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→Networking
One Cisco 24-port gigabit switch and one Netgear 24-port 10-gigabit switch are installed in the back of the EHL. The 10g switch provides both 10GBASE-T and SFP+ connections. Where possible, SFP+/DA (Direct Attach) copper cables are used because they are simpler and less expensive than fiber optic cables, and yet offer much lower latency than 10GBASE-T connections (2 nS vs 2 mS - one million times less latency). Devices which do not support SFP+ are connected with 10GBASE-T.
Connections between the EHL LAN in the EHL and the outside world are provided by a [http://www.compulab.co.il/utilite-computer/web/utilite-overview Utilite], a small ARM computer. This computer acts as a [http://www.diablotin.com/librairie/networking/firewall/ch04_02.htm dual-homed host] that provides firewall, NAT, forwarding, DNS, and VPN endpoint services.
=== Storage ===
