Re: Problems with some web sites (tuning?)

Carl Johnson wrote:
owens@xxxxxxxxxx writes:

... The
timeout or "lockup" can indicate that the packets cannot be
reassembled at the destination (your computer) and the TCP protocol
times out waiting for one or more missing packets.

That makes sense to me, but why is it only a very few web sites? I
haven't heard complaints about poor wikipedia access, so it appears
that most other people don't have problems with that either. One idea
I thought of is that maybe they have very tight timeout limits, and
since I am on dialup, I often exceed those limits and they then drop
packets.

That theory seems reasonable--Google used to exhibit similar behavior.

When I was using PPP, if I posted a Google search when nothing was
going on on my network connection, it would work fine. However, if I
submitted a search when some other connection was sending packets,
causing the packet to and from Google to take a couple of seconds, the
Google connection would time out. Presumably they were trying to defend
against SYN flood attacks. I wrote to Google and a couple of months
later the problem stopped happening.


Any idea how I could trace something like dropped packets?

It might not be _dropped_ packets--it might be high packet latency.


Daniel
--
(Plain text sometimes corrupted to HTML "courtesy" of Microsoft Exchange.) [F]

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