Unmanaged switch

[Paul Weaver]

How about a new command called "fakecheck", and apply to a "dumbswitch"
host with a 127.0.0.1 address. It would take a list of machines, and
check them all. If any of them are up, then the fakecheck would return
OK, otherwise it would return an error state. 

Something like
 #!/usr/bin/perl
 my $up = 0;
 my @hosts = qw/10.1.2.3 10.1.2.4 10.1.2.5 10.1.2.6/;
 foreach $addr (@hosts) {
 	if (pingCheck($addr)) {	$up++; }
 }
 if ($up > 0) {
	print "OK: Switch must be up\n";
	exit 0;
 } else {
	print "CRITICAL: Switch may be down\n";
	exit 2;
 }

(If you're good at programming you could probably get a list of children
out of the config -- complex configs take a long time to read in using
perl though)

Another way of monitoring would be to have it powered off an SNMP
enabled MDU which can tell the current being drawn. You could then
measure that.

--
Paul Weaver	
Systems Development Engineer
News Production Facilities, BBC News
Work:	020 822 58109
Room 1244  Television Centre,
Wood Lane, London, W12 7RJ



> -----Original Message-----
> From: Mike [mailto:mike at csits.net] 
> Sent: 20 October 2008 09:48
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] Unmanaged switch
> 
> 
> Folks,
> 
> What is the best way to include an unmanaged (read: IPless) 
> switch in Nagios?  Obviously I can't monitor it directly, but 
> I'd like Nagios to be aware of it in the network heirachy so 
> that it is aware that it is a possible poit of failure.  Can 
> I just define it as a host with no IP address and make it a 
> parent/client of the devices that attach to it or is there a 
> better way to approach this?
> 
> Mike.
> 
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