
Malis, et al. Standards Track [Page 1]
RFC 6827 ASON Routing for OSPFv2 Protocols January 2013
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 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6827.
Copyright Notice
Copyright (c) 2013 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
(http://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.
Malis, et al. Standards Track [Page 2]
RFC 6827 ASON Routing for OSPFv2 Protocols January 2013
Table of Contents
1. Introduction ....................................................4
1.1. Conventions Used in This Document ..........................5
2. Routing Areas, OSPF Areas, and Protocol Instances ...............5
3. Terminology and Identification ..................................6
4. Reachability ....................................................7
5. Link Attribute ..................................................8
5.1. Local Adaptation ...........................................8
5.2. Bandwidth Accounting .......................................9
6. Routing Information Scope .......................................9
6.1. Link Advertisement (Local and Remote TE Router ID Sub-TLV) .9
6.2. Reachability Advertisement (Local TE Router ID Sub-TLV) ...11
7. Routing Information Dissemination ..............................11
7.1. Import/Export Rules .......................................12
7.2. Loop Prevention ...........................................12
7.2.1. Inter-RA Export Upward/Downward Sub-TLVs ...........13
7.2.2. Inter-RA Export Upward/Downward Sub-TLV Processing .13
8. OSPFv2 Scalability .............................................14
9. Security Considerations ........................................15
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