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Old 11-30-2007, 04:59 AM   #1
groxy
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Arrow How to determine the real speed of gigabit network card


Hi All,
I am usuing SUSE 10.2
I have configured two gigabit ethernet cards, I have direct connection between two IBM servers(system x3650) using crossed cable, (interface eth1). However, using “scp” command to copy files between 2 machines I achieved a speed of 6-7 MByte/sec, so the same as using 100Mb Ethernet card. How can I check what is the speed at which the gigabit cards are really operating?

Output from ifconfig:

th0 Link encap:Ethernet HWaddr 00:30:05:CE:24:58
inet addr:10.0.1.200 Bcast:10.0.1.255 Mask:255.255.255.0
inet6 addr: fe80::210:5ff:fec4:8438/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:266848247 errors:0 dropped:0 overruns:0 frame:0
TX packets:286466854 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:82981865619 (79137.6 Mb) TX bytes:267715339165 (255313.2 Mb)
Base address:0x3000 Memory:fd000000-fd020000

eth1 Link encap:Ethernet HWaddr 00:0E:2C:C4:CF:69
inet addr:10.0.0.18 Bcast:10.10.10.255 Mask:255.255.255.0
inet6 addr: fe80::22e:cff:fbc4:bf69/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:392976943 errors:0 dropped:0 overruns:0 frame:0
TX packets:749907215 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:26952094155 (25703.5 Mb) TX bytes:1125392874108 (1073258.2 Mb)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:428393217 errors:0 dropped:0 overruns:0 frame:0
TX packets:428393217 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:142795818150 (136180.7 Mb) TX bytes:142795818150 (136180.7 Mb)

Thanks for any hints
Groxy
 
Old 11-30-2007, 02:47 PM   #2
camorri
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Try the command 'ethertool eth1' ( without quotes ) to check the parameters set for eth1. If you get command not found, you may need to install ethtool first.

Hope this helps.
 
  


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