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1000baseT/Full 支持并宣传但不起作用！

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1000baseT/Full 支持并宣传但不起作用！

我使用的是带集成卡的 AT3IONT-I 主板。如果我将其设置为 1000 全双工，它将无法工作！以下是 sudo ethtool eth0：

 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 pause frame use: Symmetric Receive-only
    Advertised auto-negotiation: Yes
    Speed: 100Mb/s
    Duplex: Full
    Port: Twisted Pair
    PHYAD: 0
    Transceiver: internal
    Auto-negotiation: on
    MDI-X: Unknown
    Supports Wake-on: pumbg
    Wake-on: g
    Current message level: 0x00000033 (51)
    Link detected: yes

这是 sudo lshw -C 网络：

 *-network               
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: eth0
       version: 03
       serial: bc:ae:c5:8b:7d:33
       size: 100MB/s
       capacity: 1GB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.021.00-NAPI duplex=full ip=192.168.0.2 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s
       resources: irq:42 ioport:e800(size=256) memory:f8fff000-f8ffffff memory:f8ff8000-f8ffbfff memory:fbff0000-fbffffff

以及 lspci -nn：

 00:00.0 Host bridge [0600]: nVidia Corporation MCP79 Host Bridge [10de:0a82] (rev b1)
00:00.1 RAM memory [0500]: nVidia Corporation MCP79 Memory Controller [10de:0a88] (rev b1)
00:03.0 ISA bridge [0601]: nVidia Corporation MCP79 LPC Bridge [10de:0aad] (rev b3)
00:03.1 RAM memory [0500]: nVidia Corporation MCP79 Memory Controller [10de:0aa4] (rev b1)
00:03.2 SMBus [0c05]: nVidia Corporation MCP79 SMBus [10de:0aa2] (rev b1)
00:03.3 RAM memory [0500]: nVidia Corporation MCP79 Memory Controller [10de:0a89] (rev b1)
00:03.5 Co-processor [0b40]: nVidia Corporation MCP79 Co-processor [10de:0aa3] (rev b1)
00:04.0 USB Controller [0c03]: nVidia Corporation MCP79 OHCI USB 1.1 Controller [10de:0aa5] (rev b1)
00:04.1 USB Controller [0c03]: nVidia Corporation MCP79 EHCI USB 2.0 Controller [10de:0aa6] (rev b1)
00:06.0 USB Controller [0c03]: nVidia Corporation MCP79 OHCI USB 1.1 Controller [10de:0aa7] (rev b1)
00:06.1 USB Controller [0c03]: nVidia Corporation MCP79 EHCI USB 2.0 Controller [10de:0aa9] (rev b1)
00:08.0 Audio device [0403]: nVidia Corporation MCP79 High Definition Audio [10de:0ac0] (rev b1)
00:09.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Bridge [10de:0aab] (rev b1)
00:0b.0 RAID bus controller [0104]: nVidia Corporation MCP79 RAID Controller [10de:0abc] (rev b1)
00:0c.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Express Bridge [10de:0ac4] (rev b1)
00:10.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Express Bridge [10de:0aa0] (rev b1)
00:15.0 PCI bridge [0604]: nVidia Corporation MCP79 PCI Express Bridge [10de:0ac6] (rev b1)
03:00.0 VGA compatible controller [0300]: nVidia Corporation ION VGA [10de:087d] (rev b1)
04:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 03)

如果我用

代码：

sudo ethtool -s eth0  speed 1000 duplex full autoneg off

然后在 ethtool 中速度是未知的并且它不起作用；如果我通过预先设置它它也不会起作用......

请帮忙！！

谢谢！

答案1

您的交换机也需要支持千兆，并且您需要使用 cat5e 电缆。

答案2

请记住，PC 上的网络适配器（NIC）和交换机或路由器均支持 1000Base。如果两个设备都不支持 1000Base，则它们会降低到支持的最大值。例如，如果您的路由器支持 10/100/1000，但网卡支持 10/100，那么您将连接到两个设备之间支持的最大值 100。

如果您的 PC 网卡上有 10/100/1000，但是路由器或交换机仅支持 10/100，那么您最多只能以 100 进行连接。

最坏的情况是交换机仅支持 10，而您有 10/100/1000 网卡。在这种情况下，您的最大值将是 10，因为它是两个设备可以相互通信的唯一一个。

请验证您的交换机/路由器的最大连接数并告知我们。

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