[mrtg] [FORGED] Re: Help graphing MAC address count from Cisco switch

[Steve Shipway]

>
>If I run this snmpwalk command:
>snmpwalk -v 2c -c public at 10 10.0.1.2 .1.3.6.1.2.1.17.4.3.1.1
>
>It returns info only for VLAN 10.
>
>Notice above that I'm using "<snmp_community>@<vlan_number>" followed
>by a space, then the SNMP host's IP address.  The problem is I can't
>seem to figure out how to turn this into a target line in MRTG where I
>can specify that I only want information for a certain VLAN.

If you want to put an "@" (or any of the other control characters) into your SNMP community, then use a backstroke escape:

Target[vlan-10-hosts]: CnTWaLK.1.3.6.1.2.1.17.4.3.1.1&CnTWaLK.1.3.6.1.2.1.17.4.3.1.1:public\@10 at 10.0.1.2:::::2

Presumably, your device has some special handling of an '@number' suffix to the community string to restrict reporting to a specific VLAN.

Steve

Steve Shipway
University of Auckland ITS
UNIX Systems Design Lead
s.shipway at auckland.ac.nz
Ph: +64 9 373 7599 ext 86487