This Juniper NetScreen ScreenOS 5.1.0 reference guide explains NSRP high‑availability features, configuration, and management.
The guide provides an overview of the NetScreen Redundancy Protocol (NSRP) and describes how to connect cables, configure, and manage a NetScreen device group to achieve high availability. It covers both active/passive and active/active NSRP configurations, cluster creation, and RTO synchronization.
It also details interface redundancy methods, including aggregated and dual‑Untrust interfaces, and introduces NSRP‑Lite, a simplified NSRP version without RTO sync. Configuration examples for VPN channel IP tracking, path monitoring, and failover handling are included throughout the document. This manual is written in Chinese.