[FreeBSD-6.1Release]About the removal of route cache in PCB

Hi, all:

I am wondering why the FreeBSD-6.1 version removes the route cache in PCB (struct inpcbin in_pcb.h)? Does the removal do anything good? Or its existence would have potential problems? 'Cause in my opinion, the removal would only produce extra time when emitting a packet since the routing table lookup is unavoidable. So there's must be a good reason for the change.

Best regards,

blue
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