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Service Enhancement
With the Cisco ASR 903 Router, each service is assigned enhanced QoS and security attributes. The ASR 903
Router accomplishes advanced per-traffic-class metering and offers bidirectional packet count and byte count
statistics. The service offering is enhanced with operations, administration, and maintenance (OAM) functionality
that includes Layer 2 Connectivity Fault Management (CFM), IP service-level agreement (SLA) for Layer 3, and
MPLS OAM.
Service Scale
The Cisco ASR 903 Router delivers flexible service scalability in a small footprint. This router delivers high
performance and high scale for point-to-point and multipoint VPN services. The HQoS capabilities of the Cisco
ASR 903 Router scale to eight queues per service, three levels of scheduling, and buffer sizes capable of
accommodating today’s most demanding wireline and wireless applications.
Operational Efficiency
The Cisco ASR 903 Router features essential capabilities that help service providers simplify and automate the
management of their networks, resulting in efficiency gains in the deployment and operation of the networks.
These features enhance performance awareness, facilitate troubleshooting, and simplify service turn-up and
restoration, ultimately reducing operational cost. The Cisco ASR 903 Router provides proactive diagnostic tools
including Generic On-Line Diagnostics (GOLD) and Onboard Failure Logging (OBFL). These tools help service
providers avoid potential problems before they occur, troubleshoot any problems, and when these are diagnosed,
implement solutions.
Network Simplification
Cisco network Virtualization (nV) technology can simplify network operations by reducing the number of
components that must be managed and allowing for easier configuration. The result is increased network
scalability, improved service velocity and lower cost operating costs. The nV capable ASR 903 Series can be
deployed as a component in a Cisco ASR 9000 system to reduce the complexity of today’s mobile Internet
networks.
System Design
The Cisco ASR 903 Router is a fully modular system, with a future-ready design. The chassis supports online field
replacement and upgrades of all components. The chassis contains four different components, one fan tray, two
power supplies, two RSP cards, and up to six interface module cards.
Fan Tray
The Cisco ASR 903 Router has a single fan tray slot, which must be populated for the system to operate. The fan
tray contains redundant fans and the system will continue to operate on a single fan failure. In addition to cooling
the chassis, the fan tray also contains a connector for four dry-contact inputs and several system-level alarm
LEDs.
Power Supply
Both an AC and a DC power supply are available for the Cisco ASR 903 Router. The system supports operation
on a single power supply, while with two power supplies, both will function in a load-share configuration. Mixing of
AC and DC power supplies in a single operational chassis is not supported.
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