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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

1593.0. "DEFPA fail over time" by TKOV51::TAKIGAWA (Naoki Takigawa/ Digital Japan) Fri Feb 17 1995 08:38

Hi,

My customer is thinking FDDI dual homing configuration. 
And he is worrying about fail over time.

How long does it take for DEFPA-DA fail over upon a cable failure?

thanks,
naoki
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1593.1NETCAD::STEFANIWelcome to the Revolution!Fri Feb 17 1995 10:215
>>How long does it take for DEFPA-DA fail over upon a cable failure?
    
    Not long enough to cause any protocols to timeout - under two seconds.
    
    /l
1593.2NETCAD::B_CRONINFri Feb 17 1995 18:014
    Larry is right, its under 2 seconds. However, if there was n error 
    detected by the Link confidence test as the A-M port becomes active, 
    then it might take another 6 seconds. This is not the usual case, 
    and 2 seconds is a good answer for the typical failover time. 
1593.3Thank you.TKOV51::TAKIGAWANaoki Takigawa/ Digital JapanSat Feb 18 1995 02:570