Re: [techtalk] Poor performance on home LAN
Excerpts from linuxchix: 7-Feb-100 [techtalk] Poor performance.. by "Nathan T. Lynch"@austin > What's with the big numbers in the TX 'frame' fields? I'm not even sure > what that field signifies, someone care to enlighten me? (man ifconfig > wasn't much help.) According to the ifconfig source, it's frame alignment error. I think frame alignment error usually means that it gets a packet/frame that is not properly aligned, IE not a multiple of 8 bits. That definitely shouldn't be happening that often. > I'm getting the ominous feeling that this might have something to do > with my mobo... like a faulty PCI bus or something? That could be. Though my intuition would be that a faulty PCI bus would produce more in the "errors" field, because of corrupted packets. If other computers on the network work fine without the new desktop, then its probably not the network. If multiple ethernet cards do the same thing, then its probably not the ethernet card. That pretty much leaves the OS (what v. of the kernel? It's probably not the driver, if the exact same thing has been happening with 3 different cards) or the hardware (you aren't overclocking, are you? does the card share an interrupt?)... Well, that probably wasn't much help. You should probably talk to someone who knows more about ethernet (linux-networking mailing list may be a good place to ask if noone here can help) :) [EMAIL PROTECTED] http://www.linuxchix.org
Re: [techtalk] Re: [grrltalk] yet another intro...
On Mon, 07 February 2000, Deb Richardson wrote: > > Just so all the new folks know...introductions should only be posted to > grrltalk. I get to crosspost stuff 'cuz I run the place ;) > > Thanks! > > - deb > > -- > [EMAIL PROTECTED] > and a very good job you do, Deb.. Kelly __ Free Internet Access from AltaVista: Get it, share it & win! http://freeaccess.altavista.com/pika/www/initweb.jsp [EMAIL PROTECTED] http://www.linuxchix.org
Re: [techtalk] Poor performance on home LAN
#if Laurel Fan > Well, that probably wasn't much help. You should probably talk to > someone who knows more about ethernet (linux-networking mailing list may > be a good place to ask if noone here can help) :) I agree talking to a linux-networking list is the best plan. The theories about it being the OS' networking layer or hardware (shared interrupts etc) seem like the more likely culprits to me too. Cheers, Rik -- 2. Implicate yourself in every interpretation. [EMAIL PROTECTED] http://www.linuxchix.org
Re: [techtalk] Setting up Dynamic DNS for ppp settings
At 07:28 PM 2/6/00 +0200, you wrote: >hi :) > >from the PPP-FAQ >( I didnt know what Dynamic DNS was but now i do - we all learn ) > > >12.6 My provider wants to use a dynamic DNS address which is not the same with >every connection. Yet, Linux wants just one address in the /etc/resolv.conf file. >This works with Microsoft Windows 95, but how do I make it work with Linux? > >Run a local \cache-only\ nameserver on your own Linux system. > >Instructions on running the nameserver are in the Named-HOWTO. The only file >which you need to obtain from the internet to enable the nameserver >is the named.boot file. This is available from the ftp site at ds.internic.net. >Then, use the address 127.1 as the address of the nameserver. > >You will need to create a named.boot file as well as a primary for a dummy domain >which will hold your localhost name and a primary domain for the >127 IP network. Again, instructions on how to do this are in the Named-HOWTO >file. > > >i hope this answers your question :) > > Thanks for the reply. Regards, Norma [EMAIL PROTECTED] http://www.linuxchix.org
Re: [techtalk] Poor performance on home LAN
> According to the ifconfig source, it's frame alignment error. I think > frame alignment error usually means that it gets a packet/frame that is > not properly aligned, IE not a multiple of 8 bits. That definitely > shouldn't be happening that often. Hmm. Maybe there's some sort of trouble with my firewall's network cards (cheap ISA ne2000 clones). > ...my intuition would be that a faulty PCI bus would > produce more in the "errors" field, because of corrupted packets. > > That pretty much leaves > the OS (what v. of the kernel? It's probably not the driver, if the > exact same thing has been happening with 3 different cards) or the > hardware (you aren't overclocking, are you? does the card share an > interrupt?)... Ack, can't believe I didn't mention what I'm running on the desktop: I've tried Red Hat 6.0 and 6.1, Slackware 7.0, and FreeBSD 3.4. All had the same troubles. (Does FreeBSD use the same driver code as Linux?) I've installed kernel 2.2.14 on each of the Linux distributions, again, no dice. I also grabbed the newest (stable?) version of the tulip driver (0.93 I think; RH ships with something that's over a year old), but to no avail. > Well, that probably wasn't much help. You should probably talk to > someone who knows more about ethernet (linux-networking mailing list may > be a good place to ask if noone here can help) :) Well, even though my problem is not yet solved, I learned a little, and gained a little reassurance that I don't need to call Tyan yet. BTW, I asked here because I haven't had much luck with this in comp.os.linux.networking (no offense to those that tried to help me there). ;) Thanks, Nathan [EMAIL PROTECTED] http://www.linuxchix.org
Re: [techtalk] Poor performance on home LAN
I seem to be in the habit of forgetting to include rather relevant info in my posts and replies... Laurel Fan: ... (you aren't overclocking, are you? does the card share an interrupt?)... Rik Hemsley: The theories about it being the OS' networking layer or hardware (shared interrupts etc) seem like the more likely culprits to me too. I am not overclocking (I have a healthy fear of electricity). And I have made sure there are no interrupt conflicts. Thanks for your help. [EMAIL PROTECTED] http://www.linuxchix.org
Re: [techtalk] Poor performance on home LAN
> I agree talking to a linux-networking list is the best plan. The theories > about it being the OS' networking layer or hardware (shared interrupts etc) > seem like the more likely culprits to me too. i'll bet a guilder it's a shared interrupt problem. my tulip ethernet card doesn't work if it shares an interrupt with something, but my old 3com 3c503's and 3c509's would and would either be real flaky or real slow. tim -- +--+ | Tim Pickering | Kapteyn Institute, Postbus 800 | | [EMAIL PROTECTED] | 9700 AV Groningen, The Netherlands | | http://www.astro.rug.nl/~tim/ |+31-50-363-6519 | +--+ Houdini escaping from New Jersey! Film at eleven. [EMAIL PROTECTED] http://www.linuxchix.org
Re: [techtalk] Poor performance on home LAN
Laurel Fan <[EMAIL PROTECTED]> wrote: > According to the ifconfig source, it's frame alignment error. I think > frame alignment error usually means that it gets a packet/frame that is > not properly aligned, IE not a multiple of 8 bits. That definitely > shouldn't be happening that often. If memory serves, a frame is the synchronization wrapper around the TCP/IP data packet. I would look to faulty network cards or network cards that inadvertently have the same addresses if the cards are Plug 'n' Pray, then it might actually be a motherboard or PCi bus error. Comer's networking book, btw, is a std reference for TCP/IP networking (haven't read it). Cheers! Robert [EMAIL PROTECTED] http://www.linuxchix.org
[techtalk] Linux Demo Day (free!) stuff
Hi all. Just so you know, Linuxcare is offering to provide free stuff for the upcoming Linux Demo Day (Feb 17th). They have tshirts, bootable business cards (expert-level Linux on a business-card sized CD...they're quite neat), plus white papers describing Open Source, etc. If you're interested in getting any of this stuff for your Linux Demo Day event, you should send your snail-mail address and phone number to [EMAIL PROTECTED] For more information about the Linux Demo Day project, see http://www.linuxdemo.org. - deb ps. pass this info on to other User Groups that might be having events as well :) -- [EMAIL PROTECTED] [EMAIL PROTECTED] http://www.linuxchix.org
