Consider a scenario where you use 300 NetScaler VPX devices in the development and testing stages in your production environment. To manage and monitor such large number of devices, you can now set up Command Center in a distributed multi-tier architecture by configuring Command Center agents to manage and monitor the Citrix devices.
This architecture reduces the load on the Command Center server by distributing the load across the different agents. In a distributed multi-tier setup, the Command Center server performs operations, such as discovery, trap processing, and configuration using tasks. The agents are used for polling and collecting data used for performance monitoring, such as CPU usage, resource utilization, and IP bytes transmitted, and for certificate management. The Command Center server and the agents are connected to the same database.
After the agents are installed and connected to the Command Center server, you can view the agent details on the Administration tab from the Command Center client. You can activate the agents from the client, and then assign devices to the agent to manage. For more information, see Setting Up Command Center Agents.
You can also monitor the state of the agents from your Command Center client. For example, when an agent connects to the Command Center server, an event with severity as clear is raised. And, when an agent connected to the server is down, an event with severity as critical is raised. This allows the user to take appropriate action.
To install the Command Center agents, use the Command Center installation package available at the Citrix portal: http://mycitrix.com. The installation package is an binary file with the following naming convention:
Note: You cannot install the Command Center server and the agent on the same system. Also, you cannot install more than one agent on a system.