These Gigabit Ethernet switches deliver quad-speed performance 10/100/1000 & 10 Gigabit Ethernet, as well as advanced voice-enhanced features such as Power over Ethernet (Po E), auto-voice VLAN, & quality of service (Qo S). As a result, they are ideal for enterprise organizations seeking to build a secure, convergence-enhanced campus network. Robust IPv 6 support & 10 Gigabit Ethernet uplinks future-proof an enterprise network against obsolescence. Resilient Ring Protection Protocol (RRPP), smart link, & Intelligent Resilient Framework (IRF) deliver 50 ms switchover & carrier-class reliability.