PM7328-BI 查看數據表（PDF） - PMC-Sierra

零件编号

产品描述 (功能)

比赛名单

PM7328-BI

ATM LAYER SOLUTION

PMC-Sierra 

STANDARD PRODUCT

DATASHEET

PMC-2010142

ISSUE 2

PM7328 S/UNI-ATLAS-1K800

ATM LAYER SOLUTION

• Egress functionality includes programmable direct lookup function, OAM-PM

termination, generation and monitoring, per-connection CLP0 and CLP1 cell

counts (programmable) and OAM-FM termination, generation and alarm

generation (monitoring). An egress per-PHY output buffering scheme

resolves the head-of-line blocking issue.

• UPC/NPC function is a programmable dual leaky bucket policing device with

a programmable action (tag, discard, or count only) for each bucket. A total of

3 programmable 16 bit non-compliant cell counts are provided. The non-

compliant cell counts may be programmed to count, for example, dropped

CLP0 cells, dropped CLP1 cells, and tagged CLP0 cells. The UPC/NPC

function also has a continuously violating mode, where a programmable

action is taken on all cells regardless of their compliance. AAL5 partial packet

discard is also provided so that the remainder of an AAL5 packet can be

tagged or discarded if a single cell in the packet is tagged or discarded as a

result of violating policing.

• In addition to the per-connection dual leaky bucket, a single leaky bucket

UPC/NPC function is provided on a per-PHY basis. A programmable action

(tag, discard or count only) may be configured for each PHY policing device.

Three programmable non-compliant cell counts are provided for each PHY.

The non-compliant cell counts may be programmed to count, for example,

dropped CLP0 cells, dropped CLP1 cells and tagged CLP0 cells. The per-

PHY policing parameters and non-compliant cell counts are maintained in an

on-chip RAM that can be programmed and read via the 16-bit general

purpose microprocessor interface.

• Guaranteed Frame Rate frame-based policing selectable on a per-connection

basis.

• OAM-Performance monitoring is provided in the ingress and egress direction

for bi-directional PM sessions. A maximum of 512 (256 bi-directional

sessions) PM sessions may be simultaneously active. PM is supported on the

F4 and F5 levels. The S/UNI-ATLAS-1K800 provides for the generation of

Forward Monitoring and Backward Reporting PM cells (both segment and

end-to-end), the termination of Forward Monitoring and Backward Reporting

cells, and for non-intrusive monitoring of Forward Monitoring and Backward

Reporting cells. The following statistics are collected when terminating or

monitoring PM flows:

1. Forward Impaired Block.

2. Forward Lost/Misinserted Impaired Block

3. Forward Severely Errored Cell Block (Lost).

PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC

2

Share Link: