On Mon, Jun 03, 2002 at 10:46:23AM +1000, Howard Lowndes wrote: > I have a client's workstation on the bench at the moment which has a > complaint of being _very_ slow on their local ethernet. > > I just booted it up on my local network and it gave no symptoms, but I > have since rebooted it and am getting the described symptoms. > > An ssh into the box takes over 5 _minutes_ and a ping from the workstation > to the workbench server looks like: > > 64 bytes from 192.168.253.1: icmp_seq=0 ttl=255 time=996.294 msec > Warning: time of day goes back, taking countermeasures. > 64 bytes from 192.168.253.1: icmp_seq=1 ttl=255 time=503 usec > 64 bytes from 192.168.253.1: icmp_seq=2 ttl=255 time=1.000 sec > 64 bytes from 192.168.253.1: icmp_seq=3 ttl=255 time=316 usec > 64 bytes from 192.168.253.1: icmp_seq=4 ttl=255 time=1.000 sec > 64 bytes from 192.168.253.1: icmp_seq=5 ttl=255 time=434 usec
Yes I have seen similar ping times on different hardware. It was probably the network driver of the kernel I was using. I was using the default kernel on the RedHat 7.0 CDs and everything was fine. I updated to the first errata kernel (sorry can't remember the version numbers), and I got the above ping patterns. So I went back to the older kernel until the next errata kernel came out. That fixed the problem. My hardware was a Dell C600 laptop with a Xircom dual network/modem PCMCIA card. > The response is similar to one I have seen before where there was an IRQ > conflict but I don't think that is the case here. > > It's a VIA VT82C694T chipset on the mobo with a Davicom NIC chip. I have > had problems with VIA chipsets and Realtek NIC chips before, but that does > not apply here, I don't think. > > Has anyone seen this type of behaviour before, or better still, know a > cause and a fix? > > -- > Howard. > LANNet Computing Associates - Your Linux people > Contact detail at http://www.lannetlinux.com -- Norman Gaywood -- School of Mathematical and Computer Sciences University of New England, Armidale, NSW 2351, Australia [EMAIL PROTECTED] http://turing.une.edu.au/~norm Phone: +61 2 6773 2412 Fax: +61 2 6773 3312 -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
