Yes, you will always have some collisions on a shared medium like Ethernet (obviously I'm not included a switched environment). The general guideline is that for IP you should have no more than 500 hosts on a flat network segment; IPX allows for 300; AppleTalk for 200; NetBIOS, 200; and a mix of protocols, 200. Again, this is just a guideline, which doesn't take some things into account, such as multicasting. I have not seen a guideline that specifies the percentage of collisions above which you should definitely segment. If anyone else has, please share.
- Don
-----Original Message-----
From: E Joseph [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 15, 2000 4:34 PM
To: [EMAIL PROTECTED]
Subject: question : ethernet collision rule of thumb...
I would first like to thank everyone. I have been a
member of this groups for several years now. I have
never actually posted a question, generally I just
absorb others questions. I realise there is no
concrete answer on this, BUT how many collision on a
shared media ethernet segment does it take before
having a problem?? I was just invovled in a situation
where we had a hub hanging off a hub connected to our
6509. The switchport error disabled and I had to
track the devices down. I beleive you will always see
some collisions in a shared ethernet environment???
At what collision rate should you get worried??? How
much does it take to shut a switch port down???
Thanks,
Ed
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