System and method for virtual router failover in a network...

Details System and method for virtual router failover in a network... System and method for virtual router failover in a network...

2006-08-22

2006-08-22

Iqbal, Nadeem (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C709S224000

Reexamination Certificate

active

07096383

ABSTRACT:
In a network routing system, a control blade provides for redundancy and failover of virtual routers (VRs) instantiated by objects running on processing engines of the several virtual routing engines (VREs). When the control blade detects a failure of one processing engines, it may identify the virtual private networks (VPNs) and/or VRs operating on the failed processing engine. The control blade identifies a set of command lines corresponding with the identified VPNs and VRs, and replays the set of command lines with an identity of a new processing engine to recreate the identified VPNs and VRs on the new processing engine.

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