Re: [tkined] IP monitor questions.

Peter Polkinghorne (Peter.Polkinghorne@brunel.ac.uk)
Mon, 29 Sep 1997 14:09:10 +0100

> Some questions concerning the IP monitor:-
>
> 1). I am monitoring approximately 100 nodes with the flash and write options
> enabled. When restarting the map with the appropriate IP monitor statements,
> the map initializes with the "IP Monitor" menue option for a few seconds and
> then disappears and no error messages are produced. How can I investigate the
> cause of the monitor jobs terminating?
>
> 2). We are monitoring a number of nodes which for one reason or another may be
> down for a few hours. We would like to acknowledge the event to stop the node
> flashing and writing to the IP monitor report until the state changes. Can this
> be done easily?
>
> 3). We seemed to get a rather sluggish performance with this number of nodes
> when the IP monitor flashes problems up. Is there a performance problem when
> flashing icons? Can the flashing algorithm be modified to reduce the overhead
> on the system?
>
> Many thanks in anticipation of your help,
>
> Terry Raggett

I have produced a variant of IP Monitor that does basicly what you want:

Here follows a previous announcement:

Peter.Polkinghorne@brunel.ac.uk said:
> I have produced a variation on the ip_monitor.tcl that came with
> scotty-2.1.4 (for some reason I have not yet installed 2.1.5):
>
> ftp://ftp.brunel.ac.uk/cc/peter/bru_ip_monitor.tcl.gz
>
> The changes are as follows:
>
> a) add a MoJoChAction() procedure - that can optionally:
> i) change color
> ii) write to log window
> iii) syslog
>
> b) change "Check Reachability" to take advantage of the
> MoJoChAction() procedure. Also eliminated some redundant code - in
> particular the color change and flash items.
>
> c) add "Check DNS Reachability" - this uses DNS to expand a hostname
> (name attribute) to list of addresses of interfaces and checks
> reachability of all of these.
>
> The rationale for these were to enable checking of all interfaces and
> to do the logging in a delta fashion, rather than say every
> interation X is down.

I have fixed the colour save bug. However it does not work in all
circumstances but I find it useful.

Another point - although tkined comes with a useful set of scripts, it not too
hard to produce site specific variations of extant ones or even new ones.

-- 
-----------------------------------------------------------------------------
| Peter Polkinghorne, Computer Centre, Brunel University, Uxbridge, UB8 3PH,|
| Peter.Polkinghorne@brunel.ac.uk   +44 1895 274000 x2561       UK          |
-----------------------------------------------------------------------------





--
!! This message is brought to you via the `tkined & scotty' mailing list.
!! Please do not reply to this message to unsubscribe. To subscribe or
!! unsubscribe, send a mail message to <tkined-request@ibr.cs.tu-bs.de>.
!! See http://wwwsnmp.cs.utwente.nl/~schoenw/scotty/ for more information.