AudioCodes Mediant 800 - Step 2: Configure the Second Device

CHAPTER41 HA Configuration
Mediant 800 Gateway & E-SBC | User's Manual
3. If the connection is through a switch, the packets of both interfaces should generally be
untagged. To do this, open the Ethernet Devices table (see Configuring Underlying Ethernet
Devices ), and then configure the 'Tagging' parameter to Untagged for the Ethernet Device
assigned to the Maintenance interface. The figure below shows an example (highlighted) where
VLAN 2 is configured as the Native (untagged) VLAN ID of the Ethernet Group "GROUP_2":
4. Set the Ethernet port Tx / Rx mode of the Ethernet Group used by the Maintenance interface
(see Configuring Ethernet Port Groups). The port mode depends on the type of Maintenance
connection between the devices, as described in Network Topology Types and Rx/Tx Ethernet
Port Group Settings.
5. Configure HA parameters:
a. Open the HA Settings page (Setup menu > IP Network tab > Core Entities folder > HA
Settings):
b. In the 'HA Remote Address' field, enter the Maintenance IP address of the second
device.
c. 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 Device Switchover upon
Failure.
6. Burn the configuration to flash without a reset.
7. Power down the device.
8. Configure the second device (see Step 2: Configure the Second Device).
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 (Step 1: Configure the First Device).
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