In a networking environment including one or more network processing (NP) devices
and implementing a routing protocol for routing data packets from a source NP devices
to destination NP devices via a switch fabric, with each network processing device
supporting a number of interface ports, a system and method for enabling a routing
system to recover more quickly that the routing protocol so as to significantly
reduce the occurrence of lost data packets to a failed target interface/blade.
The routing system is enabled to track the operational status of each network processor
device and operational status of destination ports supported by each network processor
device in the system, and maintains the operational status as a data structure
at each network processing device. Prior to routing packets, an expedient logical
determination is made as to the operational status of a target network processing
device and target interface port of a current packet to be routed as represented
in the data structure maintained at the source NP device. If the target blade/interface
is not operations, an alternative route may be provided by ECMP. In this manner,
correct routing of packets is ensured with reduced occurrence of lost data packets
due to failed target NP devices/ports.