It is possible for the Client to automatically connect to Servers on different Axxon domains—Cross-System Client.

For this to take place, the following conditions must be true:

• Professional, Enterprise or Unified license has been activated on each Server to which the Client is connected (see Axxon One license types). For example, some of the Servers may have an Enterprise license activated, and some may have a Unified one;
• connection to all Servers made via with the same user name/password combination on each Axxon domain;

• Server names and IP addresses are unique.

Configuration of automatic connection to Servers on different Axxon domains is performed as follows:

1. Go to Settings → Options → Automatic connection (1-2).

   

2. Configuring the protocol used by Clients to connect to the Server allows prioritizing reliability or speed of data transmission (3). The connection protocol is set individually for each Server in an Axxon domain. All Clients connected to the Server will receive video streams over the selected protocol.

   Descriptions and recommendations for selecting a protocol are given in the table.

   Protocol	Description
   TCP	This protocol is more reliable but bandwidth-intensive. Recommended for Servers with small numbers of cameras
   UDP unicast	UDP is typically faster but less reliable for data transmission. Unicast involves data transmission to a single recipient. This protocol is best for Servers with many cameras connected to a single Client.
   UDP multicast	Multicast refers to data transmission to a group of recipients. This protocol is designed for Servers with many cameras connected to multiple Clients. Important! This protocol has to be supported by all network components, in particular, switches.

   
   

3. Type the user name and password needed for logging in to each Axxon domain (4). If you leave these fields empty, manual authorization will be required when the Client starts.

4. Specify the Connection timeout parameter (5), which determines how long one must wait for a successful connection before considering the attempt to be unsuccessful. The default timeout value is 60 seconds, the maximum value is 5 minutes. When using this setting, automatic connection will attempt to connect immediately. If the connection fails, the Server will wait for a user-specified period of time (timeout) and retry the connection.

5. Specify the maximum number of automatic connection attempts after the specified timeout (6).
6. Indicate the Servers to connect to. For each Server, perform the following steps: 
   1. select the Server in the list (7);

   2. indicate the port for connecting to the Server (8).

      If the Port field is left blank, the standard port (20111) will be used for connecting.

      
      

   3. Click the Add button (9).

      It is possible to connect to only one Server on an Axxon domain. So when a Server is added to the list, all other Servers on the Axxon domain become unavailable for selection.

      
      

      To remove a Server from the list, click the  button.

      
      

7. After all Servers have been added to the list, select the main Axxon domain.
   When connecting, the Client will use the parameters (maps, layouts, user rights) of the main Axxon domain. 
   To select a main Axxon domain, select the check box in the relevant column of a Server that is on the Axxon domain (10).
8. Click the Apply button.

Click Export (1) to save the automatic Server connection and Preferred Servers (see Selecting Preferred Servers) configuration to the JSON file.

To load the preset configuration to other Clients, do the following:

1. Click Import (2).
2. Click Apply.

To change a port on an added Server, do the following:

1. Select this Server again from the list (1).
   
2. Enter a new port (2).
3. Click Edit (3).

Auto-connection to Servers on different Axxon domains is now complete.

The next time Axxon One is started, connection to the selected Servers with the specified user credentials will occur automatically.

If the Client is connected to several Servers, the Server settings are reproduced for each Server (see Server settings).