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Conference azur::mcc

Title:DECmcc user notes file. Does not replace IPMT.
Notice:Use IPMT for problems. Newsletter location in note 6187
Moderator:TAEC::BEROUD
Created:Mon Aug 21 1989
Last Modified:Wed Jun 04 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:6497
Total number of notes:27359

5073.0. "IBM 8209 as Ethernet station problem ?" by FILTON::BARKER_E (Ummm...) Mon May 17 1993 12:40

    Hi.
    
    	This is an interesting one. I've been setting up a DECmcc
    workstation on a site where the main backbone is a token ring with IBM
    8209 bridges connecting the various ethernet segments via the token
    ring backbone. This all works fine with the various DECnet and SNMP
    nodes across the site. However it doesn't give management capability of
    the 8209's which would be nice. I suggested that as they are on the
    ethernet we could at least register them as ethernet stations and test
    when necessary etc.  We got the ethernet address and attempted to
    register the 8209 and..... it crashed !
    
    	It did take a while to trace the fact that this was happening due
    to the registration via DECmcc. Can anyone shed any light/guess as to
    why this could happen ? I tried the various options under the functions
    supported field and it still crashed so I'm at the stage where I can
    only blame the IBM box for lack of capability.
    
    	Thanks for any help,
    
    		Euan
    
    >>>Cross-posted in Token Ring file>>>>>
T.RTitleUserPersonal
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5073.1problem solvedSMAC10::BARKER_EUmmm...Tue May 18 1993 13:2044
    Answer found, I missed one of the options :- details follow :-
    
    Subject: RE:  IBM 8209 and DECmcc
    
    Greetings,
    
     My guess is that the IBM 8209 Agent has a problem.
    
     Can you (if you haven't done this already) issue the TEST STATION
    <address>
    command (with 8209 *NOT* registered in MCC) from the FCL UI, with
    FUNCTION
    SUPPORTED = IEEE802_Only, to see whether THIS command crashes the
    bridge?
    
     It's the simplest standard request (IEEE802.2 TEST) that MCC can make
    to
    an entity.
    
     If it crashes with the above request, IBM has a problem!
    
                                                    Chris
                                                                 
    
    ----------------------------------
    
    Chris,
    
            We must have missed that specific option on Friday as it works,
    and
        they have managed to register the bridge as well. Thanks for the
        advice, and sorry to trouble you for no real reason. I think we
    skipped
        IEEE802.2 as the 8209 is meant to have an algorithm that picks up
        whether each ethernet address on the network is talking Ethernet V2
    or
        IEEE 802.2. As we are running DECnet Phase IV on the mcc system I
        assumed only Enet V2 would be responded to by the 8209, wrongly as
    it
        happens !
    
            Thanks again,
    
                Euan