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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

4410.0. "HUBwatch shows high collision rates" by BACHUS::ROELANDTS (Wa d'es ma da ve ne stuut) Wed May 14 1997 04:04

    
    
    Hello,
    
    Has anyone seen the following behaviour previously, or has someone an
    explanation as to what could cause this.
    
    A customer has two DECrepeaters 900 TM in a HUB900, when using HUBwatch
    v4.1.x from a DU system to monitor the ports he seess that almost all
    the ports report a high collision rate. Ports with an utilisation of 
    20 % report 13 % collisions but a port with 0.1 % utilisation reports
    40 % collisions, he then put a probe on a port and looked at the
    results ==> the probe reports 0% collisions, but HUBwatch reports 70% ?
    
    What can cause this, why is there such a difference ? Any idea ?
    
    Thank you for any info
    
    Regards,
          
             Guy ROELANDTS
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