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I have a linux server with appallingly slow network throughput. It's has a gigabit network card, gigabit cables, gigabit switches etc... but the throughput is in KB! The card shows ...
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- 10-10-2006 #1
Appallingly slow networking on server
The card shows up as eth1 and is the only connected network card on the server machine (the others are unplugged and have no ip configuration)
Ethtool shows that the link is up at 1000Mbps so why the hell is it so slow?
ethool eth1 Settings for eth1: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: Twisted Pair PHYAD: 0 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000033 (51) Link detected: yes
Extra Info: the kernel is a modern 2.6.17.
Any ideas how I can make this run at a proper speed something approaching gigabit?
I have a feeling that the switches or cables in between the points are to blame but I have no way of really testing this... Is there a way to test this, perhaps somebody can recommend a good cable speed tester handheld device that I can then use to connect to cables through the switches to test them as well?
(The more I think about this the more I suspect that regular cat5 is being used somewhere.... rather than cat5e)
- 10-11-2006 #2
- Join Date
- Oct 2006
There is one cool cable tester called "FLUKE". Google it.
- 10-11-2006 #3
- 02-01-2007 #4
- Join Date
- Jan 2007
Hi, i have the same problem as you met, and i'm even worse because if more PC trying to get file from server, the transfer rate drop to 3-4MB/s... (ok, i'm getting big file,149GB)
So do you have luck to solve it out??
- 02-01-2007 #5
I don't remember. I don't even know what machine this problem was on now...