Monitor Hardware Components

Purpose

Note: If the System Control Board (SCB), System and Switch Board (SSB), or Forwarding Engine Board (FEB) is not running, information about chassis components is not available through the command-line interface (CLI).

Action

To use the CLI to monitor Juniper Networks routers, follow these steps:

Log in to the router. The CLI operational mode prompt (>) appears.
If the operational mode prompt does not appear when you log in to the router, type cli to start the Junos OS and enter operational mode. The prompt changes to >, indicating that you are in operational mode.
Use one of the operational mode CLI commands listed in Operational Mode CLI Commands for Router Monitoring to monitor router hardware.