user manual
Table Of Contents
- Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
- Preface
- Overview and Physical Description
- Chassis Physical Overview
- Cisco ASR 9010 Router
- Cisco ASR 9006 Router
- Cisco ASR 9904 Router
- Cisco ASR 9922 Router
- Cisco ASR 9912 Router
- Field Replaceable Units
- Rack-Mounting Considerations
- Chassis Slots
- Fiber and Interface Cable Management
- Routing of DC Power Tray Source Cables
- Slot Numbering and Marking
- Power Module Hardware and Software Identification
- Route Switch Processor and Route Processor Cards
- RSP Front Panel and Access Ports
- RP Front Panel and Access Ports
- Management Features
- Alarm Connector
- Serviceability
- RSP and RP Card Ejector Levers
- Fabric Controller Card
- FC Card Ejector Levers
- Ethernet Line Cards
- Line Card Front Panel and Access Ports
- Line Card Serviceability
- Line Card Ejector Levers
- Power System
- AC and DC Power Modules
- Cooling System
- Cooling Path
- Fan Trays
- Management and Configuration
- Line Card Front Panel and Access Ports
- Line Card Serviceability
- Line Card Ejector Levers
- Power System
- Functional Description
- Router Operation
- Route Switch Processor Card
- Route Processor Card
- Front Panel Connectors
- Management LAN Ports
- Console Port
- Auxiliary Port
- Alarm Out
- Synchronization Ports
- RP USB Port
- Front Panel Indicators
- LED Matrix Display
- LED Matrix Boot Stage and Runtime Display
- LED Matrix CAN Bus Controller Error Display
- Push Buttons
- Functional Description
- Switch Fabric
- Unicast Traffic
- Multicast Traffic
- Route Processor Functions
- Processor-to-Processor Communication
- Route Processor/Fabric Interconnect
- Fabric Controller Card
- FC Card Front Panel Indicator
- Ethernet Line Cards
- Functional Description
- 40-Port Gigabit Ethernet (40x1GE) Line Card
- 8-Port 10-Gigabit Ethernet (8x10GE) 2:1 Oversubscribed Line Card
- 4-Port 10-Gigabit Ethernet (4x10GE) Line Card
- 8-port 10-Gigabit Ethernet (8x10GE) 80-Gbps Line Rate Card
- 2-Port 10-Gigabit Ethernet + 20-port 1-Gigabit Ethernet (2x10GE + 20x1GE) Combination Line Card
- 16-port 10-Gigabit Ethernet (16x10GE) Oversubscribed Line Card
- 24-Port 10-Gigabit Ethernet Line Card
- 36-port 10-Gigabit Ethernet Line Card
- 2-port 100-Gigabit Ethernet Line Card
- 1-Port 100-Gigabit Ethernet Line Card
- Modular Line Cards
- 20-port Gigabit Ethernet Modular Port Adapter
- 8-port 10-Gigabit Ethernet Modular Port Adapter
- 4-Port 10-Gigabit Ethernet Modular Port Adapter
- 2-port 10-Gigabit Ethernet Modular Port Adapter
- 2-Port 40-Gigabit Ethernet Modular Port Adapter
- 1-Port 40-Gigabit Ethernet Modular Port Adapter
- Power System Functional Description
- Power Modules
- Power Module Status Indicators
- System Power Redundancy
- AC Power Trays
- AC Tray Power Switch
- AC Input Voltage Range
- DC Output Levels
- AC System Operation
- Power Up
- Power Down
- DC Power Trays
- DC Tray Power Switch
- DC Power Tray Rear Panel
- DC Power Tray Power Feed Indicator
- DC System Operation
- Power Up
- Power Down
- Cooling System Functional Description
- Cooling Path
- Fan Trays
- Cisco ASR 9010 Router Fan Trays
- Cisco ASR 9006 Router Fan Trays
- Cisco ASR 9904 Router Fan Tray
- Cisco ASR 9922 Router and Cisco ASR 9912 Router Fan Trays
- Status Indicators
- Fan Tray Servicing
- Slot Fillers
- Chassis Air Filter
- Speed Control
- Temperature Sensing and Monitoring
- Servicing
- System Shutdown
- System Management and Configuration
- Cisco IOS XR Software
- System Management Interfaces
- Command-Line Interface
- Craft Works Interface
- XML
- SNMP
- SNMP Agent
- MIBs
- Online Diagnostics
- High Availability and Redundant Operation
- Features Overview
- High Availability Router Operations
- Stateful Switchover
- Fabric Switchover
- Active/Standby Status Interpretation
- Non-Stop Forwarding
- Nonstop Routing
- Graceful Restart
- Process Restartability
- Fault Detection and Management
- Power Supply Redundancy
- AC Power Redundancy
- DC Power Redundancy
- Detection and Reporting of Power Problems
- Cooling System Redundancy
- Cooling Failure Alarm
- Technical Specifications
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Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
Chapter 2 Functional Description
Fabric Controller Card
The packet diversion FPGA has three key functions:
• Packet header translation between the header used by the fabric interface chip and the header
exchanged with the Ethernet interface on the route processor.
• I/O interface protocol conversion (rate-matching) between the 20-Gbps DDR bus from the fabric
interface chip and the 1-Gbps interface on the processor.
• Flow control to prevent overflow in the from-fabric buffer within the packet diversion FPGA, in case
of fabric congestion.
The Route Processor communicates with the switch fabric via a FIC to process control traffic. The FIC
has sufficient bandwidth to handle the control traffic and flow control in the event of fabric congestion.
External traffic is diverted to the Route Processor by the line card network processors.
The RP and FC cards in the Cisco ASR 9922 Router have control interface chips and FICs attached to
the backplanes that provide control plane and punt paths.
Fabric Controller Card
On the Cisco ASR 9922 Router and Cisco ASR 9912 Router, the switch fabric has been moved to FC
cards.
The switch fabric is configured as a single stage of switching with multiple parallel planes. The switch
fabric is responsible for transporting packets from one line card to another but has no packet processing
capabilities. Each fabric plane is a single-stage, non-blocking, packet-based, store-and-forward switch.
To manage fabric congestion, the RP provides centralized Virtual Output Queue (VOQ) arbitration.
The switch fabric is capable of delivering 550-Gbps per line card slot. When five FC cards are installed
in the chassis, the switch fabric is 4+1 redundant. When all seven FC cards are installed in the chassis,
the switch fabric is 6+1 redundant. The switch fabric is fully redundant, with one copy of the fabric on
each FC, and each FC carries enough switching capacity to meet the chassis throughput specifications.