Interface to the Routing System (I2RS) Traceability: Framework and Information Model

Abstract

This document describes a framework for traceability in the Interface to the Routing System (I2RS) and the information model for that framework. It specifies the motivation, requirements, and use cases, and defines an information model for recording interactions between elements implementing the I2RS protocol. This framework provides a consistent tracing interface for components implementing the I2RS architecture to record what was done, by which component, and when. It aims to improve the management of I2RS implementations, and can be used for troubleshooting, auditing, forensics, and accounting purposes.

Interface to the Routing System (I2RS) Security-Related Requirements

“…SEC-REQ-19: The I2RS higher-layer protocol MUST provide a mechanism for message traceability (requirements in [RFC7922]) that supports the tracking higher-layer functions run across secure connection or a non-secure transport.…”

“…o "An Architecture for the Interface to the Routing System" [RFC7921] o "I2RS Ephemeral State Requirements" [RFC8242] o "Interface to the Routing System (I2RS) Traceability: Framework and Information Model" (which discusses traceability) [RFC7923] o "Requirements for Subscription to YANG Datastores" (which highlights the publication/subscription requirements) [RFC7922] Since the I2RS "higher-layer" protocol changes the interface to the routing systems, it is important that implementers understand the new security requirements for the environment the I2RS protocol operates in. A summary of the I2RS protocol security environment is found in the I2RS architecture [RFC7921].…”