... , including RFC2544 testing, BER testing-Ethernet optical port and electrical port loopback, up to 1000Mbps-Wire speed ... loopback from network layer 1 to layer 4 ... all Ethernet analyzers, including GEA8120A, GEA8130A, IAT-1710A, etc.-Compact design, waterproof , dustproof , shockproofApplications:Specifications: Gigabit Ethernet Network ...