AudioCodes Mediant 800B - Configuring the HA Devices; Step 1: Configure the First Device

Version 7.2 809 Mediant 800B Gateway & E-SBC
User's Manual 42. HA Configuration
42.1.2 Configuring the HA Devices
To initially configure the two devices comprising the HA system, do the following
procedures listed in chronological order:
1. Configuring the first device for HA (see 'Step 1: Configure the First Device' on page
809)
2. Configuring the second device for HA (see 'Step 2: Configure the Second Device' on
page 811)
3. Activating HA on the devices (see 'Step 3: Initialize HA on the Devices' on page 812)
Note:
• The HA feature is available only if both devices are installed with a License Key
that includes this feature. For installing a License Key, see 'License Key' on page
857.
• 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 807.
• 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.
42.1.2.1 Step 1: Configure the First Device
The first stage is to configure the first device for HA, as described in the following
procedure:
Note: During this stage, make sure that the s
econd device is powered off or
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
45.