J-series Services Routers support a suite of J-Web tools and CLI operational mode commands for evaluating system health and performance. Diagnostic tools and commands test the connectivity and reachability of hosts in the network.
This chapter contains the following topics. For complete descriptions of CLI operational mode commands, see the JUNOS System Basics and Services Command Reference, the JUNOS Interfaces Command Reference, and the JUNOS Routing Protocols and Policies Command Reference.