Ganesh,

Thanks, I will try this utility.

-Dave

> -----Original Message-----
> From: Ganesh HS [mailto:[log in to unmask]]
> Sent: Monday, January 29, 2001 9:24 PM
> To: Dave Darnell
> Cc: [log in to unmask]
> Subject: Re: [HP3000-L] Monitor Network Activity
>
>
> If you  want to look at all  network  traffic  between  your
> 3K and any
> other  machine  *AND*  you  have a  Windows/UNIX  machine  on
> the  same
> physical  network  then you can use a tool  called
> windump/tcpdump  to
> capture  all the n/w  traffic.  Windump/tcpdump  runs  on
> Windows/UNIX
> machines.
>
> Windump      can      be      freely       downloaded
> from      -
> http://netgroup-serv.polito.it/windump/install/Default.htm.
>   Tcpdump
> for UNIX is also freely available for various
> implementations.  It just
> takes 10 minutes to download and configure windump.
>
> windump/tcpdump  can take a complex expression as an argument
> to filter
> the network traffic.  If 3k1 and 3k2 are names of two
> machines, then to
> see all the traffic that flows between 3k1 and 3k2 issue the command -
>
> windump host 3k1 and 3k2
>
> You will get output which looks like -
>
> 09:27:01.210770 3k1.xx.yy.com.2828 > 3k2.xx.yy.com.6000: P
> 626045261:626045281(20) ack 1399129 win 32768 (DF)
> 09:27:01.368015 3k2.xx.yy.com.6000 > 3k1.xx.yy.com.2828: .
> ack 20 win 8500 (DF)
> 09:27:01.461149 3k1.xx.yy.com.2828 > 3k2.xx.yy.com.6000: P
> 20:40(20) ack 1 win 32768 (DF)
> 09:27:01.568299 3k2.xx.yy.com.6000 > 3k1.xx.yy.com.2828: .
> ack 40 win 8480 (DF)
> 09:27:01.719852 3k1.xx.yy.com.2828 > 3k2.xx.yy.com.6000: P
> 40:60(20) ack 1 win 32768 (DF)
> 09:27:01.868738 3k2.xx.yy.com.6000 > 3k1.xx.yy.com.2828: .
> ack 60 win 8460 (DF)
> 09:27:01.970297 3k1.xx.yy.com.2828 > 3k2.xx.yy.com.6000: P
> 60:80(20) ack 1 win 32768 (DF)
> 09:27:02.169174 3k2.xx.yy.com.6000 > 3k1.xx.yy.com.2828: .
> ack 80 win 8440 (DF)
> 09:27:02.220738 3k1.xx.yy.com.2828 > 3k2.xx.yy.com.6000: P
> 80:100(20) ack 1 win 32768 (DF)
> 09:27:02.369458 3k2.xx.yy.com.6000 > 3k1.xx.yy.com.2828: .
> ack 100 win 8420 (DF)
> 09:27:02.471155 3k1.xx.yy.com.2828 > 3k2.xx.yy.com.6000: P
> 100:120(20) ack 1 win 32768 (DF)
>
> Similarly,  if you would like to capture  all the  traffic
> that  flows
> to/from say machine 3k1 then you need to issue the command -
>
> windump host 3k1
>
> I find this tool very useful.  It is like a simple protocol analyzer.
>
> Ganesh HS,
> CSY Networking Lab.
>
> > Hello List,
> >
> > What can I do on the 3000 to monitor the amount of network
> activity in
> > near-real time?
> >
> > I am looking at a client/server process where both sides
> were developed
> > in-house.  We have assessed al other performance criteria
> except the traffic
> > between the client and the server.
> >
> > Short of external devices like protocol analyzers, what can
> I run on the 3K
> > to get an idea of the relative impact to networking.
> >
> > Are there specific processes I can monitor with Glance/iX to get the
> > relative level of activity?
> >
> > Thanks,
> >
> > Dave
> >
>
>
> --
>   Regards,
>   Ganesh HS.
>
> ______________________________________________________________
> _________________
> Ganesh HS               | E-mail    : [log in to unmask]
> HP-(ISO) Pvt. Ltd.,     |
> 29, Cunningham Road       | Phone     : External : (408) 447 0375
> India                     | Fax
>                         | Voice Mail: 408-447-0375
>
> Disclaimer: Comments are my own, not HP's
> ______________________________________________________________
> _________________
>