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Conference netcad::hub_mgnt

Title:DEChub/HUBwatch/PROBEwatch CONFERENCE
Notice:Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7
Moderator:NETCAD::COLELLADT
Created:Wed Nov 13 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:4455
Total number of notes:16761

592.0. "Power and Repeater probs with 900?" by JOCKEY::GREENR (Curiosity Killed The Cat) Thu Dec 30 1993 11:15

    I have a customer who recently purchased from me two DEChub 900
    configurations with which he has been suffering problems. 
    Each DEChub 900 consists of two PSU's, 4 DECrepeater 900 TM's and one
    DECbridge 90.
    Both configs suffer from unexplained port lockups on the 10base t
    ports. Unfortunately he does not have HUBwatch so we do not know why
    this might be happening at present. He has an SNMP MIB browser but is
    unable to get the HUB mibs from Gatekeeper on the internet as we seem
    to have our directory set up with no read access. I would like to loan
    him HUBwatch but he does not have any VMS machines to put it on, we are
    both waiting for the Dos version.
    
    The second problem he has suffered has only been with one of the hubs
    whilst he was adding repeaters. Basically he had two psu's installed
    and several repeater 900 TM's, the lcd said n+1. He added another
    repeater but it would not power up, yet the display still said n+1. He
    removed a psu and all repeaters powered up, he added the 2nd psu and
    again a repeater powered down, yet the display said n+1. The customer
    at this stage got confused over what actions he took however he
    believes that he only cleared the problem by reseating both psu's. 
    
    
    Are there any known repeater port lock up problems or psu seating
    problems ?
    
    regs,
    
    	Ross
T.RTitleUserPersonal
Name		DateLines
592.1More info please...NACAD::HERTZBERGHistory: Love it or Leave it!Thu Dec 30 1993 11:2515
    re: 10BaseT port lockup
    
    Can you get more information on this?
    
    What exactly does the customer mean by "lock up?" What do the port 
    status LEDs show for the locked up ports?  Is the lock up random
    across all the repeaters the customer has?  Have they tried swapping
    some wiring to see if it might be a problem with a particular station
    or type of station, or with the wiring?
    
    No, there are no known problems which match the information you have
    given so far.
    
    							 Marc
    						(Repeater Engineering)
592.2Problem getting MIBs?QUIVER::GALLAGHERThu Dec 30 1993 13:0140
>                                       He has an SNMP MIB browser but is
>    unable to get the HUB mibs from Gatekeeper on the internet as we seem
>    to have our directory set up with no read access. 

Is he trying to get the MIBs from /pub/DEC/hub900/mibs on gatekeeper.dec.com?

The older /private/mibs directory is protected in such a way that you can
not issue an "ls" command.  You must know the name of the file you're looking
for.  You must "get README" to find the file name(s) of the MIB(s) and then 
"get <filename>".

It's very important that customers be able to retrieve our MIBs.  Please let
me know why this customer is having problems.

(Instructions attached.)
						Thanks,
						-Shawn

==============================================================================
--  Digital offers Internet anonymous ftp access to DEChub900 MIBs from 
--  gatekeeper.dec.com.
--
--      1)  Use the Internet application "ftp" to connect to 
--          gatekeeper.dec.com (Internet address 16.1.0.2).
--      2)  Log in as user "anonymous".
--      3)  Use you electronic mail address as the password.
--      4)  Change directories to the /pub/DEC/hub900/mibs area using
--          "cd /pub/DEC/hub900/mibs".
--      5)  Use the "ascii" command to specify that you are 
--          retrieving ASCII test files.
--      6)  Get the README file using "get README".
--      7)  The README file explains how to retrieve this MIB.
--          It lists the latest version on the MIB.  It may
--          instruct you to "cd" to another directory where
--          you can "get" this MIB.
--      8)  When you are finished, use the "quit" command to log out.
--
--  Inquiries about the contents and use of this MIB may be sent to 
--  [email protected].
592.3Need the displayed "Available Power" numbers.QUIVER::GALLAGHERThu Dec 30 1993 13:3713
Ross,

As for the second problem (power supplies) it sounds like a broken/bent
pin on one of the power supplies, or a broken power supply connector.

If your customer is willing, try to have him repeat this, only this time
please have him note the "Available power" numbers displayed on the LCD 
at each stage.

Without these numbers, I can only guess at the problem.  (With these number,
maybe I can make a better guess  ;-)

					-Shawn