In this recipe, we'll write a Python PyEZ-based script, process-isis.py, to connect to one of our JUNOS OS devices and extract the ISIS link-state database. Because of the nature of link-state protocols like ISIS, a single router in the estate holds all of the information of the whole network. In this case, the link-state database knows about all other routers in the IGP domain and the adjacent devices to which they connect. We can use this information to help visualise our network.
Extracting graphs from ISIS
Getting started
In order to complete this recipe, you'll need a Python 2.7 development environment and access to an ISIS-speaking JUNOS OS device. Ideally, you'll also have completed the previous recipe...
