Cisco CRS-1 System Description page 4

Contents
Chassis Cooling System
3
C H A P T E R
Switch Fabric
4
C H A P T E R
Line Cards, Physical Layer Interface Modules, and Shared Port Adapters Overview
5
C H A P T E R
Route Processor
6
C H A P T E R
Cisco CRS Carrier Routing System 4-Slot Line Card Chassis System Description
iv
3-1
Cooling System Overview
Chassis Airflow
3-2
Cooling System Operation
Cooling System Redundancy
Fan Tray
3-5
4-1
Switch Fabric Overview
4-1
Switch Fabric Operation
4-2
Switch Fabric Cards
4-3
Switch Fabric Card Description
Switch Fabric Card Components
Switch Fabric Card Physical Characteristics
Line Cards and PLIMs Overview
PLIM Physical Interface Module on Ingress
MSC Ingress Packet Engine
MSC To Fabric Section and Queuing
MSC From Fabric Section
MSC Egress Packet Engine
Shaping and Queuing Function
PLIM Physical Interface Section on Egress
MSC CPU and CPU Interface
Line Card Descriptions
5-6
Physical Layer Interface Modules
Chassis Cable Management
SPA Interface Processors and Shared Port Adapters
6-1
Route Processor Overview
Primary and Standby Arbitration
RP Card to Fabric Module Queuing
Performance Route Processor
Performance Route Processor Front Panel
Performance Route Processor Overview
Performance Route Processor Memory Options
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3-3
3-4
4-3
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4-6
5-1
5-3
5-3
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5-4
5-4
5-4
5-4
5-5
5-9
5-11
5-11
6-1
6-4
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6-5
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5-1
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