CentOS6.3網路速度異常 - Linux

各位好!

最近安裝完一台CentOS6.3的主機
可是發現在GIGA網路環境下 區網內FTP or scp 速度卡在12.5MB/S
這似乎是100M的極限速度

我在該區網內其他機器FTP scp 皆能達到正常的1000M速度(30~70MB/S)

我用ethtool eth0觀看網卡運作:
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Link partner advertised pause frame use: Symmetric
Link partner advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
Link detected: yes

其中Speed是顯示1000M沒有錯
請教大家還有甚麼原因會限制住網路速度?

先感謝各位了!


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