Re: Serial overruns & ppp - how do I know if I ever have them? - Article 173 - go-pugleaf

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Article #173

Re: Serial overruns & ppp - how do I know if I ever have them?

#173

From: Richard Lamont
Date: Sat, 14 Mar 1998 00:00

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In article <slrn6gljd1.q2.$julies/newsreply$@merp.demon.co.uk>,
	$julies/newsreply$@merp.demon.co.uk (Julie Brandon) writes:

> Okay, simple question!  Linux v2.0.33 & pppd 2.2.0f with a external
> modem using hardware handshaking, and 115K2 data rate...
> 
> How would I know if I am having serial overruns (i.e. not guessing
> from transfer speeds or pauses but actually *know*)?  
> 
> I'm trying to get our system flowing nicely under ppp, but I can't
> really tell whether or not I'm loosing out due to overruns.

Surely ifconfig reports serial overruns? If you don't trust ifconfig,
try downloading ftp.d.c.u/pub/test/regularfile. Assuming Demon's
machine and network are working properly, which has been known on
occasion, you should get 11 KB/sec download. Watch the RxD LED -
it will be on solidly. A damaged packet or two will show. Using
the hash option on the ftp client also gives a good indication of
pauses.

-- 
Richard Lamont
richard@stonix.demon.co.uk
http://www.stonix.demon.co.uk/

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From: richard@stonix.demon.co.uk (Richard Lamont)
Subject: Re: Serial overruns & ppp - how do I know if I ever have them?
Date: 1998/03/14
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