Wtm.nlm generates a log file for troubleshooting WAN Traffic Manager. This log file is named wanman.log and is found in the sys:system directory of each server running wtm.nlm. You can use a text editor to view the log file.
Various activities are displayed on the server screen and copied to the log file, such as:
The default size of the log file is 512 KB, and can range from 10KB to 10 .24 MB. You can change the size of the log file with a WAN Traffic Manager console command. Once the log file reaches its size limit, it is renamed wanman.old and a new one is created.