Bonding

From Proxmox VE

Introduction

Bonding multiple network interfaces (also called NIC teaming or Link Aggregation) lets you achieve either high performance or redundancy. High-speed hardware like Fibre Channel and the associated switching hardware can be quite expensive. By doing link aggregation, two NICs can appear as one logical interface, resulting in double the speed. This is a native Linux kernel feature that is supported by most switches. If you're nodes have multiple Ethernet ports, you can distribute your points of failure by running network cables to different switches and the bonded connection will failover to one cable or the other in case of network trouble.

Aggregated links can improve live-migration delays and improve the speed of replication of data between Proxmox VE Cluster nodes.