Push notifications are enabled for this agent over UDP without a persistent connection. The MobiLink Listener (dblsn) is started by qauagent but does not maintain a persistent connection to the MobiLink server. Instead, a UDP listener receives push notifications from MobiLink. This mode is useful in the following scenarios when the client device has a public IP address and is reachable by UDP or SMS:

• The client device is using dial-up networking and connection time charges are an issue.
• There is light message traffic over QAnywhere. Persistent TCP/IP connections consume network server resources, and so could have an impact on scalability.
• The client device network coverage is unreliable. You can use the automatic policy to transmit messages when connection is possible. Trying to maintain persistent connections in this environment is not useful and can waste CPU resources.

Push notifications are enabled for this agent using light weight polling. The poll period for the light weight poll can be adjusted by including the desired interval in seconds in square brackets following lwpoll. For example, -push lwpoll[5] sets a QAnywhere agent to use light weight polling with an interval of 5 seconds between polls. If no interval is given, the default period is 60 seconds.

Clients using light weight polling in a secure environment do not need to register a MobiLink user for the MobiLink Listener, as required by other push notification modes.