Cacti is a great graphing tool for monitoring your network traffic, and especially for capacity planning. However what if the links you utilise are greater than 100mbit? Cacti by default will only graph up to 120mbits with the graphs since they are only 32bit graph counters. In order to graph more than 120mbits of bandwidth 64bit counters are required. I have included as part of this post a XML import file for cacti which allows you to use 64bit counters but with Total Bandwidth as well recorded from the graphs. Thanks to a friend of mine (Mr DS) for finding this on the cacti forums. (http://forums.cacti.net/about4160-0-asc-0.html)
Download: 64bit Counter Cacti Template with Total Bandwidth
Sample Graph of 1Gigabit link with 64bit Counter Total Bw SNMP v2 probe:
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