Bob Dobinson

Learn More
We have designed and implemented a system that permits the measurement of network Quality of Service (QoS) parameters. This system allows us to objectively evaluate the requirements of network applications for delivering user acceptable quality. We use FastEthernet taps to monitor full-duplex traffic and programmable network interface cards to extract all(More)
The use of Ethernet in implementing the ATLAS second level at the CERN Large Hadron Collider (LHC) is considered. Tests carried out on a large network testbed using 100 Mbps DS links and switches are used as a reference point. The evolution and present status of the IEEE 802.3 Ethernet standard is reviewed and technical problems in exploiting the technology(More)
The article analyzes a proposed network topology for the ATLAS DAQ DataFlow, and identi es the Ethernet features required for a proper operation of the network: MAC address table size, switch performance in terms of throughput and latency, the use of Flow Control, Virtual LANs and Quality of Service. We investigate these features on some Ethernet switches,(More)
  • 1