15.4. Troubleshooting the Chassis

It is important to be able to check on the health of the overall router and of individual components at will. This section will provide you with the commands needed to perform this task and will explain the various qualifiers for each command. This will be a section to earmark as you work with the Juniper Networks routers until you become proficient enough to know the commands by heart.

15.4.1. Environmental Monitoring

This section addresses how to monitor the temperature, alarms, and general environment of the router. It is important to be able to do these both locally and remotely because there is often no one present at the router. With more and more networks becoming centrally managed, this is a critical component of overall network health control.