The OID i am using is obtained from performing a SNMPWalk on the device and retreiving the following OID...
Name: Port Up/Down Test Type: Function Agent: Default Available: if(string_find(oid("126.96.36.199.188.8.131.52.1.8.14"),"up (1)")<0,1,-1) Error: if(string_find(oid("184.108.40.206.220.127.116.11.1.8.14"),"down (2)")>0,"","Interface 14 Down") Value: Leave empty if you dont want to graph it Unit: Leave empty if not graphing.
replace <port.number> with the port you want to monitor.
"up (1)" and "down (2)" are how the two states of the port are reported in the SNMPWalk, this might not be the case on the MT 250 switch, you will need to check the OID value on your MT 250 switch with the SNMPWalk.
Once you have the correct OID and state string you can add them into the probe and then it should tell you the state of the port.
To get it to alert you by email you will need to setup a notification specifically for the probe we have created.
Create a new Notification and set it up accordingly...
Now setup the notification for the probe. see below.
Name: Port up/down email Test Type: Email Server: SMTP server address (unless you already have a default one setup in the Dude) To: email@example.com Subject: can be left as is for testing Body: Leave as is for testing
That is pretty much it.. test it on a port you can pull up and down regularly to make sure the probe and notification are correct.
Hope that helps.