1. Hardware Installation and Maintenance Guide
  2. Maintenance
  3. Standby Mode for HA Nodes
  4. Replacing an NIU in an HA Node

Replacing an NIU in an HA Node

Refer to NIU/TCU Removal and Replacement on page 6-79. Before replacing the NIU in an HA node, refer to these steps.

  1. Prepare all equipment connected to the NIU for the NIUs removal from the network.
  2. Force the system to standby state as described in the previous section.
  3. Log in to the ACLI via a console connection.
  4. Reboot the system from the ACLI.

    When this Acme Packet 6300/6350 returns online, it will synchronize the HA state with the active HA node using the new NIU. You can confirm the system state by using the show health command.