From: "Geo" 

"Mike N."  wrote in message
news:7b5d11h6fkbgq1q662pi8el1e0heaa69iq{at}4ax.com...

>    Tracert waits for both  the ICMP response and DNS lookup.  It is fairly
> simple to do all the hops  in parallel with or without multithreading.

Well yeah it has to wait for the response but that doesn't mean it can't
send the next packet yet.

I send a TTL=1 packet, I don't need the response before I send TTL=2 thru
whatever. Same with the DNS requests, I can make the requests as fast as
the icmp's return. The operation doesn't need to be serialized like the NT
version works. On NT it sends a packet, waits for a response, 3 times, then
it does the dns lookup, then it increases the TTL and repeats. It doesn't
need to wait like that.

Geo.

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