全部博文（237）
分类： C/C++
2010-07-08 11:11:06
ALR allows applications to switch an active data connection from one IAP to another so that the application can control whether or not to roam and when the roaming happens. It works as follows:
The middleware keeps track of available IAPs and informs the application if a better IAP than the one the application is currently using becomes available.
The application can either switch to the new connection or ignore the event, in which case it keeps using the current connection.
If the new connection does not work for a particular application (because of local firewall configuration, for example), the application has a possibility to reject the connection later.
In order to receive mobility API-related notifications from the middleware, the client application must register for it. For application level roaming to happen, the application must use destination networks in the connection setup.
For more information about ALR, see .
