Step 2: Configure The Second Device - AudioCodes Mediant 4000 SBC User Manual

CHAPTER 32 HA Configuration
b. In the 'HA Remote Address' field, enter the Maintenance IP address of the second
device.
c. (Optional) Enable the HA Preempt feature by configuring the 'Preempt Mode' parameter to
Enable, and then setting the priority level of the device in the 'Preempt Priority' field. Make
sure that you configure different priority levels for the two devices. Typically, you would
configure the active device with a higher priority level (number) than the redundant device.
The only factor that influences the configuration is which device has the greater number;
the actual number is not important. For example, configuring the active with 5 and
redundant with 4, or active with 9 and redundant with 2 both assign highest priority to the
active device. Configuring the level to 10 does not cause a switchover upon Ethernet
connectivity loss. For more information on the feature, see
Failure.
5. Burn the configuration to flash without a reset.
6. Power down the device.
7. Configure the second device (see

Step 2: Configure the Second Device

Once you have configured the first device for HA, you can configure the second device for HA. As
the configuration of the second device is similar to the first device, the following procedure briefly
describes each step. For detailed configuration such as the path to the Web configuration pages,
refer to the section on configuring the first device
During this stage, ensure that the first device is powered off or disconnected from the
network.
➢
To configure the second device for HA:
1. Connect to the device in the same way as you did with the first device.
2. Configure the same OAMP, Media, and Control interfaces as configured for the first device.
3. Configure a Maintenance interface for this device. The IP address must be different to that
configured for the Maintenance interface of the first device. The Maintenance interfaces of the
devices must be in the same subnet.
4. Configure the same Ethernet Groups and VLAN IDs of the network interfaces as configured for
the first device.
5. Configure the same Ethernet port Tx / Rx mode of the Ethernet Group used by the
Maintenance interface as configured for the first device.
6. Configure HA parameters in the HA Settings page:
a. In the 'HA Remote Address' field, enter the Maintenance IP address of the first device.
Step 2: Configure the Second
(Step 1: Configure the First
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Mediant 4000 SBC | User's Manual
Device Switchover upon
Device).
Device).