Control plane failure recovery in a network

Details Control plane failure recovery in a network Control plane failure recovery in a network

2006-10-31

2006-10-31

Fleming, Fritz (Department: 2181)

Electrical computers and digital processing systems: multicomput

Network-to-computer interfacing

C709S238000, C370S352000, C370S353000, C370S354000, C370S355000, C370S356000

Reexamination Certificate

active

07130926

ABSTRACT:
Label information used by a downstream LSR is mirrored on an upstream LSR. In particular, a copy of the label information database in the downstream LSR from LDP sessions is stored on the upstream LSR. The label information database and corresponding mirror are synchronized. The mirror is employed to facilitate recovery from control plane failure through comparison of the label information database with the mirror. For example, the intersection of the label information database and the mirror may be calculated and employed as the updated label information database and mirror.

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