PacketExpert is a quad-port Ethernet/packet tester that supports 4 Gb Ethernet ports and connects to the PC through a USB 2.0 interface. Each GigE port provides independent Ethernet/IP testing at wirespeed for applications such as BERT, RFC 2544 and many more. This device simplifies Ethernet testing at all protocol layers — from raw Ethernet to IP/UDP packets. It can also be used as a general-purpose Ethernet performance analysis tool for 10/100 Mbps or 1 Gbps Ethernet local area networks. Testing on optical fiber links can be performed. Results are displayed in both tabular and graphical format.