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PM7326

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 2048 ports.• Targeted at systems where many low speed ATM data ports are multiplexed onto few high speed p...

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SeekIC No. : 004463764 Detail

PM7326: 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 2048 ports.&...

PM7326 Data Sheet

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Part Number:
PM7326
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/25

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Product Details

Description



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 2048 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 2048 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 64k 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.


Description

The PM7326 S/UNI APEX is a full duplex ATM traffic management device, providing cell switching, per VC queuing, traffic shaping, congestion management, and hierarchical scheduling to up to 2048 loop ports and up to 4 WAN ports.

The S/UNI APEX provides per-VC queuing for 64K VCs. A per-VC queue may be allocated to any Class of Service (COS), within any port, in either direction (ingress or egress path). Per-VC queuing enables PCR or SCR per-VC shaping on WAN ports and greater fairness of bandwidth allocation between VCs within a COS.

The S/UNI APEX provides three level hierarchical scheduling for port, COS, and VC level scheduling. There are two, three level schedulers; one for the loop ports and one for the WAN ports. The three level scheduler for the WAN ports




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