Dynamic Link Exchange Protocol (DLEP)
draft-ietf-manet-dlep-18
The information below is for an old version of the document |
Document |
Type |
|
Active Internet-Draft (manet WG)
|
|
Last updated |
|
2016-02-04
|
|
Replaces |
|
draft-sratliff-manet-dlep
|
|
Stream |
|
IETF
|
|
Intended RFC status |
|
Proposed Standard
|
|
Formats |
|
pdf
htmlized
bibtex
|
|
Reviews |
|
|
Stream |
WG state
|
|
WG Document
|
|
Document shepherd |
|
Justin Dean
|
|
Shepherd write-up |
|
Show
(last changed 2015-06-10)
|
IESG |
IESG state |
|
AD is watching
|
|
Consensus Boilerplate |
|
Unknown
|
|
Telechat date |
|
|
|
Responsible AD |
|
Alvaro Retana
|
|
Send notices to |
|
(None)
|
Mobile Ad hoc Networks Working Group S. Ratliff
Internet-Draft VT iDirect
Intended status: Standards Track S. Jury
Expires: August 7, 2016 Cisco Systems
D. Satterwhite
Broadcom
R. Taylor
Airbus Defence & Space
B. Berry
February 4, 2016
Dynamic Link Exchange Protocol (DLEP)
draft-ietf-manet-dlep-18
Abstract
When routing devices rely on modems to effect communications over
wireless links, they need timely and accurate knowledge of the
characteristics of the link (speed, state, etc.) in order to make
routing decisions. In mobile or other environments where these
characteristics change frequently, manual configurations or the
inference of state through routing or transport protocols does not
allow the router to make the best decisions. A bidirectional, event-
driven communication channel between the router and the modem is
necessary.
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
material or to cite them other than as "work in progress."
This Internet-Draft will expire on August 7, 2016.
Ratliff, et al. Expires August 7, 2016 [Page 1]
Internet-Draft Dynamic Link Exchange Protocol (DLEP) February 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 . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1. Requirements . . . . . . . . . . . . . . . . . . . . . . 7
2. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . 7
2.1. Assumptions . . . . . . . . . . . . . . . . . . . . . . . 9
3. Destinations . . . . . . . . . . . . . . . . . . . . . . . . 9
3.1. Router-requested Destinations . . . . . . . . . . . . . . 10
4. Metrics . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5. DLEP Session Flow . . . . . . . . . . . . . . . . . . . . . . 12
5.1. Peer Discovery State . . . . . . . . . . . . . . . . . . 12
5.2. Session Initialization State . . . . . . . . . . . . . . 14
5.3. In-Session State . . . . . . . . . . . . . . . . . . . . 15
5.3.1. Heartbeats . . . . . . . . . . . . . . . . . . . . . 16
5.4. Session Termination State . . . . . . . . . . . . . . . . 16
5.5. Session Reset state . . . . . . . . . . . . . . . . . . . 17
5.5.1. Unexpected TCP connection termination . . . . . . . . 17
6. Transaction Model . . . . . . . . . . . . . . . . . . . . . . 17
7. Extensions . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.1. Experiments . . . . . . . . . . . . . . . . . . . . . . . 18
8. Scalability . . . . . . . . . . . . . . . . . . . . . . . . . 19
9. DLEP Signal and Message Structure . . . . . . . . . . . . . . 19
9.1. DLEP Signal Header . . . . . . . . . . . . . . . . . . . 20
9.2. DLEP Message Header . . . . . . . . . . . . . . . . . . . 20
9.3. DLEP Generic Data Item . . . . . . . . . . . . . . . . . 21
10. DLEP Signals and Messages . . . . . . . . . . . . . . . . . . 21
10.1. Peer Discovery Signal . . . . . . . . . . . . . . . . . 22
10.2. Peer Offer Signal . . . . . . . . . . . . . . . . . . . 23
10.3. Session Initialization Message . . . . . . . . . . . . . 23
10.4. Session Initialization Response Message . . . . . . . . 24
Show full document text