Re: [nv-l] Netview on Windows - netmon -a equivalent

2002-09-10 17:21:34
Subject: Re: [nv-l] Netview on Windows - netmon -a equivalent
From: James Shanks <jshanks AT us.ibm DOT com>
To: nv-l AT lists.tivoli DOT com
Date: Tue, 10 Sep 2002 17:21:34 -0400
Why change the command from "netmon -a xx" to "netmonaction -a xx"?
Well there can only be one netmon, and on UNIX, those short commands, like 
"netmon -a xx" and "trapd -T"  actually cause a new copy of 
/usr/OV/bin/netmon (or trapd) to run and issue a user signal (SIGUSR1 or 
SIGUSR2 depending on the implementation) that the "real" netmon's signal 
handler intercepts.  Works great on UNIX.  But NT does not support the use 
of user signals that UNIX does.   So the entire mechanism had to be 
changed or scrapped.  For trapd tracing it was scrapped.  For netmon it 
was provided by an entirely new progam, not part of base netmon at all, 
hence the new name. 

Lack of support for user signals is just one those annoying deliberate 
decisions made by Microsoft to distance themselves from other platforms a 
long time ago.  It makes porting difficult and that makes developers tend 
to start with a clean sheet of paper rather re-use what they have.  The 
result is that you get 2 products, one for NT and one for UNIX, and they 
don't have the same exact features. 

IMHO:  My view is that MS did this deliberately, since their first OS was 
what eventually became SCO UNIX, and they had to know what they were 
leaving out.  But it should not be news to anyone that MS wants us all to 
do it "their" way.
That's been their creed from the beginning, too.  :-)

James Shanks
Level 3 Support  for Tivoli NetView for UNIX and NT
Tivoli Software / IBM Software Group

Jane Curry <jane.curry AT skills-1st.co DOT uk>
09/10/2002 04:46 PM

        To:     pstroud AT bellsouth DOT net, NetView mailing list <nv-l AT 
lists.tivoli DOT com>
        Subject:        Re: [nv-l] Netview on Windows - netmon -a equivalent


Wow! Many thanks, indeed.  I think we should copy the list on this.  Great 
the functionality is there - but WHY change the command??

Paul Stroud wrote:

> Jane,
> I just sent this to you, because it is somewhat off topic. There is a 
> on NT called netmonaction that uses the same codes and netmon -a. This
> should allow you to dump your pinglist and all that good stuff!
> Paul Stroud

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