draft-ietf-ccamp-ospf-availability-extension-01.txt   draft-ietf-ccamp-ospf-availability-extension-02.txt 
Network Working Group H. Long, M.Ye Network Working Group H. Long, M.Ye
Internet Draft Huawei Technologies Co., Ltd Internet Draft Huawei Technologies Co., Ltd
Intended status: Standards Track G. Mirsky Intended status: Standards Track G. Mirsky
Ericsson Ericsson
A.D'Alessandro A.D'Alessandro
Telecom Italia S.p.A Telecom Italia S.p.A
H. Shah H. Shah
Ciena Ciena
Expires: September 2015 March 6, 2015 Expires: January 2016 July 6, 2015
OSPF Routing Extension for Links with Variable Discrete Bandwidth OSPF Routing Extension for Links with Variable Discrete Bandwidth
draft-ietf-ccamp-ospf-availability-extension-01.txt draft-ietf-ccamp-ospf-availability-extension-02.txt
Abstract Abstract
A packet switching network MAY contain links with variable discrete A packet switching network MAY contain links with variable discrete
bandwidth, e.g., copper, radio, etc. The bandwidth of such links MAY bandwidth, e.g., copper, radio, etc. The bandwidth of such links MAY
change discretely in reaction to changing external environment. change discretely in reaction to changing external environment.
Availability is typically used for describing such links during Availability is typically used for describing such links during
network planning. This document introduces an OPTIONAL ISCD network planning. This document introduces an OPTIONAL ISCD
Availability sub-TLV in OSPF routing protocol. This extension can be Availability sub-TLV in OSPF routing protocol. This extension can be
used for route computation in a Packet Switched Network (PSN) that used for route computation in a Packet Switched Network (PSN) that
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other groups may also distribute working documents as Internet- other groups may also distribute working documents as Internet-
Drafts. Drafts.
Internet-Drafts are draft documents valid for a maximum of six Internet-Drafts are draft documents valid for a maximum of six
months and may be updated, replaced, or obsoleted by other documents months and may be updated, replaced, or obsoleted by other documents
at any time. It is inappropriate to use Internet-Drafts as at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress." reference material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html http://www.ietf.org/shadow.html
This Internet-Draft will expire on September 6, 2015.
This Internet-Draft will expire on January 6, 2016.
Copyright Notice Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the Copyright (c) 2015 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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A new AI field is defined in this document. A new AI field is defined in this document.
AI: ISCD Availability sub-TLV index, 8 bits AI: ISCD Availability sub-TLV index, 8 bits
This new field is the index of Availability sub-TLV for this This new field is the index of Availability sub-TLV for this
ISCD sub-TLV. ISCD sub-TLV.
3.2. ISCD Availability sub-TLV 3.2. ISCD Availability sub-TLV
When the Switching Capability field is PSC-1, PSC-2, PSC-3, PSC-4, The Switching Capability field MAY be PSC-1/LSC. The Switching
the Switching Capability specific information field MAY include one Capability specific information field MAY include one or more ISCD
or more ISCD Availability sub-TLV(s). The ISCD Availability sub-TLV Availability sub-TLV(s). The ISCD Availability sub-TLV has the
has the following format: following format:
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 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Index | Reserved | | Index | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Availability level | | Availability level |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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