Link Aggregation

Configuration > Networking > Link Aggregation

The Link Aggregation tab displays channel group and link aggregation details for appliances selected in the appliance tree.

Link aggregation combines data from multiple physical or virtual interfaces into a channel group, which provides a single high-speed link. Configuring link aggregation adds failover redundancy to the interfaces in the channel group.

IMPORTANT: If you aggregate interfaces that are currently in use, those interfaces are removed from deployment before aggregation occurs. When attempting to apply channel group additions or changes on the Link Aggregation dialog box, a confirmation dialog box opens that gives you the choice to proceed with aggregating the interfaces or to cancel your link aggregation changes.

The table on the Link Aggregation tab displays the following information:

Configure Link Aggregation

To add, change, or delete channel groups for an appliance, click the edit icon in the applicable table row on the Link Aggregation tab.

The Link Aggregation dialog box opens.

The Channel Groups Status column displays the current status of the channel group (up, down, or pending). Pending status indicates that the link aggregation configuration has not yet been applied, and the state of the link aggregation is not known at this time.

Add or Modify a Channel Group

To add a channel group, perform the following steps:

NOTE: To modify a channel group, click the edit icon next to the channel group. The Modify link aggregation dialog box opens. Change the fields as described below, and then click Apply. You cannot modify an existing channel group name, but you can change the other settings.

1. Click Add on the Link Aggregation dialog box.

   The Add link aggregation dialog box opens.

   

2. Complete the following fields:

   Column	Description
   Channel Group (interface) name	Select a name for the channel group from the drop-down list (blan0, blan1, bwan0, or bwan1).
   Interfaces to be grouped	From the drop-down lists, select one, two, three, or four interfaces to include in the channel group. IMPORTANT: If you aggregate interfaces that are currently in use, those interfaces are removed from deployment before aggregation occurs. When you click the Apply button on the Link Aggregation dialog box, a confirmation dialog box opens that gives you the choice to proceed with aggregating the interfaces or to cancel your link aggregation changes.
   MTU	Specify the MTU size (in bytes) to be applied to all interfaces in the group. The default size is 1500 bytes.
   LACP mode	Select this check box to enable LACP for the channel group. By default, this check box is not selected.
   LACP rate	Select slow or fast from the drop-down list. The default is slow. This field is available only if LACP mode is selected.
   LACP priority	Specify a priority number from 1 to 65535. Priority number is used to break ties with the LACP partner. The lower the number, the higher the priority. The default is 65535. This field is available only if LACP mode is selected.
   Comment	(Optional) Provide additional information about the channel group.

3. Click Add.

Delete a Channel Group

To delete a channel group listed in the table on the Link Aggregation dialog box, click the corresponding delete icon (X) in the last column.

Apply Your Changes

To apply your link aggregation configurations:

1. On the Link Aggregation dialog box, click Apply.

   A confirmation dialog box opens.

   IMPORTANT: If you aggregate interfaces that are currently in use, those interfaces are removed from deployment before aggregation occurs. This confirmation dialog box gives you the choice to proceed with aggregating the interfaces or to cancel your link aggregation changes.

2. Click Aggregate Interfaces to proceed. Otherwise, click Cancel.

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