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linux + 如何设置自动协商：从 Linux 机器端否

tag-icon • tag-icon linux networking redhat-enterprise-linux
linux + 如何设置自动协商：从 Linux 机器端否

我们有以下 NIC 配置。来自 ethtool，（服务器是 RHEL 7.9 版本）

ethtool p1p1
Settings for p1p1:
        Supported ports: [ FIBRE ]
        Supported link modes:   10000baseT/Full
        Supported pause frame use: Symmetric
        Supports auto-negotiation: No
        Supported FEC modes: Not reported
        Advertised link modes:  10000baseT/Full
        Advertised pause frame use: Symmetric
        Advertised auto-negotiation: No
        Advertised FEC modes: Not reported
        Speed: 10000Mb/s
        Duplex: Full
        Port: FIBRE
        PHYAD: 0
        Transceiver: internal
        Auto-negotiation: off
        Supports Wake-on: d
        Wake-on: d
        Current message level: 0x00000007 (7)
                               drv probe link
        Link detected: yes

我们尝试将自动协商设置为是的通过添加以下行到ifcfg-p1p1文件并重新启动网络服务，但没有成功。

ETHTOOL_OPTS="speed 10000 duplex full autoneg on"

第二次尝试如下。

ethtool -s p1p1 autoneg  on speed 10000 duplex full
Cannot set new settings: Invalid argument
  not setting speed
  not setting duplex
  not setting autoneg

但没有成功

为了设置自动协商，还有哪些其他选项：是？

或者这可能与思科交换机有关并且无法从 Linux 端配置？

答案1

从输出中您可以看到，此 10000baseT 设备不允许自动协商。

它仅以 10Gbps/全速运行。

没有光纤 10Gbps 设备允许自动协商。

来自维基百科条目...

It was first defined by the IEEE 802.3ae-2002 standard. Unlike previous Ethernet standards, 10GbE defines only full-duplex point-to-point links which are generally connected by network switches; shared-medium CSMA/CD operation has not been carried over from the previous generations of Ethernet standards[1] so half-duplex operation and repeater hubs do not exist in 10GbE.

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