Re: Network Connection Slooooooow

From: Doug McLaren (dougmc_at_frenzy.com)
Date: 12/18/04

  • Next message: Jack Malmostoso: "Re: live cd" 
    Date: Sat, 18 Dec 2004 05:17:28 GMT

    In article <cpv91e$1scj$1@newsfeed.norlight.net>,
    Jeffrae <jeffrae@alynk.com> wrote:

    | > | machine is using is set for half duplex.. Our switches are full..
    | > | I am going to change this and see if it makes much of a difference..
    | > | Do you think have them mixed would have caused a very slow
    | > | connection?
    | >
    | > Yes, I've seen that cause extremely slow ethernet connections, over
    | > and over and over. Rather than 10 MB/s, you'll see 50 KB/s transfer
    | > rates.
    ...
    | The weird thing is that My VETH (Virtual Ethernet) appears to be slowd down
    | from this too even though it is 1G Full Duplex Both Ends. (AS400 - Linux)

    That's exactly how it happens -- the computer's network cards are set
    at full duplex, but the switch or hub is set to half duplex (often
    because it cannot do full duplex.) Or vice versa.

    The fix is to force the computers to do half duplex. Even if you
    think the hub can do full duplex, try forcing the computers to half
    duplex.

    I don't know how the virtual ethernet fits into all this ... 

    -- 
Doug McLaren, dougmc@frenzy.com                    Avoid reality at all costs.
  • Next message: Jack Malmostoso: "Re: live cd"

    Relevant Pages

    • Re: Interesting networking conundrum
      ... DSL connection always seemed a little sluggish. ... (After ruling out the Ethernet cable, ... If the devices default to different speeds, they won't be able to talk ... If the devices default to the same speed but different duplex settings, ...
      (comp.sys.mac.system)
    • Re: Duplex
      ... You also have to make sure that if you are hooked up to a router that you have the network connection set all the way through from end to end nailed at 100MB. ... I set the NMMGR settings to turn off auto-negotiate and turn on full duplex. ... Transmits 11119 Receives unicast 7538 ... To join/leave the list, search archives, change list settings, * ...
      (comp.sys.hp.mpe)
    • Re: Network transfer speeds
      ... I use full duplex all the time and it rocks. ... >> and I need to transfer approx 6gb of data from my laptop ... Using my broadband connection I am getting ...
      (microsoft.public.windowsxp.network_web)
    • Re: Forcing 100mb-FD on NIC
      ... >mb full duplex connection but cannot seem to get it to work. ... router is set to auto-negotiate and the nic is forced to full, ... If the cards can't negotiate ...
      (alt.os.linux.redhat)
    • Re: added new client but....
      ... reset it to 100 MB Full Duplex (assuming ... I have an SBS server. ... I just bought a new, much faster than before, client computer to ... I'm directly connected to the same router in the same connection as ...
      (microsoft.public.windows.server.sbs)