The HP E5400 zl Switch series consists of advanced intelligent switches in the HP E-series product-line. The foundation for the switches is a purpose-built, programmable Pro Vision ASIC that allows the most demanding networking features, such as quality of service (Qo S) & security, to be implemented in a scalable yet granular fashion. With 10/100, Gigabit Ethernet & 10 Gigabit Ethernet interfaces, integrated layer 3 features & HP Alliance ONE solutions, the E5400 zl switches offer excellent investment protection, flexibility, & scalability, as well as ease of deployment, operation, & maintenance.