Cisco 4000 Series Integrated Services Routers (ISR 4000) vs Cisco 800 Series Integrated Services Routers (ISR 800)

• Easy to use, simple to operate, highly predictable. IOS/IOS-XE is well known and there is a virtually limitless pool of engineers who know this platform and if not having direct experience, can apply knowledge from other IOS/IOS-XE with very little adjustment.
• Extremely flexible due to wide variety of interfaces. NIM and SM-X provide a great deal options: TDM, E&M, FXO, FXS, switches and servers are all options.
• Robust IP feature set: Routing protocols, NBAR, Netflow, QoS, DMVPN. This large IP feature set gives us the ISR makes it a highly re-usable router, capable in many different use cases.

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• [Cisco 800 Series Integrated] Routers can form tunnels over a cellular network via the SIM inserted into it.
• With an external antenna attached to it, their coverage is very good, making them suitable for remote sites where network coverage from ISPs is a concern.
• They function as a switch and router in one device.

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• Super expensive to purchase and maintain licensing for
• Even with a big player like Cisco you get bugs in the software but hey, at least they're quick to fix them
• Sometimes you do feel like guinea pigs testing out beta software

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• Being one of the most versatile routing/switching platforms available, it fulfills most functions one would need in a compact appliance.
• I have not experienced lack of functionality in any areas we use the appliance for.
• One small feature I would like to have is 19" rack mount.

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• We have had several times where we purchased assets and needed to add a remote site quickly for new staff to work. This is very quick to spin up and provides agility to business demands
• Allows for agility to failover network access when primary Internet services fail. We have near 100% uptime due to the ISR configuration we use. Even in the most remote locations.
• Since we adopted Cisco 4000 Series Integrated Services Routers (ISR 4000) as our de facto WAN hardware, we have cookie-cuttered our WAN infrastructure, which makes it easy to manage, upgrade, and alter with minimal impact to users and IT.

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• The long-term stability is great, we have very few problems, resulting in low maintenance costs.
• Configuration for almost all routers in the basics is the same, so there's a very short learning curve per model.
• Running some models of Router for more than 10 years of stability, so the ROI with the devices is greater than expected on starting.

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