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HELP with a host ping script

Greetings,

I recently purchased Orion NPM and NCM to monitor network health and automate a number of tasks that I once had to perform manually. One of the task I am looking to setup a scheduled job that will perform the following task.

1. Access a node (the remote host is on a stub network which is only accessible from one node).

2. Perform a ping to the remote host from the node.

3. Read the response.

If success rate = 100 percent than exit

Else if wait 5 minutes and ping again

If success rate = 100 percent than exit

Else if shoot out an email.

So far the job that I have created is able to access the node, perform one ping, and email the results regardless if it was successful or not. Unfortunately, my scripting experience is very limited and any help would be appreciated.

Thanks.

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jswan

Is the node a Cisco router or an end station? I don't have any ideas if it's the latter, but if it's a router you could do this with IP SLA. You don't even need the Solarwinds IP SLA product to do this and monitor it, although that would certainly make it easier.

mrmatt

Thanks for the suggestion but with the Solarwinds IP SLA Monitor I can only monitor one node at a time. I was hoping to tailor a 'script' for future use with different equipment and nodes. To answer your question, the node is a Cisco router if that helps out in any way. I'm not too concerned with monitoring the status of the link, just whether or not if the interface on the other side of the link is up.

jswan

I'm not sure what you mean--it is fairly easy to template IP SLA operations and monitor them with NPM. For example:

ip sla monitor 1
type echo protocol ipIcmpEcho 1.2.3.4
ip sla monitor schedule 1 life forever start-time now

Then, in NPM create a UnDP to monitor and alert on the status of the SLA operation. The OIDs are in the CISCO-RTTMON-MIB.

An alternative to this would be to use Cisco EEM natively. I have never tried to implement this but I know you could combine IP SLA with object tracking, trap the object down event, and send an email based on that.

Very roughly, it would look something like this (I haven't tested):

ip sla monitor 1
type echo protocol ipIcmpEcho 1.2.3.4
ip sla monitor schedule 1 life forever start-time now

track 1 rtr 1 reachability
delay down 10 up 10

event manager applet PING_ALERT
event 1 track state down
action 1.0 mail server "your.smtpserver.com" to "me@you.com" from "router@foo.com" subject "ping failed"

You could probably get further help with it on Cisco's scripting forums.

mrmatt

Forgive me but I am still attempting to apply the first recommendation you listed and I am getting hung up on how/where I would apply

ip sla monitor 1
type echo protocol ipIcmpEcho 1.2.3.4
ip sla monitor schedule 1 life forever start-time now

Is this a monitor that I would apply on the router or in NPM? If it is a command subset that is applied to a router I don't believe that I have the correct IOS applied because I don't have any monitor options for IP SLA.

Again, thank you for your assistance.