AudioCodes Mediant 800B User Manual page 717

User's Manual
Notes:
•
The HA feature is available only if both devices are installed with a Software
License Key that includes this feature. For installing a Software License Key, see
''Software License Key'' on page 765.
•
The hardware configuration of the two devices must be identical; they must have
the same amount and type (e.g., E1/T1) of telephony interfaces, housed in the
same chassis slot location.
•
The physical connections of the first and second devices to the network (i.e.,
Maintenance interface and OAMP, Control and Media interfaces) must be
identical. This also means that the two devices must also use the same Ethernet
Groups and the port numbers belonging to these Ethernet Groups. For example, if
the first device uses Ethernet Group 1 (with ports 1 and 2), the second device
must also use Ethernet Group 1 (with ports 1 and 2).
•
Before configuring HA, determine the required network topology, as described in
''Network Topology Types and Rx/Tx Ethernet Port Group Settings'' on page 715.
•
The Maintenance network should be able to perform a fast switchover in case of
link failure and thus, Spanning Tree Protocol (STP) should not be used in this
network; the Ethernet connectivity of the Maintenance interface between the two
devices should be constantly reliable without any disturbances.
39.1.2.1 Step 1: Configure the First Device
The first stage is to configure the first device for HA, as described in the following
procedure:
Note:
disconnected from the network.

To configure the first device for HA:
1. Cable the device to the necessary PSTN interfaces (e.g., E1/T1).
2. Configure the network interfaces, including the default OAMP interface:
a. Connect your PC to the device using a local, direct physical cable connection and
then access the Web interface using the default OAMP network address. For
more information on initial access, see Assigning the OAMP IP Address on page
39.
b. Open the Interface table (Configuration tab > VoIP menu > Network > IP
Interfaces Table).
c. Change the default OAMP network settings to suite your networking scheme.
d. Configure the Control and Media network interfaces, as required.
e. Add the HA Maintenance interface (i.e., the MAINTENANCE Application Type).
Note:
Ethernet Group that is not used by any other network interface. The Ethernet Group is
associated with the Ethernet Device assigned to the interface in the 'Underlying
Device' field.
Version 7.0
During this stage, ensure that the second device is powered off or
Make sure that the Maintenance interface uses an Ethernet Device and
717 Mediant 800B Gateway and E- SBC
39. HA Configuration