Question

A data center engineer must run a custom Python script directly on a Nexus 9000 switch that parses interface counters, needs its own isolated Linux environment with pip-installed libraries (such as requests), and must be able to reach the management network to POST results to an external REST collector. The solution must not require an external server and must keep the script's runtime dependencies separate from the NX-OS system software. Which on-box capability best meets these requirements?

Accepted Answer

Guest Shell, a decoupled Linux (CentOS/Rocky) container running on the switch where custom packages can be installed via pip and NX-OS CLIs accessed through dohost

Answer

An EEM applet with a CLI event trigger that invokes action cli commands to collect and forward the counters

Answer

The NX-OS bash-shell feature enabled from configuration mode, running the script directly against the underlying system Python

Answer

A NETCONF subscription that pushes interface counters to the collector using YANG models over SSH