Avaya 3.7, Configuration Manual

Page: 212 / 326

Using advanced features
212 Avaya VPNmanager Configuration Guide Release 3.7
4. From the Servers list, select a specific secondary end-point.
5. Use Table 16 for performing specific management tasks.
When finished, click Save to save your work.
Resilient Tunnel
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
Using SNMP to monitor the
device on page 245 ).
Note:
Note:
Resilient tunnels are configurable on VSUs running VPNos 3.x.
Figure 67 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.
Table 16: Servers list commands
Command Description
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.