Title:
NTPオンパスサポートのためのアドおよびドロップエレメント、およびNTPドメインとIEEE-1588プロトコルドメインの間の相互運用方法
Document Type and Number:
Japanese Patent JP5373185
Kind Code:
B2
Abstract:
A method and system for providing add/drop elements at boundaries between NTP domains and IEEE-1588 domains. The add/drop elements encapsulate incoming NTP messaging time-stamps within 1588 messages, and update the NTP time-stamp information upon entry/exit from the IEEE-1588 domain. The add/drop element system is particularly useful for overcoming the requirements for extra time gateways in order to achieve timing parity between IETF NTP and IEEE1588V2.
Inventors:
Le Palatsk, Michel
Beyui, Dain Thai
Beyui, Dain Thai
Application Number:
JP2012506589A
Publication Date:
December 18, 2013
Filing Date:
April 21, 2009
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
H04L12/46; H04W56/00
Domestic Patent References:
| JP2008271206A |
Other References:
Michel Le Pallec et al.,Time and Frequency Distribution Over Packet Switched Networks,Bell Labs Technical Journal,2009年,Vol.14, No.2,pp.131-154
Attorney, Agent or Firm:
Kawaguchi International Patent Office