US 7,577,090 B2
	Method and system for providing availability and reliability for a telecommunication network entity
Jianming Xu, Plano, Tex. (US); Charles Marvin Berteau, Plano, Tex. (US); Ghassan Naim, Garland, Tex. (US); Seshagiri Rao Madhavapeddy, Richardson, Tex. (US); Pardeep Kohli, Plano, Tex. (US); and Shiang Yueng Feng, Colleyville, Tex. (US)
Assigned to Alcatel-Lucent USA Inc., Murray Hill, N.J. (US)
Appl. No. 10/597,950 PCT Filed Feb. 14, 2005, PCT No. PCT/US2005/004422 § 371(c)(1), (2), (4) Date Aug. 14, 2006, PCT Pub. No. WO2005/081447, PCT Pub. Date Sep. 01, 2005.
Claims priority of provisional application 60/544622, filed on Feb. 13, 2004.
Claims priority of provisional application 60/640844, filed on Dec. 30, 2004.
Prior Publication US 2007/0165516 A1, Jul. 19, 2007
Int. Cl. H04L 1/22 (2006.01); H04L 12/26 (2006.01)

U.S. Cl. 370—219  [370/220]

21 Claims

1. A system for providing redundancy for an entity in a telecommunications network, the system comprising: a first network entity of a first network, adapted to send and receive traffic; and a second network entity, of a second network, configured to operate as a standby network entity, wherein the second network entity takes control of only a portion of the functions of the first network entity in response to a partial failure in the first network entity when a failure to receive either a primary status message by the second network over the first network or a secondary status message from the first network over the second network.