Backup; Manual Options - Motorola 2200 Administrator's Handbook

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Backup

The purpose of Backup is to provide a recovery mechanism in the event that the primary connection fails. A
failure can be either line loss, for example by central site switch failure or physical cable breakage, or loss
of end-to-end connectivity. Detection of one of these failures causes the Gateway to switch from using the
primary DSL WAN connection to an alternate gateway on the Ethernet LAN. In the event of a loss of primary
connectivity you have the option of switching back to the primary circuit automatically once it has recovered
its connection.
A typical application would be to have a LAN connection from your Gateway to another Gateway that has, for
example, another DSL modem or Gateway connection to the Internet, and designating the second gateway
as the backup gateway. Should the primary WAN connection fail, traffic would be automatically redirected
through your alternate gateway device to maintain Internet connectivity.

Manual options

If you choose manual, you can also choose Auto Recovery. If you chose Auto Recovery, enter the number
of minutes that the system should wait before it assumes that a connection has been re-established. This
allows you to be sure that the primary WAN connection is well re-established before the Gateway switches
back to it from the backup mode. Minimum value is one minute.
Backup
When you click the
appears.
Select either manual or automatic from the pull-down menu.
•
If you choose manual, you will have to switch manually to your
alternate gateway in the event of a connection failure.
•
For fail-over purposes, choose automatic.
•
Check the Enable Backup Gateway checkbox.
•
From the pull-down menu, select the Interface
Type to which you want to direct the backup con-
nection. If you have defined multiple VCCs, you
can choose a secondary one. Otherwise, to
backup to an IP device on the LAN, choose IP
Address.
The screen expands to allow you to enter an IP
address of your Backup Gateway.
Click the
and in the resulting page, click the
Save and Restart
link, the Backup Options page
Submit
button; click the Alert icon,
link.
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