[mrtg] Help graphing MAC address count from Cisco switch
Alex van den Bogaerdt
alex at vandenbogaerdt.nl
Sat Mar 19 03:12:43 CET 2016
> I found this command online, and it returns an integer which
> represents the # of MAC addresses the switch knows about for the
> particular VLAN in question (VLAN 40 as shown below):
> snmpwalk -v 2c -c public at 30 10.0.1.2 .184.108.40.206.220.127.116.11.3.1.1 |wc -l
> The problem is that the SNMP call itself is returning a list of all of
> the MAC addresses, and that result is being piped through the wc
> command to turn that into an integer count value.
> I'm not sure how I'd go about creating a graph based on output from a
> command like this instead of a direct SNMP call. Can anyone help?
Surf to http://oss.oetiker.ch/mrtg/doc/mrtg-reference.en.html
Scroll down to 'External Monitoring Scripts'.
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