Multiplex communications – Fault recovery – Bypass an inoperative station
Reexamination Certificate
2008-08-15
2010-12-14
Cho, Hong (Department: 2467)
Multiplex communications
Fault recovery
Bypass an inoperative station
C370S217000, C370S225000
Reexamination Certificate
active
07852753
ABSTRACT:
An apparatus and method for centrally selecting a control network from redundant control networks is described. In one embodiment of the invention, a network element includes a first control network and a second control network. Each line card implements a bonding interface to bond a first port coupled with the first control network and a second port coupled with the second control network. On each line card, the first and second ports receive a control network selection message from the first and second control networks respectively. A link layer driver on each line card interprets those selection messages and determines which control network is active and reports that control network as up to the bonding interface and reports the other control network as down to the bonding interface. The bonding interface selects the control network reported as up and application software uses that control network.
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“Checkpoint SPLAT Link Aggregation and High Availability with Bonding”, Sep. 14, 2006, TLAnews.com, 2 pages.
Bryant James R.
Chen Lei G.
Newpol Richard S.
Blakely , Sokoloff, Taylor & Zafman LLP
Cattungal Ajay P
Cho Hong
Telefonaktiebolaget L M Ericsson
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