Bibliographic data

Document EP000002461501A1 (Pages: 12)

Bibliographic data Document EP000002461501A1 (Pages: 12)
INID Criterion Field Contents
54 Title TI [DE] Tunnel-Folgemeldung für transparente Uhr
[EN] Tunnel follow-up message for transparent clock
[FR] Message de suivi de tunnel pour horloge transparente
71/73 Applicant/owner PA ALCATEL LUCENT, FR
72 Inventor IN BUI DINH-THAI, FR ; LE PALLEC MICHEL, FR
22/96 Application date AD Dec 1, 2010
21 Application number AN 10290634
Country of application AC EP
Publication date PUB Jun 6, 2012
33
31
32		 Priority data PRC
PRN
PRD

51 IPC main class ICM H04J 3/06 (2006.01)
51 IPC secondary class ICS
IPC additional class ICA
IPC index class ICI
Cooperative patent classification CPC H04J 3/06
H04J 3/0638
H04J 3/0664
H04L 63/123
MCD main class MCM H04J 3/06 (2006.01)
MCD secondary class MCS
MCD additional class MCA
57 Abstract AB [EN] A method for handling at least one encapsulated synchronization message (6) by a tunnel node (1-4) including a transparent clock, said method comprising the following steps: - generating a signature (7) from the encapsulated synchronization message (6); - generating, or updating if it has already been generated, a tunnel follow-up message (8) which includes the encapsulated synchronization message signature (7); - measuring the encapsulated synchronization message residence time across the tunnel node (1-4); - updating the correction field of the tunnel follow-up message with the measured residence time.
56 Cited documents identified in the search CT
56 Cited documents indicated by the applicant CT
56 Cited non-patent literature identified in the search CTNP ALBERT TREYTL ET AL: "Securing IEEE 1588 by IPsec tunnels - An analysis", PRECISION CLOCK SYNCHRONIZATION FOR MEASUREMENT CONTROL AND COMMUNICATION (ISPCS), 2010 INTERNATIONAL IEEE SYMPOSIUM ON, IEEE, PISCATAWAY, NJ, USA, 27 September 2010 (2010-09-27), pages 83 - 90, XP031780849, ISBN: 978-1-4244-5978-0 2;
DAVARI A OREN BROADCOM L MARTINI CISCO S: "Transporting PTP messages (1588) over MPLS Networks; draft-davari-tictoc-1588overmpls-00.txt", TRANSPORTING PTP MESSAGES (1588) OVER MPLS NETWORKS; DRAFT-DAVARI-TICTOC-1588OVERMPLS-00.TXT, INTERNET ENGINEERING TASK FORCE, IETF; STANDARDWORKINGDRAFT, INTERNET SOCIETY (ISOC) 4, RUE DES FALAISES CH- 1205 GENEVA, SWITZERLAND, 23 September 2010 (2010-09-23), pages 1 - 13, XP015071277 0;
SÃ CR BASTIEN JOBERT FRANCE TELECOM FRANCE: "Issues with the Transparent Clock concept of PTPv2 in a telecom environment;28", ITU-T DRAFTS ; STUDY PERIOD 2009-2012, INTERNATIONAL TELECOMMUNICATION UNION, GENEVA ; CH, vol. Study Group 15 ; 13, 6 October 2010 (2010-10-06), pages 1 - 5, XP017448523 0;
XU HUAWEI TECHNOLOGIES Y: "IPsec security for packet based synchronization; draft-xu-tictoc-ipsec-security-for-synchronization-00.txt", IPSEC SECURITY FOR PACKET BASED SYNCHRONIZATION; DRAFT-XU-TICTOC-IPSEC-SECURITY-FOR-SYNCHRONIZATION-00.TXT, INTERNET ENGINEERING TASK FORCE, IETF; STANDARDWORKINGDRAFT, INTERNET SOCIETY (ISOC) 4, RUE DES FALAISES CH- 1205 GENEVA, SWITZERLAND, 16 October 2010 (2010-10-16), pages 1 - 13, XP015071736 0
56 Cited non-patent literature indicated by the applicant CTNP "Issues with the Transparent Clock concept of PTPv2", ITU-T SG15/Q13 INTERIM MEETING, 16 March 2009 (2009-03-16) 1
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