In Ubuntu 20.04, NIC bonding is relatively simple to set up and configure. The first step is to install the necessary packages. This can be done by running the following command in the terminal:

sudo apt-get install ifenslave-2.6

Next, you need to edit the /etc/network/interfaces file to configure the bond interface. This is done by adding the following lines to the file:

auto bond0
iface bond0 inet static
    address 192.168.1.10
    netmask 255.255.255.0
    gateway 192.168.1.1
    bond-slaves eth0 eth1
    bond-mode balance-rr
    bond-miimon 100

In this example, bond0 is the name of the bond interface, eth0 and eth1 are the names of the network interfaces that will be bonded together, and balance-rr is the bonding mode that will be used. There are several different bonding modes available, and the appropriate one will depend on your specific needs and network configuration.

After the bond interface has been configured, you can bring it up by running the following command in the terminal:

sudo ifup bond0

At this point, the bond interface should be up and running, and you can use it just like any other network interface. You can check the status of the bond interface by running the ifconfig command, which should show the bond interface as well as the individual network interfaces that are part of the bond.

In summary, NIC bonding is a useful technique for improving the performance and reliability of a network connection. By combining multiple network interfaces into a single bond interface, you can increase the available bandwidth and provide redundancy in case of a failure of one of the underlying network interfaces. In Ubuntu 20.04, setting up NIC bonding is straightforward and can be easily done by editing the /etc/network/interfaces file and using the ifup command.

Christian Wells