Out-of-Path with WCCP Redundant (Active/Active) Appliances : Creating Tunnels
Creating Tunnels
From each appliance, you must create a tunnel to each remote appliance to which it will be sending traffic.
We’ll create tunnels from Appliances A1 and A2 to B. Then we’ll create tunnels from B to A1 and to A2.
w
To create a tunnel from A1 to B
1
From a browser, access Appliance A1.
2
From the menu bar, select Configuration > Tunnels. The Tunnels page appears.
3
Click Add Tunnel.
a
In the Name field, assign a locally significant name for the tunnel.
b
In the Admin field, accept the default value, Up.
c
Leave Auto MTU selected. This allows the tunnel MTU to be discovered and negotiated automatically. When selected, this overrides the MTU setting.
d
In the Local IP field, the Appliance Manager prefills the IP address for the local appliance.
e
In the Remote IP address field, enter the data path IP address of the remote Silver Peak appliance.
f
Leave Auto Max BW selected, so the appliance uses the lower of the two system bandwidths.
If you wanted to configure this manually, then you would deselect Auto Max BW and, in the Max BW field, enter the maximum bandwidth for this tunnel. The value must be less than or equal to the upstream bandwidth of your WAN connection.
g
Leave the Min BW at its default, 32 [Kbps].
h
Click Apply.
i
Save the changes.
The tunnel status won’t change to Up until a tunnel is configured at both ends. That is, until after we configure a tunnel from B to A1.
w
To create a tunnel from A2 to B
1
From a browser, access Appliance A2.
2
From the menu bar, select Configuration > Tunnels. The Tunnels page appears.
3
Click Add Tunnel.
a
In the Name field, assign a locally significant name for the tunnel.
b
In the Admin field, accept the default value, Up.
c
Leave Auto MTU selected. This allows the tunnel MTU to be discovered and negotiated automatically. When selected, this overrides the MTU setting.
d
In the Local IP field, the Appliance Manager prefills the IP address for the local appliance.
e
In the Remote IP address field, enter the data path IP address of the remote Silver Peak appliance.
f
Leave Auto Max BW selected, so the appliance uses the lower of the two system bandwidths.
g
Leave the Min BW at its default, 32 [Kbps].
h
Click Apply.
i
Save the changes.
The tunnel status won’t change to Up until a tunnel is configured at both ends. So, we’ll now configure a tunnel from B to A1.
w
To create tunnels from B to A1 and to A2
1
From a browser, access Appliance B.
2
From the menu bar, select Configuration > Tunnels. The Tunnels page appears.
3
To add a tunnel to Appliance A1, click Add Tunnel.
a
In the Name field, assign a locally significant name for the tunnel.
b
Enter the Remote IP address (that is, the data path IP address of Appliance A1).
c
Click Apply.
4
To add a tunnel to Appliance A2, click Add Tunnel.
a
In the Name field, assign a locally significant name for the tunnel.
b
Enter the Remote IP address (that is, the data path IP address of Appliance A1).
c
Click Apply.
d
Save the changes.
Within a few seconds, the Status of both tunnels should change to Up - active.
Click Refresh, if required.
Now that the tunnels are up, the appliances can begin advertising subnet information to each other.
Please send comments or suggestions regarding user documentation to techpubs@silver-peak.com.