Switchover time is only a few seconds on the router. Packets that are switched or routed by the ASIC are not impacted by the RP switchover. However, if packets are punted to the RP for further processing, switching and routing will be impacted. The length of time can be due to a number of factors including the time needed for the previously active processor to obtain crash information, load code and microcode, and synchronize configurations between processors and line protocols and Cisco NSF-supported protocols.
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