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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

48.0. "MCC field test version problems" by KALI::S_SHEN () Fri Feb 02 1990 13:59

Hi,

We install MCC station AM (UTC010) field test version on my VMS5.3 GPX. 
The first "TEST station <addr>,
via port xqa0:", MCC sends out the loopback command, the DEMMR responds 
correctly (we monitored on LAN analyzer), but MCC gives us "cannot 
communicate with target" right away after MCC gets the message. 

Second, "SHOW station <addr> all char, via port xqa0:", MCC sends out req 
ID command, the DEMMR responds back, but MCC crashes (return back to $) 
with the "improperly handled condition, image exit forced" message. 

Third, "show station <addr> all counters, via port <port>", MCC sends out 
correct V3 req counters message, but we do not support V3 req counters
. So it is OK.

Which version of MCC will support MOP version 4, IEEE 802 test,xid.
I heard MCC requires DNS support. Is there any user manual about DNS?
How to set up DNS? 

I follow the field test version MCC document, but the register command is
not working. It seems to me something wrong with the command format. 

If we have problems, we are the MCC field test site (register through Peter 
Savage), any body can help? I don't have QAR to report error so I have to 
use MCC notes file. 

sometimes I run MCC and got can not connect RAB, MCC initialization failure
, and I can't get MCC prompt< what is it?

Thanks!

Sam


T.RTitleUserPersonal
Name
DateLines
48.1Answers to *most* of your questionsCHRISB::BRIENENChristopher J. BrienenMon Feb 05 1990 15:0185
Hi Sam,

Below is a response to some (but not all) of the questions you asked.

>
>  MCC sends out the loopback command, the DEMMR responds
>  correctly (we monitored on LAN analyzer)
>
   There is a major problem with MCC-ETHERNET AM T0.1.0, documented as
   MCC_INT QAR#22 (also Note #41 in this notes conference). What it basically
   says is that, using the TEST directive through an ethernet port running
   DECnet, the BROADCAST ADDRESS (FF-FF-FF-FF-FF-FF) will get buried in the
   packet as the Return Address. This means two things:

   1. The TEST directive in IFT is basically useless
   2. The target Ethernet Station will get a loop packet with
      a bogus return address (broadcast)
   3. The packet that the Ethernet Station generates will not be
      "received" by MCC (ie: "cannot communicate with target")

   I am assuming that you didn't scrutinize the packets closely enough to
   catch this problem. [Note that the latest ENET AM we gave you does not
   have this problem.]

>
>  Second, "SHOW station <addr> all char, via port xqa0:", MCC sends out req
>  ID command, the DEMMR responds back, but MCC crashes (return back to $)  
>  with the "improperly handled condition, image exit forced" message.      
>
   We've tested/verified that the MCC-ETHERNET AM T0.1.0 code handles
   *correctly formatted* SYSID responses. Your problem points to a potential
   "lack of robustness" (ie: bug :-) in the code being used to parse the
   SYSID. Could you send us a dump of the SYSID packet you're sending out
   so that we can at least "desk check" it (even if the format is incorrect,
   this packet would help us to improve our code)?  [Note that the latest
   ENET AM we gave you allows this packet tracing to be done from the AM.]

>  
>  Third, "show station <addr> all counters, via port <port>", MCC sends out
>  correct V3 req counters message, but we do not support V3 req counters
>  . So it is OK.
>
   I'm glad SOMETHING is working right :-)

>
>  Which version of MCC will support MOP version 4, IEEE 802 test,xid.  
>
   The EFT version will support the above requests. [Note that the latest
   ENET AM we gave you supports this]

>
>  I follow the field test version MCC document, but the register command is
>  not working. It seems to me something wrong with the command format.
>
   The IFT (T0.1.0) Release Notes should state (he says, hoping that they
   actually do...) that REGISTER is not supported for Ethernet Station for
   the IFT version.
   [Note that the latest ENET AM we gave you does support REGISTER]

>
>  If we have problems, we are the MCC field test site (register through Peter
>  Savage), any body can help? I don't have QAR to report error so I have to
>  use MCC notes file.
>
   I would suggest that you:

   1. Address any MCC-ETHERNET AM questions on the NEW STUFF WE GAVE YOU to
      Wayne (as I believe you are already doing).
   2. Continue to use this Notes Conference to report any problems you find
      with T0.1.0.

   -----------------------------

   Please Note:
   Two of your questions remain unanswered:

   1. General DNS support questions
   2. "RAB, MCC initialization failure" problem.

   I trust that others in MCC (a MCC$DNS person and a MCC$Kernel person) will
   answer those questions for you (hint. hint.).

						Chris Brienen
						MCC-Ethernet based AMs.

48.2answers to commonly asked DNS questionsTOOK::NELSONTue Feb 06 1990 16:0220
The DNS problems are being worked off line with Sam Shen.

For anyone experiencing problems finding out how to connect to the 
corporate namespace,  the namespace nickname is DEC: and each major site 
has a nameserver that serves this namespace.

Ask your system manager for the name of the local nameserver.  If he/she 
does not know, have her/him find out.  HINT:  mail to GLUTNY::SYSTEM 
asking the name of the server associated with your site might result in
success. 

The documentation on the DNS nameserver is too voluminous to include in 
the MCC installation documentation.  

A complete introductory explanation is included in the VMS 5.3 New 
Features manual.

...kjn

48.3Where are you MCC system files?TOOK::GUERTINKeep It Stupid, SimpleTue Feb 06 1990 16:1821
    
    >>sometimes I run MCC and got can not connect RAB, MCC initialization failure
    >>, and I can't get MCC prompt< what is it?

    This error message has never come up before, at least that I know of. 
    I'm assuming that there are at least two error messages, the first, can
    only be an RMS error message, since there are no MCC error message
    which mention RABs (at least that I know of).  The second one on
    initialization failure appears to be coming from the
    Enrollment/Dispatcher portion of the Kernel, in which as you should
    have gotten something like
    
    %RMS-F-CCR, Cannot connect RAB
    ...
    %MCC-F-KERNINITF, MCC initialization failure
    
    If this is true, then it appears as though one or more of the MCC
    system files, has been corrupted or moved to another location.  Are you
    using DECNET or DFS to access the MCC system files?
    
    -Matt.