![](http://datasheet.mmic.net.cn/330000/PM7329-BI_datasheet_16444382/PM7329-BI_17.png)
PM7329 S/UNI-APEX-1K800
DATASHEET
PMC-2010141
ISSUE 2
ATM TRAFFIC MANAGER AND SWITCH
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
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2
FEATURES
Monolithic single chip ATM traffic manager providing VC queuing/shaping and
VC, Class Of Service(COS), and Port scheduling, congestion management,
and switching across 128 ports.
Targeted at systems where many low speed ATM data ports are multiplexed
onto few high speed ports.
869 Kcells/s non shaped throughput in full duplex.
1.73 Mcells/s non shaped throughput in half duplex.
1.42 Mcells/s shaped throughput (aggregate of the four shapers).
Supports four WAN uplink ports, with port aliasing.
Supports 128 loop ports. Loop port can support an uncongested rate up to
230Kcells/sec.
Provides 4 Classes of Service per port with configurable traffic parameters
enabling support for a mix of CBR, VBR, GFR, and UBR classes.
Provides 1024 per-VC queues individually assignable to any COS in any port.
Provides support of up to 256k cells of shared buffer.
Provides 2 independent cell emission schedulers, 1 for the WAN ports, and 1
for the Loop ports. The schedulers have the following features: Three level
hierarchical cell emission scheduling at the port, class, and VC levels.
WAN Port Scheduling:
Weighted Interleaved Round Robin WAN port scheduling.
Per port Priority Fair Queued class scheduling with port
independence.
Per Class:
Weighted Fair Queued VC scheduling with class independence
or,