Migrating from a 2911 router to a ISR 4331

[RoutersRoute]

Hello,

We are soon replacing our 2911 router, and it seems like the ISR 4331 would be a good option. The current router is the primary internet connection, so it runs some bgp. 1 Lan 1 Wan. It does not have any extra modules

Has anyone else made this switch? Would it almost be as simple as copying and pasting the configs? As I am slightly worried about the slight differences in IOS. Anything else I should know about? Advice?

[Richard Burts]

I would expect the transition from 2911 to 4331 to be fairly straightforward but it can not be just copy and paste. There are a few differences that you need to take care of such as the interface names will be different. Since we do not know what you are doing on your 2911 and what features you are using we can not address specific differences. I am confident that you will be able to figure them out.

HTH

Rick

[RoutersRoute]

Thank you for your reply! I was mostly looking for any major issues/differences in the basics. I would assume it would be pretty much as easy as looking at one config and putting it into the other part by part. Appreciate your response!

[chrihussey]

I have made similar migrations and the configurations are pretty close but there are some subtle differences. I don't recall it being too difficult to figure out and assume it will vary based on what features you'll be using. In my case the biggest was the clocking configuration for VoIP PRIs, but it wasn't overly complicated.

Just be sure you get the proper licensing for what you need and if you think you'll need the increased throughput be sure to purchase that license.

Hope this helps.

[RoutersRoute]

Thanks for your input and advice. The current device is running the ip-base, so i would assume the new one would also use the ipbase license. It is good to know any possible pitfalls or difficulties!

[Joseph W. Doherty]

Cannot say for sure, but Cisco, from time to time, does change was an IOS feature set includes. This means, don't assume IPBase on a 2911 and 4331 will support all the same features.

[RoutersRoute]

Yeah licensing can cause issues... I guess the "nice" thing is we can always purchase the extra licenses to unlock features that we may need, but obviously that may become costly. However, I am pretty sure we wont need anything extra from what I have read.