In-Service Software Upgrade(ISSU) on QFX5100

In order to upgrade a device, traditionally a downtime is needed to upgrade the Routing Engine. You could avoid the downtime if you have redundant Routing Engines. This is possible in the chassis based platforms where features that enable high availability like Graceful Routing Engine Switchover (GRES), NonStop Routing (NSR) and NonStop Bridging (NSB) allows smoother… Keep reading »