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- Path: mail2news.demon.co.uk!bothwick.demon.co.uk
- From: Neil Bothwick <neil@bothwick.demon.co.uk>
- Newsgroups: demon.ip.support.amiga,comp.sys.amiga.networking
- Subject: Re: Scaleable News - My Arse!
- Date: 28 Feb 96 10:21:35 +0000
- Organization: The Write Way
- Message-ID: <2508.6632T621T1763@bothwick.demon.co.uk>
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- In-Reply-To: <9602261839.AA009o3@stokes.demon.co.uk>
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-
- Hi there Philip Stokes, I believe it was you who said:
-
- >> 897 packets (269191 bytes) received in-sequence
- >> 784 completely duplicate packets (374882 bytes)
-
- >> This was downloading 118 news articles, half a dozen emails and a
- >> couple of FTP downloads, GetTCP reported 444cps. Does this mean I
- >> got 269K *plus* a wasted 374K in duplicate packets? In that case my
- >> 444 cps was really more than 1200 cps.
-
- > Yes.
-
- >> Who in Demon should I send this to?
-
- > No one, really. Duplicate packets are a symptom of error correction.
- > If you're getting them all the time, that would seem to rule out the
- > bug in news2. I normally don't see any more than a handful of dupes so
- > I think it does tend to suggest a problem at your end. Although I have
- > some understanding of how duplicate packets occur under TCP error
- > correction, I'm certainly not the best person to offer advice on how
- > to overcome them. One possibility _might_ be your modem or cabling. If
- > you can interrogate your modem for link statistics (ATI6 on my USR) it
- > might be interesting to see if you are getting any blers.
-
- Ok, yesterday I linked up, waited for my mail to finish downloading
- and then started GetTCP. After the news had finished I downloaded a
- couple of files from ftp.demon with AmiFTP. GetTCP gave 516 cps, ftp
- over 1400. Netstat said:
-
- 1061 packets (449591 bytes) received in-sequence
- 141 completely duplicate packets (64960 bytes)
-
- However, in the evening I got 500-800 cps from ncftp connected to
- doc.ic.ac.uk with netstat saying
-
- 719 packets (270465 bytes) received in-sequence
- 643 completely duplicate packets (314223 bytes)
-
- I then did link down, stopnet, startnet, link up to get news. I got
-
- 360 packets (124908 bytes) received in-sequence
- 7 completely duplicate packets (2472 bytes)
-
- and 1231 cps :-/ This morning I was back to 432 cps for news. Last
- night really threw me as every other time I've had fast ftp and slow
- news, although I don't usually use ncftp.
-
- I've even tried a "list all files since 20-jan-96" on each partition
- to see if there's any files changed in the last month that may have
- caused this. I'm getting *very* pissed off :-((
-
-
- Neil
- --
-
- | Neil Bothwick, Warrington, England |
- |--------------------------------------------------------|
- Do PAL taglines take up two scanlines? -- S.C.
-
-