Intent Negotiation Framework for Intent-driven Service Management

To automate network operations and deployment of compute services, intent-driven service management (IDSM) is essential. It enables network users to express their service requirements in a declarative manner as intents. To fulfill the intents, closed control-loop operations carry out required config- urations and deployments without human intervention. Despite the fact that the intents are fulfilled automatically, conflicts may arise between user’s service requirements specified as intents and service providers due to limited resources availability. This triggers IDSM system to initialize an intent-negotiation process among conflicting actors. Intent-negotiation involves generating one or more alternate intents based on the current state of the underlying physical/virtual resources, which are then presented to the intent creator for acceptance or rejection. In this way, the quality of services (QoS) can be improved significantly by maximizing the acceptance rate of service requests in the scenario of limited resources. However, intent-negotiation systems are still in their infancy. The available solutions are platform dependent which poses various challenges in their adoption to diverse platforms. The main focus of this work is to draft and evaluate a comprehensive and generic intent-negotiation framework which can be used to develop intent-negotiation solutions for diverse IDSM platforms. In this work, we have identified and defined various processes that are necessary for a comprehensive intent- negotiation framework. A generic intent-negotiation framework is then presented representing the interactions among the iden- tified processes, while conflicting actors engage in the intent- negotiation. The performance evaluation results demonstrated that the application of the proposed intent-negotiation framework increases the intent acceptance rate by 7% with processing overheads less than 10%.