Electrical computers and digital processing systems: multicomput – Computer-to-computer data routing
Reexamination Certificate
2011-02-08
2011-02-08
Tran, Philip B (Department: 2455)
Electrical computers and digital processing systems: multicomput
Computer-to-computer data routing
C709S239000, C709S224000, C709S249000, C370S351000
Reexamination Certificate
active
07886079
ABSTRACT:
In one embodiment, one or more path computation requests from path computation clients (PCCs) in a first network domain are received at a first border router (BR) arranged at the border of the first network domain and a second network domain. The first BR learns of a path computation element (PCE) in the second network domain. The PCE in the second network domain is informed of path computation information for the first network domain. One or more tunnels are established between the first BR and the PCE in the second network domain. One or more path computation requests from PCCs in the first network domain are passed from the first BR, through the one or more tunnels, to the PCE in the second network domain, to be serviced by the PCE in the second network domain using the path computation information for the first network domain.
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Previdi Stefano B.
Roy Abhay Kumar
Vasseur Jean-Philippe
Cesari and McKenna LLP
Cisco Technology Inc.
Tran Philip B
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