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This topic describes Port link aggregation groups (LAGs), steps through how to add a Port to a LAG, and how to convert a non-LAG Port to a LAG Port. A LAG bundles physical ports to create a single data path, where the traffic load is distributed among the ports to increase overall connection reliability. This feature provides aggregate bandwidth, enhanced resiliency, and efficient use of resources. Other terms used to describe a LAG include port trunking, link bundling, and channel bonding. When you create a new Port that is 10 Gbps or higher, enabling the allows you to use it in a LAG. We recommend that you enable LACP even if you only require a single Port at that time. This prevents service interruption if later you decide to enable LACP on the Port. You can combine up to 8 physical Ports into a single LAG, and the Port price will update dynamically based on any additional Ports. All Ports within the LAG use the same Layer 2 MAC address. For more information about how to create a Port, see Creating a Port. Multiple Ports in a LAG configuration with multiple physical cross-connects reduce potential single points of failure that will stop the network from working if they go down. For example, networks using small form-factor pluggable (SFP) ports or optics. This image shows the overall design of a LAG configuration:

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Port LAG specifications

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Port LAG restrictions

  • Multi-Chassis Link Aggregation (MC-LAG) across multiple devices is not supported.
  • The LAG speed must be 10 Gbps or higher. 1 Gbps Ports are not supported in LAGs.
  • LACP System Priority must be set to a value higher than 0 on your equipment for LACP to function correctly.

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Bandwidth limitations

The available total bandwidth of a LAG is the sum of all Ports in the LAG. Virtual Cross Connect (VXC) bandwidth is still limited to the maximum bandwidth of any single Port in the LAG. However, local Ports within the same metro area as Internet Exchange (IX) services don’t have this limitation. You can configure IX services to use the total amount of bandwidth capacity from all members in a LAG.

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Configuring a LAG pair for diversity

When you create a new LAG, you can make it diverse from an existing LAG or create a diverse pair of LAGs at the same time, with one in each diversity zone. For more information about Port diversity, see Port Diversity.
It is not possible to change a LAG diversity zone after placing the order. To do this, you must cancel and re-order the LAG.
To configure a LAG pair for diversity
  1. Log in to the and choose Services.
  2. Click Add Services, then select Port. The Create Port page opens. Complete the sections on this page to configure your Port. The order summary updates as you make selections. On wider screens, the summary is displayed in a panel on the right. On narrower screens, it is displayed in a bar at the bottom of the page that you can expand.
  3. In the Details section, specify a Port Name, then in the Location section, select a data center location for the Port.
    Use the Search field to find a location by metro name, country, data center name, or provider name. You can also search by address details, such as a street, city, state, or postcode. Alternatively, browse the region tabs, then select a location.
  4. In the Provider section, select a data center provider and data center.
    Only providers and data centers available at your selected location are listed. If your search term in the Location section matches a specific provider or data center, the Provider list narrows to that provider. If the term matches only a metro or country, the Provider list shows every provider available at that location.
  5. In the Configuration section, specify these fields:
    • Port Speed — Select the required Port speed. Port capacity depends on location and service availability. Ensure that your equipment is capable of interfacing with the selected speed. If Port diversity is available at the location and speed you select, a Diversity Option drop-down list is enabled. If Port diversity is not available at your preferred location, contact a Megaport Sales representative for more information.
    • LACP & LAG Ports — To enable LACP, the Port speed must be 10 Gbps or higher. Enable LACP on Port to add the Port as a member of a LAG, then select the number of Ports in the LAG, up to a maximum of 8.
  6. In the Pricing section, select a Contract Term and set Contract Renewal. For more information, see Port Pricing and Contract Terms.
  7. In the Add-ons section, review the following:
    • Cross Connect — If the location has Cross Connect availability, a option appears in the Add-ons section. Enable the Cross Connect add-on to add a Cross Connect to your Port order. The monthly rate and one-time fee for the Cross Connect appear on the card. For more information, see Ordering a Cross Connect.
  8. In the Resource Tags section, add any tags you want to apply.
    • Resource Tags — You can use resource tags to add your own reference metadata to a Megaport service.
      To add a tag:
      1. Click Add Tags.
      2. Click Add New Tag.
      3. Enter details into the fields:
        • Key — String, maximum length 128 characters. Valid values are a-z 0-9 _ : . / \ -
        • Value — String, maximum length 256 characters. Valid values are a-z A-Z 0-9 _ : . @ / + \ - (space)
      4. Click Save. If you already have resource tags for that service, you can manage them by clicking Manage Tags.
      Never include sensitive information in a resource tag. Sensitive information includes commands that return existing tag definitions and information that will identify a person or company.
  9. Review the order summary.
    The summary shows Port Diversity enabled and the diversity zones for the LAGs. The monthly charge includes both LAGs. If a Cross Connect has been ordered, the summary also shows the monthly rate and the one-time fee for the Cross Connect.
  10. Click Add Port.
    The newly created LAGs, their diversity zones, and the monthly charges are added to your cart.
  11. Click Review Order to deploy the new LAGs now, or click Save to save the configured LAGs before placing the order.
  12. Click Order Now on the pop-up window to start provisioning your new LAGs. After the LAGs are provisioned, Megaport generates a Letter of Authorization (LOA) specifying the demarcation point to be applied to your service.
  13. Click Download LOA next to the new LAGs on the Services page.
    Megaport will also send you the LOA PDF by email.
  14. Provide the LOA to your data center operator to establish the physical Cross Connect from your network device to your new Port.
The cost of a new cross connection and any related VXC fees are the responsibility of the customer, as outlined in Megaport’s Global Services Agreement.
After the LAGs have been provisioned and deployed, you have access to the Megaport network and can start adding Virtual Cross Connects (VXCs) to the LAG. For more information about adding VXCs, see Creating a VXC.

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Converting a non-LAG Port

To convert a non-LAG Port to a LAG, send a request to Megaport Support to manually convert the Port. Make sure to identify the Port in your request.
Last modified on September 21, 2026