Setting Up High Availability (HA) Mode

Use the following procedure to perform an HA configuration on a primary and secondary Oracle® Enterprise Session Border Controller. You must have an HA license to configure HA.

Note:

For HA environments, running setup on the secondary system is also required to set the wancom0 address and secondary targetname. The targetname must match the same secondary targetname specified on the primary system.

To configure the primary High Availability (HA):

In Superuser mode, enter run setup and press Enter.
```
ORACLE# run setup
```
Note:
The Installation Wizard can also be invoked by the run setup quiet command which enables a less verbose presentation.

The following displays.
```
=========================================================
-----------------------------------------------------------
Thank you for purchasing the Oracle  SBC. The following
short wizard will guide you through the initial set-up.
-----------------------------------------------------------
'?' = Help; '.' = Clear; 'q' = Exit
CONFIGURATION
WARNING: Proceeding with wizard will result in existing configuration being erased.
  Erase config and proceed (yes/no) [no]               :
=========================================================
```
You can use:
- ‘?’ key to obtain query-specific help
- ‘.’ key to clear the field of the current setting.
- ‘q’ key to exit the wizard at any location in the setup process. Initiating the q displays the following prompt:
```
Discarding changes and quitting wizard. Are you sure? [y/n]?:
```
Enter y to discard any changes and quit the installation wizard. The root prompt displays.

A “Warning” displays stating that using the wizard can overwrite (erase) the existing running configuration. If you want to back out of the setup process and not overwrite the current running configuration, you can enter q or enter No at the Erase config and proceed prompt. The root prompt displays.

Enter yes at the prompt to continue the setup process, and press Enter.

Erase config and proceed (yes/no) [no] 	:yes

The following displays.

=========================================================
Configuration will be backed up as bkup_setup_wizard_<MMM>_<DD>_<YY>_<HH>_<MM>_<SSS>.gz
'-' = Previous; '?' = Help; '.' = Clear; 'q' = Exit
GUI ACCESS
If you want to allow GUI to access this SBC, enable this setting
Enable Web GUI (yes/no) [yes] 	:
=========================================================

You can use:

‘-’ key to navigate to the previous step in the setup process, if required, and change your response.

Enter yes or no to enable or disable the Web GUI and press Enter.

Enable Web GUI (yes/no) [yes] 	:yes

The following displays.

=========================================================
WEB GUI MODE
Choose which mode to enable for the web GUI
  Web GUI Mode
     1 - basic
     2 - expert
    Enter choice [1 - basic] 	:
=========================================================

Enter 1 to enable Basic Mode and Expert Mode, or enter 2 to enable Expert Mode only. Press Enter.
```
Enter choice [1 - basic] 	:1
```
If you enable both Basic and Expert Modes (selection 1), after logging into the Web GUI, the Basic Mode screen displays by default. You can switch to Expert Mode if you do not make any changes in Basic Mode, using the Switch to Expert button. If you enable Expert Mode only (selection 2), no button displays to switch to Basic Mode.

The following displays.
```
=========================================================
HIGH AVAILABILITY
This SBC may be a standalone or part of a highly available redundant pair.
  SBC mode
     1 - standalone
     2 - high availability
    Enter choice [1 - standalone] 	:
=========================================================
```

Enter 2 to configure an HA device, press Enter.

It is highly recommended that you configure high availability (HA) using this Installation Wizard.

Enter choice [1 - standalone] 	:2

The following displays.

=========================================================
If this SBC is the primary, enter the configuration. If it is the secondary, you can import settings from the primary.
SBC role
	1. primary
	2. secondary
Enter choice [1-primary]		:
=========================================================

Enter 2 and press Enter.

Enter choice [1-primary]		:2

The following displays:

=========================================================
SBC SETTINGS
Unique target name of this SBC [<NN-ESD name>] 	:
=========================================================

Enter a unique target name for the NN-ESD (or keep the default in [ ]), and press Enter.
```
Unique target name of this SBC [NNESD1] 	:NNESD2
```
The following displays.
```
=========================================================
SBC SETTINGS
IP address on management interface [<SBC IP address>] :
=========================================================
```
Note:
The Installation Wizard provides default IP addresses for the HA primary and secondary Oracle® Enterprise Session Border Controllers (Redundancy interface address and Peer IP address ). These default addresses are link-local addresses as specified in RFC 3927, Dynamic Configuration of IPv4 Link-local addresses.

Enter the IP address on the management interface of the secondary Web Server (or keep the default in [ ]), and press Enter.

IP address on management interface [<SBC IP address>] 	: 164.30.85.52

The following displays.

Subnet mask [255.255.0.0] :
=========================================================

Enter the subnet mask of the secondary Web Server (or keep the default in [ ]), and press Enter.

Subnet mask [255.255.0.0] 	: 255.255.0.0

The following displays.

=========================================================
Gateway IP address [164.30.0.1] 	:
=========================================================

Enter the gateway IP address of the secondary Web Server (or keep the default in [ ]), and press Enter.

Gateway IP address [<SBC gateay address>] 	: 164.30.0.1

The following displays.

=========================================================
AUTOMATIC CONFIGURATION
Acquire config from the Primary (yes/no) [yes]	:
=========================================================

Enter y for the secondary Web Server to acquire the configuration from the primary Web Server during failover, and press Enter.

Acquire config from the Primary (yes/no) [yes]	y

The following displays.

=========================================================
-- Summary view -------------------------------------
GUI ACCESS
  1: Enable Web GUI (yes/no) 	: yes
WEB GUI MODE
 2 : Web GUI Mode 	: basic
HIGH AVAILABILITY
 3 : SBC mode 	: high availability
 4 : SBC role 	: secondary
SBC SETTINGS
 7 : Unique target name of this SBC 	: NNESD2
 8 : IP address on management interface 	: 164.30.85.52
 9 : Subnet mask 	: 255.255.0.0
 10: Gateway IP address 	: 164.30.0.1
AUTOMATIC CONFIGURATION
 11: Acquire config from the Primary (yes/no) 	: yes
PEER CONFIGURATION
 13: Peer target name 	: N/A
Enter 1 - 16 to modify, 'd' to display summary, 's' to save, 'q' to exit. [s]:
=========================================================

Enter s to save the configuration and press Enter. Or Select an item number from the summary view to modify the value for that item. Or Enter q to exit the installation wizard.

Enter 1 - 16 to modify, 'd' to display summary, 's' to save, 'q' to exit. [s]	:s

The following displays.

=========================================================
Saving changes and quitting wizard. Are you sure?  [y/n]?	:
=========================================================

Enter y to verify you want to save the configuration and press Enter.

The following displays.

=========================================================
Running configuration is backed up as 'bkup_setup_wizard_Mar__7_13_58_26_545.gz'
******************************************************
Deleting configuration
Erase-Cache received, processing.
waiting 1200 for request to finish
Request to 'ERASE-CACHE' has Finished,
Erase-Cache: Completed
Request to 'RESTORE-CONFIG' has Finished,
Restore Backup Completed Successfully
checking configuration
Save-Config received, processing.
waiting for request to finish
Request to 'SAVE-CONFIG' has Finished,
Save complete
Currently active and saved configurations do not match!
To sync & activate, run 'activate-config' or 'reboot activate'.
---------------------------------------------------------------------
Verification successful! No errors nor warnings in the configuration
Activate-Config received, processing.
waiting for request to finish
Request to 'ACTIVATE-CONFIG' has Finished,
Activate Complete
-- Saved configuration. ----------------------------
GUI ACCESS
	1: Enable Web GUI (yes/no) 	: yes
WEB GUI MODE
 2 : Web GUI Mode 	: basic
HIGH AVAILABILITY
 3 : SBC mode 	: high availability
 4 : SBC role 	: secondary
SBC SETTINGS
 7 : Unique target name of this SBC 	: NNESD2
 8 : IP address on management interface 	: 164.30.85.52
 9 : Subnet mask 	: 255.255.0.0
 10: Gateway IP address 	: 164.30.0.1
AUTOMATIC CONFIGURATION
 11: Acquire config from the Primary (yes/no) 	: yes
PEER CONFIGURATION
 13: Peer target name 	: N/A
You may access the GUI via http://164.30.85.52:80/ after reboot.
=========================================================

You have completed the Installation Wizard. To complete your HA setup, run the Installation Wizard on your secondary system as well.

For more information about using the Web GUI, see the Net-Net Enterprise Session Director-Web GUI User Guide.

You can configure the Web Server for using Transport Layer Security (TLS). You can also manage the Web Server using specific commands. For more information about configuring TLS on the Web Server, and for information about Web Server management commands, see Chapter 22, Web Server TLS Configuration and Management Commands.