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5.2.1 Service Classes Supported by the IBM 8285 ATM Workgroup
The following quality of service (QoS) classes are supported by the 8285 control
point:
•
Constant bit rate (CBR)
•
Variable bit rate - real time (VBR-rt)
This class is supported as CBR.
•
Variable bit rate - non-real time (VBR-nrt)
This class is supported as CBR.
•
Unspecified bit rate (UBR)
•
Available bit rate (ABR)
Table 15 provide information about the traffic management functions supported
by the 8285.
Table 15. Traffic Management Functions Support
Traffic Management Functions Supported
Connection admission control (CAC) Yes
Usage parameter control (UPC) No
Generic cell rate algorithm (GRCA) No
Explicit forward congestion indication (EFCI) Yes
Full packet level discard Yes
Network parameter control No
Random early detection (RED) No
Selective cell discarding No
Dynanic discard control No
90 ATM Workgroup Solutions: Implementing the 8285 ATM Switch