draft-ietf-tictoc-requirements-00.txt   draft-ietf-tictoc-requirements-01.txt 
TICTOC S. Rodrigues TICTOC S. Rodrigues
Internet-Draft Zarlink Semiconductor Internet-Draft IDT
Intended status: Informational K. Lindqvist Intended status: Informational P. Meyer
Expires: January 6, 2010 Netnod Expires: September 5, 2011 Zarlink
July 5, 2009 K. Lindqvist
Netnod
March 4, 2011
TICTOC Requirement 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 Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with the This Internet-Draft is submitted to IETF in full conformance with the
provisions of BCP 78 and BCP 79. provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that Task Force (IETF). Note that other groups may also distribute
other groups may also distribute working documents as Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at This Internet-Draft will expire on September 5, 2011.
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.
Copyright Notice 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. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents in effect on the date of Provisions Relating to IETF Documents
publication of this document (http://trustee.ietf.org/license-info). (http://trustee.ietf.org/license-info) in effect on the date of
Please review these documents carefully, as they describe your rights publication of this document. Please review these documents
and restrictions with respect to this document. carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
Abstract include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
Distribution of high precision time and frequency over the Internet described in the Simplified BSD License.
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.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Applications Requirements . . . . . . . . . . . . . . . . . . 3 3. Applications Requirements . . . . . . . . . . . . . . . . . . 3
3.1. Cellular Backhauling . . . . . . . . . . . . . . . . . . . 3 3.1. Cellular Backhauling . . . . . . . . . . . . . . . . . . . 3
3.1.1. Cellular Backhauling . . . . . . . . . . . . . . . . . 4 3.1.1. Cellular Backhauling . . . . . . . . . . . . . . . . . 4
3.1.2. Cellular Backhaul Requirements Summary . . . . . . . . 10 3.1.2. Cellular Backhaul Requirements Summary . . . . . . . . 10
3.2. Circuit Emulation . . . . . . . . . . . . . . . . . . . . 11 3.2. Circuit Emulation . . . . . . . . . . . . . . . . . . . . 11
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8. Acknowledgements 8. Acknowledgements
The authors wish to thank Stewart Bryant, Yaakov Stein, Karen The authors wish to thank Stewart Bryant, Yaakov Stein, Karen
O'Donoghue, Laurent Montini, Antti Pietilainen, Stefano Ruffini, O'Donoghue, Laurent Montini, Antti Pietilainen, Stefano Ruffini,
Vladimir Smotlacha, Greg Dowd, Doug Arnold and the LXI Consortium Vladimir Smotlacha, Greg Dowd, Doug Arnold and the LXI Consortium
Technical Committee for input on this draft. Technical Committee for input on this draft.
9. Informative References 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 Synchronization Protocol for Networked Measurement and
Control Systems". Control Systems".
[G8261] ITU-T, "Recommendation G.8261/Y.1361 - Timing and [G8261] ITU-T, "Recommendation G.8261/Y.1361 - Timing and
synchronization aspects in packet networks", April 2008. synchronization aspects in packet networks", April 2008.
[G8262] ITU-T, "Recommendation G.8262/Y.1362 - Timing [G8262] ITU-T, "Recommendation G.8262/Y.1362 - Timing
Characteristics of Synchronous Ethernet Equipment Slave Characteristics of Synchronous Ethernet Equipment Slave
Clock (EEC)", August 2007. Clock (EEC)", July 2010.
[G8264] ITU-T, "Recommendation G.8264/Y.1364 - Distribution of [G8264] ITU-T, "Recommendation G.8264/Y.1364 - Distribution of
timing through packet networks", 2008. timing through packet networks", 2008.
[RFC1305] Mills, D., "Network Time Protocol (Version 3) [RFC1305] Mills, D., "Network Time Protocol (Version 3)
Specification, Implementation", RFC 1305, March 1992. Specification, Implementation", RFC 1305, March 1992.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
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likely to extend to an MPLS environment. Two new work items, 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.paclock.bis and G.pacmod.bis extend the work, and in particular,
G.pacmod.bis intends to introduce time transfer. The scope for G.pacmod.bis intends to introduce time transfer. The scope for
G.paclock.bis is to define the requirements for packet-based clocks. 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 This is an area where the IETF, with its expertise in IP and MPLS
networks, may co-operate with the ITU. networks, may co-operate with the ITU.
Authors' Addresses Authors' Addresses
Silvana Rodrigues 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 400 March Road
Ottawa K2K 3H4 Ottawa K2K 3H4
Canada Canada
Phone: +1 613 2707258 Phone: +1 613 592-0200
Email: silvana.rodrigues@zarlink.com Email: Peter.Meyer@zarlink.com
Kurti Erik Lindqvist Kurti Erik Lindqvist
Netnod Netnod
Bellmansgatan 30 Bellmansgatan 30
Stockholm S-118 47 Stockholm S-118 47
Sweden Sweden
Phone: +46 708 30 60 01 Phone: +46 708 30 60 01
Email: kurtis@kurtis.pp.se Email: kurtis@kurtis.pp.se
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