The Fabric Interconnect cluster can be monitored from the UCS Manager GUI. The GUI provides information of the primary and secondary peers and management IP. Perform the following steps to do this:

1. Log in to UCS Manager.
2. Click on the Equipment tab in the navigation pane.
3. Click on the Fabric Interconnects tab on the navigation pane and the work pane shows the high availability status on the right-hand side pane:

4. The preceding screenshot shows that this is the active primary Fabric Interconnect because the Leadership status is indicated as Primary.

The Fabric Interconnect IP or the shared cluster IP (also known as VIP) can also be changed from the GUI. Follow these steps to configure the IPs:

1. Log in to UCS Manager.
2. Click on the Admin tab on the navigation pane.
3. Click on the All tab on the navigation pane and the General tab on the work pane.

4. Click on Management Interfaces on the work pane.
5. A new pop-up window will show all the IP settings:

6. In the pop-up window, any of the IP addresses can be changed.
7. Cluster and Fabric Interconnect IP addresses can also be changed from the CLI.
8. The cluster status can also be confirmed from CLI commands:

        FI-A# show cluster state

 This command provides the status summary of the cluster as follows:

        A: UP, PRIMARY
        B: UP, SUBORDINATE
        HA READY
        FI-A# show cluster extended-state
        Cluster Id: 0x4690d6b6eafa11e1-0x8ed3547fee9ebb84

        Start time: Mon Nov 12 12:00:16 2012
        Last election time: Mon Nov 12 12:00:17 2012

        A: UP, PRIMARY
        B: UP, SUBORDINATE

        A: memb state UP, lead state PRIMARY, mgmt services state: UP
        B: memb state UP, lead state SUBORDINATE, mgmt services state: UP
        heartbeat state PRIMARY_OK

        INTERNAL NETWORK INTERFACES:
        eth1, UP
        eth2, UP

        HA READY
        Detailed state of the device selected for HA storage:
        Chassis 1, serial: FOX1622G490, state: active
        Chassis 2, serial: FOX1616GSPV, state: active

Certain failure scenarios may impact the Fabric Interconnect high availability configuration. A number of techniques are used to avoid issues. These scenarios occur due to the network failure between the L1, L2 dedicated network.