The CPC4400s are the first CompactPCI switches compliant with the PICMG 2.16 standard, which offers the option of sending all Ethernet signals through the midplane - enabling designers to vastly increase the inter-board communication capabilities of subsystems located in a CompactPCI chassis. By moving the system traffic from the shared bus architecture of CompactPCI to a fault-tolerant, yet industry standard, switchedbackplane approach, overall system throughput can be doubled while retaining the inherent robustness, reliability and hot-swap capabilities of CompactPCI. The CPC4400s come from the leader in fault tolerant Ethernet switching. They are the first 10/100/1000 Ethernet switches in the cPCI form factor to offer sophisticated high availability switching features including 802.3AD Link Aggregation, VRRP, 802.1q VLANs and 802.1p CoS. They can be configured as fully redundant, non-blocking switching fabrics to help ensure that no single point of failure halts network traffic. The CPC4400s have been specifically designed to make embedded system integration tasks easier. Each comes with a potent scripting language, called Lua, that can be used to easily change switch configuration/behavior, attached client setups, fail-over rules, etc., based on SNMP traps, network events or system configuration changes.