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tag-icon • tag-icon linux networking centos intel
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这是配备 Intel 82579LM 适配器的全新 SuperMicro X9SCL-F，并全新安装有带有 cPanel 的 CentOS 6.2。

我卡在 10MBPS，我什么方法都试过了。我还安装了最新的英特尔 1.95 驱动程序，似乎已经为其他人解决了这个问题。

这些命令不执行任何操作。

ethtool -s eth1 speed 100 duplex half
ethtool -s eth1 speed 1000 duplex half
ethtool -s eth1 speed 100 duplex full
ethtool -s eth1 speed 1000 duplex full

在 dmesg 中结果如下：

[ 1081.662365] e1000e 0000:02:00.0: eth1: Reset adapter
[ 1084.298376] e1000e: eth1 NIC Link is Up 10 Mbps Half Duplex, Flow Control: None
[ 1084.298443] e1000e 0000:02:00.0: eth1: Autonegotiated half duplex but link partner cannot autoneg. Try forcing full duplex if link gets many collisions.
[ 1084.298446] e1000e 0000:02:00.0: eth1: 10/100 speed: disabling TSO

此命令将我断开网络

ethtool -s eth1 speed ... autoneg off

输出

ethtool eth1

Settings for eth1:
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: No
Advertised auto-negotiation: Yes
Speed: 10Mb/s
Duplex: Half
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
MDI-X: off
Supports Wake-on: pumbag
Wake-on: g
Current message level: 0x00000001 (1)
Link detected: yes

ethtool -i eth1

driver: e1000e
version: 1.9.5-NAPI
firmware-version: 2.1-2
bus-info: 0000:02:00.0

完整 dmesg：

[    2.332156] e1000e: Intel(R) PRO/1000 Network Driver - 1.2.20-k2
[    2.332159] e1000e: Copyright (c) 1999 - 2010 Intel Corporation.
[    2.332209] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[    2.332225] e1000e 0000:00:19.0: setting latency timer to 64
[    2.332508] e1000e 0000:00:19.0: irq 31 for MSI/MSI-X
[    2.573664] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1) 00:25:90:57:38:e5
[    2.573668] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
[    2.573718] e1000e 0000:00:19.0: eth0: MAC: 10, PHY: 11, PBA No: FFFFFF-0FF
[    2.573777] e1000e 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[    2.573802] e1000e 0000:02:00.0: setting latency timer to 64
[    2.574078] e1000e 0000:02:00.0: irq 32 for MSI/MSI-X
[    2.574083] e1000e 0000:02:00.0: irq 33 for MSI/MSI-X
[    2.574088] e1000e 0000:02:00.0: irq 34 for MSI/MSI-X
[    2.574297] e1000e 0000:02:00.0: Disabling ASPM L0s 
[    2.657292] e1000e 0000:02:00.0: eth1: (PCI Express:2.5GB/s:Width x1) 00:25:90:57:38:e4
[    2.657296] e1000e 0000:02:00.0: eth1: Intel(R) PRO/1000 Network Connection
[    2.657380] e1000e 0000:02:00.0: eth1: MAC: 3, PHY: 8, PBA No: FFFFFF-0FF
[   14.181499] e1000e: eth1 NIC Link is Up 10 Mbps Half Duplex, Flow Control: None
[   14.181565] e1000e 0000:02:00.0: eth1: Autonegotiated half duplex but link partner cannot autoneg.  Try forcing full duplex if link gets many collisions.
[   14.181567] e1000e 0000:02:00.0: eth1: 10/100 speed: disabling TSO
[  476.773721] e1000e 0000:02:00.0: PCI INT A disabled
[  476.789823] e1000e 0000:00:19.0: PCI INT A disabled
[  476.935605] e1000e: Intel(R) PRO/1000 Network Driver - 1.9.5-NAPI
[  476.935608] e1000e: Copyright(c) 1999 - 2011 Intel Corporation.
[  476.935639] e1000e 0000:00:19.0: PCI INT A -> GSI 20 (level, low) -> IRQ 20
[  476.935651] e1000e 0000:00:19.0: setting latency timer to 64
[  477.008135] e1000e 0000:00:19.0: irq 31 for MSI/MSI-X
[  477.184223] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GT/s:Width x1) 00:25:90:57:38:e5
[  477.184227] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
[  477.184298] e1000e 0000:00:19.0: eth0: MAC: 11, PHY: 11, PBA No: FFFFFF-0FF
[  477.184309] e1000e 0000:02:00.0: Disabling ASPM L0s 
[  477.184393] e1000e 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[  477.184417] e1000e 0000:02:00.0: setting latency timer to 64
[  477.184836] e1000e 0000:02:00.0: irq 32 for MSI/MSI-X
[  477.184839] e1000e 0000:02:00.0: irq 33 for MSI/MSI-X
[  477.184841] e1000e 0000:02:00.0: irq 34 for MSI/MSI-X
[  477.334438] e1000e 0000:00:19.0: irq 31 for MSI/MSI-X
[  477.385281] e1000e 0000:00:19.0: irq 31 for MSI/MSI-X
[  477.386305] e1000e 0000:02:00.0: eth1: (PCI Express:2.5GT/s:Width x1) 00:25:90:57:38:e4
[  477.386308] e1000e 0000:02:00.0: eth1: Intel(R) PRO/1000 Network Connection
[  477.386458] e1000e 0000:02:00.0: eth1: MAC: 4, PHY: 8, PBA No: FFFFFF-0FF

卡是以下之一（不确定是哪一个）：

00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 05)
    Subsystem: Super Micro Computer Inc Device 1502
    Flags: bus master, fast devsel, latency 0, IRQ 31
    Memory at fba00000 (32-bit, non-prefetchable) [size=128K]
    Memory at fba24000 (32-bit, non-prefetchable) [size=4K]
    I/O ports at f020 [size=32]
    Capabilities: [c8] Power Management version 2
    Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [e0] PCI Advanced Features
    Kernel driver in use: e1000e
    Kernel modules: e1000e

02:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection
    Subsystem: Super Micro Computer Inc Device 0000
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at fb900000 (32-bit, non-prefetchable) [size=128K]
    I/O ports at e000 [size=32]
    Memory at fb920000 (32-bit, non-prefetchable) [size=16K]
    Capabilities: [c8] Power Management version 2
    Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
    Capabilities: [e0] Express Endpoint, MSI 00
    Capabilities: [a0] MSI-X: Enable+ Count=5 Masked-
    Capabilities: [100] Advanced Error Reporting
    Capabilities: [140] Device Serial Number 00-25-90-ff-ff-57-38-e4
    Kernel driver in use: e1000e
    Kernel modules: e1000e

答案1

因为看起来您已经花费了相当多的时间来验证您的设备是否正常工作，所以现在可能是时候退后一步并执行一项非常基本的、应该是显而易见的检查了。

仔细检查您所连接的交换机/集线器/设备是否真正支持大于 10mb 的链接速度，并且没有任何配置将其限制为仅为 10mb。

答案2

我看到您提到了自动协商，但如果您关闭自动协商，则需要在两端（服务器端和交换机端）都关闭。通常，如果卡无法自动协商，则可能是由于外部干扰。正如 Squidly 所说，您的电缆可能有问题。因此，我建议您按以下顺序操作：

  1. 尝试在两侧关闭自动协商，手动将链路两侧的自动协商设置到 1000/Full。
  2. 如果失败，请尝试用新的或已知良好的电缆替换该电缆。
  3. 完全有可能你的网卡有问题，这种情况是众所周知的。

答案3

以前我也遇到过这种情况。您是否尝试过交换机上的不同端口和不同的以太网电缆。我见过坏电缆可以连接，但无法显示与引脚的连接是否足够好，无法保持高于 10/Half 的适当质量信号。

答案4

我刚刚遇到了同样的问题。我的问题是我通过同一接口通过 ipmitool/SOL 连接。

我一断开 SOL，网速就跳到了 1000mbps

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