Dear sir/madam, We would like to submit the following entries for the Internet2 Land Speed Record (LSR) http://www.internet2.edu/lsr/ in Single Stream IPv4 class and Multi Stream IPV4 class: 1) We achieved 2.38 Gbps with a single stream for duration of 3700 sec over a distance of 10037 KM. That would make 23888060000000000 meters-bits/sec. 2) We achieved 2.335 Gbps with 3 TCP streams for duration of 180 sec over a distance of 10037 KM. That would make 23436395000000000 meters-bits/sec. The path is: Sunnyvale - Chicago - Geneva, (10037 Km). A map of the network is available at http://sravot.home.cern.ch/sravot/Networking/10GbE/10GbE_test.html The traffic crossed two different autonomous systems: AS503(CERN) and AS75 (Teragrid). Network equipment are (4 hops): At Geneva: Cisco OSR7606 router At Chicago (Starlight): Cisco OSR7609 router and Juniper T640 router At Sunnyvale: Cisco GSR 12406 router PCs used are: SuperMicro P4DP8-G2 Motherboard with Dual IntelR XeonT processors, 2.40GHz The Intel 10GE PCI-X adapter (IntelR PRO/10GbE LR) used will become available on the market next week (March 17) The application used is iperf, for which source code is available at http://dast.nlanr.net/Projects/Iperf/. Compliance with rule #6: Each packet contains different data because the user space buffer (8192Byte) is not a multiple of the pay load of the packets (8948 Byte). +============================================================== Single stream entry: -------------------- Sender: [root@cit-slac19 fc]#iperf -c 192.91.239.213 -i 5 -w 40M -t 180 Receiver: [root@w02gva add]# ./iperf-1.6.5 -s -w 128M ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 256 MByte (WARNING: requested 128 MByte) ------------------------------------------------------------ [ 6] local 192.91.239.213 port 5001 connected with 198.51.111.90 port 32857 [ ID] Interval Transfer Bandwidth [ 6] 0.0-3700.0 sec 1099850260480 bits 2.38 Gbits/sec +============================================================== Multi stream entry ( 3 streams): -------------------------------- Sender: [root@cit-slac19 fc]# iperf -c 192.91.239.213 -i 10 -P 3 -w 15M -t 180 Receiver: [root@w02gva fc]# /home/add/iperf-1.6.5 -s -w 128M ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 256 MByte (WARNING: requested 128 MByte) ------------------------------------------------------------ [ 6] local 192.91.239.213 port 5001 connected with 198.51.111.90 port 33044 [ 7] local 192.91.239.213 port 5001 connected with 198.51.111.90 port 33045 [ 8] local 192.91.239.213 port 5001 connected with 198.51.111.90 port 33046 [ ID] Interval Transfer Bandwidth [ 7] 0.0-180.2 sec 16.4 GBytes 780 Mbits/sec [ 6] 0.0-180.5 sec 16.4 GBytes 779 Mbits/sec [ 8] 0.0-180.1 sec 16.3 GBytes 776 Mbits/sec +================================================================ Traceroute: [root@w02gva add]# traceroute -n 198.51.111.90 traceroute to 198.51.111.90 (198.51.111.90), 30 hops max, 38 byte packets 1 192.91.239.214 0.294 ms 0.150 ms 0.144 ms (Cisco OSR7606 at Geneva) 2 192.91.239.225 118.468 ms 118.378 ms 118.376 ms (Cisco OSR7609 at Chicago) 3 192.65.184.157 118.491 ms 118.440 ms 118.427 ms (Juniper T640 Chicago) 4 192.5.175.130 183.407 ms 183.286 ms 183.181 ms (Cisco GSR 12406) 5 198.51.111.90 183.030 ms 183.021 ms 183.022 ms (end-host) Ping: root@w02gva add]# ping 198.51.111.90 PING 198.51.111.90 (198.51.111.90) from 192.91.239.213 : 56(84) bytes of data. 64 bytes from 198.51.111.90: icmp_seq=1 ttl=60 time=183 ms 64 bytes from 198.51.111.90: icmp_seq=2 ttl=60 time=183 ms 64 bytes from 198.51.111.90: icmp_seq=3 ttl=60 time=183 ms 64 bytes from 198.51.111.90: icmp_seq=4 ttl=60 time=183 ms 64 bytes from 198.51.111.90: icmp_seq=5 ttl=60 time=183 ms --- 198.51.111.90 ping statistics --- 5 packets transmitted, 5 received, 0% loss, time 4038ms rtt min/avg/max/mdev = 183.013/183.022/183.044/0.270 ms Sender and receiver side kernel was vanila linux kernel. (Kernel 2.4.19 - standard New-Reno TCP/IP stack) A precise description of the test is available at http://sravot.home.cern.ch/sravot/Networking/10GbE/10GbE_test.html In particular, TCPdump files of shorter transfers and analyzes of TCP transfers with TCPtrace are available. TCP transfers generated with rapid (http://www.cnd.gatech.edu/rapid/) are also available. Our team consists of the following members: California Institute of Technology (Caltech) Harvey Newman Steven Low Sylvain Ravot CERN: Olivier Martin Stanford Linear Accelerator Center (SLAC) Les Cottrell Los Alamos National Laboratory (LANL): Wu-chun Feng Main sponsors are: Intel, Cisco, Level3 DoE, NSF, European Union Let us know if you have any question Kind regards, Sylvain