Question

You are writing a Python script that reads the intended VLAN configuration from a YAML source of truth and pushes it to a Catalyst 9300 via RESTCONF. Business requirements state the script must (1) only send changes when the running device config differs from the intended config, and (2) never remove VLANs that were configured out-of-band by another team. Which approach best satisfies both requirements?

Accepted Answer

GET the current VLAN list, compute the set of intended VLANs not already present or with differing attributes, and issue a targeted PATCH containing only those VLANs

Answer

Issue a single PUT to the VLAN list container with the full intended VLAN set on every run to guarantee the device matches the source of truth

Answer

DELETE the entire VLAN list first, then POST each intended VLAN to ensure a clean, deterministic state

Answer

POST each intended VLAN individually and ignore any 409 Conflict responses, relying on the device to skip unchanged entries