Bind multiple NICs (Debian, Ubuntu, SuSE, Fedora, and RH) in Linux versions)
Source: Internet
Author: User
In Linux, you can easily bind multiple NICs to achieve load balancing and dual-line hot backup. Server Load balancer distributes the load evenly to any number of network adapters to achieve dual-line hot standby with overlapping bandwidth. That is, multiple network adapters are backed up to each other. The normal operation of the network can be ensured by any network adapter. Mode = 0Round-robin: sequential (polling load balancing, the most common) mode = 1Active-backup: onlyonemode = 2XOR: sameMA Linux can easily bind multiple network adapters, implements load balancing and dual-line hot standby.
Server Load balancer distributes the average load to any number of network adapters to overlay the bandwidth.
Dual-line Hot Standby means that multiple NICs are backed up to each other. Any one of them can work to ensure the normal operation of the network.
Binding types
Mode = 0 Round-robin: sequential (Round robin load balancing, most commonly used)
Mode = 1 Active-backup: only one
Mode = 2 XOR: same MAC same nic
Mode = 3 Broadcast: all
The major release editions are slightly different, basically divided into three types,
1. edit/etc/modules. conf file (The SuSE system is/etc/modprobe. d/modprobe. cong. local), add the following line to make the system load the bonding module at startup, and the external virtual network interface device is bond0
Alias bond0 bonding
2. Edit the virtual network interface configuration file and specify the IP address of the NIC.
Vi/etc/sysconfig/network-scripts/ifcfg-bond0
(The SuSE system is/etc/sysconfig/network/ifcfg-bond0)
Writing of Fedora
DEVICE = bond0
IPADDR = 192.168.1.1
NETMASK = 255.255.255.0
NETWORK = 192.168.1.0
BROADCAST = 192.168.1.255
ONBOOT = yes
BOOTPROTO = none
USERCTL = no
SuSE statement
BOOTPROTO = 'static'
BROADCAST = '1970. 168.1.255'
ETHTOOL_OPTIONS =''
IPADDR = '192. 168.1.1'
MTU =''
NETMASK = '2017. 255.255.0'
NETWORK = '1970. 168.1.0'
STARTMODE = 'auto'
USERCONTROL = 'no'
3. Edit the physical network interface configuration file and point to the virtual network interface bond0.
Fedora:
The physical network interface configuration file is located in/etc/sysconfig/network-scripts,
The ifcfg-eth0 corresponds to the first Nic, And the ifcfg-eth1 corresponds to the second Gigabit Nic.
Ifcfg-eth0:
DEVICE = eth0
IPADDR = 11.0.0.1
NETMASK = 255.255.255.0
USERCTL = no
ONBOOT = yes
BOOTPROTO = none
Ifcfg-eth1:
DEVICE = eth1
IPADDR = 11.0.0.2
NETMASK = 255.255.255.0
USERCTL = no
ONBOOT = yes
BOOTPROTO = none
SuSE:
The physical network interface configuration file is located at/etc/sysconfig/network /,
Use ifcfg-eth-(mac) as the name
BOOTPROTO = 'static'
IPADDR = '10. 0.0.1'
NETMASK = '2017. 255.255.0'
STARTMODE = 'auto'
USERCONTROL = 'no'
Finally, edit/etc/rc. local (SuSE is/etc/rc. d/rc) or directly run
Ifenslave bond0 eth0 eth1 eth2 (write the names of several NICs when several NICs are bound)
No matter how the IP address of eth0 eth1 eth2 is set, the bind0 setting prevails after binding. The mac addresses of all NICs are the same.
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.
