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Network Testing and Emulation Solutions

Clustering multiple LANforge systems together

Goal: Cluster multiple LANforge systems together to use while Wifi network testing. Clustering enables multiple LANforges to act as one large LANforge.

Multiple LANforge machines can be used as a group with one manager LANforge.
 
  1. An unclustered LANforge is both 'Manager' and 'Resource'. In a cluster (with multiple LANforges), there is one LANforge that is a 'Manager' and 'Resource' and there are other LANforges that are only 'Resources'. The LANforges that are only a 'Resource' use the first LANforge as their 'Manager'. There are two ways to cluster. One way is via the command line, second is via the User Interface. This cookbook demonstrates how to cluster via the User Interface. First, configure the first LANforge (which is typically both a 'Resource' and 'Manager')
    1. Open a VNC/RDP window to the LANforge wished to be used as the 'Manager' and 'Resource' of the final cluster. Click on the Configure LANforge icon located on the VNC session desktop. screenshot
    2. Once the 'LANforge Installation and Configuration (as superuser)' window opens, click on the Basic tab. Set the Setup Mode to Both, Resource ID to 1, and pick a realm 1-254 (example below is realm 2). Realm 255 means the LANforge is un-clustered. screenshot
    3. Click on Apply and Exit LANforge Config to save settings.
  2. Next, configure the following LANforges to cluster to the first LANforge. These LANforges will be only Resources.
    1. Open a VNC/RDP window to the LANforge wished to be used as the 'Manager' and 'Resource' of the final cluster. Click on the Configure LANforge icon located on the VNC session desktop. screenshot
    2. Once the 'LANforge Installation and Configuration (as superuser)' window opens, click on the Basic tab. Set the Setup Mode to Resource, Resource ID to 2 or what the next unused Resource number is, and pick the same realm as the manager LANforge (in our example, realm 2). screenshot
    3. Click on the Clustering tab and in the Connect to Manager input box, put in the Manager's IP address followed by a ':4002' screenshot
    4. Click on Apply and Exit LANforge Config to save settings.
  3. Restart LANforge Manager on all LANforges of cluster. The 'Status' tab of 'the Manager' of the clustered systems should show multiple resources now, as shown in the example below. If systems are not clustering and LANforge version build dates are too far apart between systems in cluster, LANforges may need to be upgraded so build version dates are closer to each other. Please contact support@candelatech.com for assistance. screenshot

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