Create a Port Channel

Before you begin

The MTU and egress configuration must be same on all ports prior to configuring a LAG. If the Egress configuration is different, take the following steps:
  1. Remove the desired ports from the Egress they are associated with.
  2. Create the LAG and add the LAG back into the appropriate Egress.

About this task

After you create a port channel, it is available for selection when you create ingress group and egress.
Note

Note

  • The fields that are available for creating a port channel vary by the device type you are configuring.
  • LACP LAG is supported for 9920.
  • For SLX devices, static LAG type is selected by default.
  • All configurations are reverted when a port channel deployment fails. However, a LAG is created and deleted immediately, and the events are captured in the device logs.

Procedure

  1. In the Navigation menu, select Device Inventory.
  2. In the Devices page, click anywhere in the required device row except the Actions column (Actions column icon) to proceed to the device Overview page.
  3. In the Device Config menu, select Policies and Configuration > Port Channels.
  4. Select Add Port Channel.
  5. (MLX only) In the Port Channel Name field, enter a unique name for the port channel.
  6. (9920 and SLX) In the Port Channel ID field, enter a unique numeric ID.
    No two port channels can have the same ID.
  7. In the Lag Speed field, select the speed for the ports that you will select in step 9.
  8. In the Description field, provide enough information to help you identify the port channel.
  9. In the Ports field, select at least one port from the list.
    The ports in the list will be of the speed that you selected in step 7. A port can be a member of only one port channel. Ports that are not in the list are either already added to another port channel or are operating at a speed that is different from the selection in step 7.
  10. (SLX and 9920 only) In the MTU field, enter the maximum transmission unit for packets that pass through the ports in the channel.
    (SLX only) If the Port Speed is configured as auto, but not connected, the Port Speed must be updated manually to refresh the list of ports.
  11. (MLX only) In the Primary Port field, select one of the member ports.
  12. In the Minimum Link field, select or enter the minimum number of interfaces that the port channel requires to be active.
  13. (9920 only) In the Load Balance Algorithm field, select a load-balancing method or select None.
    • src-dst-ip-l4-port: The source and destination IP Layer 4 ports method is the default load-balancing method.
    • src-dst-ip-l4-port-tid: The source and destination IP Layer 4 ports method with tunnel ID.
  14. Select Enable to change the port channel admin status to Up.
    When you select this field, you initiate the no shutdown command on the device, which changes the admin and operating status. When the field is not selected, the shutdown command runs on the port channel and the admin status changes to Down.
  15. Select the Lag Type.
    • STATIC
    • LACP
  16. (MLX and SLX only) Select Loopback to configure the port channel as a loopback interface.
    A loopback is a virtual interface that a device uses to communicate with itself. A loopback interface cannot be used as an egress interface.
  17. Select Save.
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