Administration Guide › Troubleshooting › CA Server Automation Troubleshooting › Discovering Large Networks

Discovering Large Networks

Symptom:

Discovery can fail to discover networks that contain more than 1024 nodes (for example, a Class B network with a subnet mask of 255.255.0.0).

Solution:

Run network discovery on smaller subnets (for example, a Class C network with a subnet mask of 255.255.255.0). If discovery fails on a large network, perform the following procedure to clean up the discovery database:

1. Stop the following services from Windows Services Control on the server where Network Discovery Gateway is installed:
   • Network Discovery Gateway
   • CA Server Automation Windows service
   • Network Discovery Gateway Agent
   • Network Discovery Gateway Server
   • Apache 2.2
2. Open the folder where Network Discovery Gateway is installed. The file is located in the following path:

   [CA Server Automation_installation_drive]:\Program Files\CA\SC\Network Discovery Gateway
   

3. Delete the *.sq3 files.
4. Start Network Discovery Gateway and the CA Server Automation Windows service in the following order:
   1. Network Discovery Gateway Agent
   2. Network Discovery Gateway Server
   3. Apache 2.2