Describes the architecture and implementation of a Secure Active Network Environment (SANE), which is assumed to provide the basis for implementing network-level solutions. Security risks associated with increasing the flexibility of active network infrastructures; Threats to network infrastructures; Details on the structure of SANE; Use of dynamic security checks and measures to ensure that access and resource use policies are followed.

Presents information on the Switch Ware active network architecture. Use of layered architecture by Switch Ware; Advantages of using this architecture; Security provided by Switch Ware; State of verification and compiler technology; Role of active packets in active networks; Reference to the Active Bridge, a prototype constructed to study active networking; Conclusions reached regarding Switch Ware