Tsinghua University Beijing University of Posts and Telecommunications Zhongguancun Laboratory Zhongguancun Laboratory This document specifies an interaction gateway for Network Knowledge Graphs (NKGs) to simplify graph-based network operations. The gateway architecture defines a Unified Intent Gateway (UIG) that supports Natural Language (NL) requests from human operators and Domain-Specific Language (DSL) or API directives from applications and orchestration systems. The UIG interprets user expectations and application directives as structured intents, aligns them with the NKG structure and exposed capabilities, and maps them to graph queries, graph inferences, API calls, or operational workflows through an Intermediate Representation (IR). The gateway architecture incorporates intent discovery, capability mapping, policy enforcement, audit logging, and response synthesis to make NKG-based operations more accessible, secure, and controllable.