Nortel BM450 Troubleshooting Manual page 17

Chapter 2 Initial Troubleshooting 17
used to compare against the results that you get when your network is experiencing trouble. For
example, ping each node to discover how long it typically takes to receive a response from devices
on your network. Capture and save each device's response time and when you are troubleshooting
you can use these baseline response times to help you troubleshoot.
BCM450 Troubleshooting Guide