... speed loopback from network layer 1 to layer 4-Smart loopback as per different layer Rx data-Support ... and respond Ping testingFeatures:-Portable, smart and light-Easy to use, to use two ... with all Ethernet analyzers, including GEA8120A, GEA8130A, IAT-1710A, etc.-Compact design, waterproof , dustproof , shockproofApplications:Specifications: Gigabit Ethernet Network Reflector