In order for the SAS to discover the 7705 SAR-Hmc as a CBSD, the SAS administrator provides the CBSD operator with a URL to the primary SAS server and, optionally, a URL to a secondary SAS server. The URL is used in the sas-server-primary and sas-server-secondary CLI commands.
When the CBSD attaches to the wireless network, the DNS server IP address is used to resolve the SAS server URL. The CBSD attempts to establish an HTTPS session with the primary SAS server and, optionally, the secondary SAS server. If the attempt to establish a session with the primary SAS server fails, the node attempts a session with the secondary server if it is configured. If that attempt fails, the 7705 SAR-Hmc will wait 60 s before reattempting an HTTPS session with the primary server.