Full English Description for Cisco ASR 900 Series

1. Official Short Order Description (Datasheet Standard Format)

Cisco ASR 900 Series: Cisco Compact 3RU Modular Carrier-Grade Aggregation Services Routers powered by Route Switch Processor (RSP) integrated forwarding architecture, fully FRU hot-swappable design supporting dual redundant RSP control/forwarding modules, up to six hot-swappable Interface Module (IM) slots for mixed 1G/10G SFP/SFP+, channelized T1/E1/T3, and POS optical interfaces, integrated BITS / IEEE 1588 PTP / SyncE precision timing for mobile transport and utility substation deployments, dual redundant AC/DC power supplies and redundant fan trays, IOS XE modular operating system with full Carrier Ethernet, L2/L3 MPLS VPN, mobile backhaul aggregation, hardware IPsec acceleration and hierarchical QoS capabilities, optimized for small service provider POP, 4G/5G RAN aggregation, enterprise regional carrier edge, utility field area network and remote broadband BRAS convergence deploymentsCisco.

2. Complete Detailed Product Overview

Product Line Positioning

The Cisco ASR 900 Series is a compact 3RU shallow-depth modular carrier aggregation platform, differentiated from large high-capacity ASR 9000/IOS XR core chassis and enterprise ASR 1000 IOS XE routers. It targets mid-sized edge aggregation sites requiring compact rack space, full carrier-grade redundancy, robust network timing synchronization and converged wireline/mobile service delivery. It runs IOS XE (not IOS XR), balancing cost, port scalability and low power consumption for remote POP, cell site aggregation and utility FAN deployments where deep large chassis cannot be deployedCisco.

Core Modular FRU Hardware Architecture

Dual Redundant RSP Route Switch Processor Slots

Two independent hot-swappable RSP slots supporting RSP1A, RSP1B, RSP2A integrated control+forwarding modules for 1+1 SSO/NSF high availability. Each RSP combines x86 control CPU, dedicated Carrier Ethernet ASIC forwarding plane, integrated hardware crypto co-processor and timing clock circuitry. Memory expandable up to 16GB ECC DDR for large routing tables and mass VPN tunnel terminationCisco.

Six Hot-Swap Interface Module (IM) Slots

All IM slots support OIR online insertion and removal without chassis power cycle, compatible with full ASR 900 IM portfolio for hybrid fiber, copper and legacy trunk convergence:

Ethernet IMs: 8×1GE SFP, 4×10GE SFP+ high-density fiber aggregation modules
Channelized trunk IMs: 16×T1/E1, 4×T3 serial voice/mobile backhaul trunk modules
Optical IMs: OC-3 / OC-12 POS/ATM long-haul fiber uplink modules
Serial IMs for DNP3 / Modbus industrial SCADA utility communication

Fixed Timing, Management & Auxiliary Interfaces

Integrated multi-layer timing subsystem: BITS clock port, IEEE 1588 PTP grandmaster/slave, SyncE Stratum 3 synchronization for 5G mobile fronthaul and power grid substation automation
1×10/100/1000BASE-T out-of-band management Ethernet port
Dual console access: RJ45 serial console + Mini-USB Type B console port for local offline configuration
1×RJ45 AUX dial-out port for backup analog modem remote management
Dual USB 2.0 Type-A host ports for license import, offline config backup and firmware image upload
Front-panel multi-color LED array monitoring RSP health, IM link status, power supply, fan tray, timing lock, crypto activity and system fault alarms

Processor, Memory & Storage

Integrated RSP Forwarding ASIC: Fixed embedded data plane on each RSP with scalable licensed throughput tiers ranging from 10 Gbps up to 80 Gbps aggregate IMIX forwarding capacity, native hardware offload for MACsec, IPsec, NAT and multicast replication.
Control Plane Memory: Base 4GB ECC DDR memory per RSP, field-upgradable to 8GB / 16GB ECC RAM for large-scale BGP route reflectors and thousands of mobile backhaul tunnels.
Storage: 8GB industrial eUSB bootflash for IOS XE modular images, crash dumps and logging; optional internal SATA SSD tray for persistent NetFlow/IPFIX telemetry archiving.

Power, Mechanical & Environmental Specifications

Form Factor: Standard 3RU 19-inch shallow-depth rack-mount chassis
Cooling: Dual hot-swappable redundant fan trays with front-to-back airflow, OIR zero-downtime fan replacement
Power Supply Architecture: Dual hot-swappable wide-range AC (100–240VAC) / DC (-48VDC) power supplies for N+1 carrier-grade HA
Operating Temperature: 5°C ~ +40°C continuous indoor central office / equipment room operation; short-term tolerance -5°C ~ +50°C
Storage Temperature: -40°C ~ +70°C
Humidity: 10%–90% RH non-condensing operating humidity
Compliance: UL 62368-1, IEC 60950-1, NEBS GR-1089 / GR-63, FCC Class A, CE certified for carrier central office and utility substation deploymentCisco.

Official Performance Benchmarks

Scalable aggregate IMIX forwarding throughput: 10 Gbps base, up to 80 Gbps full software license
Hardware-accelerated IMIX IPsec VPN throughput: Max 12 Gbps
Maximum concurrent L2VPN/L3VPN overlay tunnels: Up to 6,000 tunnels with 16GB RSP memory
Concurrent stateful firewall sessions: Up to 1.2 million sessions
Full hardware offload support for NBAR2 AVC deep packet inspection, MQC hierarchical QoS, MACsec link encryption and multicast replication.

Software & Core Supported Capabilities (Modular IOS XE)

Carrier Ethernet & Full MPLS Suite

IPv4/IPv6 dual-stack forwarding, BGP, OSPF, IS-IS, Segment Routing, BFD fast convergence; complete L2VPN (VPLS, EVPN) and L3VPN MPLS feature stack optimized for mobile transport, broadband multi-tenant and utility private WAN architectures.
4G/5G Mobile Backhaul Aggregation

Native IEEE 1588 PTP, SyncE and BITS timing synchronization, service-aware QoS slicing for mobile voice/data traffic, zero-touch provisioning via vManage orchestrator for mass cell site gateway deployment.
Integrated Carrier-Grade Security Stack

Hardware wire-speed IPsec/MACsec acceleration, zone-based stateful firewall, CGNAT large-scale subscriber address translation, AAA RADIUS/TACACS+, TLS encrypted remote management and traffic segmentation for IT/OT utility convergence.
Application Visibility & Hierarchical QoS Management

NBAR2 full application signature recognition, hierarchical MQC traffic shaping/policing, IP SLA performance monitoring, NetFlow/IPFIX streaming telemetry for centralized carrier traffic analytics and capacity planning.
Carrier-Grade High Availability Mechanisms

NSF Nonstop Forwarding, SSO Stateful Switchover between dual RSP modules, ISSU In-Service Software Upgrade for zero-downtime firmware updates, HSRP/VRRP gateway redundancy, sub-second BFD failure detection for mobile backhaul convergence.
Automation & Programmability

CLI/SSH console access, REST API, NETCONF/YANG data models, streaming telemetry, native integration with Catalyst Center and NSO Network Services Orchestrator for mass remote POP and cell site lifecycle automation.

Typical Deployment Scenarios

Small service provider remote POP multi-tenant aggregation CPE, 4G/5G RAN cell site backhaul gateways, regional enterprise carrier edge routers, smart power grid utility substation FAN aggregation nodes, solar/wind renewable energy remote monitoring hubs, compact broadband BRAS subscriber termination sites requiring 3RU shallow rack depth, full hardware redundancy and integrated precision timing synchronization.

3. E-commerce Short Marketing Description

Cisco ASR 900 Series 3RU Compact Modular Carrier Aggregation Services Router, dual redundant RSP integrated forwarding modules scalable up to 80Gbps throughput, upgradable ECC DDR memory up to 16GB, 8GB eUSB bootflash + optional SSD mass storage, six hot-swappable IM interface slots for 1G/10G fiber and T1/E1/T3 trunk modules, native BITS/PTP/SyncE precision timing, dual redundant AC/DC PSU & fan trays, modular IOS XE OS with full Carrier Ethernet, MPLS L2/L3VPN and mobile backhaul aggregation capabilities, ideal for small service provider POP, 5G RAN aggregation and utility substation FAN deployments.

4. Product Catalog Keyword Tags

Cisco, ASR 900 Series, 3RU Compact Modular Carrier Aggregation Router, Dual Redundant RSP Route Switch Processor, Integrated Timing BITS/PTP/SyncE, Six Hot-Swap IM Interface Slots, NEBS GR-1089 Certified, Scalable 10–80 Gbps Forwarding Throughput, Hardware IPsec/MACsec Acceleration, IOS XE Modular Operating System, Carrier Ethernet EVPN/VPLS, MPLS L3VPN Multi-Tenant Support, 4G/5G Mobile Backhaul Gateway, Utility Smart Grid FAN Aggregation, Remote Small POP CPE, Compact Shallow-Depth Carrier Edge Router

Naming Rule Explanation

ASR = Aggregation Services Router carrier/enterprise multi-service aggregation platform
900 = Compact 3RU carrier edge series (separate from large IOS XR-based ASR 9000 high-density core chassis family)
Series = Unified platform covering base ASR 902 / ASR 903 hardware variants sharing identical IOS XE software architecture and RSP/IM modular expansion ecosystem


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