Abstract: In the competitive landscape of network service provision, the ability to rapidly and efficiently upgrade infrastructure is crucial. This talk focuses on an advanced automated service migration tool implemented within Cisco Network Services Orchestrator (NSO) that addresses the challenges of transitioning network device configurations during upgrades. In an ideal scenario in which all network services are provisioned via NSO, service migration is a straightforward process of collecting and redeploying service instances with updated models. However, in the complex 'brownfield' environments commonly faced by service providers, incomplete service models and frequent out-of-band configurations complicate this process. Recognizing this, our approach – successfully applied by Telecom Italia Mobile (TIM) – does not rely on pre-defined service models and costly service discovery/reconciliation primitives, but instead employs a "service-model-blind" method. This method leverages high-level classification rules, cross-technology translation templates, and adaptive configuration copying for migrations within the same technology. The session will outline the challenges of service migration, introduce our approach, and demonstrate its effectiveness through a live showcase. Presented collaboratively by a Cisco CX team member and a customer representative, this presentation will offer insights into overcoming the complexities of network service migrations in a real world use case scenario.
Speakers: Marco Bonola, Customer Delivery Software Architect, Cisco CX Paolo Fasano, Manager at Telecomitalia
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