Carl Johnson wrote: > ow...@netptc.net 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]
