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From: robel2@MYTHOS.UCS.INDIANA.EDU (Allen Robel)
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re: Novice 10BaseT questions.
Message-ID: <9012051429.aa24581@louie.udel.edu>
Date: 5 Dec 90 19:32:04 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 63

>All in all, I am not impressed by the David Systems that we have 

>purchased, our Ungermannn Bass equipment was more flexible and has  

>better management (once the bugs were worked out, we were a beta 

>test site) software, but David Systems promises more in the near 

>future.

As someone who has been working directly with DAVID System's 

network management, I would like to give my impressions of their
management capabilities.  DAVID, like many other hub vendors, has 

implemented SNMP based management in their hubs.  I have been
using the new Nyser code to query the DAVID MIB and have found
no problems with either their MIB I implementation or their
vendor-specific MIB.  Their specific MIB includes a very rich set
of port-level, module-level and chassis-level information and 

control (through the SNMP SET mechanism).  This information
includes things that we could never get with our UB hubs like
out of spec frequencies, late collisions, normal collisions, 

jabbers, start frame delimiter errors, frame check, runts, 

giants, etc.  The hubs also send traps reliably and appropriately 

and offers the ability to send its traps to up to 10 other hosts.

Trap types include:

1) Authentication
2) Cold Start
3) Module Failure
4) Module Recovery
5) Module Power Supply Failure
6) Port Partition/Partitioned
7) Port Jabbering

I've implemented a shell script to query the hubs and send mail
to selected personnel should a hub respond with a value that is 

out of an acceptable range for a variable.  I never would have been 

able to do this using the proprietary management that UB offered.  

UB has announced SNMP capability and I'm sure that they will make 

good on this so I'm not knocking UB; I'm simply defending DAVID 

Systems as I feel that their management capabilities and their
product are much better than what was implied by Mr. Mirza.

regards,

Allen Robel                            robel2@mythos.ucs.indiana.edu 

University Computing Services          ROBELR@IUJADE.BITNET 

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