The main thing to realize is that a team device is not trying to replicate or mimic a bonded interface. Similar a bonded interface, the purpose of a team device is to provide a mechanism to group multiple NICs (ports) into one logical one (teamdev) at the L2 layer. For other modes, please see the kernel documentation.

This creates a bonded interface named bond1 with mode active-backup. Ip link add bond1 type bond miimon 100 mode active-backup Use a bonded interface when you want to increase your link speed or do a failover on your server. The behavior of the bonded interface depends on the mode generally speaking, modes provide either hot standby or load balancing services. The Linux bonding driver provides a method for aggregating multiple network interfaces into a single logical 'bonded' interface. This creates a bridge device named br0 and sets two TAP devices ( tap1, tap2), a VETH device ( veth1), and a physical device ( eth0) as its slaves, as shown in the diagram above. Use a bridge when you want to establish communication channels between VMs, containers, and your hosts. It also supports STP, VLAN filter, and multicast snooping. It's usually used for forwarding packets on routers, on gateways, or between VMs and network namespaces on a host. It forwards packets between interfaces that are connected to it. For other interfaces like tunnel, please see An introduction to Linux virtual interfaces: Tunnels BridgeĪ Linux bridge behaves like a network switch. VXLAN (Virtual eXtensible Local Area Network)Īfter reading this article, you will know what these interfaces are, what's the difference between them, when to use them, and how to create them.This post covers the following frequently used interfaces and some interfaces that can be easily confused with one another: A list of interfaces can be obtained using the command ip link help. Anyone with a network background might be interested in this blog post. There is no code analysis, only a brief introduction to the interfaces and their usage on Linux. In this post, I will give a brief introduction to all commonly used virtual network interface types. Linux has rich virtual networking capabilities that are used as basis for hosting VMs and containers, as well as cloud environments.

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