Q
What is the Cisco ASR 900 router?
A
The Cisco ASR 900 is a compact, high-performance aggregation router designed for metro Ethernet, business services and mobile backhaul applications.
Q
Which operating system runs on the Cisco ASR 900?
A
The Cisco ASR 900 runs Cisco IOS XE, providing modularity, programmability and consistency with Cisco’s enterprise routing portfolio.
Q
What performance levels does the Cisco ASR 900 deliver?
A
The ASR 900 scales up to 200 Gbps of aggregate throughput with wire-speed forwarding, enabling dense subscriber and business service deployments.
Q
What interface options are available on the Cisco ASR 900?
A
The ASR 900 supports up to 12 modular SFP/SFP+ ports, 2 QSFP+ ports and optional integrated T1/E1 or xDSL interface modules.
Q
How is the Cisco ASR 900 powered and cooled?
A
The ASR 900 features dual redundant AC or DC power supplies with front-to-back forced-air cooling for reliable 24/7 operation.
Q
What deployment scenarios suit the Cisco ASR 900?
A
Ideal for metro Ethernet aggregation, mobile backhaul, business services and wholesale carrier environments requiring high density and low latency.
Q
How does Cisco ASR 900 support mobile backhaul?
A
With timing synchronization (SyncE, 1588v2), hierarchical QoS and jitter/buffer management, the ASR 900 ensures reliable 4G/5G traffic delivery.
Q
What Quality of Service (QoS) features are included?
A
The ASR 900 offers advanced QoS with hierarchical policies, traffic shaping, policing and low-latency queuing for SLA compliance.
Q
How do I configure the Cisco ASR 900?
A
You configure the ASR 900 via Cisco IOS XE CLI or NETCONF/YANG APIs for automated, model-driven provisioning and monitoring.
Q
What security features does the Cisco ASR 900 provide?
A
The platform includes control-plane policing, MACsec, ACLs, uRPF, and support for Cisco TrustSec to safeguard network edge traffic.
Q
Can I stack multiple Cisco ASR 900 units?
A
No, the ASR 900 is a standalone aggregation router; use high-availability features like stateful switchover and redundant power for resilience.
Q
How is licensing handled on the Cisco ASR 900?
A
The ASR 900 uses Cisco Smart Licensing for on-demand feature activation and centralized compliance management.
Q
What is the power consumption of the Cisco ASR 900?
A
Typical power draw is under 100 Watts full load, with power-saving modes for lower port counts and reduced traffic.
Q
How do I upgrade the Cisco ASR 900 software?
A
Use the Cisco IOS XE Software Upgrade Utility or copy the new image via TFTP, FTP or USB, then reload with the updated package.
Q
What support options are available for Cisco ASR 900?
A
Cisco offers SMARTnet service with 24/7 hardware replacement, software updates and technical assistance for the ASR 900 platform.
Q
How does Cisco ASR 900 compare to the ASR 920?
A
The ASR 900 is optimized for metro aggregation with higher port density, while the ASR 920 targets enterprise edge and small-site deployments.
Q
Where can I purchase the Cisco ASR 900 router?
A
The Cisco ASR 900 is available through authorized Cisco partners and resellers; contact Cisco’s sales team for pricing and lead times.