Hello, dear!
Good day to you!
In this post, I will introduce the Linux virtual network interface – bond.
What is bond
Generally, bonding is to bind multiple physical network interfaces to make them run like a network interface. The bonding technology implements network port redundancy and load balancing, achieving high availability and reliability. Enterprise Linux allows administrators to bind multiple network interfaces to a channel by using a bonding kernel module and a special network interface called a channel bonding interface. According to the selected binding mode, channel binding, two or more network interfaces are used as a network interface, thereby increasing bandwidth and/providing redundancy.
How to set up a bond to implement link aggregation
First, we need the hosts of two virtual NICs.
Like this, there are two virtual NICs eth0 and eth1.
Before the experiment, delete all the configured IP addresses to maintain a pure environment.
As shown in the following figure.
[root@desktop20 Desktop]# nmcli connection add con-name bond0 ifname bond0 type bond mode active-backup ip4 172.XX.XX.20/24 ## set upbond0
[root@desktop20 Desktop]# watch -n 1 cat /proc/net/bonding/bond0 ## Surveillance
[root@desktop20 Desktop]# nmcli connection add con-name eth0 ifname eth0 type bond-slave master bond0 ## Add eth0 to bond0.
[root@desktop20 Desktop]# nmcli connection add con-name eth1 ifname eth1 type bond-slave master bond0 ## Add eth1 to bond0.
[root@desktop20 Desktop]# ifconfig eth0 down
[root@desktop20 Desktop]# ifconfig eth0 up
Hope you can learn about it!
