The early versions of igb NIC\/LAN driver were buggy, if your version look like this:<\/p>\n
# ethtool -i eth1\r\ndriver: igb\r\nversion: 5.0.5-k<\/pre>\nAny version under v5.2.15 is buggy and a simple ping test to your server will show packet loss issues, usually around 20%.<\/p>\n
To upgrade the driver, use the following steps.<\/p>\n
1) cd \/root\r\n2) wget http:\/\/sourceforge.net\/projects\/e1000\/files\/igb%20stable\/5.2.17\/igb-5.2.17.tar.gz\r\n3) tar -xvzf igb-5.2.17.tar.gz\r\n4) cd igb-5.2.17\/src\/\r\n5) make install\r\n6) rmmod igb; modprobe igb\r\n7) rmmod ixgbe; modprobe igb\r\n8) vi \/etc\/sysconfig\/modules\/igb.modules\r\n\r\nand set \r\n\r\nmodprobe igb\r\n\r\n9) Following is the output ::\r\n\r\n=========================\r\n\r\nroot@server [~]# modinfo igb\r\n\r\nfilename: \/lib\/modules\/2.6.32-504.12.2.el6.x86_64\/kernel\/drivers\/net\/igb\/igb.ko\r\nversion: 5.2.17\r\nlicense: GPL\r\ndescription: Intel(R) Gigabit Ethernet Network Driver\r\nauthor: Intel Corporation, \r\nsrcversion: 420A0DE22C6377FB9C68995\r\nalias: pci:v00008086d000010D6sv*sd*bc*sc*i*\r\n=======\\\\=================\r\n=======================\r\nroot@server [~]# lsmod | grep dca\r\ndca 7101 1 igb\r\n=======================<\/pre>\nLet’s see the active version after the upgrade:<\/p>\n
# ethtool -i eth1\r\ndriver: igb\r\nversion: 5.2.17\r\nfirmware-version: 1.52, 0x800007ae\r\nbus-info: 0000:01:00.1\r\nsupports-statistics: yes\r\nsupports-test: yes\r\nsupports-eeprom-access: yes\r\nsupports-register-dump: yes\r\nsupports-priv-flags: no<\/pre>\nThat resolves the issue. No reboot\/restart is required.<\/p>\n","protected":false},"excerpt":{"rendered":"