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check-cisco.pl plugin
Posted: Tue Jan 07, 2014 2:27 pm
by vvz
HI!
I'm not sure this is a right place to ask about, but if anybody tried check-cisco.pl plugin, could you explain how it works with fans and power supply ckecks?
In my case if i check interface status or CPU load it works just perfectly.
But if I'm trying to check Fans or Power supply I got strange results.
Let's say I have Cisco Catalyst switch connected to my PC and run
./check-cisco.pl -H 192.168.1.205 -C public -t fan
I got reply
Fans: OK - 1 Fans are running all good | total=0 err=0
but if my switch even is not powered and I throw the same command I got reply
Fans: OK - 0 Fans are running all good | total=0 err=0
As you can see it defines that there is no Fans (which is obviously right , but they are running good!
I wasn't able to find out plugin's owner email, so somebody might have the same problem?
What was solution?
Any other info you need just let me know
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 2:33 pm
by slansing
I don't see this plugin on our exchange, where did you find it? Can you provide a link? You will need to make an alteration to the plugin script that will change the text output if no fans are detected to be running.
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 2:41 pm
by vvz
it is
http://exchange.nagios.org/directory/Pl ... st/details
but code itself is placed on github
Yes, I've tried to change the code, but my perl experience is not enough
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 2:48 pm
by vvz
if you could recommend me any other plugins to check fans and power supply status for catalyst, it would be enough for me
but I need plugins to inform (warning and critical) status how many fans (ps) down and (or) how many are up.
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 3:45 pm
by slansing
Initially you are going to want to look at lines 345 and 348-350:
Code: Select all
345- $err_msg = "all good";
348- if($total_err <= $warn) {
349- $stat = 0;
350- $msg = "Fans: OK - $sum Fans are running $err_msg";
You can change the $err_msg value during the above else value which will populate $err_msg in line 350 if there is nothing causing a warning, or critical state return.
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 3:51 pm
by sreinhardt
Actually, I do not agree with slansing, he is correct that this is where your output is coming from. However this is perfectly acceptable for when fan states are ok, but it needs a check for no fans found, and obviously does not seem to be checking correctly if the snmp session was not created properly and recieved no information. Let me see what I can do about a quick fix for you.
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 4:05 pm
by sreinhardt
Try changing lines 327-367 to this:
Code: Select all
} elsif($check_type eq "fan") {
my $R_tbl = $snmp_session->get_table($S_fan_name);
my $total_err = 0;
my $err_msg;
my $sum = 0;
foreach my $oid ( keys %$R_tbl) {
$sum = $sum + 1;
my $name = "$$R_tbl{$oid}";
my $id = "$oid";
$id =~ s/$S_fan_name\.//;
my $R_stat = $snmp_session->get_request(-varbindlist => ["$S_fan_stat.$id"]);
my $stat = $R_stat->{"$S_fan_stat.$id"};
if($stat != 1) {
$total_err = $total_err + 1;
$err_msg = "$err_msg $name -> $phy_dev_status{$stat}";
}
}
if ($sum == 0) {
$err_msg = "Fans: Unknown, no fans were detected.";
$stat = 3;
}
else {
if($total_err != 0) {
$err_msg = ", $err_msg have an error";
} else {
$err_msg = "all good";
}
if($total_err <= $warn) {
$stat = 0;
$msg = "Fans: OK - $sum Fans are running $err_msg";
} elsif($total_err > $warn and $total_err < $crit) {
$stat = 1;
$msg = "Fans: Warn - $sum Fans are running $err_msg";
} elsif($total_err >= $crit) {
$stat = 2;
$msg = "Fans: Crit - $sum Fans are running $err_msg";
}
}
It will make any time that 0 fans are detected an unknown status, and report an message saying that fans were not detected. I would highly suggest testing this via the cli before full implementation in nagios.
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 4:33 pm
by vvz
I' ve tried and got this reply
| total=0 err=0
nothing before " | total=0 err=0 "
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 4:37 pm
by slansing
Can you upload a new attachment of your script as you have edited it?
Re: check-cisco.pl plugin
Posted: Tue Jan 07, 2014 4:40 pm
by vvz
Yes, it is attached