Problem with Router status in notification.

[Jay R. Ashworth]

On Tue, May 20, 2008 at 02:16:23PM +0530, Michael Mukherji wrote:
>    thanks for your input.But the port was actually down.Bt i want notification
>    saying that port is down rather than snmp unable to collect data
> 
>    So is any extra parameter such as -s /-r is required in my check_snmp
>    command.

No.

As he noted, the problem is that the Cisco doesn't behave properly.  If
the port is down, the Cisco should *say that it is down*, rather than
simply ceasing to respond properly.

But that's what it does, and that's what you're seeing.

Marc, I gather provided a workaround, but that will likely obscure
those circumstances when the entire router drops dead.  Well, at least,
the historical logs will say the wrong thing.

No way to do better.

I concur: contact TAC; open a ticket. 

Cheers,
-- jra


>    <[1]hvdkooij at vanderkooij.org> wrote:
> 
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>    Michael Mukherji wrote:
>    | Hello list
>    |
>    | I am using nagios 3.0.I am having problem in getting notification for
>    | any port down in my router.I am using snmp to collect data.
>    |
>    | define service{
>    | use            generic-service    ; Inherit values from a template
>    | host_name        hongkong-gw1
>    | service_description    Port 10 descr adminstatus operstatus
>    | check_command        check_snmp! -C public -o
>    | ifDescr.14,ifAdminStatus.14,ifOperStatus.14
>    |
>    | this gives me output
>    |
>    | SNMP OK - Serial0/0 up(1) up(1) "FTIL1566 Connection to Londonpop-gw1
>    | Ser0/3"
>    |
>    | now when the  port goes down , i recieve messege saying SMNP data not
>    | recieved from host , problem unknown.but i want that it should give me
>    | messege that the port is down.
>    |
>    | is there anything i need to change in the above check_snmp command?
> 
>      No. You need to get another router. Cisco in their infinite wisdom will
>      give odd results on some interfaces if they are down. I have seen cases
>      where the interface is there if it's up but when it's down the interface
>      is gone as far as SNMP is concerned.
>      I suggest you open a supprt ticket with Cisco on this odd behaviour.
>      It's their problem and they need to fix it.
>      Hugo.
>      - --
>      [2]hvdkooij at vanderkooij.org               [3]http://hugo.vanderkooij.org/
>      PGP/GPG? Use: [4]http://hugo.vanderkooij.org/0x58F19981.asc
>             A: Yes.
>             >Q: Are you sure?
>             >>A: Because it reverses the logical flow of conversation.
>             >>>Q: Why is top posting frowned upon?
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> References
> 
>    1. mailto:hvdkooij at vanderkooij.org
>    2. mailto:hvdkooij at vanderkooij.org
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>    4. http://hugo.vanderkooij.org/0x58F19981.asc
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>    7. mailto:Nagios-users at lists.sourceforge.net
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-- 
Jay R. Ashworth                   Baylink                      jra at baylink.com
Designer                     The Things I Think                       RFC 2100
Ashworth & Associates     http://baylink.pitas.com                     '87 e24
St Petersburg FL USA      http://photo.imageinc.us             +1 727 647 1274

	     Those who cast the vote decide nothing.
	     Those who count the vote decide everything.
	       -- (Joseph Stalin)

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