OSPF-TE Link Availability Extension for Links with Variable Discrete Bandwidth
draft-ietf-ccamp-ospf-availability-extension-07

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 2016-10-20 (latest revision 2016-10-08)
Replaces draft-long-ccamp-ospf-availability-extension
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Fatai Zhang
Shepherd write-up Show (last changed 2016-08-25)
IESG IESG state In Last Call (ends 2016-10-24)
Consensus Boilerplate Yes
Telechat date
Responsible AD Deborah Brungard
Send notices to "Fatai Zhang" <zhangfatai@huawei.com>
IANA IANA review state IANA OK - Actions Needed
Network Working Group                                     H. Long, M.Ye 
Internet Draft                             Huawei Technologies Co., Ltd         
Intended status: Standards Track                              G. Mirsky 
                                                               Ericsson   
                                                         A.D'Alessandro 
                                                   Telecom Italia S.p.A 
                                                                H. Shah 
                                                                  Ciena         
Expires: April 2017                                     October 8, 2016  
                                      
    OSPF-TE Link Availability Extension for Links with Variable Discrete 
                                Bandwidth 
            draft-ietf-ccamp-ospf-availability-extension-07.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 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. 

    

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. 

   Internet-Drafts are draft documents valid for a maximum of six 
   months and may be updated, replaced, or obsoleted by other documents 

 
 
 
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   at any time.  It is inappropriate to use Internet-Drafts as 
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   This Internet-Draft will expire on April 8, 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...................................... 5 
   5. IANA Considerations ......................................... 6 
   6. References .................................................. 6 
      6.1. Normative References.................................... 6 
      6.2. Informative References.................................. 7 
   7. Acknowledgments ............................................. 8 
 
Conventions used in this document 

   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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   The following acronyms are used in this draft: 

   GMPLS     Generalized Multi-Protocol Label Switching 

   LSA       Link State Advertisement 
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