Alto MS Series User Manual Page 102

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98 Getting Started Guide
Configure an Active/Passive Pair Set Up High Availability
Step 7 Set up the data link connection (HA2) and
the backup HA2 connection between the
devices.
1. In Device > High Availability > General, edit the Data Link
(HA2)
section.
2. Select the interface for the data link connection.
3. Select the
Transport method. The default is ethernet, and will
work when the HA pair is connected directly or through a
switch. If you need to route the data link traffic through the
network, select
IP or UDP as the transport mode.
4. If you use IP or UDP as the transport method, enter the IP
address and netmask.
5. Verify that
Enable Session Synchronization is selected.
6. Select
HA2 Keep-alive to enable monitoring on the HA2 data
link between the HA peers. If a failure occurs based on the
threshold that is set (default is 10000 ms), the defined action will
occur. For active/passive configuration, a critical system log
message is generated when an HA2 keep-alive failure occurs.
Note You can configure the HA2 keep-alive option on both
devices, or just one device in the HA pair. If the option is
only enabled on one device, only that device will send the
keep-alive messages. The other device will be notified if a
failure occurs.
7. Edit the
Data Link (HA2 Backup) section, select the interface,
and add the IP address and netmask.
Step 8 Enable heartbeat backup if your control
link uses a dedicated HA port or an
in-band port.
You do not need to enable heartbeat
backup if you are using the management
port for the control link.
1. In
Device > High Availability > General, edit the Election
Settings
section.
2. Select
Heartbeat Backup.
The heartbeat backup link is used for transmitting redundant
heartbeats and hello messages. To allow the heartbeats to be
transmitted between the devices, you must verify that the
management port across both peers can route to each other.
Connect and Configure the Devices (Continued)
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