Bond in linux kernel

Article title: The xen kernel bond in linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

When you bind a network card to a linux instance using the xen kernel, you will see that the network card status is always up, even if you unplug the network cable.

Cat/proc/net/bonding/bond0

In this case, you need to edit the XEN configuration file and specify the bridge device.

Vi/etc/xen/xend-config.sxp

Find a line with netdev and modify it as follows:

(Network-script 'network-bridge netdev = bond0 ')

After the instance is restarted, the system can properly identify the up/down status of the physical Nic.

Cat/proc/net/bonding/pbond0