Cisco ASR 920 Router Datasheet

In today’s rapidly evolving digital landscape, service providers face increasing demands for high-speed, reliable, and cost-effective network access solutions. Delivering a converged access platform capable of supporting both wireline and wireless services efficiently is paramount. The Cisco ASR 920 Series Aggregation Services Routers, particularly the high-port-density models, are engineered to address these challenges head-on. These routers offer a robust and scalable feature set within a compact, power-efficient, and temperature-hardened design, making them ideal for a variety of deployment scenarios including mobile backhaul and business applications. By supporting Layer 2 VPN (L2VPN) and Layer 3 VPN (L3VPN) services and enabling MPLS deployment from the access layer, the ASR 920 series provides the flexibility and performance necessary for modern converged networks. This document delves into the product overview, technical specifications, and ordering information for these high-density ASR 920 models, highlighting their capabilities and advantages for service providers.

Product Overview Cisco ASR 920 Series

The Cisco ASR 920 Series Aggregation Services Router family represents a significant advancement in converged access platforms. These routers are specifically designed to empower service providers to deliver a wide array of wireline and wireless services with enhanced cost-effectiveness and efficiency. The architecture and feature set are optimized for high throughput, making them suitable for demanding applications like mobile backhaul and business services. One of the key differentiators of the ASR 920 series is its ability to offer a comprehensive and scalable feature set, supporting both Layer 2 and Layer 3 VPN services within a compact form factor. This capability allows service providers to push MPLS-based VPN services closer to the network edge, capitalizing on the operational benefits of a unified MPLS control plane. Furthermore, the ASR 920 series incorporates essential Carrier Ethernet features aimed at simplifying network operations and providing enhanced service-level agreements (SLAs) for premium services. The platform’s design also includes an optional service-activation model, promoting incremental growth and contributing to a flexible and cost-effective deployment strategy. The high-port-density models within the ASR 920 series offer varied interface options to meet diverse network requirements. These models include part numbers ASR-920-12SZ-IM, ASR-920-24TZ-M, ASR-920-24SZ-M, and ASR-920-24SZ-IM, each providing a distinct mix of Ethernet and, in some cases, TDM interfaces to cater to different aggregation and access needs. The thoughtful design and feature richness of the ASR 920 series position it as a versatile and powerful platform for service providers aiming to modernize their access infrastructure.

Key Applications and Differentiators

The versatility of the Cisco ASR 920 Series Aggregation Services Routers manifests in their suitability for several major applications. For broadband access, these routers excel at delivering comprehensive “any-play” services – voice, video, data, and mobility – to a large subscriber base. Their robust Quality of Service (QoS) capabilities, including a high number of queues per device and a three-level hierarchical QoS algorithm, ensure an enhanced user experience even under heavy load. The support for Layer 2 switching and Layer 3 routing, coupled with features like IPTV and video on demand (VoD) support, seamlessly integrates the ASR 920 into broadband access architectures and extends the Cisco Evolved Programmable Network (EPN). In converged access for mobile applications, the ASR 920 serves as an effective platform for aggregating traffic from multiple base stations. Its support for Ethernet and IP interfaces, along with MPLS transport, is crucial for mobile backhaul. The inclusion of Synchronous Ethernet (SyncE) and IEEE-1588 timing services addresses the critical synchronization needs of modern mobile networks. Notably, the ASR-920-12SZ-IM and ASR-920-12SZ-IM-CC models feature a built-in GNSS receiver, enabling them to function as a grandmaster clock, particularly beneficial for small cell aggregation and backhaul. These specific models also offer Cisco UPOE® technology for powering small cell radios. Furthermore, the temperature-hardened design allows for deployment in challenging outdoor environments. Security is a paramount concern in small cell deployments due to their dispersed locations. The ASR-920-12SZ-IM and ASR-920-12SZ-IM-CC models integrate IP Security (IPSec) with a built-in hardware crypto engine, providing scalable protection against vulnerabilities. For Metro Ethernet access, the ASR 920 is optimized for remote access and central office deployments, as well as for smaller aggregation sites requiring a compact, full-featured platform. It provides the service flexibility needed for Layer 2, IP, and MPLS transport, supporting advanced L2VPN, L3VPN, and multicast services. Beyond applications, the ASR 920 series offers compelling differentiators. Its flexible deployment options are highlighted by the compact 1RU form factor (1.5RU for the ASR-920-24SZ-IM with interface module), allowing installation in confined spaces. The extended temperature range and various mounting options facilitate deployment in locations with minimal environmental control. High availability is ensured through redundant AC and DC power supply options. The platform is powered by the Cisco Carrier Ethernet ASIC, a purpose-built integrated circuit designed for service provider needs, delivering uninterrupted line-rate performance for complex services like Access Control Lists (ACLs) and hierarchical QoS (HQoS). Service enhancement features include per-traffic-class metering, bidirectional packet and byte statistics, and comprehensive Operations, Administration, and Maintenance (OAM) functions like Layer 2 Connectivity Fault Management (CFM), IP SLAs for Layer 3, and MPLS OAM. Collectively, these features and differentiators enable service providers to deploy differentiated, cost-effective services with enhanced operational efficiency.

Hardware Architecture and Interface Modules

The Cisco ASR 920 Series routers boast a robust hardware architecture designed for carrier-grade performance and reliability in varied deployment environments. The core of the platform is powered by the Cisco Carrier Ethernet ASIC, specifically engineered to handle the demanding requirements of service provider networks. This custom ASIC architecture is fundamental to the routers’ ability to deliver essential Carrier Ethernet technologies such as hierarchical quality of service (HQoS), Multiprotocol Label Switching (MPLS), and Virtual Private LAN Services (VPLS) at line rate without compromising performance, even when applying complex service capabilities like access control lists (ACLs). The ASR 920 series offers several high-port-density models, each providing flexibility in port configurations. These fixed-form-factor platforms are versatile, accommodating both Gigabit Ethernet and 10 Gigabit Ethernet deployments. The physical dimensions of the routers are designed for space efficiency. The ASR-920-12SZ-IM and ASR-920-12SZ-IM-CC models feature a 1RU form factor, measuring 1.73 x 17.5 x 11.28 inches (44 x 444.5 x 286.54 mm). The ASR-920-24TZ-M and ASR-920-24SZ-M models also occupy a 1RU space, with dimensions of 1.72 x 17.5 x 10 inches (43.7 x 444.5 x 255 mm). The ASR-920-24SZ-IM model, designed to accommodate an interface module (IM), has a 1.5RU form factor with dimensions of 2.6 x 17.5 x 10.6 inches (66 x 444.5 x 270 mm). The weight varies slightly between models and depending on the populated components, with empty chassis weights ranging from 8.3 lb (3.8 kg) for the ASR-920-24TZ-M to 10.3 lb (4.7 kg) for the ASR-920-24SZ-IM. Fully configured with two AC power supplies and an IM card, the ASR-920-12SZ-IM weighs 13.44 lb (6.1 kg) and the ASR-920-24SZ-IM weighs 14.1 lb (6.4 kg). The ASR-920-24TZ-M and ASR-920-24SZ-M models weigh 10.5 lb (4.8 kg) with two AC PSUs. All chassis support front-to-back airflow, with the ASR-920-24SZ-IM additionally supporting side-to-back airflow. The routers are equipped with two power supply bays supporting redundant AC or DC power supplies. Key hardware components, including power supplies, interface modules, and fan trays, are field-replaceable, enhancing maintainability and reducing downtime. The design incorporates features like “dying gasp” for power indicators and external alarm inputs to facilitate prompt detection of issues in remote deployments. The platform also supports various rack mounting options, including ETSI, 19-inch, and 23-inch kits, providing flexibility for installation in different types of cabinets and racks. The combination of a powerful custom ASIC, flexible configuration options, and robust physical design ensures the ASR 920 series can meet the demanding requirements of modern access networks.

Supported Technologies and Features

The Cisco ASR 920 Series Aggregation Services Routers are engineered to support a wide array of advanced technologies and features crucial for carrier-grade access networks. A cornerstone of their capabilities is the comprehensive support for Multiprotocol Label Switching (MPLS). By extending MPLS into the access layer, these routers empower service providers to initiate MPLS-based Layer 2 and Layer 3 VPN services directly from the network edge. This capability facilitates the consolidation of the network control plane, simplifying operations and reducing complexity. The ASR 920 supports full Virtual Private LAN Services (VPLS), enabling the definition of multipoint services. Flexibility in VPLS deployment is provided through support for both full mesh and Hierarchical VPLS (H-VPLS) configurations. This extensive MPLS feature set is a significant advantage for providers looking to build scalable and efficient VPN services. Quality of Service (QoS) is another critical area where the ASR 920 series excels. The routers support service-aware QoS, allowing service providers to offer highly differentiated SLAs tailored to specific service requirements. The hierarchical QoS (HQoS) capabilities on the ASR 920 scale to eight queues per service, with traffic management across three levels of scheduling. The buffer volumes are designed to accommodate the demanding needs of modern wireline and wireless applications, ensuring consistent and predictable service delivery. For mobile network deployments and other time-sensitive applications, the ASR 920 provides essential timing and synchronization services. This includes support for Synchronous Ethernet (SyncE), complete with Ethernet Synchronization Messaging Channel (ESMC) and Synchronization Status Messages (SSM) for accurate clock-source traceability. The routers also support IEEE-1588 for precise timing synchronization. The ASR-920-12SZ-IM and ASR-920-12SZ-IM-CC models further enhance timing capabilities with a built-in GNSS receiver, enabling them to function as a grandmaster clock for aggregated small cell traffic, a vital feature for meeting strict timing requirements in cellular networks. Operational efficiency is enhanced through various features. The routers incorporate OAM functions, including Layer 2 Connectivity Fault Management (CFM), IP Service Level Agreements (SLAs) for Layer 3, and MPLS OAM, facilitating network management, troubleshooting, and service turn-up and restoration. Features like “dying gasp” and external alarm inputs provide essential monitoring capabilities for remote deployments, giving service providers visibility into the health and status of network elements. The support for Cisco Universal Power over Ethernet (Cisco UPOE®) on specific models (ASR-920-12SZ-IM/ASR-920-12SZ-IM-CC) offers a convenient power solution for connected devices like small cell radios. The licensing mechanism provides a flexible, pay-as-you-grow model, allowing service providers to activate additional interface capacity (1 Gigabit and 10 Gigabit Ethernet) as needed, optimizing investment. Combined, these supported technologies and features provide a robust and adaptable platform for service providers to deliver a wide range of services efficiently and reliably.

Software and Management

The operational backbone of the Cisco ASR 920 Series Aggregation Services Routers is the Cisco IOS® XE Software. This modular operating system is specifically designed to provide a high degree of flexibility, feature velocity, and robust resiliency, critical for continuous service availability in carrier networks. Cisco IOS XE Software allows for granular feature packaging, enabling service providers to deploy only the functionalities necessary for their specific needs, thereby optimizing resource utilization. Its modular architecture also facilitates faster integration of new features and ensures greater stability by isolating components. The software capabilities are extensive, supporting the vast feature set offered by the ASR 920 series, including advanced routing protocols, MPLS functionalities, comprehensive QoS mechanisms, and security features. For an in-depth understanding of the supported features and capabilities, referring to the specific Cisco IOS XE Software data sheet for the ASR 920 Series is recommended. Network management for the Cisco ASR 920 routers is seamlessly integrated within the Cisco Prime™ for Evolved Programmable Network (EPN) architectures. Cisco Prime provides an end-to-end network management solution that streamlines the design, provisioning, and management of carrier-grade networks. This comprehensive platform centralizes and automates key operational tasks, including service design, fulfillment, assurance, and performance analysis. By leveraging Cisco Prime, service providers and enterprises can significantly reduce operational costs while maintaining high levels of customer satisfaction through enhanced service reliability and performance. The integration with Cisco Prime simplifies complex network operations, providing a unified view and control point for the ASR 920 routers within the broader network infrastructure. This unified management approach is essential for optimizing operational efficiency and ensuring consistent service delivery across the access layer. The combination of the feature-rich and resilient Cisco IOS XE Software and the comprehensive network management capabilities provided by Cisco Prime for EPN architectures ensures that the ASR 920 series is not only a powerful hardware platform but also easily manageable and programmable, aligning with the requirements of modern service provider networks.

Interface Modules and Specifications

The Cisco ASR 920 Series Aggregation Services Routers support a variety of interface modules, offering service providers flexibility in configuring port density and types to meet diverse network requirements. These modules are designed to provide connectivity across different media types and speeds, from T1/E1 to 10 Gigabit Ethernet, as well as SONET/SDH interfaces. For the ASR-920-12SZ-IM and ASR-920-12SZ-IM-CC models, supported interface modules include the A900-IMA8T (8 port 10/100/1000 Ethernet), A900-IMA8S (8 port SFP Gigabit Ethernet), A900-IMA8D (8 port RJ48C T1/E1), A900-IMA16D (16 port T1/E1), A900-IMA32D (32 port T1/E1), A900-IMA1X (1 port 10GE XFP), A900-IMA2Z (2 port 10GE SFP+/XFP), A900-IMA8T1Z (Combo 8 port 10/100/1000 and 1 port 10GE), A900-IMA8S1Z (Combo 8 SFP GE and 1 port 10GE), and A900-IMA4OS (4 port OC3/STM1 or 1 port OC12/STM4). These modules are supported from various Cisco IOS XE releases, as detailed in the product documentation. The ASR-920-24SZ-IM model supports a similar range of interface modules, including A900-IMA8T, A900-IMA1X, A900-IMA2Z, A900-IMA8D, A900-IMA16D, A900-IMA32D, A900-IMA4OS, and A900-IMA8T1Z, with support also starting from specific Cisco IOS XE releases. Each interface module offers specific capabilities. For instance, the Cisco ASR 900 Series 8-Port 1GE RJ-45 Module delivers eight ports of Gigabit Ethernet, Fast Ethernet, and Ethernet connectivity via RJ-45 connectors, with software-selectable speeds. The Cisco ASR 900 Series 8-Port 1GE SFP Module provides eight SFP ports for Gigabit Ethernet and Fast Ethernet, with speed selection dependent on the installed optic. For higher bandwidth requirements, the Cisco ASR 900 Series 1-Port 10GE XFP Module and the Cisco ASR 900 Series 2-Port 10GE XFP/SFP+ Module offer 10 Gigabit Ethernet connectivity using XFP or SFP+ optics. It is important to note that while higher combined interface bandwidth might be physically accepted, the router’s guaranteed functionality is limited by its maximum interface throughput, and oversubscription is not supported. TDM connectivity is provided by the Cisco ASR 900 Series 8-Port, 16-Port, and 32-Port T1/E1 Modules, supporting software configuration for T1 or E1 mode and utilizing RJ-48C connectors or external patch panels with breakout cables. The Cisco ASR 900 Series 4-Port OC3/STM1 module offers SONET/SDH connectivity, supporting channelized and clear channel modes for various speeds (OC-3, STM-1, OC-12, STM-4) and T1/E1 mapping, with connectivity via SFP optics and per-port software licensing for flexible deployment. The availability of these diverse interface modules ensures the ASR 920 series can be tailored to a wide range of access network requirements.

Technical Specifications

The Cisco ASR 920 Series Aggregation Services Routers are built with specific technical specifications to deliver reliable performance in demanding network environments. These specifications cover physical attributes, power requirements, and environmental tolerances. The dimensions vary slightly depending on the model and configuration. The 1RU models (ASR-920-12SZ-IM/ASR-920-12SZ-IM-CC, ASR-920-24TZ-M, ASR-920-24SZ-M) have a height of approximately 1.72-1.73 inches, a width of 17.5 inches, and a depth of 10-11.28 inches. The 1.5RU ASR-920-24SZ-IM, when equipped with an Interface Module, measures 2.6 x 17.5 x 10.6 inches. The weight of the empty chassis ranges from 8.3 lb (3.8 kg) to 10.3 lb (4.7 kg), while fully configured weights with two AC PSUs and an IM card can reach up to 14.1 lb (6.4 kg). All models support rack mounting with available ETSI, 19-inch, and 23-inch kits. The airflow in the 1RU models is typically front-to-back, while the ASR-920-24SZ-IM supports both front-to-back and side-to-back airflow. Redundancy is key, with all models featuring two power supply bays supporting either AC or DC power supply units. The Mean Time Between Failures (MTBF) ratings demonstrate the reliability of the components, with chassis MTBF ranging from 407,230 to 582,610 hours depending on the model, and individual power supply and fan tray MTBF figures also indicating high reliability. Power consumption varies by model and configuration, with maximum consumption ranging from 130W to 180W and typical consumption between 100W and 130W (without PoE). The AC power supplies operate on a voltage range of 85V AC to 264V AC at 47 to 63 Hz. DC power supplies support voltage ranges of -18 to -32 VDC or -36 to -72 VDC, with some models supporting a wider range of -18 VDC to -32 VDC or -40 VDC to -72 VDC. The ASR 920 series is designed to operate in challenging environmental conditions, with an extended operating temperature range from -40°C up to 70°C, though this can be limited by the installed optics. Altitude support varies with temperature, ranging up to 13,000 feet (4000m) at lower temperatures. The routers tolerate relative humidity from 5 to 95 percent, noncondensing. Acoustic noise emissions are managed, typically peaking at 55 dBA (59 dBA for ASR-920-12SZ-IM/ASR-920-12SZ-IM-CC) during peak operation at 20°C and are compliant with NEBS GR-63-Core Issue 3 sound power levels at 27°C. Storage environment specifications include temperatures from -40°C to 70°C and altitudes up to 15,000 feet (4570m). The routers are also designed to meet Seismic Zone 4 requirements and a range of safety and compliance standards including UL, CSA, IEC, EN, and NEBS levels, as well as power substation system compliance for the ASR-920-12SZ-IM model and various network synchronization standards. These detailed specifications highlight the robust and resilient design of the Cisco ASR 920 series for deployment in diverse and demanding access network environments.

Ordering Information

Ordering the Cisco ASR 920 Series Aggregation Services Routers and their associated components is facilitated through a clear catalog of product IDs and descriptions. Service providers can select from various base chassis models offering different port densities and functionalities. The high-port-density models discussed include: ASR-920-12SZ-IM, which is the Cisco ASR920 Series with 12GE and 4-10GE ports, along with a single Interface Module (IM) slot; ASR-920-12SZ-IM-CC, the conformal coated version of the ASR-920-12SZ-IM, designed for enhanced durability in harsh environments; ASR-920-24SZ-M, a modular PSU model featuring 24GE Fiber and 4-10GE ports; ASR-920-24SZ-IM, another modular PSU model providing 24GE and 4-10GE ports, plus an IM slot for expandable connectivity; and ASR-920-24TZ-M, a modular PSU model equipped with 24GE Copper and 4-10GE ports. In addition to the chassis, several field-replaceable hardware components are available. These include various fan trays such as ASR-920-FAN-TRAY, A920-FAN-TRAY-CC (conformal coated), ASR-920-FAN-F (for fixed chassis), and ASR-920-FAN-M (for modular chassis). Power supply options are available for both AC and DC inputs: A920-PWR400-A (400W AC PSU), A920-PWR400-D (400W DC PSU), ASR-920-PWR-A (AC Power Supply), and ASR-920-PWR-D (DC Power Supply). Blank covers for power supply and interface module slots, such as ASR920-PWR-BLNK, ASR920-PWR-BLANK, and A900-IMA-BLANK, are also orderable. To facilitate installation, various mounting accessories are available, including A920-RCKMT-ETSI (ETSI rack mount), A920-RCKMT-19 (EIA 19” rack mount), and A920-RCKMT-23 (EIA 23” rack mount). The ASR-920-DRIP-TRAY is an accessory applicable specifically for the modular ASR-920-24SZ-IM model. Interface modules, as detailed in previous sections, are also ordered separately based on the required connectivity. Examples include Ethernet modules (e.g., A900-IMA8T, A900-IMA8S), TDM modules (e.g., A900-IMA8D, A900-IMA16D, A900-IMA32D), and SONET/SDH modules (A900-IMA4OS), along with combined interface modules (e.g., A900-IMA8T1Z, A900-IMA8S1Z). Cables and patch panels are available for specific modules like the 16-port and 32-port T1/E1 modules (e.g., CABLE-16T1E1, PANEL-16-BNC, PANEL-32-RJ48). Customers interested in purchasing these products or learning more about global discount offers are encouraged to visit https://itmall.sale.

Service and Support

Cisco understands that deploying and maintaining carrier-grade network infrastructure requires robust support services. To ensure customer success and optimize network operations, Cisco offers a comprehensive portfolio of service and support programs for the ASR 920 Series Aggregation Services Routers. These services are delivered through a combination of experienced personnel, proven processes, advanced tools, and a strong network of partners. The primary goal of these services is to safeguard network investments, maximize operational efficiency, and prepare the network for the integration of new applications, ultimately enhancing network intelligence and business capabilities. Detailed information about the available Cisco Services can be found on Cisco.com, specifically on the Cisco Technical Support Services and Cisco Advanced Services pages. Cisco is dedicated to helping customers reduce their Total Cost of Ownership (TCO) by providing services that ensure Cisco products operate efficiently, maintain high availability, and benefit from the latest system software updates. The service and support offerings for the ASR 920 series are part of the broader Cisco Carrier Ethernet Switching Service and Support solution and can be procured directly from Cisco or through authorized resellers. Key service offerings include Advanced Services, which provide expert assistance for network planning, design, implementation, and optimization. These services are designed to supplement existing customer staff, ensure that deployed functionalities align with specific requirements, and mitigate project risks. Examples of Advanced Services include Cisco Total Implementation Solutions (TIS), available directly from Cisco, and Cisco Packaged TIS, offered through resellers. These services encompass project management, site surveys, configuration and deployment, installation, testing, and cutover, training, and support for major network changes. Another critical component is Cisco SP Base Support and Service Provider-Based Onsite Support, available directly from Cisco, and the packaged versions through resellers. These foundational support services provide essential resources such as 24-hour access to software updates, web access to technical repositories, telephone support through the Cisco Technical Assistance Center (TAC), and advance replacement of hardware parts. These programs are designed to facilitate proactive or expedited problem resolution, reduce network downtime, and allow customers to leverage Cisco’s expertise and knowledge base, contributing to a lower TCO. Furthermore, Cisco Capital offers flexible payment solutions designed to help customers acquire the necessary technology to achieve their objectives, facilitate business transformation, and remain competitive. Available in over 100 countries, Cisco Capital’s payment solutions can help spread the cost of hardware, software, services, and complementary third-party equipment into manageable, predictable payments, aiding in conserving capital and accelerating growth. Through this comprehensive suite of service and support offerings, Cisco ensures that customers deploying the ASR 920 series are well-supported throughout the product lifecycle.