nic.md

#NIC

ring buffer

## view
ethtool -g eth0
## modify
ethtool -G eth0 tx 1024
## view infomation
ethtool -S eth0

ifconfig

• promisc mode

 ifconfig eth0 promisc
 ifconfig eth0 -promisc

bond

install

apt-get install ifenslave

interface config

auto bond0
allow-hotplug bond0
iface bond0 inet static
	address 10.10.10.10
	netmask 255.255.255.0
	gateway 10.10.10.1
	slaves eth0 eth1
	bond_mode balance-alb
	bond_miimon 100
	bond_downdelay 200
	bond_updelay 200
	dns-nameservers 114.114.114.114

check stats

cat /proc/net/bonding/bond0 

• debian Refer : https://wiki.debian.org/Bonding
• Refer: http://www.enterprisenetworkingplanet.com/linux_unix/article.php/3850636/Understanding-NIC-Bonding-with-Linux.htm
• Refer: http://www.2cto.com/os/201403/283742.html

install module command

• modinfo MODULE_NAME
• lsmod
• lspci
• lspci -v
• modprobe module
• depmod
• modprobe –v qla4xxx // load driver
• modprobe –r qla4xxx // upload driver

*　Rebuild the kernel module dependencies -> depmod -a -> insmod ./src/r8168.ko

https://wiki.archlinux.org/index.php/Kernel_modules#Loading

depmod

• http://blog.chinaunix.net/uid-16330130-id-2747402.html

#Intel

• Driver https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=15817&lang=zho&OSVersion=Linux*&DownloadType=
• README: http://downloadmirror.intel.com/15817/eng/README.txt

#eth sequence

/etc/udev/rules.d/z25_persistent-net.rules

Nic bonding

• Debian Kernel Module Configuration

# /etc/modules: kernel modules to load at boot time.
 
bonding mode=4 miimon=100 lacp_rate=1

• Debian / Ubuntu Network Setup

#/etc/network/interfaces 
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
 
auto bond0
iface bond0 inet static
	address 10.0.0.80
	gateway 10.0.0.1
	broadcast 10.0.0.255
	netmask 255.255.255.0
	up /sbin/ifenslave bond0 eth1 eth2
	down /sbin/ifenslave -d bond0 eth0 eth1

Note This is dependant upon the ifenslave package, to install run the following:

• apt-get install ifenslave

• Ubuntu 10.04 or newer support an updated interfaces(5) syntax

#/etc/network/interfaces 
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
 
auto eth0
    iface eth0 inet manual
    bond-master bond0
 
auto eth1
     iface eth1 inet manual
     bond-master bond0
 
auto bond0
     iface bond0 inet static
     address 10.0.0.80
     gateway 10.0.0.1
     netmask 255.255.255.0
 
 
bond-mode 802.3ad
bond-miimon 100
bond-lacp-rate 4
bond-slaves none

• http://backdrift.org/howtonetworkbonding

irqbalance

apt-get install irqbalance