GPIB ENET/100 Compatibility with TCP/IP not UDP/IPHardware: GPIB>>External Controllers/Convertors>>GPIB-ENET
Problem: Does the GPIB ENET/100 work with a UDP/IP Network? Solution: No, neither the GPIB ENET nor the GPIB ENET/100 work with a UDP/IP network. Both devices require a TCP/IP network. The reason lies with the fundamental design of Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). UDP and TCP are protocols that devices and computers connected to the internet most often use to communicate with each other. While transferring data over TCP, computers connect directly with each other and stay connected for the duration of the transfer. This method is faster and more reliable, however, it puts a higher load on the computer to monitor the connection and data flow. National Instruments GPIB ENET and GPIB ENET/100 devices were designed to work with the TCP protocol. When transferring data via UDP, computers package data into packets and release them to the network. UDP does not connect directly to the receiving computer, but relies on intermittent devices to ensure the successful delivery of the packets. This method is not as reliable as TCP for the above reason and is not compatible with our GPIB ENET and GPIB ENET/100 devices. Related Links: KnowledgeBase 21O937LI: When to Use UDP Instead of TCP Prodcut Manuals: Ethernet GPIB Controller for PCs and Workstations Attachments: [Amaury Rolin 4/18/2002] Gatekeeping and minor edits [Don Clinchy, 4/26/02] Minor style edits.
Report Date: 04/12/2002 Last Updated: 11/04/2008 Document ID: 2KB7TOQU |
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