将 Realtek 1000/100/10Mbit 收发器直接连接到普通路由器没有任何限制。
通过直连线(“补丁”)LAN 电缆连接 Realtek 1000/100/10Mbit 收发器时没有连接(“无法激活连接:设备 eth0 上的连接‘Lan 连接名称’不可用,因为设备没有运营商”)。从直连线
更改为交叉电缆启用了常见的 LAN 连接。来自 eth0 启动、手动设置 IP 地址和启用连接的
信息ethtool eth0
nmtui
Settings for eth0:
Supported ports: [ TP MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Full
Supported pause frame use: Symmetric Receive-only
Supports auto-negotiation: Yes
Supported FEC modes: Not reported
Advertised link modes: 1000baseT/Full
Advertised pause frame use: Symmetric Receive-only
Advertised auto-negotiation: Yes
Advertised FEC modes: Not reported
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
Link partner advertised FEC modes: Not reported
Speed: 1000Mb/s
Duplex: Full
Auto-negotiation: on
master-slave cfg: preferred slave
master-slave status: slave
Port: Twisted Pair
PHYAD: 0
Transceiver: external
MDI-X: Unknown (auto)
Supports Wake-on: ug
Wake-on: d
Current message level: 0x0000003f (63)
drv probe link timer ifdown ifup
Link detected: yes
- 发送
ethtool -s eth0 mdi-x on
和ethtool -s eth0 speed 100 autoneg on duplex full
连接可通过交叉和直连线实现。nmtui
上ethtool -s eth0 speed 1000 autoneg on duplex full
无法再启用直连线(CAT5E 标准)的连接。
所有相关的、建议的类似问题都已得到考虑,并对 Serverfault.com 上的“MDI-X”连接设置进行了额外的研究。
这(一些次或者一些自动系统配置重置,也显得不稳定)与(现代)1Gbit 交换机硬件不常见的连接困难是可以预料的,因此
造成这种连接(MDI-X 功能?)限制的原因是什么?