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Conference 7.286::fddi

Title:FDDI - The Next Generation
Moderator:NETCAD::STEFANI
Created:Thu Apr 27 1989
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2259
Total number of notes:8590

1875.0. "Causes of Ring Init?" by HGRNCC::FARADAYCHONG () Thu Nov 23 1995 09:43

    When dual-homed links fails over from active link to standby link,
    would ring initialization occur?
    
    Is there a list of causes that trigger ring init (for better
    understanding when ring init occurs)?
    
    Faraday
T.RTitleUserPersonal
Name
DateLines
1875.1some answersCGOS01::DMARLOWEHave you been HUBbed lately?Thu Nov 23 1995 20:4712
    Yes. 
    
    Anything that breaks the ring will cause beaconing on the ring.  Some,
    but not limited to, conditions that can cause an init are:
    
    - systems powering up or down
    - insertion or removal of a fiber or UTP
    - token timer expiration
    - FDDI chip set reseting under heavy loads, ie. AT&T chip in SBus NIC's
    - primary ring failure and restoration back to primary ring
    
    dave
1875.2exitNETCAD::B_CRONINWed Dec 06 1995 19:127
    Minor correction -
    
    Beaconing will not occur in a properly functioning ring. Claims will
    occur, but if you get as far as a baecon something isn't right. 
    
    Its probably a typo.