[Contents] [Prev] [Next] [Index] [Report an Error]

Unified ISSU

A unified in-service software upgrade (unified ISSU) enables you to upgrade between two different JUNOS software releases with no disruption on the control plane and with minimal disruption of traffic. Unified ISSUs are only supported by dual Routing Engine platforms. In addition, graceful Routing Engine switchover (GRES) and nonstop active routing (NSR) must be enabled.

With a unified ISSU, you can eliminate network downtime, reduce operating costs, and deliver higher services levels. For more information, see Unified ISSU Overview.

[Contents] [Prev] [Next] [Index] [Report an Error]