Step 3: Initialize Ha On The Devices; Configuration While Ha Is Operational - AudioCodes Mediant 800B User Manual

41.1.2.3 Step 3: Initialize HA on the Devices

Once you have configured both devices for HA as described in the previous sections,
follow the procedure below to complete and initialize HA so that the devices become
operational in HA. This last stage applies to both devices.

To initialize the devices for HA:
1. Cable the devices to the network.
Note: You must connect both ports (two) in the Ethernet Group of the Maintenance
interface to the network (i.e., two network cables are used). This provides 1+1
Maintenance port redundancy.
2. Power up the devices; the redundant device synchronizes with the active device and
updates its configuration according to the active device. The synchronization status is
indicated as follows:
•
Active device: The Web interface's Monitor page displays "Synchronizing" in the
'HA Status' field.
When synchronization completes, the redundant device resets to apply the received
configuration and software.
When both devices become operational in HA, the HA status is indicated as follows:
•
Both devices: The Web interface's Monitor page displays "Operational" in the 'HA
Status' field.
•
Active device: The Status LED is lit green - slow-flash, steady on, and then slow
flash.
•
Redundant device: The Status LED is lit green - slow-fast flash.
3. Access the active device with its' OAMP IP address and configure the device as
required. For information on configuration done after HA is operational, see
'Configuration while HA is Operational' on page 754.
41.2

Configuration while HA is Operational

When the devices are operating in HA state, subsequent configuration is as follows:

All configuration, including HA, is done on the active device only.

Non-HA configuration on the active device is automatically updated on the redundant
device (through the Maintenance interface).

HA-related configuration on the active device is automatically updated on the
redundant device:
•
Maintenance interface:
♦
♦
♦
•
'Preempt Mode' parameter (requires a device reset).
•
'Preempt Priority' parameter is set for the active device.
User's Manual
Modified Maintenance interface address of the active device: The address is
set as the new 'HA Remote Address' value on the redundant device.
Modified 'HA Remote Address' value on the active device: The address is
set as the new Maintenance interface address on the redundant device
(requires a device reset).
Modifications on all other Maintenance interface parameters (e.g., Default
Gateway and VLAN ID): updated to the Maintenance interface on the
redundant device.
Mediant 800B Gateway & E-SBC
754 Document #: LTRT-10298