First login into EMS web page of the ASBCE to check the IP address of the SBCE_HA (Primary). You need that address for SSH access to the session to it. If the ASBCE is not a setup with High Availability, then SSH uses the ASBCE IP address.

In the upper left corner of the web page, choose Device: SBCE and click on Device Management. Note the IP address of the SBCE_HA(Primary). In the example below, 172.29.25.251.