Re: 2.2.5 kernel & TCP/IP Terminal Server problem

Riley Williams (rhw@MemAlpha.CX)
Fri, 24 Sep 1999 16:02:41 +0100 (GMT)


Hi Alan.

>> When the users telnet to a RH 6.0 system (2.2.5 kernel out of
>> the box) the screens refresh poorly, i.e. sluggish and pausy,
>> may take 3-5 secs to draw one 80x25 screen (terminals run at
>> 19200 generally, and are up to it, so little more than a second
>> is normal....

> I need a tcpdump of a session to judge this. There are two
> probable causes since 2.0 is ok

> 1. The spiderports don't handle SACK and are confused by the
> offers

> 2. The spiderports don't handle the way Linux deals with small
> window offers and retransmits. PC/TCP has a horrible bug there
> and the results sound similar.

Not sure if it's relevant, but...

I had a similar problem when using the 2.2.5-15 kernel rpm, but it
vanished with the 2.2.5-22 rpm. Perhaps somebody could have a look at
the differences between those two rpm's ???

Best wishes from Riley.

+----------------------------------------------------------------------+
| There is something frustrating about the quality and speed of Linux |
| development, ie., the quality is too high and the speed is too high, |
| in other words, I can implement this XXXX feature, but I bet someone |
| else has already done so and is just about to release their patch. |
+----------------------------------------------------------------------+
* ftp://ftp.MemAlpha.cx/pub/rhw/Linux
* http://www.MemAlpha.cx/Linux/

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