Today I’m going to compare about Cisco ISR and ASR.
ISR–Integrated Service Routers, generally used as internet edge for customerswith small/medium networks.
But what’s Integrated Service? Wikipedia’s explanation is to say integrated services is an architecture that specifies the elements to guarantee quality of service (QoS) on networks. IntServ can for example be used to allow video and sound to reach the receiver without interruption.
ASR–Aggregation Services Routers, generally used as internet edge for enterprise networks and service providers.
Currently Cisco ISR Routers include 800 Series ISR, 1900 Series ISR, 2900 Series ISR, 3900 Series ISR and 4400 Series ISR. And the Cisco ASR Routers consist of 900 Series ASR, 1000 Series ASR, 5000 Series ASR and 9000 Series ASR.
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ASR vs ISR |
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| ISR | ASR 900 | ASR 1000 | ASR 9000 | |
| Description | Ideal for branch office deployments. Converged platform with industry-leading network, compute, and WAN services. | A modular metro aggregation, mobile pre-aggregation, and broadband aggregation platform | Ideal for enterprises seeking network edge performance in a small form factor | Best in class routing platform for Edge and Carrier Ethernet networks |
| Operating System | IOS | IOS XE | IOS XE | IOS XR |
| Branch | Yes | No | No | No |
| Cloud access | Yes | No | No | Yes |
| Industrial networking and
machine-to-machine |
Yes | No | No | No |
| Data center interconnect | No | No | Yes | Yes |
| Enterprise WAN | Yes | Yes | Yes | |
| Internet edge | Yes | Yes | Yes | Yes |
| Managed services | Yes | No | Yes | Yes |
| Mobile Internet | Yes | Yes | Yes | Yes |
| Service provider core | No | No | No | Yes |
| Service provider edge | Yes | Yes | Yes | Yes |
For different actual needs, different routers have different functions.
The following table shows features and benefits of ISR and ASR routers.
| Router Series | Features and Benefit |
| ISR 800 | Diverse WAN connectivity
Full-service branch platform Enterprise-class security Simplified management |
| ISR 1900 | Modular design
Agile application services WAN connectivity WAN optimization Highly integrated security High performance |
| ISR 2900 | Agile application services
WAN connectivity WAN optimization Highly integrated security Unified communications Medianet services |
| ISR 3900 | Agile application services
WAN connectivity WAN optimization Highly integrated security Unified communications Medianet services |
| ISR 4000 | Virtualization ready
Network automation Network services Branch threat defense |
| ASR 900 | Broadband aggregation
Pre-aggregation for mobile applications Timing services Suitable for harsh environments Metro Ethernet Aggregation |
| ASR 1000 | Application-centric SD-WAN
High performance and scale Unified communications Virtualization-ready platform |
| ASR 9000 | Optimize network performance and reduce complexity
Ensure customer experiences Flexible service delivery, system resiliency |
The Cisco 800, 1900, 2900, 3900 series Integrated Service Routers (ISR) and Cisco 1000 series Aggregation Service Routers (ASR) can be used to protect the confidentiality and integrity of sensitive data through an Internet Key Exchange (IKE) mutually-authenticated IPsec encrypted overlay network.
The ISR/ASR range has been approved to secure sensitive data when configured with the PSN Interim IPsec Profile.
An ISR includes the smarts and connections to support telephony (Voice over IP) and a number of other specialist components such as Intrusion Prevention later. Cisco coined the phrase to differentiate their products from other router vendors (who now also include many of those features).
If you have any question or suggestion, welcome to leave your comments.
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