NuTAP-311 is a portable network TAP device. Embedded with 2 Network Ports and 2 Monitor Ports, NuTAP-311 can monitor and redirect any data streams flowing  through it.
Network TAP is a hardware device/software that allows monitoring data flows in a network environment dynamically without any interference.
As mentioned above, NuTAP-311 is embedded with 2 Network Ports and is capable of monitoring all data flows between two network points. All data traffic flows between NuTAP-311's Network Port A0 and A1 can be brought out for further analysis and research dynamically and without intervening network environment.
NuTAP-311 is embedded with 4 Configuration Buttons and 4 Operation Buttons, allowing users to configure test criteria and make NuTAP-311 system settings. Also, the LCD screen located on NuTAP-311's front panel makes it easy to view test statistics and system information easily.
Also, you can configure test criteria and make NuTAP-311 system settings with Web Browser (by connecting NuTAP-311's Management Port to a network where a PC is located), HyperTerminal (by connecting NuTAP-311's Console Port to PC's Serial Port via a RJ45-to-USB cable), and NuSet-MiniTAP (by connecting NuTAP-311's Mini-USB Port with PC's USB Port).
NuTAP-311 is a compact, lightweight, and highly cost-effective device that provides 3 different filters for users to choose: Forwarding Filter, Re-Direct Filter, and Capture Criteria. All these filters are powered by Xtramus SDFR (Self-Discover Filtering Rules), which makes packet capturing/filtering over Ethernet easy and convenient.

● Filter and redirect TAP streams to monitor port by SDFR technique which can ease the loading of monitor PC

● SDFR (Self-Discover Filtering Rules), a set of filtering rules including Destination Address, Source Address, VLAN, Destination IP, Source IP, Destination Port, and Source Port

● 2 Network Ports and 2 Monitor Ports of 10/100/1000 Mbps RJ45 Ethernet port

● 1 Management Port which allows users to make system management/test settings and view test statistics via Web Browser

● 1 Console Port which allows users to make system management/test settings and view test statistics viaHyperTerminal

● 1 Mini-USB Port which allows users to configure test variables, access test results, and upgrade firmware/FPGA via NuSet-MiniTAP

● Both Network Ports support Universal Stream Counter (USC), each USC can contain up to 256 sets of 32-bit statistics including Packets, Bytes, Packet Broadcast, CRC Error, IPCS Error, Packet Multicast, and Transferring Rate

● NuSet-MiniTAP, a utility software designed for NuTAP-311 and runs under Windows environment. When connecting NuTAP-311 with your PC via a Mini USB cable, it allows users to:

● NuTAP-311's firmware and FPGA upgrading

● Monitor data flows in the network environment

● Configure test settings and accessing test results

● Set 2 sets of Session Filter including Port A → Port B and Port B → Port A

● Set SDFR (Self-Discover Filtering Rules). SDFR is a set of filtering rules including Packets, Bytes, Packet Broadcast, CRC Error, IPCS Error, Packet Multicast, and Transferring Rate

● Support multi-language User Interface including Simplified Chinese and English

● Embedded with control buttons and LCD display screen that allow users to set test criteria and view test statistics