OSPF-TE Link Availability Extension for Links with Variable Discrete Bandwidth
draft-ietf-ccamp-ospf-availability-extension-08

The information below is for an old version of the document
Document Type Active Internet-Draft (ccamp WG)
Authors Hao Long  , Min Ye  , Greg Mirsky  , Alessandro D'Alessandro  , Himanshu Shah 
Last updated 2016-11-03 (latest revision 2016-10-23)
Replaces draft-long-ccamp-ospf-availability-extension
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Network Working Group                                     H. Long, M.Ye 
Internet Draft                             Huawei Technologies Co., Ltd         
Intended status: Standards Track                              G. Mirsky 
                                                             Individual   
                                                         A.D'Alessandro 
                                                   Telecom Italia S.p.A 
                                                                H. Shah 
                                                                  Ciena         
Expires: April 2017                                    October 24, 2016  
                                      
    OSPF-TE Link Availability Extension for Links with Variable Discrete 
                                Bandwidth 
            draft-ietf-ccamp-ospf-availability-extension-08.txt 

Abstract 

   A network may contain links with variable discrete bandwidth, e.g., 
   copper, radio, etc. The bandwidth of such links may change 
   discretely in reaction to changing external environment. 
   Availability is typically used for describing such links during 
   network planning. This document introduces an optional Interface 
   Switching Capability Descriptor (ISCD) Availability sub-TLV to 
   extend the Generalized Multi-Protocol Label Switching (GMPLS) Open 
   Shortest Path First (OSPF) routing protocol. This extension can be 
   used for route computation in a network that contains links with 
   variable discrete bandwidth. Note, this document only covers the 
   mechanisms by which the availability information is distributed. The 
   mechanisms by which availability information of a link is determined 
   and the use of the distributed information for route computation are 
   outside the scope of this document. It is intended that technology-
   specific documents will reference this document to describe specific 
   uses. 

    

Status of this Memo 

   This Internet-Draft is submitted in full conformance with the 
   provisions of BCP 78 and BCP 79.  

   Internet-Drafts are working documents of the Internet Engineering 
   Task Force (IETF), its areas, and its working groups.  Note that 
   other groups may also distribute working documents as Internet-
   Drafts. 

 
 
 
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Internet-Draft    Availability extension to OSPF-TE       October 2016 
    

   Internet-Drafts are draft documents valid for a maximum of six 
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   This Internet-Draft will expire on April 24, 2016. 

Copyright Notice 

   Copyright (c) 2016 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. 

Table of Contents 

   1. Introduction ................................................ 3 
   2. Overview .................................................... 4 
   3. Extension to OSPF Routing Protocol........................... 4 
      3.1. ISCD Availability sub-TLV............................... 4 
      3.2. Signaling Process....................................... 5 
   4. Security Considerations...................................... 6 
   5. IANA Considerations ......................................... 6 
   6. References .................................................. 7 
      6.1. Normative References.................................... 7 
      6.2. Informative References.................................. 7 
   7. Acknowledgments ............................................. 8 
 
Conventions used in this document 

 
 
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Internet-Draft    Availability extension to OSPF-TE       October 2016 
    

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", 
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this 
   document are to be interpreted as described in RFC-2119 [RFC2119]. 
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