NAV maintains traffic statistics for all “intersections” in the network; i.e. all router and switch ports. Octet, packet and error counters are collected, along with CPU and memory statistics (and more). NAV also gathers statistics on servers, i.e. disk usage, memory, load etc.
Please note that all statistics are stored using RRDTool and Cricket is used as the main statistics collector. RRDTool and Cricket are not a part of NAV, they are third party GPL software. NAV will however auto generate the Cricket configuration tree based on data from the NAV topology database (see The Cricket Configuration Builder).
The Cricket collection that NAV does can, with a little knowledge, be extended to cover statistics of your particular interest.
See How To Extend Cricket for how to do this.
The statistics tool from the tool box navigates to a menu where you can move on to the Cricket statistics or you can use the “Ranked statistics tool” explained in the following.
Ranked statistics gathers all data for a specific data source, orders it and presents you with the ranked list.
The webpage is your way of getting ranked statistics of the data Cricket gathers. The interface should be easy to understand, but lets do a quick introduction:
You may add more views if you want to. See “The config file” for more information.
Sortedstats has a configfile called sortedStats.conf. It is located among the other NAV configurastion files. Here you can make your own views if you want to see other statistics. A view is defined by starting and ending . You can add as many views as you want as long as they are unique. A view needs certain parameters to function properly: name, path and dsdescr.
You may also adjust the timeout for the cache here. This is done in the ss_general view. The values are in seconds.