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Thread: CAT6 Straight PC to PC speed issues

  1. #1

    CAT6 Straight PC to PC speed issues


    Have just set up a machine to machine network using CAT6 Straight through.

    Machine 1:PCI : Netgear GA 311 NAR....
    Machine 2:On board Marvell Yukon 88E8001/8003/8010

    Both are gigabit cards.

    Now to test I moved a 2.1Gb folder from M2 to M1

    Test 1 with different 10/100 cards going through router modem

    Test 2 with cards specified above

    test 1 :101 secs
    test 2 : 230 Secs

    So going from 10/100 to the gigabit only increased my speed 2.3 fold.

    How can I improve this result? Is it best to use a switch?

    Currently I only have Ip address and subnet mask set on both machine as I am not to sure what I should put or how I should calculate the default gateway or the Pri + Sec DNS Server.

    Also wondering what I can use to test the speed in bits that I'm getting.

    I hope somebody can shed some light on this.

    Thanks in advance

  2. #2
    Security Specialist greEd's Avatar
    Join Date
    May 2001
    How are you connecting Machine -> Machine with straight through cable?
    "I'm doing a (free) operating system (just a hobby, won't be big and professional...) for AT clones... It's not portable and it probably [won't ever] support anything other than AT hard disks, as thats all I have :-(." --Posted on Usenet August 1991 by Linus Trovalds
    curiosity builds security | dd if=/dev/zero of=/dev/hda bs=512 count=100

  3. #3

    Yes CAT 6 straight through PC to PC running win XP pro on both

  4. #4
    Anyone have any ideas????

  5. #5
    Advanced Member
    Join Date
    Dec 2001
    Well it should be a crossover cable for a PC to PC connection. But it seems that your NICs (or at least one of them) autosensed and corrected.

    I don't think you can get as good results using a direct PC to PC connection. If you really want the best results it would probably be best to buy a gigabit switch.

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