Nagios-users Digest, Vol 2, Issue 8

[Stanley.Hopcroft at Dest.gov.au]

Dear Folks,

For the benefit of the archives, 

>Dear Folks,
>
>Is it possible to use the standard plugin distro check_ping to 
>distinguish 
>a reachability failure brought about by sluggish transport and 
>one caused by a routing failure.
>

I think the best way to do this is with a plugin that returns either
OK or CRITICAL depending on whether the host is contactable (CRITICAL
also if the plugin times out).

This means that there is never any ambiguity between a congested
unresponsive
link and a host on an unreachable network.

One way of doing this is with an SNMP ping (eg check sysUpTime) to
a router on the subnet of interest.

(The actual application is determining if user subnets are reachable
when there is a routing protocol on each of the leaf [user subnet]
routers tunnelled through an MPLS transport. 

All sorts of wierd stuff can happen.
We use a routing protocol even on the single exit leaf nodes
because we cannot trust the provider [eg the only routing protocol they
provide is RIP ...]).

Yours sincerely.


-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642
_______________________________________________
Nagios-users mailing list
Nagios-users at lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/nagios-users
::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. 
::: Messages without supporting info will risk being sent to /dev/null