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All About Proxmox Port Aggregation

Port aggregation is also known as Link Aggregation or Port Trunking. It is a networking technique that lets us combine multiple physical network ports into a single logical connection. This results in increased bandwidth, fault tolerance, and load balancing.

In relation to Proxmox VE, port aggregation is used to boost network performance and reliability for VMs and containers.

Let’s take a look at how port aggregation works in Proxmox VE:

• In a Proxmox VE environment, we may have one or more physical NICs available on our Proxmox host server. Additionally, we can use these NICs to connect the host to our network.
• Port aggregation creates a logical bond interface that groups two or more physical NICs together into a single virtual network interface. Furthermore, this bond interface presents itself to the OS and VMs as a single network interface with aggregated bandwidth. Here are the different bond modes:
  • Load Balancing:

    This mode distributes network traffic across the bonded NICs. It requires network switch support for Link Aggregation Control Protocol.
  • Active-Backup (Failover):

    Here, one NIC is active, while the others are on standby. If the active NIC fails, one of the standby NICs takes over.
  • Round Robin:

    Traffic is distributed sequentially across the bonded NICs in this mode. This helps balance the load without requiring LACP support.
  • Broadcast:

    Here, traffic is sent to all NICs in this mode. This works when all NICs have to receive the same traffic.

How to Configure Port Aggregation in Proxmox VE

1. First, open the Proxmox web interface and head to the Datacenter or Cluster section.
2. Then, choose the Proxmox host for which we want to configure port aggregation.
3. Furthermore, head to Network or Network Configuration section and create a bond interface.
4. Now, we have to mention the bond mode and add the physical NICs to the bond.
5. Then, configure IP settings and other network parameters for the bond interface.
6. Additionally, we have to assign the bond interface to our VMs or containers.

At the end of the day, Port aggregation in Proxmox VE is a key feature. It optimizes network performance and ensures network reliability in virtualized environments.

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Conclusion

In brief, our Support Experts introduced us to Proxmox Port Aggregation.