Question

A service provider is deploying Cisco NSO to automate the provisioning of L3VPN services across a network containing Cisco IOS XR, Cisco IOS XE, and Juniper routers. The network team wants operators to request a VPN service using a single high-level payload, while NSO handles translating that request into the correct device-specific configuration for each platform. Which NSO capability directly enables this behavior?

Accepted Answer

The FASTMAP algorithm combined with service and device YANG models maps a single service instance to vendor-specific configuration rendered through Network Element Drivers (NEDs)

Answer

NSO uses SNMPv3 traps to poll each device and reactively push CLI commands when configuration drift is detected

Answer

NSO relies on NetFlow/IPFIX export records to learn each vendor's configuration syntax before generating templates

Answer

NSO requires a separate Ansible playbook per vendor because it cannot natively abstract multivendor configuration