Xiangtong Qi The Hong Kong University of Science and Technology Intent-based Network Resource Intelligent Reconfiguration: Mechanism Design Xiangtong Qi The Hong Kong University of Science and Technology

What is Intent? Examples of Intent “I want to set up a flow from A to B with a bandwidth of 400M” “I want add 100M bandwidth to my flow” “I want the utilization rate below 40% for all links” Intents may be described in terms of Network Resource, Constraints, Criteria, Instructions From ONOS project How to manage these intents?

An Abstract View of Intent Network Resources (Bandwidth, Service, IP Address, etc.) Intent Management System Network Operator Network Users Fact Resource never enough to satisfy all users Challenge High flexibility Gaming behavior Solution Mechanism for effective resource allocation Question Conflict resolution Effectiveness Fairness

Mechanism Design: A suit of integrated Solutions Network Operator Optimization Resource utilization System stability Fairness Individual service level Game Theory User 1 User 2 User 3

Example of Network Traffic Control Capacity = 100M for all links Intent 1 Setting up a flow of 100M from A to B C A B D Intent 2 Setting up a flow of 100M from C to D

Optimization for System Effectiveness B A C D Both intents are installed Total resource consumption is minimized Network load is balanced

Underlying the Optimization C A B D Time-varying multi-commodity network flow Automatically generating solutions Tailored-made optimization algorithms Demo Users’ intents: flow adjustment Operator’s intent: load balancing

If Intent 1 is submitted earlier, … C A B D Shortest Path for Intent 1, rejecting Intent 2? A longer path for Intent 1, waiting for Intent 2? C A B D

Game-Theoretic Analysis For fairness Priority-based solution Round-robin solution Market-oriented solution (pricing, bidding, auction) For effectiveness Ensuring truth telling Incentivizing traffic smoothing …

Mechanism for Intent Management Optimization Multiple objectives Forward looking Robust Automatic recovery Game theoretical analysis Effectiveness Fairness Truth telling Sustainability

Intent of My Talk: Objectives Thanks