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Creating intercluster interfaces on all nodes

Clusters communicate with each other through logical interfaces (LIFs) that are dedicated to intercluster communication. You must create an intercluster LIF on each node in each cluster that will be in a cluster peer relationship.

Before you begin

You should know which subnet and ports, and optionally which IP addresses, that you plan to use for the intercluster LIFs.

About this task

This procedure assumes you are creating peer relationships among three clusters named A, B, and C.

Steps

  1. On Cluster A, navigate to the Network Interfaces window:
    1. Expand the Cluster hierarchy in the left navigation pane.
    2. Click Configuration > Network.
    3. In the Network window, select the Network Interfaces tab.
  2. Create an intercluster LIF on one node in the cluster:
    1. Click Create.
    2. In the Create Network Interface dialog box, specify a name for the intercluster LIF.
      Example
      You can use "icl01" for the intercluster LIF on the first node and "icl02" for the intercluster LIF on the second node.
    3. Select Intercluster Connectivity as the interface role.
    4. Select the subnet that will be used for intercluster communication on this cluster.
      By default, an available IP address in that subnet is automatically selected after you click Create.
    5. If you want to control which IP address the node uses for intercluster communication, select Use this IP Address and type the address.
    6. In the Ports area, expand the specific node you are configuring, and select the port that you decided earlier to use for this node.
    7. If you decided earlier not to share ports with data communication, confirm that the selected port displays "0" in the Hosted Interface Count column.

      The Create Network Inteface dialog box
    8. Click Create.
  3. Repeat the previous step for each node in the cluster.
    Each node in Cluster A has an intercluster LIF.
  4. Record the IP addresses of the intercluster LIFs so that you can use them later when you create peer relationships with other clusters:
    1. On the Network Interfaces tab, in the Role column, click Column filter icon, clear All, and select Intercluster.
      The window displays only intercluster LIFs.
    2. Record the IP addresses listed in the IP Addresses column, or leave the display open so that you can locate the IP addresses later.

      Network Interfaces tab showing two intercluster LIFs
      You can click the column display icon (Icon for show or hide column) to hide columns that you do not want to display.
  5. Repeat the entire procedure for Cluster B.
    Each node in Cluster B has an intercluster LIF.
  6. Repeat the entire procedure for Cluster C.
    Each node in Cluster C has an intercluster LIF.

Result

All nodes in Cluster A, Cluster B, and Cluster C have intercluster LIFs that can all communicate with each other.