Linux Modem Speed ?

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Newsgroups: comp.os.linux.setup, linux.redhat.ppp
Date: 1998/12/29

> I am dual-booting with WINNT 4.0 and RedHat 5.2 [...]  The Linux side is
> significantly slower than the NT side when connected to the Internet.
> [...]  My modem setting (setserial -a /dev/cua2) under Linux seems to be
> setup to allow 115200KB (i.e. as fast as it will go).

Whether or not this will help you, I have no idea… but I thought I'd offer it since it made a huge difference in my Linux ppp connection.

With kppp I went in and added some ppp arguments to set the MTU and MRU.

This is easy to do in Win9X with various shareware programs, (less easy to edit the registry to do it, but also possible) and it's pretty easy to do with kppp by just adding the "mtu 576" and "mru 576" entries under ppp arguments in kppp.

Now, whether those numbers are ideal for your connection I have no idea. They work great on mine… BUT, every ISP is different. The numbers can run from 296-1500… and only experimentation will figure out what's best for you.

Heck, those arguments might not work at ALL on your pc… but they've dramatically sped up my connection, to the point where Linux is now noticeably quicker downloading than Win98 (as it ought to be!) Before those arguments, it worked, but much slower. Transfer rates on the same file improved from the 1.0 k/sec range to 3.8-4.0 k/sec, although connection speed was identical. No stringent testing, though, so don't beat me up over those numbers…

Worth a shot, anyway.

Jase

Linux Modem Speed ?

I actually tweaked a few thing (actually I am not sure what exactly it was that finally worked - maybe a combination of a few) but now my modem screams along seemingly faster than my WINNT config. Regarding some of these "connection monitoring tools" like the WindowMaker docable network monitor apps,kppp tools, etc. How reliable are they? I ask because under WINNT 4.0 I am very suspect of both the connection rate and the download speeds NT is telling me I am getting. Is it fair to compare the Linux tools (if so which ones) to the WINNT DUN monitors?

Maybe I am being picky here but I am very interested in connection speeds and download speeds with Linux (RedHat 5.2) compared to WINNT 4.0. And also connection speeds under Linux depending if I use kppp, WvDial, or just command line. I am trying to get some "comparable" network monitoring tools for both NT and Linux so I am not comparing apples to oranges.

no_modem

Linux Modem Speed ?

> Are there any suggestions anyone has to tell exactly how fast I am connected?

Netscape downloads give an indication (average) at the bottom of the window.

There's a "pppload" which shows a plot of instantaneous Snd/Rcv rates.

There are some other network load monitors in

http://www.aa.net/~swear/pedia/networking.html and http://www.aa.net/~swear/pedia/sys-admin.html

Gary Momarison