The Cisco ASR 901 Series Aggregation Services Router is a compact, high-performance platform designed to meet the demands of modern mobile backhaul and Ethernet access networks. Engineered for deployment in space-constrained environments, the ASR 901 supports both Layer 2 and Layer 3 services and includes key carrier-grade features such as hardware-based operations, administration and maintenance (OAM), advanced timing synchronization with IEEE 1588v2 and SyncE, and resilient network design. With support for Gigabit and 10 Gigabit Ethernet interfaces, it provides flexible connectivity options for service providers looking to deliver business services, aggregate small cells, or migrate legacy transport networks, all within a small and ruggedized form factor suitable for both indoor and outdoor installations.
Carritech supports operators and service providers using the Cisco ASR 901 by sourcing equipment tailored to their specific requirements. Whether you’re maintaining legacy infrastructure or planning a network expansion, our global network of trusted suppliers allows us to locate and supply ASR 901 routers and components that meet your technical and operational standards. Every unit we source is carefully vetted and tested to ensure reliability, and our experienced team is on hand to provide advice, logistics coordination, and long-term support throughout your equipment lifecycle.
Compact, Hardened Design: Suitable for indoor and outdoor deployments, including space-constrained and harsh environments.
Carrier Ethernet Support: Delivers advanced Layer 2 and Layer 3 services, ideal for mobile backhaul and Ethernet access.
High Port Density: Supports multiple Gigabit Ethernet (GE) and 10 Gigabit Ethernet (10GE) interfaces for flexible connectivity.
Advanced Timing and Synchronization: IEEE 1588v2 (Precision Time Protocol) and SyncE support for accurate mobile network timing.
Hardware-Based OAM: Built-in tools for fault detection, performance monitoring, and service assurance.
Resilient Architecture: Redundancy and fast failover mechanisms ensure high availability and service continuity.
Flexible Deployment Options: DC and AC power options, as well as temperature-hardened models for a wide range of use cases.
MPLS and Segment Routing: Enables scalable, efficient traffic engineering and network segmentation.
Network Virtualization Support: Supports pseudowire, Ethernet over MPLS (EoMPLS), and VPN services.
Software Feature Set: Runs Cisco IOS software with a wide range of features for IP routing, QoS, security, and traffic management.
Form Factor:
1RU (rack-mountable) or compact enclosure for outdoor/indoor deployment
Dimensions (W x H x D):
Approx. 17.5 x 1.72 x 10 in (44.45 x 4.37 x 25.4 cm) – varies slightly by model
Weight:
Approx. 10–15 lbs (4.5–6.8 kg), depending on configuration
Interface Options:
Up to 8 x 1GE SFP ports
Up to 4 x 10GE SFP+ ports
1 x RJ45 management port
1 x Console port (RJ45 or mini-USB)
T1/E1, OC-3/OC-12 (in some models)
Timing and Synchronization:
IEEE 1588v2 (PTP)
SyncE (Synchronous Ethernet)
Building Integrated Timing Supply (BITS) input/output
GPS and external clocking options
Power Options:
AC: 100–240V AC, 50–60 Hz
DC: -40 to -72 VDC
Dual power inputs supported (AC or DC)
Environmental Specifications:
Operating Temperature: -40°C to +65°C (-40°F to +149°F)
Storage Temperature: -40°C to +85°C (-40°F to +185°F)
Humidity: 5% to 95% non-condensing
NEBS Level 3 compliant (select models)
Cooling:
Fanless or fan-cooled depending on model
Front-to-back or side-to-side airflow
Software Features (Cisco IOS):
IPv4/IPv6 routing (OSPF, BGP, IS-IS, RIP)
MPLS, Segment Routing
QoS and Traffic Management
Security (Access Control Lists, MACsec, Control Plane Protection)
Layer 2 services (VLAN, QinQ, STP, MSTP, Ethernet OAM)
Reliability:
Mean Time Between Failures (MTBF): Over 250,000 hours (model-dependent)
Certifications and Compliance:
RoHS compliant
GR-3108 Class 2 and 3 for hardened environments
FCC, UL, CE, and other regional certifications
| Time Period | Brand / Company | Role / Notes |
|---|---|---|
| 2012 – 2021 | Cisco Systems, Inc. | Original developer, manufacturer, and sole marketer of the ASR 901 Series. |
| 2021 – Present | Cisco (via resellers & partners) | Cisco stopped actively promoting the ASR 901 as a lead product, transitioning customers to newer platforms (e.g., ASR 920, NCS series), but authorized resellers and secondary market partners continued to support sourcing and maintenance. |
| Present (Secondary Market) | Independent Resellers, Third-party Support Specialists (e.g., Carritech) | After Cisco End-of-Sale/EoL, sourcing and lifecycle support shifted to the secondary market. Companies like Carritech now support sourcing, maintenance, and lifecycle extension. |
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From expert maintenance and repair to reliable part sourcing and technical consultation, we provide comprehensive support for every stage of your network’s lifecycle. Whether you’re extending the life of legacy systems or integrating with modern infrastructure, our team ensures seamless, efficient, and cost-effective solutions—so you can focus on performance, not problems.