New and Changed Feature Information

This table summarizes the new and changed feature information for the System Security Configuration Guide for Cisco NCS 5000 Series Routers, and tells you where they are documented.

System Security Features Added or Modified in IOS XR Release 7.4.x

Feature Description Changed in Release Where Documented

Admin Access for NETCONF and gRPC Sessions

This feature was introduced.

Release 7.4.1

Admin Access for NETCONF and gRPC Sessions

Hold-Down Timer for TACACS+

This feature was introduced.

Release 7.4.1

Hold-Down Timer for TACACS+

NETCONF Access Control Model (NACM) for protocol operations and authorization

Added CLI commands to configure NACM rule-lists, rules and groups in addition to existing support for YANG data models. NACM prefer-external and only-external keywords are introduced.

Release 7.4.1

Model-based AAA