System Administration Guide, Volume 3

Link Manager

The /usr/sbin/aspppd link manager is a user-level daemon that automates the process of connecting to a remote host when PPP service is required. This automated process starts whenever any activity that generates IP traffic takes place (for example, a user logs in to a remote machine, accesses an NFS mounted file, and so on). If a remote host tries to establish a connection, the link manager on the local host will complete the connection.

Refer to the aspppd(1M) man page for specific information about the link manager.