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Overview :
Aricent FR-ATM PVC Interworking (Frame Relay-Asynchronous Transfer Mode) software supports network and service interworking of FR and ATM PVCs in accordance with FRF.5 and FRF.8. The network interworking part of Aricent FR-ATM PVC transparently transports FR traffic over the ATM network, while the service interworking part allows FR devices to interwork with the ATM services.
Aricent FR-ATM PVC is integrated with Aricent FR-PVC, which supports the Q.933 core, PVC management procedures and switching functionality. The FR-SSCS functionality of the network interworking part of Aricent FR-ATM uses the Q.933 core and PVC management procedures provided by Aricent FR-PVC.
The Aricent FR-ATM PVC software requires hardware and software implementation of AAL5.
Features :
- Network Interworking Functions :
- Complies with FRF.5 and ITU-T I.365.1 specifications.
- Supports one-to-one and many-to-one multiplexing of FR DLCIs to an ATM VCC.
- Supports ITU-T Q.933 Annex A procedures.
- Service Interworking Functions :
- Complies with FRF.8, RFC 1483 and RFC 1490 specifications.
- Provides one-to-one mapping between a FR DLCI and an ATM VCC.
- Supports transparent and translation modes, for encapsulation of upper layer user protocols.
- Conveys PVC management information between FR and ATM.
- Network and Service Interworking Functions :
- Supports mapping between the 'DE' field of the FR frames and the 'CLP' field of the CPCS AAL5 frames.
- Supports mapping between the 'FECN' and 'BECN' fields of the FR frames and the 'EFCI' field of the CPCS AAL5 frames.
- Flexible and easy-to-adapt interface with the CPCS AAL5 subsystem.
- Provides Congestion Management procedures as per ITU-T I.370.
- Provides complete support for SNMP-based management by implementing a proprietary FR-ATM PVC Interworking MIB.
Benefits :
Aricent FR-ATM PVC reduces the time to market for OEMs and VARs who wish to incorporate the FR-ATM PVC interworking functionality into their devices.
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