Multiple Layer-2 Switches

1. Right-click inside the Netsmith window and select New Connection
2. Accept defaults Auto Create everything then click OK.
3. Repeat and create a total of seven (7) connections
4. Click the Apply button to commit the changes in Netsmith to the LANforge-Server
   1. NOTE: Modifications in Netsmith are only sent to the LANforge-Server after Applying them

For more information see LANforge-GUI User Guide: Virtual Interfaces

1. Right-click inside the Netsmith window and select New Bridge
2. Select the Bridge button, enter a name and quantity 5
   1. NOTE: The 5 bridges here are sw-0, sw-1, sw-2, sw-3, and sw-4
3. In Netsmith, position the bridge devices into separate areas so they can be grouped with WanLink entry points

For more information see LANforge-GUI User Guide: Ports (Interfaces)

1. Position the WanLink entry points in groups near the bridges as follows:
   1. 2 entry points near sw-0, sw-1, and sw-2 (one to sw-3 and one to sw-4)
   2. 3 entry points near sw-3 and sw-4 (one to sw-0, sw-1, and sw-2)
   3. Bridges sw-3 and sw-4 should also have a WanLink between them
2. Click Netsmith Apply to commit the changes

1. Right-click bridge sw-0 and select Modify Port
2. Select the 'Set Bridge Info' and 'Spanning Tree' checkboxes, then add bridge members rddVR1 and rddVR3
   1. NOTE: Selecting the 'Spanning Tree' checkbox enables Spanning Tree Protocol (STP) for that port
   2. Click the Apply or OK button to commit the changes in bridge configuration to the LANforge-Server
3. Right-click bridge sw-1 and select Modify Port
   1. Enable STP and add members rddVR5 and rddVR7
4. Right-click bridge sw-2 and select Modify Port
   1. Enable STP and add members rddVR11 and rddVR13
5. Right-click bridge sw-3 and select Modify Port
   1. Enable STP and add members rddVR0, rddVR4, rddVR8 and rddVR10
6. Right-click bridge sw-4 and select Modify Port
   1. Enable STP and add members rddVR2, rddVR6, rddVR9 and rddVR12

1. Right-click sw-0 and select Create Ports and choose Redirect
   1. This step will create two Redirect Devices, rddA and rddB
2. Add rddA to bridge sw-0
   1. Click the Apply or OK button to commit the changes in bridge configuration to the LANforge-Server
3. Right-click rddB and select Create Ports, then select the MAC-VLAN button
   1. Enter a starting MAC address, quantity 5, and starting IP address
4. Repeat for bridge sw-1
   1. NOTE: The Netsmith display has been 'zoomed-out' by clicking the '-' magnifying glass icon located at the top left of the Netsmith display
5. Repeat for bridge sw-2

1. On the Layer-3 tab, create a Layer-3 UDP connection between
   rddB#0 and rddD#0
2. Create 4 more connections between the remaining rddB and rddD ports
3. Create 5 connections between the rddD and rddF ports
   1. Repeat this step for the rddF and rddB ports for a total of 15 connections

1. On the Layer-3 tab, select all 15 connections and click Start

1. In this case, VRWL1.1.001, VRWL-1.1.003 and VRWL-1.1.006 all show traffic flowing

1. A sample LANforge HTML report of this fail-over test can be found here:
2. Fail-Over Test Sample HTML Report