?
Solved

eth0 startup options

Posted on 2000-03-30
11
Medium Priority
?
401 Views
Last Modified: 2013-12-16
How do I supply a command-line option to the startup network scripts for the eth0 interface?  What I'm trying to do it have eth0 come up with "txqueuelen=35" instead of the default setting of 100.

Any ideas?
0
Comment
Question by:pogga
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
11 Comments
 
LVL 4

Expert Comment

by:kiffney
ID: 2669967
You should be able to just add a line  to /etc/conf.modules saying

options eth0 txqueuelen=35
0
 
LVL 1

Author Comment

by:pogga
ID: 2683217
That didn't work.  In fact that screws things up!!!
0
 
LVL 4

Expert Comment

by:kiffney
ID: 2686413
The way you figure out these things is by reporting the EXACT error message you saw when it 'didn't work', what it screws up and what happens that tells you it screws up.  You might also chip in with what ethernet driver you are  using and how you were doing it manually.  
0
Get proactive database performance tuning online

At Percona’s web store you can order full Percona Database Performance Audit in minutes. Find out the health of your database, and how to improve it. Pay online with a credit card. Improve your database performance now!

 
LVL 1

Author Comment

by:pogga
ID: 2686625
I screws up because the eth0 card comes up with txqueuelen=100 (default) and I've noticed that I have no network access what-so-ever. I check my routing table and its as it should be. I checked (using ifconfig) eth0 and everything appears ok.

Any other ideas I should try?
0
 
LVL 4

Expert Comment

by:kiffney
ID: 2688319
You still didn't mention which ethernet driver you use.  If you installed the kernel source, you could look in /usr/src/linux/Documentation/network, find the type of driver you're using, and check the .txt file to see if that's a valid option - that, or the source for the driver in /usr/src/linux/drivers/net.  What driver is being loaded?  'lsmod' will tell you if it's a module.  Also post the contents of ifconfig with and without th option - also look through the output of 'dmesg' for info  about the ethernet card and any messages that appear when it's loaded.
0
 
LVL 1

Expert Comment

by:Sokka
ID: 2695924
When U install linux it will ask you for option for any parameters to pass. Eighther u can give there

or


U can give it in LILO boot
0
 
LVL 1

Author Comment

by:pogga
ID: 2699526
I may be wrong but lilo boot is not a place I'm gonna start throwing parameters at!
This is simply the network card I want to tweak, can I do this at the lilo prompt? (Apologies if I sound sceptical.)

Yes, you're correct. I could (and should) have entered the eth0 options at install time.  However, this is a development server and I cant just re-install 'cos I wanna tweak the network card.

Keep the help coming ...
0
 
LVL 1

Author Comment

by:pogga
ID: 2699530
Adjusted points from 100 to 150
0
 
LVL 4

Expert Comment

by:kiffney
ID: 2714533
OK, I finally understand your question.  I was thinking the txqueulen parameter was some driver parameter that you set with the module that drives your network card, when in fact it's set by 'ifconfig'.  All you need to do then (if you're using a  RedHat-like linux) is edit /etc/rc.d/rc.local and at the end of that file add the line

ifconfig eth0 txqueulen 35

since by that time the eth0 device will be up.   There is an if-up script in /sbin on redhat systems that you would think could handle this, but it looks to me like it won't.  
0
 

Accepted Solution

by:
roundst earned 450 total points
ID: 2756515
could you not put the options into the appropriate box in 'kernelcfg'?
0
 
LVL 1

Author Comment

by:pogga
ID: 2758467
That looks like the place to put it.
Thanks for the help everyone.
0

Featured Post

NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Using 'screen' for session sharing, The Simple Edition Step 1: user starts session with command: screen Step 2: other user (logged in with same user account) connects with command: screen -x Done. Both users are connected to the same CLI sessio…
Introduction We as admins face situation where we need to redirect websites to another. This may be required as a part of an upgrade keeping the old URL but website should be served from new URL. This document would brief you on different ways ca…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…
Learn how to find files with the shell using the find and locate commands. Use locate to find a needle in a haystack.: With locate, check if the file still exists.: Use find to get the actual location of the file.:
Suggested Courses
Course of the Month15 days, 1 hour left to enroll

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question