--- 1/draft-ietf-tictoc-requirements-00.txt 2011-03-08 14:15:56.000000000 +0100 +++ 2/draft-ietf-tictoc-requirements-01.txt 2011-03-08 14:15:56.000000000 +0100 @@ -1,64 +1,64 @@ TICTOC S. Rodrigues -Internet-Draft Zarlink Semiconductor -Intended status: Informational K. Lindqvist -Expires: January 6, 2010 Netnod - July 5, 2009 +Internet-Draft IDT +Intended status: Informational P. Meyer +Expires: September 5, 2011 Zarlink + K. Lindqvist + Netnod + March 4, 2011 TICTOC Requirement - draft-ietf-tictoc-requirements-00.txt + draft-ietf-tictoc-requirements-01.txt + +Abstract + + Distribution of high precision time and frequency over the Internet + and special purpose IP networks is becoming more and more needed as + IP networks replace legacy networks and as new applications with need + for frequency and time are developed on the Internet. The IETF + formed the TICTOC working group to address the problem and perform an + analysis on existing solutions and the needs. This document + summarizes application needs, as described and agreed on at an TICTOC + interim meeting held in Paris from June 16 to 18, 2008. Status of this Memo This Internet-Draft is submitted to IETF 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. + 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." - The list of current Internet-Drafts can be accessed at - http://www.ietf.org/ietf/1id-abstracts.txt. - - The list of Internet-Draft Shadow Directories can be accessed at - http://www.ietf.org/shadow.html. - - This Internet-Draft will expire on January 6, 2010. + This Internet-Draft will expire on September 5, 2011. Copyright Notice - Copyright (c) 2009 IETF Trust and the persons identified as the + Copyright (c) 2011 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 in effect on the date of - publication of this document (http://trustee.ietf.org/license-info). - Please review these documents carefully, as they describe your rights - and restrictions with respect to this document. - -Abstract - - Distribution of high precision time and frequency over the Internet - and special purpose IP networks is becoming more and more needed as - IP networks replace legacy networks and as new applications with need - for frequency and time are developed on the Internet. The IETF - formed the TICTOC working group to address the problem and perform an - analysis on existing solutions and the needs. This document - summarizes application needs, as described and agreed on at an TICTOC - interim meeting held in Paris from June 16 to 18, 2008. + 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. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Applications Requirements . . . . . . . . . . . . . . . . . . 3 3.1. Cellular Backhauling . . . . . . . . . . . . . . . . . . . 3 3.1.1. Cellular Backhauling . . . . . . . . . . . . . . . . . 4 3.1.2. Cellular Backhaul Requirements Summary . . . . . . . . 10 3.2. Circuit Emulation . . . . . . . . . . . . . . . . . . . . 11 @@ -1052,30 +1052,30 @@ 8. Acknowledgements The authors wish to thank Stewart Bryant, Yaakov Stein, Karen O'Donoghue, Laurent Montini, Antti Pietilainen, Stefano Ruffini, Vladimir Smotlacha, Greg Dowd, Doug Arnold and the LXI Consortium Technical Committee for input on this draft. 9. Informative References - [1588] IEEE, "1588-2002 Standard for A Precision Clock + [1588] IEEE, "1588-2008 Standard for A Precision Clock Synchronization Protocol for Networked Measurement and Control Systems". [G8261] ITU-T, "Recommendation G.8261/Y.1361 - Timing and synchronization aspects in packet networks", April 2008. [G8262] ITU-T, "Recommendation G.8262/Y.1362 - Timing Characteristics of Synchronous Ethernet Equipment Slave - Clock (EEC)", August 2007. + Clock (EEC)", July 2010. [G8264] ITU-T, "Recommendation G.8264/Y.1364 - Distribution of timing through packet networks", 2008. [RFC1305] Mills, D., "Network Time Protocol (Version 3) Specification, Implementation", RFC 1305, March 1992. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. @@ -1340,25 +1340,34 @@ likely to extend to an MPLS environment. Two new work items, G.paclock.bis and G.pacmod.bis extend the work, and in particular, G.pacmod.bis intends to introduce time transfer. The scope for G.paclock.bis is to define the requirements for packet-based clocks. This is an area where the IETF, with its expertise in IP and MPLS networks, may co-operate with the ITU. Authors' Addresses Silvana Rodrigues - Zarlink Semiconductor + IDT + 603 March Road + Ottawa K2K 2M5 + Canada + + Phone: +1 613 592-0714 + Email: silvana.rodrigues@idt.com + Peter Meyer + Zarlink 400 March Road Ottawa K2K 3H4 Canada - Phone: +1 613 2707258 - Email: silvana.rodrigues@zarlink.com + Phone: +1 613 592-0200 + Email: Peter.Meyer@zarlink.com + Kurti Erik Lindqvist Netnod Bellmansgatan 30 Stockholm S-118 47 Sweden Phone: +46 708 30 60 01 Email: kurtis@kurtis.pp.se