Run SSH command on Cisco Router and record value

[ahahum]

I'm looking to see if it is possible to run a SSH command on a Cisco router and record that value in the database.

Specifically, I'm looking to run this command to determine which physical interface my VPN tunnel(s) are running on.

Here is the command:
sh run int t11 | inc tunnel source

In our environment the tunnel source will be 1 of 2 interfaces and they failover automatically. I'd like to have a way to trigger on this.

Any possibilities?

Thanks everyone!

[aib]

First of all, the Zabbix Item can be only number or line of text.
Then, Zabbix triggers works very well with numerical Items but has a weird problem with textual Items

So, if you can provide numerical value as a result of SSH script - it will be easy.
Item type: ssh agent
Executed script: sh run int t11 | inc tunnel source | (something to get only number 1 or number 2)

If it's not possible - you can start thinking about External Scripts.

[ahahum]

First of all, the Zabbix Item can be only number or line of text.
Then, Zabbix triggers works very well with numerical Items but has a weird problem with textual Items

So, if you can provide numerical value as a result of SSH script - it will be easy.
Item type: ssh agent
Executed script: sh run int t11 | inc tunnel source | (something to get only number 1 or number 2)

If it's not possible - you can start thinking about External Scripts.

Very nice, thanks for the tip - I forgot about that item type.

The retruned value will be a string, so I think it will be an easy match on the trigger. I'll report back my final solution in case anyone else is interested.

[ahahum]

I was getting the info I needed, but then I started seeing my poller alert for usage over 75% and my queue became very deep.

I disabled the new items and that didn't seem to resolve it. I was getting this logged in the zabbix_server.log file very often:
ssh_run() cannot close generic session channel: Unable to send EOF on channel

What does this mean? What can I do about this? Any ideas?

[garthvs]

I am seeing similar log entries on our setup:

3183:20140825:215748.322 ssh_run() cannot close generic session channel: Unable to send EOF on channel
3197:20140825:215748.322 ssh_run() cannot close generic session channel: Unable to send EOF on channel


I have just tried increasing the number of pollers and will try increasing the timeout if it still does not resolve it.

[ahahum]

I am seeing similar log entries on our setup:

3183:20140825:215748.322 ssh_run() cannot close generic session channel: Unable to send EOF on channel
3197:20140825:215748.322 ssh_run() cannot close generic session channel: Unable to send EOF on channel


I have just tried increasing the number of pollers and will try increasing the timeout if it still does not resolve it.

Let me know if that helps yours - I kinda abandoned this in my environment, but I'd still like to do it eventually as time permits.

[garthvs]

I increased the number of pollers and it had the same problem today. I will try increase the timeout for each check.