Deep Packet Inspection engine delay. <G>
On Jun 26, 2008, at 6:51 PM, Frank Bulk wrote:
Our upstream provider has a connection to AT&T (12.88.71.13) where I
relatively consistently measure with a RTT of 15 msec, but the next
hop
(12.122.112.22) comes in with a RTT of 85 msec. Unless AT&T is
sending that
traffic over a cable modem or to Europe and back, I can't see a
reason why
there is a consistent ~70 msec jump in RTT. Hops farther along the
route
are just a few msec more each hop, so it doesn't appear that
12.122.112.22
has some kind of ICMP rate-limiting.
Is this a real performance issue, or is there some logical
explanation?
Frank
James R. Cutler
[EMAIL PROTECTED]
