Ha Maintenance; Maintenance Of Redundant Device; Replacing A Failed Device; Initiating An Ha Switchover - AudioCodes Mediant 4000 SBC User Manual

User's Manual
34

HA Maintenance

This section describes HA maintenance procedures.
34.1

Maintenance of Redundant Device

The only interface that is operational on the redundant device is the Maintenance interface.
The following protocols can be used for maintenance purposes for this interface:

Syslog: To receive Syslog messages from the redundant device, make sure that you
have configured a valid VLAN and routing rule from the Maintenance network to the
Syslog server.

Telnet: A Telnet server is always available on the redundant device (even if disabled
by configuration).
The active device runs the above maintenance protocols on its' OAMP interface.
34.2

Replacing a Failed Device

If you need to replace a faulty device, the new device must be configured exactly as the
second device, as described in ''Configuring the HA Devices'' on page 607.
34.3

Initiating an HA Switchover

You can initiate a switchover from the Active to Redundant device.
Note:
unavailable.

To perform a switch-over:
1. Open the High Availability Maintenance page:
•
Toolbar: Click the Actions button, and then from the drop-down menu, choose
Switchover.
•
Navigation tree: Setup menu > Administration tab > Maintenance folder > High
Availability Maintenance.
2. Click Switch Over; a confirmation box appears requesting you to confirm.
3. Click OK.
Version 7.2
When performing an HA switchover, the HA mode becomes temporarily
Figure 34-1: Performing a Device HA Switchover
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34. HA Maintenance
Mediant 4000 SBC