Avaya 3.7 User Manual

4. From the Servers list, select a specific secondary end-point.

5. Use 

 for performing specific management tasks.

When finished, click Save to save your work.

Tunnels are used to protect VPN traffic that moves through the public networks. The endpoints 
for tunnels are located in VSUs. Resilient Tunnels are used for backing up a specific primary 
tunnel. Up to three resilient tunnels can be created to backup a specific security gateway. VSUs 
can report tunnel switching to a common SNMP manager (See 

).

Note:

Resilient tunnels are configurable on VSUs running VPNos 3.x.

 illustrates a simple example. San Francisco LAN has two gateways to the WAN. The 

high-speed route is used by the primary tunnel, and the low-speed route is used by the resilient 
tunnel. If the circuit in which VSU

B

 is located goes out of service, traffic automatically switches 

to VSU

C

. Once VSU

B

 is back in-service, VPN traffic then switches to the primary tunnel. The 

switching is controlled by VSU

A

 which is located in the Tokyo LAN.

Edit

Use this command to edit the server with the Add 
Directory Server dialog box.

Move Up

Click this button to move the server higher in the list.

Move Down

Click this button to move the server lower in the list.

Delete

Click this button to remove the server from the list.