User's Manual

Useful Information and References 395

Useful Information

and References

RRDTool The data collected by 3Com Network Director is logged using RRDTool.

RRDTool is a third-party utility available on the Internet at

http://www.rrdtool.com//index.html

Mapping file format 3Com Network Director maintains a mapping file to allow you to locate

the database for any given device or link. This CSV file contains an entry

for every device or link that has been monitored by 3Com Network

Director now, or in the past.

The format for the mapping file is as follows:

Devices

Example

0/1/08-00-4e-0b-d2-84.rrd, 08-00-4e-0b-d2-84

Links between switches/hubs

Example

0/1/08-00-4e-0b-d2-84=08-00-4e-2c-01-92.rrd,

08-00-4e-0b-d2-84, 08-00-4e-2c-01-92

Links between a switch/hub and an end station/cloud

<Filename>, <Switch MAC address>, U<Switch link unit number>,

P<Switch link port number>

Example 0/1/08-00-4e-0b-d2-84;U1;P4.rrd, 08-00-4e-0b-d2-84,

U1, P4

The filenames listed are relative to the logging directory, for example

0/1/08-00-4e-0b-d2-84.rrd corresponds to

<Installation Directory>\logging\0\1\08-00-4e-0b-d2-84.rrd

As can be seen above, the filename for a device is chosen based on the

MAC address of the device. If you wish to locate a database file for a

given device, you should open the mapping.txt file and look for the

device’s MAC address.