Thanks I read about that, but I am having a hard time forcing duplex, I don't remember the exact error it was giving me at the moment but from what I read it looks like a driver issue. ---------- Original Message ---------------------------------- From: "RobertH" <[EMAIL PROTECTED]> Reply-To: CentOS mailing list <[email protected]> Date: Tue, 9 Sep 2008 07:30:30 -0700
> >> >> I have a server with dual nic's running centos 5.2 1 nic connects to the >> cable modem, which has 15m d and 2m up, but speed tests barely come back >> at 5mb down including road runner's internal speed test. I hook up my >> laptop to the same modem, same port, using the same cable and I get 17mb >> down. I have ruled out iptables, nics (because same result on both >> nics), cables, cable modem(with a brighthouse rep) any suggestions would >> be greatly appreciated. Thanks. >> > >David, > >IME, it is typically (yet not always) a duplex and/or speed issue between >the NIC port and the switch or device it is talking too. > >man ethtool > >ethtool eth0 > >and check to see what speed and duplex are currently in use... > >if duplex and/or speed are off I typically hard code a *managed* switch and >the centos box on whatever ports as necessary by adding this line or one >similar to it > >ETHTOOL_OPTS="speed 100 duplex full autoneg off" > >To this and other interface files as necessary > >/etc/sysconfig/network-scripts/ifcfg-eth0 > >At this point a reboot will take care of it or if you don't want to reboot >now, Then I would make a little script called downup.sh > >ifdown eth0 >ifup eth0 > >and then I chmod 750 that script and then call it like this if from remote > >./downup.sh & > >So I don't lose connectivity... > >There is probably a more elegant command like way to do that... > >Be careful if remote box and YMMV > > - rh > > >_______________________________________________ >CentOS mailing list >[email protected] >http://lists.centos.org/mailman/listinfo/centos > ________________________________________________________________ Sent via the WebMail system at mail.dsli.com _______________________________________________ CentOS mailing list [email protected] http://lists.centos.org/mailman/listinfo/centos
