lspci能看到ifconfig -a看不到网卡
随着宽带技术的快速发展,服务器使用万兆网卡的概率越来越高。最近装了几台服务器都用的万兆网卡,为了图便宜,网卡和模块都是淘宝上买的,这部还真遇到不少问题。 我的服务器都是centos6.4 64位的,网卡装上后,lspci | grep 82599 能看到网卡 执行lspci |grep 82599能看到网卡在pci设备中 04:00.0 Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01) 但是ifcfg -a 看不到网卡比如p2p1 使用dmesg | grep ixgbe 发现报错,说发现不支持的光模块,查看intel82599使用手册嘿,里面还真说了,那些网卡经过测试, 意思这些默认是支持的。 ixgbe 0000:04:00.0: setting latency timer to 64 ixgbe 0000:04:00.0: failed to load because an unsupported SFP+ module type was detected. ixgbe 0000:04:00.0: Reload the driver after installing a supported module. 后然百度发现有篇文章说到光模块兼容性问题,马上试了一下,果然解决了。 rmmod ixgbe 先删除驱动 重新加载驱动, modprobe ixgbe allow_unsupported_sfp=1,1 驱动对allow_unsupported_sfp的解释为: allow_unsupported_sfp:Allow unsupported and untested SFP+ modules on 82599-based adapters (uint),即允 许82599网卡使用不兼容SFP+模块。 重新加载后,大部分情况下ifconfig就能够看到网卡信息了。 另外如果遇到安装驱动等问题,可以参考intel网卡的readme,里面很全面,不过是英文的。 硬件方面注意模块的光波长,单/多模,光纤收发等。默认支持的模块如下: SFP+ Devices with Pluggable Optics ———————————- 82599-BASED ADAPTERS ——————– NOTES: - If your 82599-based Intel(R) Network Adapter came with Intel optics or is an Intel(R) Ethernet Server Adapter X520-2, then it only supports Intel optics and/or the direct attach cables listed below. - When 82599-based SFP+ devices are connected back to back, they should be set to the same Speed setting via ethtool. Results may vary if you mix speed settings. Supplier Type Part Numbers ——– —- ———— SR Modules Intel DUAL RATE 1G/10G SFP+ SR (bailed) FTLX8571D3BCV-IT Intel DUAL RATE 1G/10G SFP+ SR (bailed) AFBR-703SDZ-IN2 Intel DUAL RATE 1G/10G SFP+ SR (bailed) AFBR-703SDDZ-IN1 LR Modules Intel DUAL RATE 1G/10G SFP+ LR (bailed) FTLX1471D3BCV-IT Intel DUAL RATE 1G/10G SFP+ LR (bailed) AFCT-701SDZ-IN2 Intel DUAL RATE 1G/10G SFP+ LR (bailed) AFCT-701SDDZ-IN1 The following is a list of 3rd party SFP+ modules that have received some testing. Not all modules are applicable to all devices. Supplier Type Part Numbers ——– —- ———— Finisar SFP+ SR bailed, 10g single rate FTLX8571D3BCL Avago SFP+ SR bailed, 10g single rate AFBR-700SDZ Finisar SFP+ LR bailed, 10g single rate FTLX1471D3BCL Finisar DUAL RATE 1G/10G SFP+ SR (No Bail) FTLX8571D3QCV-IT Avago DUAL RATE 1G/10G SFP+ SR (No Bail) AFBR-703SDZ-IN1 Finisar DUAL RATE 1G/10G SFP+ LR (No Bail) FTLX1471D3QCV-IT Avago DUAL RATE 1G/10G SFP+ LR (No Bail) AFCT-701SDZ-IN1 Finisar 1000BASE-T SFP FCLF8522P2BTL Avago 1000BASE-T ABCU-5710RZ HP 1000BASE-SX SFP -001 82599-based adapters support all passive and active limiting direct attach cables that comply with SFF-8431 v4.1 and SFF-8472 v10.4 specifications.(基于这两个协议的模块都支持) 有一点很奇怪的是,我的光模块是Finisar FTLX1471D3BCL,按道理没有任何问题,有可能这次淘宝上买歪了。 最后感谢这篇文章:http://m.blog.csdn.net/article/details?id=
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