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Wireless Networks Thread, HELP!!! EMERGENCY!!! What is happening to my Network??? in Technical; I only enable STP on the particular port if i have for example extended that port by plugging in another ...
  1. #16

    bossman's Avatar
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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    I only enable STP on the particular port if i have for example extended that port by plugging in another switch. Other than that i have portfast enabled on all other ports which drops about 20-30 secs on packet transfers through the switch.

  2. #17
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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    Right, I've found a cable plugged into two ports in a room where we recently took the computers out. Time to disconnect them I think! However, the switches are still flashing mad. Is there a method to bringing them back to normal, do I have to restart them all? I have tried restarting the one I think the offending cable was connected to, but that has had no effect.

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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    If a switch has defaulted to hub mode due to the ARP storm you will need to reboot it to restore it to normal operation.

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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    Well, sorted it out. There was another loop on a different switch in the Technology dept. Haven't found the actual loop yet as the ports aren't prperly labelled (I didn't do it) but I have disconnected that cable at the switch end and everything is back to normal. PHEW. Just a great big thanks to everyone who helped so quickly

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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    We had the exact same problem real pain tracing the loop back. We were thinking of putting on STP but turns out we cannot as we have channel bonding.

    Ross

  6. #21
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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    I have no issues with RSTP and teamed links. RSTP is faster than STP so I don't get any issues with the time it takes to get DHCP addresses either. All procurves use it when you turn STP on afaik.

  7. #22
    kerrymoralee9280
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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    Yeah, it happened to us 6 months ago. Network went nuts all of a sudden. Some kid had looped a network cable. We found the cable, and the culprit due to CCTV, but shortly after it happened again. NIGHTMARE.

    Anyhow, we enabled STP shortly after and not had the problem again.

  8. #23
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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    Weirdly that happened to me exactly 1 week ago. Only difference was the amount of traffic shut down everything and I couldn't ping at all.

    Computer had been removed in ICT room, cable plugged in two sockets. Restart switches and everything went back.

    When I tried to recreate it though it wouldn't do it. Is there something special that needs to happen?

  9. #24
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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    Quote Originally Posted by philjones2000
    Weirdly that happened to me exactly 1 week ago. Only difference was the amount of traffic shut down everything and I couldn't ping at all.

    Computer had been removed in ICT room, cable plugged in two sockets. Restart switches and everything went back.

    When I tried to recreate it though it wouldn't do it. Is there something special that needs to happen?
    We had this crossover problem for a week or so when the students found out it could slow everything down. We found is does take time for the network to come to a halt its not instant.

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    Re: HELP!!! EMERGENCY!!! What is happening to my Network???

    Quote Originally Posted by jumpinjamez
    We had this crossover problem for a week or so when the students found out it could slow everything down. We found is does take time for the network to come to a halt its not instant.
    Yeah, for us it started with one printer not working properly, then two then all of them. After 24 hours everything was slow and printing was crippled.



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