RTT meaning

Michael Voight mvoight at cisco.com
Fri Sep 3 14:52:41 UTC 1999


It doesn't need a ping packet, the query itself will let it determine
rtt.

Michael

Edmund wrote:
> 
> I often heard of local name server using RTT to select the best
> Root name server for query.  How is RTT calculated ?  I think
> that it won't be just simply sending Ping packet and calculate
> the Round Trip Delay since Ping packet only counts for network
> delay but it does not count for the Root DNS server respond
> time to query.


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