Cisco ASR 1004 Router: an aggregation services router designed for the enterprise WAN edge

TXO has one of the largest selections of parts available for the Cisco ASR 1004 router, as well as offering a repair service for many components for the Cisco 1000 series. We can also offer help and advice for your existing Cisco equipment. All replacement parts are guaranteed under our one year warranty.

Contact us now to discover how our multilingual team can assist you with your requirements.


Availability and shipping for Cisco ASR 1004 Router

At TXO we are one of the largest stockists of components for the Cisco 1004 ASR router. Most Cisco parts are dispatched immediately upon receipt of purchase order and delivered within 1-3 days in the UK. and 3-5 days for international delivery. Contact us today to get an exact quote and estimated delivery times for your order. 


About the Cisco ASR 1004 Router

The Cisco ASR 1004 router is a high-performance, scalable, and highly reliable router for enterprise level businesses and service providers. It forms part of the 1000 series of aggregated service routers, which was released by American technology company, Cisco Systems as part of their Borderless Network Architecture. 

Created as a transitional step from the Cisco 7200 series of CPE routers and the larger 7600 and 6500 series, the Cisco ASR 1004 was specifically designed to target enterprise level businesses that wanted a high-performing edge networking solution for their private WAN, or as a WAN aggregation and internet gateway device. This flexibility meant the Cisco ASR 1004 offered a cost-effective and future-proof solution and a clear upgrade path for businesses looking to enhance their existing edge architecture. 

As well as appealing to enterprise businesses the Cisco ASR 1004 was also popular with Service providers. It could be used as a broadband layer, Layer 2 Tunnelling Protocol (L2TP) access concentrator, an L2TP Network Server, or as a Layer 3 VPN (L3VPN) provider edge. 

The Cisco ASR 1000 series was built around two main categories. A modular chassis version, which included the ASR 1004, ASR 1006 and ASR 1009, and a fixed chassis model which included the ASR 1001, ASR 1002 and ASR 1002-X. Other than the fixed and modular chassis design, the main difference was in the use of the processors used. The Modular design contained 3 changeable processor options, whereas the fixed chassis could house an embedded RP1 processor. 

The Cisco ASR 1004 was one of the first routers from Cisco to feature their QuantumFlow Processor. Operating as the routing engine for the Cisco 1000 series, it was specifically designed to handle the high demands that have become expected in a service aggregation router. This fully programmable processor was capable of parallel processing, giving network operators greater levels of customised QoS including advanced memory management and integrated services programmability.

Running the Cisco IOS XE software, the ASR 1004 also had optional redundant processor and software support which helped improve the overall network resiliency whilst offering greater degrees of network management tools. The Cisco ASR 1004 also had built-in software redundancy to help maintain system operations in the event of any technical issues. 

Built around a 4-rack unit (RU) form factor which could support up to 8 SPA’s (shared port adaptors), the Cisco ASR 1004 also featured one route processor and one embedded services processor, which allowed for enhanced control plane and data scalability, whilst also allowing for potential future upgrades to be conducted with minimal effort.

This high-performance and scalable architecture meant the Cisco ASR 1004 could scale up to 40 Gbps making it capable of handling high-bandwidth applications whilst offering high-speed connectivity and low latency. 

As a service edge router with security built at the core of its design, the Cisco ASR 1004 featured a full array of high-performance WAN security, which gave network operators greater control levels of threat prevention and compliance. As standard all Cisco ASR 1004 routers featured VPN termination, firewalls, a session border controller and secure services aggregation for private WAN and remote sites.

It also featured an array of secure VPN connectivity services which reduced the need for additional standalone security devices whilst allowing for scalable network security. Some of these include Dynamic Multi-point VPN (DMVPN), Group Enhanced Easy VPN and 11-Gps IP security (IPsec) VPN Services.

Many components for the Cisco ASR 1004 router were hot-swappable, meaning they could be swapped out in the event of a systems failure without the need for network downtime and service disruption, which helped improve its efficiency and overall cost-effectiveness. 

In April 2019 Cisco Systems announced the EOL (end of life) of the Cisco ASR 1004 would come on 30th April 2025. After this time, they would no longer offer any support to businesses using this network equipment. TXO will continue to offer help and advice, as well as a replacement part service for all Cisco ASR 1004 networks. Contact us to find out how we can help with your existing Cisco Network. 

Cisco 1004 ASR component list

At TXO we have an extensive range of refurbished products and parts for the Cisco ASR 1004 router, many of which can be ordered with fast shipping and delivery. A list of some of the most popular products can be found below, but please contact us if the part you require is not listed.


Part NumberDescription
ASR1004Cisco ASR1004 Chassis, Dual P/S for Cisco ASR 1004 Router
ASR1004-10G-8X5XNBDCisco SmartNet total care for Cisco ASR 1004 Router
ASR1004-PWR-ACCisco ASR1004 AC Power Supply,Spare for Cisco ASR 1004 Router
ASR1004-PWR-DCCisco ASR1004 DC Power Supply for Cisco ASR 1004 Router


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Repair capability for the Cisco 1004 ASR Router

As part of the TXO mission to support the circular economy and to help minimise the environmental impact of telecoms across the supply chain, we offer an extensive and comprehensive third-party repair service that focuses on lifecycle management across a wide range of products and components for the Cisco ASR 1004  as well as others from the wider Cisco router family. 

Based out of our advanced engineering facilities in Solihull, our team of experienced system engineers have an in-depth knowledge of core telecom repairs including optical, IP and radio based technologies at circuit board level and conduct approximately 12,000 repairs each year. This ensures the businesses we work with can maintain optimum service levels and minimise disruption to their network. At TXO we are able to refurbish and restore many components for the Cisco ASR 1004  as well as assisting in the procurement of replacement parts as necessary. 

To help ensure the longevity of the repairs we carry out and the overall life of your Cisco equipment, we will often conduct several pre-emptive repairs as part of the service we offer. By reconditioning and repairing parts that are susceptible to developing faults we can help prevent any future repairs by refurbishing parts before issues develop.  

For occasions where minimal downtime is required we also offer an advance replacement service for many used Cisco parts, which allows us to deliver components to you in advance of a repair being carried out, allowing you to ensure that there is minimal disruption to your business.

Check out the full list of platforms that we repair.


Technical specifications for the Cisco 1004 ASR Router

The following table lists the technical specifications for the Cisco 1004 ASR router. For full details of the Cisco 1000 ASR series please view the OEM datasheet.

Physical specifications
Note: Depth applies to chassis edge-to-edge dimension and does not include protrusions such as card handles, power-supply handles, and cable management brackets.
Refer to the applicable hardware installation guide for additional details.
Height: 7 in. (177.8 mm)
Width: 17.2 in. (437.4 mm)
Depth: 18.15 in. (461.0 mm)
68.7 lb (31.16 kg) (with dual AC power supply, SPA blank covers, Cisco ASR 1000 Series 10-Gbps ESP [ASR1000-ESP10] or ASR 1000 Series 40-Gbps ESP [ASR1000-ESP-40], Cisco ASR 1000 Series Route Processor 1 [RP1] [ASR1000-RP1], two Cisco ASR 1000 Series 10-Gbps SIPs [ASR1000-SIP10] or ASR1000 Series 40-Gbps SIPs [ASR1000-SIP-40], and no SPAs)
Default memory4-GB DRAM RP1
Number of SIPs or Ethernet line cards supported2
Shared port adapters8 SPA slots
Ethernet port adaptersN/A
Cisco ASR 1000 Series ESP1 ESP slot
Route processor1 route-processor slot
RedundancySoftware: Yes
Built-in Gigabit Ethernet ports0
Built-in 10 Gigabit Ethernet portNo
Network interface moduleNo
Cisco ASR 1000 SeriesCisco ASR 1004
ESP supportCisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10), noncrypto Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10-N), Cisco ASR 1000 Series 20-Gbps ESP (ASR1000-ESP20), and Cisco ASR 1000 Series 40-Gbps ESP (ASR1000-ESP40)
ESP bandwidth10 to 40 Gbps
ESP memoryCisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10) and ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10): 2‑GB DRAM default; 2‑GB DRAM maximum
Cisco ASR 1000 Series 20-Gbps ESP (ASR1000-ESP20): 4‑GB DRAM default; 4‑GB DRAM maximum
SIPs and Ethernet line cardsSupports Cisco ASR 1000 Series 10-Gbps SIP Carrier Card (ASR1000-SIP10), Cisco ASR 1000 Series 40-Gbps SIP Carrier Card (ASR1000-SIP40), and ASR 1000 Fixed Ethernet Line Cards; two 10 GE + twenty 1 GE line cards (ASR1000-2T+20X1GE); and six 10 GE line cards (ASR1000-6TGE)
Embedded hardware-based encryptionYes: On Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10) with up to 4 Gbps and on Cisco ASR 1000 Series 20-Gbps ESP (ASR1000-ESP20) with up to 8-Gbps crypto support throughput
Note: No support on noncrypto Cisco ASR 1000 Series 10-Gbps ESP (ASR1000-ESP10-N)
Minimum Cisco IOS XE Software releaseCisco IOS XE Software Release 2.1
Rack-mountingYes: 19-inch
External USB flash memory1-GB USB flash-memory support
Redundant power supplySame as for Cisco ASR 1002
Power inputSame as for Cisco ASR 1002
Power consumption● Maximum (DC): 1020W
● Maximum (AC): 960W
● Maximum (out): 765W
Operating temperature (nominal)32 to 104°F
(0 to 40°C)
Operating temperature (short-term)32 to 122°F
(0 to 50°C)
Operating humidity (nominal) (relative humidity)10 to 85%
Operating humidity (short-term)5 to 90%
Storage temperature-40 to 150°F
(-40 to 70°C)
Storage humidity (relative humidity)5 to 95%
Operating altitude-500 to 10,000 feet
(152 to 3048 meters)
Network Equipment Building Standards (NEBS)GR-1089 and GR-63
EMC standards● FCC 47 CFR Part 15 Class A
● VCCI Class A
● AS/NSZ Class A
● ICES-003 Class A
● EN55022/CISPR 22 Information Technology Equipment
● EN55024/CISPR 24 Information Technology Equipment
● EN300 386 Telecommunications Network Equipment
● (EMC)
● EN50082-1/EN61000-6-1 Generic Immunity Standard
Safety StandardUL60950-1
CSA C22.2 No. 60950-1-03
EN 60950-1
IEC 60950-1
AS/NZS 60950.1


Please note, TXO is an independent retailer and has no affiliation with Cisco Systems, Inc. or any of its associated companies.