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
3-8
Cisco ASR 9000 Series Aggregation Services Router Overview and Reference Guide
OL-17501-09
Chapter 3 High Availability and Redundant Operation
Cooling System Redundancy
Figure 3-12 DC System Power Redundancy for the Cisco ASR 9912 Router—Version 2
Note The Cisco ASR 9000 Series Routers are capable of operating with one power module. However, such a
configuration does not provide any redundancy.
Redundant –48 VDC power feeds are separately routed to each power tray. For maximum diversity, the
power entry point to each tray is spatially separated to the left and right edges of the tray. Each feed can
support the power consumed by the entire tray. There is load sharing between the feeds. Each power
module in the tray uses either feed for power, enabling maintenance or replacement of a power feed
without causing interruption.
Detection and Reporting of Power Problems
All –48 VDC feed and return lines have fuses and are monitored. Any fuse blown can be detected and
reported. The input voltages are monitored against an over and under voltage alarm threshold. The
controller area network (CAN) monitors the power output voltage levels.
Cooling System Redundancy
The Cisco ASR 9000 Series Routers are configured in such a way that a fan failure or its subsequent
replacement does not cause a significant outage. During either a fan replacement or a fan failure, the
airflow is maintained and no outage occurs. Also, the fan trays are hot swappable so that no outage
occurs during replacement.
The Cisco ASR 9010 Router has two fan trays at the bottom of the card tray. Each fan tray has 12 fans
arranged in three groups of four fans each. Two fans of each group share a fan controller. The power
supplied to the fan controller is 1:3 protected. A single fan failure has no impact on air flow because the
other 11 fans will compensate for it. If the fan controller fails, there is a possibility of up to two fans
failing; however, the design always has two fans operating in a row (three rows of fans) to compensate
for the air speed.
The Cisco ASR 9006 Router has two fan trays at the top left of the chassis. Each fan tray has six fans
arranged in three groups of two fans each. The two fans in a group share a fan controller. The power
supplied to the fan controller is 1:3 protected. A single fan failure has no impact on air flow because the
other five fans will compensate for it. If the fan controller fails, there is a possibility of up to two fans
failing; however, the design always has two fans operating to compensate for the air speed.
350775
2100W DC 2100W DC 2100W DC 2100W DC 2100W DC 2100W DC 2100W DC 2100W DC
2100W DC 2100W DC 2100W DC 2100W DC
2100W DC 2100W DC 2100W DC 2100W DC
6,300W DC system
3+1 min power redundancy
23,100W DC system
11+1 max power redundancy