[mrtg] Re: Number of ports up.

Peter Glanville peter_glanville at cuk.canon.co.uk
Thu May 6 09:36:56 MEST 2004

> I was wondering if anyone monitors how many ports on a switch are 
functioning?  If so, how do you do it?  I took at the MIBS and didn't find 
a OID for this.  Most of my switches are Cisco 3500 or 3500xl.
MRTG supports the imaginary ifOperHack and ifAdminHack. (Operationally 
Up/Down and Administered Up/Down)
I use at Target of 
ifOperHack.[interface#]&ifAdminHack.[interface#]:public at IPaddress for each 
This shows 0 or 1 for each.
Using the UserDefinedGraph option of Routers2.cgi, I can then add these 
all up, and graph the number of ports for each switch, as well as checking 
the status of each port.


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