Extensions to PCEP for Temporal LSP
draft-chen-pce-tts-05

Document Type Active Internet-Draft (individual)
Last updated 2016-12-29
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Internet Engineering Task Force                                  H. Chen
Internet-Draft                                       Huawei Technologies
Intended status: Standards Track                                  X. Liu
Expires: July 2, 2017                                           Ericsson
                                                                  M. Toy
                                                                 Verizon
                                                                  V. Liu
                                                            China Mobile
                                                                  L. Liu
                                                                 Fujitsu
                                                             K. Pithewan
                                                                Infinera
                                                       December 29, 2016

                  Extensions to PCEP for Temporal LSP
                       draft-chen-pce-tts-05.txt

Abstract

   For existing MPLS LSP tunnel services, it is hard for LSP tunnels to
   be booked in advance.  In addition, once an LSP tunnel is set up, it
   is assumed to consume a certain amount of resources such as link
   bandwidth forever.

   Temporal LSP tunnel services (TTS) provides an easy way for us to
   book temporal LSP tunnels in advance.  More importantly, a temporal
   LSP is an LSP with one or more time intervals and it is assumed to
   consume the resources and carry traffic only in these time intervals.

   This document specifies extensions to PCEP for computing a path for a
   temporal LSP, initiating and maintaining a temporal LSP with a
   sequence of time intervals, during each of which the LSP carries
   traffic.

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).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference

Chen, et al.              Expires July 2, 2017                  [Page 1]
Internet-Draft              PCE Temporal LSP               December 2016

   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on July 2, 2017.

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.

Chen, et al.              Expires July 2, 2017                  [Page 2]
Internet-Draft              PCE Temporal LSP               December 2016

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Conventions Used in This Document  . . . . . . . . . . . . . .  5
   4.  Operations Overview  . . . . . . . . . . . . . . . . . . . . .  5
     4.1.  Simple Time Interval . . . . . . . . . . . . . . . . . . .  5
     4.2.  Recurrent Time Interval  . . . . . . . . . . . . . . . . .  5
     4.3.  Elastic Time Interval  . . . . . . . . . . . . . . . . . .  6
     4.4.  Changes to Time Interval . . . . . . . . . . . . . . . . .  6
     4.5.  Graceful Periods . . . . . . . . . . . . . . . . . . . . .  7
   5.  Extensions to PCEP . . . . . . . . . . . . . . . . . . . . . .  8
     5.1.  Capability TLV in Existing PCE Discovery Protocol  . . . .  8
     5.2.  Open Message Extension . . . . . . . . . . . . . . . . . . 10
     5.3.  RP Object Extension  . . . . . . . . . . . . . . . . . . . 10
     5.4.  TIME INTERVAL Object . . . . . . . . . . . . . . . . . . . 11
       5.4.1.  Absolute Time Interval TLV . . . . . . . . . . . . . . 11
       5.4.2.  Relative Time Interval TLV . . . . . . . . . . . . . . 13
       5.4.3.  Recurrent Absolute Time Interval TLV . . . . . . . . . 14
       5.4.4.  Recurrent Relative Time Interval TLV . . . . . . . . . 16
Show full document text