[xcp] Error handling in XCP code (nodiv version)

[Jain, Saurabh]

Hi All,

How is error recovery done by the end hosts in the XCP code (nodiv version) 
whenever a packet is lost? Is the congestion window reduced to half and fast 
recovery and fast retransmission invoked while keeping the congestion window 
frozen as long as the host recovers from the error? Does the code uses SACK 
or can it be enabled?

Thanks in advance,
Saurabh