Method and device for multicast group management

摘要

The application relates to the problem of efficiently addressing channel changing operations performed by an end user system in which a Group Leave message for one multicast group is immediately followed by a Group Join message for another multicast group. These operations must be performed efficiently when the link from the end user systems to a network node providing connections to multicast channels is bandwidth limited, because the Group Join function cannot be completed until bandwidth is made available by processing the Group Leave request.