Checking the System Environment

Before the change, query and record the system version information and specifications, including Version, Device System, Max Resources, and Max Concurrent Conns.

1. Log in to the CBH system.
2. Confirm and record the version number of the CBH system.
   1. In the navigation pane on the left, choose System > About to view the system version information.
      Figure 1 Viewing CBH system version number
      
   2. Record information about Version and Device System.
      

      The device system version must be V3.2.16.0 or later, or the change does not take effect. first if needed.

3. Confirm and record the authorization configuration.
   1. Choose System > System Maintain > License to view the authorization information.
      Figure 2 Viewing license
      
   2. Record the number of authorized resources in Max Resources and the number of concurrent connections of authorized resources in Max Concurrent Conns.