Theres your problem. You have one machien running at 1000 full duplex,
and auto negotiating seems to be working (probably plugged into a 1000
full duplex switch)
Your second machine is confused and doesn't know what to do, so is most
likely set at 10/half duplex. Perhaps the switch/hub your second
machine is plugged into is not auto-negotiating correctly. The best
thing to do in this case is set your switch/hub AND your machines to
auto-neg. Or, do what we do, and set your switch/hub to what ever speed
you want, and then use mii-tool in your case ehtool to set your card as
well. Thsi way you are in direct control. The important thing here is
to make sure your hub/switch is not trying to auto-negotiate if you
aren't and vice versa. They need to be talking the same language.
Wayner
>>> unixsyzadmin@xxxxxxxxx 02/16/06 8:57 PM >>>
Hi,
The data transfer rate between the linux servers here is very slow. For
example scp to copy a folder from one machine to another machine takes a
long time. The scp shows a speed only between 700KB to 1MB per second.
How
can I improve the speed, please guide me. I tried the following:
[root@bangapps 9.1]# ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: umbg
Wake-on: d
Current message level: 0x00000007 (7)
Link detected: yes
[root@bangapps 9.1]# ethtool -s eth0 speed 100 duplex full autoneg off
[root@bangapps 9.1]# ethtool eth0
Settings for eth0:
Supported ports: [ TP ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: Not reported
Advertised auto-negotiation: No
Speed: Unknown! (65535)
Duplex: Unknown! (255)
Port: Twisted Pair
PHYAD: 0
Transceiver: internal
Auto-negotiation: off
Supports Wake-on: umbg
Wake-on: d
Current message level: 0x00000007 (7)
Link detected: no
Regards,
-GnanaShekar-
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