![千兆连接在 Ubuntu 14.04 上无法正常工作](https://linux22.com/image/1130996/%E5%8D%83%E5%85%86%E8%BF%9E%E6%8E%A5%E5%9C%A8%20Ubuntu%2014.04%20%E4%B8%8A%E6%97%A0%E6%B3%95%E6%AD%A3%E5%B8%B8%E5%B7%A5%E4%BD%9C.png)
我在那里,所以我应该可以收到200Mbps
互联网连接速度,但我只能95 Mbps
在 www.speedtest.net 上获取。所以我检查了我的eth0
接口,它似乎支持千兆连接,我的以太网电缆是cat5
。
当我跑步时sudo ethtool eth0
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supported pause frame use: No
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
Link partner advertised pause frame use: Symmetric
Link partner advertised auto-negotiation: Yes
Speed: 100Mb/s
Duplex: Full
Port: MII
PHYAD: 0
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: pumbg
Wake-on: g
Current message level: 0x00000033 (51)
drv probe ifdown ifup
Link detected: yes
这个设置看起来还好吗?我是否应该启用某些功能来使其更接近200 Mbps
?
答案1
Link partner advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
[...]
Speed: 100Mb/s
“链接伙伴”是您的计算机所连接的交换机/路由器/调制解调器。上述诊断的可能解释:
- 链接伙伴不支持千兆以太网(或者由于某种原因已被禁用,例如为了节省电力)。
- 连接电缆的信噪比太低,因为它们缺乏适当的电磁屏蔽。这可能导致链接伙伴同意降低链接速度以保持可靠的连接。如果是这种情况,请将电缆(以及任何其他潜在的连接设备,如墙上插头)更换为至少具有 CAT5e 或 CAT6 屏蔽且未损坏的电缆。