***GVA4 IFCONFIG*** [root@w04gva cottrell]# date; /sbin/ifconfig Fri Jan 17 20:19:14 CET 2003 eth0 Link encap:Ethernet HWaddr 00:00:5A:9A:AA:28 inet addr:192.91.239.4 Bcast:192.91.239.63 Mask:255.255.255.192 UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1 RX packets:74977 errors:1 dropped:0 overruns:0 frame:0 TX packets:31 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:112459162 (107.2 Mb) TX bytes:7006 (6.8 Kb) Interrupt:96 eth1 Link encap:Ethernet HWaddr 00:00:5A:9A:7E:58 inet addr:145.146.97.25 Bcast:145.146.97.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) Interrupt:104 eth2 Link encap:Ethernet HWaddr 00:30:48:12:63:F8 inet addr:192.91.244.14 Bcast:192.91.244.31 Mask:255.255.255.224 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:63 errors:0 dropped:0 overruns:0 frame:0 TX packets:75 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:7628 (7.4 Kb) TX bytes:5524 (5.3 Kb) Interrupt:28 Base address:0x3000 Memory:fc200000-fc220000 eth3 Link encap:Ethernet HWaddr 00:30:48:12:63:F9 inet addr:172.0.0.4 Bcast:172.0.255.255 Mask:255.255.0.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 b) TX bytes:256 (256.0 b) Interrupt:29 Base address:0x3040 Memory:fc220000-fc240000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:15 errors:0 dropped:0 overruns:0 frame:0 TX packets:15 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1176 (1.1 Kb) TX bytes:1176 (1.1 Kb) [root@w04gva cottrell]# ***SNV17 IFCONFIG*** [cottrell@cit-slac17 ~]$ date ; ifconfig Fri Jan 17 11:19:20 PST 2003 eth0 Link encap:Ethernet HWaddr 00:00:5A:9B:67:B8 inet addr:198.51.111.74 Bcast:198.51.111.75 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:9000 Metric:1 RX packets:193835116 errors:0 dropped:0 overruns:0 frame:0 TX packets:175893 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:4211924752 (4016.8 Mb) TX bytes:248283535 (236.7 Mb) Interrupt:104 eth1 Link encap:Ethernet HWaddr 00:00:5A:9A:DB:38 inet addr:198.51.111.78 Bcast:198.51.111.79 Mask:255.255.255.252 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 b) TX bytes:320 (320.0 b) Interrupt:72 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:3284 errors:0 dropped:0 overruns:0 frame:0 TX packets:3284 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:309536 (302.2 Kb) TX bytes:309536 (302.2 Kb) [cottrell@cit-slac17 ~]$ ***tcpdump output*** 20:20:43.377589 198.51.111.74.33157 > w04gva-ge-0.cern.datatag.org.5014: S 2558237026:2558237026(0) win 17920 (DF) 20:20:43.377634 w04gva-ge-0.cern.datatag.org.5014 > 198.51.111.74.33157: S 2580929498:2580929498(0) ack 2558237027 win 17896 (DF) 20:20:43.559597 198.51.111.74.33157 > w04gva-ge-0.cern.datatag.org.5014: . ack 1 win 17 (DF) 20:20:43.743485 198.51.111.74.33157 > w04gva-ge-0.cern.datatag.org.5014: . 1:1449(1448) ack 1 win 17 (DF) 20:20:43.743506 w04gva-ge-0.cern.datatag.org.5014 > 198.51.111.74.33157: . ack 1449 win 19 (DF) 20:20:43.743521 198.51.111.74.33157 > w04gva-ge-0.cern.datatag.org.5014: . 1449:2897(1448) ack 1 win 17 (DF) 20:20:43.743531 w04gva-ge-0.cern.datatag.org.5014 > 198.51.111.74.33157: . ack 2897 win 22 (DF) 20:20:43.925559 198.51.111.74.33157 > w04gva-ge-0.cern.datatag.org.5014: . 2897:4345(1448) ack 1 win 17 (DF) 20:20:43.925570 w04gva-ge-0.cern.datatag.org.5014 > 198.51.111.74.33157: . ack 4345 win 25 (DF) 20:20:43.925594 198.51.111.74.33157 > w04gva-ge-0.cern.datatag.org.5014: . 4345:5793(1448) ack 1 win 17 (DF) 20:20:43.925618 w04gva-ge-0.cern.datatag.org.5014 > 198.51.111.74.33157: . ack 5793 win 28 (DF) 20:20:43.925607 198.51.111.74.33157 > w04gva-ge-0.cern.datatag.org.5014: . 5793:7241(1448) ack 1 win 17 (DF) ***iperf server(GA4)*** [cottrell@w04gva ~]$ iperf -s -w 32M -p 5014 ------------------------------------------------------------ Server listening on TCP port 5014 TCP window size: 61.8 MByte (WARNING: requested 32.0 MByte) ------------------------------------------------------------ [ 6] local 192.91.239.4 port 5014 connected with 198.51.111.74 port 33153 [ ID] Interval Transfer Bandwidth [ 6] 0.0- 7.8 sec 51.3 MBytes 55.2 Mbits/sec [ 6] local 192.91.239.4 port 5014 connected with 198.51.111.74 port 33155 [ ID] Interval Transfer Bandwidth [ 6] 0.0- 8.3 sec 51.3 MBytes 51.7 Mbits/sec [ 6] local 192.91.239.4 port 5014 connected with 198.51.111.74 port 33157 [ ID] Interval Transfer Bandwidth [ 6] 0.0- 5.0 sec 61.2 MBytes 103 Mbits/sec **iperf command*** [cottrell@cit-slac17 ~]$ time iperf -c 192.91.239.4 -w 32M -p 5014 -t 1 ------------------------------------------------------------ Client connecting to 192.91.239.4, TCP port 5014 TCP window size: 64.0 MByte (WARNING: requested 32.0 MByte) ------------------------------------------------------------ [ 3] local 198.51.111.74 port 33157 connected with 192.91.239.4 port 5014 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.1 sec 61.2 MBytes 99.7 Mbits/sec 0.000u 0.880s 0:05.33 16.5% 0+0k 0+0io 191pf+0w [cottrell@cit-slac17 ~]$