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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

706.0. "610's & 620's don't respond until reboot." by BRAT::BUKOWSKI () Tue Sep 15 1992 12:37

    
    	I haven't seen any other entries with this problem, so here it is.
    
    	I am not able to communicate to a 610 or 620 after removing the
    loopback connector and then reconnecting it (or plugging in a
    transceiver) to a port.  I have 20+ 610's and 20+ 620's that we are
    implementing in our sites.   When we cutover a segment to a port on
    a new bridge we are forced to interrupt service on the other ports of
    the new bridge by rebooting the bridge.  This seems to be the only way 
    we can get the bridges to respond to MCC again.   BTW:  Both bridges are
    running 1.2
    
    Regards,
    NEI-NH,
    MKO/ZKO Network Management,
    Michael Bukowski
T.RTitleUserPersonal
Name		DateLines
706.1LEVERS::ANILWed Sep 16 1992 14:169
    When you disconnect a port, it goes into testing mode for a while.
    If you look at the LEDs you would notice that the "forwarding"
    led on that port is flashing, indicating "broken" state.  After the
    device senses that the port is back on-line (by sending periodic
    loopback messages), it would move into the pre-forwarding state, then
    into the forwarding state.  Try waiting a couple of minutes after you
    pull the loopback and check if MCC works then.
    
    Anil
706.2db620 unsolicited resetVNABRW::PARGFRIEDERFri Oct 09 1992 13:1177

..and the problems still go on!

Let me explain our troubles with a customer in Austria.
The customer have a few DECbridges 620. All of the three
NI ports are used. One of them make troubles with many
Line errors (bad frame received,length errors, trans. error frames
and framing erros..)
But this should not be any problem for a bridge.
So what happend at the customer site is as follows:
	The bridge suddenly stopped forwarding on one
	port and went into test state (That is what
	i suggest, because the Port Led was blinking slowly
	and the bridge didn't forward anymore on that port)
	This condition lasted aprrox. 12 hours and then
	the bridge crashed and counted a unsolicited reset!!!!!

For a few weeks we have had installed the new SW v1.2
This have fixed some of our problems. Is this problem
above a new firmware problem or is it a hardware problem??

For engineers who can deal with a dump i attach the
diagnostic block from this bridge.



BRIDGE EPSV10_NS:.bg48b1
AT  5-OCT-1992 14:06:00

Examination of attributes shows:
                       Diagnostic Block = ( %X100C000100000030F8E000010000DEAD,
                                            %X0000250000184CF030DEAD0600000000,
                                            %X0000000030DEAD06000000FB00000004,
                                            %X003E82EA000004010000210000000000,
                                            %X00000000003E8A94003E88FC201856D8,
                                            %X003E8402003E89A2000004FC002017C4,
                                            %X00201770003DBE2CFEAA2AAA00000001,
                                            %X00000007000000070000000000000000,
                                            %X00000107003DC734001868BC00201800,
                                            %X0000006400000044FFFFFFFD62A9301B,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X000000000000000000000000E12A8887,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X000000000000000000000000E12A8887,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000,
                                            %X00000000000000000000000000000000 )




Any idea?????
Thanks for any help

Alf