Embedding Operational Intelligence into Junos Devices Through On-Box Scripts

Abstract

Juniper Networks included automation as an early feature of its Junos operating system by offering a comprehensive API that could deliver the same degree of control to applications or scripts as is possible from the device CLI. While this automation is also possible from remote centralized servers, this chapter explores local device automation through on-box scripts. Because these scripts execute on the Junos device itself, they allow operational intelligence to be embedded directly into the device, allowing it to automatically react to changing conditions in the network without operator involvement. The three types of Junos on-box scripts are covered along with each of their unique abilities to customize and manage Junos devices.