[mrtg] Re: Active ports

[Peter Glanville]

> Is there an OID that we could use to determine how many ports are active 
on a switch?

MRTG includes a couple of specials.
Target[filename]: ifOperHack.x&ifAdminHack.x:public at ipaddress
where x is the port number

This gives operationally up/down and administered up/down (each in the 
form zero or one) for each port.
What I do is monitor each port seperately, and store data using RRD, and 
use the User-defined graph in Routers2.cgi to summarise it for me as a 
total per switch. This works for 24 port switches, but I'm not sure how 
far up you would be able to scale it.

Peter


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