New signaling procedures in ATM networks for advance resource reservation

Currently, communication with resource reservation on ATM networks has been required by popularization of multimedia applications. Types of resource r eservation are classified into two types according to reservation timing. O ne type invokes resource reservation just before communication between user s. Another type invokes it in advance. In this type, resources can be reser ved with communication time periods invoked by a user, well before actual c ommunication. For the former type, several standardization committees, such as the ATM Forum and ITU-T, have provided some signaling protocols. Howeve r, the latter type has no signaling protocol although necessity of this typ e has increased. This paper presents approaches of this type at first. Next , it proposes new signaling protocols to support this type keeping consiste ncy with the conventional protocols for the former type, and compares propo sed protocols. Moreover, it presents mechanisms to reserve resources cooper ating with proposed signaling protocols.