Full English Description for Cisco ASR 1001

1. Official Short Order Description (Cisco Datasheet Standard Format)

ASR 1001: Cisco ASR 1000 Series 1RU Compact Aggregation Services Router, integrated fixed Embedded Services Processor (ESP), base licensed throughput 2.5 Gbps upgradable to 5 Gbps via software license, integrated Route Processor 1 with default 4GB DDR memory (upgradable to 8GB), embedded 8GB eUSB flash storage, 1 SPA shared port adapter expansion slot, support for mixed SPA interface modules (1GE, OC-3 POS, T3, T1/E1 channelized), built-in management Ethernet, console/AUX & USB ports, single hot-swappable fan tray, optional single/redundant AC/DC power supplies, runs modular Cisco IOS XE, delivers integrated MPLS, IPsec VPN, stateful firewall, AVC QoS and advanced routing, designed for enterprise branch aggregation, small data center edge, managed service customer premise, internet gateway and traditional private WAN convergence deploymentsCisco.

2. Complete Detailed Product Overview

Product Line Positioning

Cisco ASR 1001 is the entry-level 1RU fixed-chassis model of ASR 1000 aggregation services router family, positioned below ASR 1001-X / ASR 1001-HX higher-performance variants. It adopts an all-in-one integrated design combining route processor, embedded forwarding ESP and SPA expansion slot within compact 1RU rack space, optimized for cost-sensitive medium branches, small service provider POPs and edge aggregation sites that do not require large built-in 10GE port density. It inherits the full IOS XE modular software architecture of the entire ASR 1000 series, supporting unified carrier-grade routing, security and multi-service convergence, replacing legacy Cisco 7200 small aggregation routersCisco.

Core Hardware Interface Layout

Expansion Slot Architecture

1 integrated SPA Interface Processor (SIP) hosting1 SPA slot, hot-swappable without chassis power cycle

Supported SPA modules for ASR 1001:
- 4×1GE SPA (SFP fiber/copper)
- 2×OC-3 POS/ATM SPA
- 4×T3 SPA
- 8×T1/E1 channelized SPA for legacy voice/WAN trunk circuitsCisco

Fixed Management & Auxiliary Ports

1×10/100/1000BASE-T RJ45 out-of-band management Ethernet port
1×RJ45 serial console port + 1×Mini-USB Type B dual console access
1×RJ45 AUX port for remote dial-out out-of-band management
2×USB 2.0 Type-A host ports for license file import, offline configuration backup and secure token storage
Multi-color front-panel status LEDs for system power, fan, SPA slot, fault alarm and boot status

Processor, Memory & Storage

Embedded Services Processor (ESP)

Fixed non-modular ESP forwarding plane; base throughput locked at 2.5 Gbps, software license upgrade unlocks maximum 5 Gbps aggregate forwarding capacity, integrated hardware crypto acceleration for IPsec VPN traffic processingCisco.
Route Processor (RP1)

Integrated RP1 control plane CPU; factory default 4GB DDR ECC memory, field-upgradable to 8GB. Memory capacity determines routing table scale:

4GB: Up to 500,000 IPv4 / IPv6 routes
8GB: Up to 1,000,000 IPv4 / IPv6 routesCisco

Storage

Fixed 8GB industrial eUSB internal flash for IOS XE boot images, crash dumps, logging and license storage; no built-in HDD/SSD bay (storage expansion unavailable on base ASR 1001 hardware).

Power, Mechanical & Environmental Specifications

Form Factor: Standard 1RU 19-inch rack-mount chassis
Airflow: Front-to-back cooling via single hot-swappable fan tray
Power Supply Options: Single AC/DC power supply as standard; optional dual redundant AC/DC PSU for high-availability deployments
Operating Temperature: 0°C ~ +40°C standard indoor data center / equipment room
Storage Temperature: -40°C ~ +70°C
Humidity: 5%–90% non-condensing relative humidity
Compliance: UL 60950-1, IEC 60950-1, FCC Class A, CE certified

Official Performance Benchmarks

Base forwarding throughput: 2.5 Gbps (software upgradeable to 5 Gbps NDR)
Hardware-accelerated IMIX IPsec VPN throughput: Up to 1.2 Gbps
Maximum concurrent stateful firewall sessions: 250,000
Maximum concurrent SVTI/DMVPN overlay tunnels: 1,000
Full hardware offload support for MQC QoS shaping/policing, NAT, MACsec and AES-256 encryption

Software & Core Supported Capabilities (Modular IOS XE)

Carrier-Grade Routing & MPLS Suite

IPv4/IPv6 dual-stack forwarding, BGP, OSPF, EIGRP, IS-IS, static routing, PBR, BFD fast convergence; full MPLS feature stack including L3VPN, VPLS, EoMPLS, segment routing, route reflector function for service provider multi-tenant networks.
Integrated WAN & SD-WAN/IWAN Capabilities

Cisco Intelligent WAN (IWAN), DMVPN, FlexVPN, VXLAN EVPN multi-site segmentation, multi-path hybrid internet/MPLS path optimization, zero-touch provisioning compatible with DNA Center centralized orchestration.
Unified Integrated Security Stack

Hardware IPsec/SSL VPN acceleration, zone-based stateful firewall (ZBFW), NAT/CGNAT, IDS/IPS traffic inspection, MACsec link encryption, AAA RADIUS/TACACS+, ACL policy filtering, TLS encrypted remote management access.
Application Visibility & QoS Management

NBAR2 AVC deep packet inspection for full application signature recognition, hierarchical MQC QoS, IP SLA performance monitoring, NetFlow/IPFIX flow export for network telemetry and traffic analytics.
High Availability & Resilience Mechanisms

NSF Nonstop Forwarding, SSO Stateful Switchover, ISSU In-Service Software Upgrade for zero-downtime image updates, HSRP/VRRP/GLBP gateway redundancy, BFD sub-second WAN failure detection.
Automation & Programmability

CLI/SSH console access, REST API, NETCONF/YANG data models, streaming telemetry for cloud-native network automation and lifecycle management.

Typical Deployment Scenarios

Medium enterprise regional branch aggregation gateways, small data center north-south internet edge routers, service provider small POP customer aggregation CPE, traditional T1/E1/OC3 private MPLS WAN convergence sites, hybrid cloud secure interconnection gateways, cost-effective multi-service VPN firewall aggregation for small-to-medium businesses.

3. E-commerce Short Marketing Description

Cisco ASR 1001 1RU Compact Aggregation Services Router, integrated ESP forwarding engine, base 2.5Gbps throughput upgradable to 5Gbps, RP1 with 4GB DDR memory (max 8GB), 8GB eUSB flash, 1 SPA expansion slot supporting GE/OC3/T3/T1E1 modules, redundant PSU optional, modular IOS XE OS with MPLS, IPsec VPN, stateful firewall and IWAN SD-WAN, ideal for enterprise branch aggregation, small data center edge and service provider POP CPE deployments.

4. Product Catalog Keyword Tags

Cisco, ASR 1001, ASR 1000 Series, 1RU Aggregation Services Router, Compact Edge WAN Gateway, Integrated ESP Forwarding Plane, SPA Shared Port Adapter Expansion, IOS XE Modular OS, MPLS L3VPN Support, Hardware IPsec VPN Acceleration, IWAN Intelligent WAN, Enterprise Branch Aggregation, Service Provider Small POP CPE, Small Data Center Internet Edge Router

Naming Rule Explanation

ASR = Aggregation Services Router series (carrier/enterprise multi-service aggregation platform)
1001 = Entry-level 1RU fixed-chassis model of ASR 1000 family (distinguished from higher-performance ASR 1001-X / 1001-HX variants)


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