cn8237 Mindspeed Technologies, cn8237 Datasheet - Page 13
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cn8237
Manufacturer Part Number
cn8237
Description
Atm Oc-12 Servicesar Plus With Xbr Traffic Management
Manufacturer
Mindspeed Technologies
Datasheet
1.CN8237.pdf
(415 pages)
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CN8237
ATM OC-12 ServiceSAR Plus with xBR Traffic Management
7.0
28237-DSH-001-C
OAM Functions
7.1
7.2
7.3
7.4
7.5
6.5.6 RS_QUEUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-53
6.5.7 Scheduler Internal SRAM Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-54
7.1.1 OAM Functions Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
7.1.2 OAM Flows Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.1.3 OAM Cell Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-5
7.1.4 Global Queue Processing of OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
7.2.1 Key OAM-Related Fields for OAM Segmentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.2.2 Error Condition During OAM Segmentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.3.1 Key OAM-Related Fields for OAM Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7.3.2 OAM Reassembly Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
7.3.3 Error Conditions During OAM Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
7.4.1 Initializing PM Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
7.4.2 Setting Up Channels for PM Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
7.4.3 PM Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
7.4.4 Error Conditions During PM Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
7.4.5 PASS_OAM Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
OAM Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Segmentation of OAM Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
Reassembly of OAM Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
PM Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
OAM Control and Status Structures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
7.1.2.1 F4 OAM Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.1.2.2 F5 OAM Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
7.1.2.3 Performance Monitoring (PM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
7.2.1.1 Segmentation Buffer Descriptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.2.1.2 Low Latency Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.2.1.3 Segmentation Status Queue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.2.1.4 F4 Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
7.3.1.1 Reassembly VCC State Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7.3.1.2 Reassembly Status Queue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7.3.1.3 F4 Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
7.4.3.1 Generation of Forward Monitoring PM Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
7.4.3.2 Reassembly of Forward Monitoring PM Cells . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
7.4.3.3 Reassembly of Backward Reporting PM Cells . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
7.4.3.4 Turnaround and Segmentation of Backward Reporting PM Cells . . . . . . . . . . . . 7-13
7.4.3.5 Turnaround of Backward Reporting PM Cells ONLY . . . . . . . . . . . . . . . . . . . . . 7-13
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Mindspeed Technologies
™
Table of Contents
vii
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