5. Generating Traffic for DSLAM Testing

Goal: Setup and run traffic to a DSLAM system as shown in the CT570 product description.

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Please refer to the diagram in the CT570 link above. In this test scenario, the LANforge-FIRE Core is one interface on a LANforge system. The LANforge-FIRE Edge is another interface on the same LANforge system. The LF Core interface is connected to the upstream DSLAM interface either directly or through a switch. The CPEs are connected to a multi-port VLAN switch which has a VLAN trunk that is connected to the LF Edge. Traffic is sent between the LF Core and the LF Edge to achieve end-to-end network traffic testing of the DSLAM system.

1. Connect one LANforge-FIRE interface to the DSLAM upstream internet connection.
   This is the LF Core part of the diagram mentioned above.
2. Setup the LANforge port so that it has a valid IP address and IP mask.

   A: Go to the Port Manager
   B: Modify the port connected to the DSLAM. Set a valid network IP address and IP mask.
   C: Verify the port configuration

   • For more information, see the LANforge User's Guide: Ports (Interfaces)
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3. Setup virtual interfaces.

   A: On the Port Mgr tab, select the port that will connect to the multi-port switch and will also be your VLAN trunk. This is the LF Edge part of the diagram.
   B: Click the Create button: • Select the 802.1Q-VLAN virtual interface type • The VLAN ID should correspond to your multi-port switch VLAN configuration • Enter Quantity (number of virtual interfaces to be created) • Enter the appropriate IP address and IP mask • Click OK or Apply to create the virtual interfaces
   C: Verify that the virtual interfaces are created and have the correct IP assignments
   D: Modify each port's MAC address for each virtual interface so that they are unique • Select the 'Set MAC' checkbox on the left to edit the MAC address field
   E: Scroll to the right to verify that the MAC addresses are unique

   • For more information, see the LANforge User's Guide: Creating & Deleting Virtual Interfaces
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4. Create Layer-3 connections.

   A: Go to the Layer-3 tab
   B: Click the Create button • Fill in a connection name, select a connection type and set the report timer • Make endpoint A the DSLAM upstream port or LF Core • Make endpoint B the CPE downstream port or LF Edge • You can make the TX/RX rates asymmetric for the connection to simulate how the connection would be used in a real-world scenario. Here we have about 5Mbps downstream (DSLAM to CPE) and 1Mbps upstream (CPE to DSLAM). • Click Apply to create the connection
   C: Create multiple connections • Change the connection name and endpoint B to the next virtual interface then click Apply to create the next connection Repeat until all five connections are created.

   • For more information, see the LANforge User's Guide: Layer-3 Endpoints (FIRE)
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5. Run traffic.

   A: Select the connections you want to start
   B: Click the Start button

   • For more information, see the LANforge User's Guide: Layer-3 Endpoints (FIRE)
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  Email Candela Technologies at: support@candelatech.com if you have any questions or suggestions.