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Opinion, Cisco Routers

Posted on 2007-10-04
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Last Modified: 2010-04-17
Someone care to compare the major differences between a Cisco 3845 and a 7206VXR? It will be used on a T3
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Question by:akalbfell
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by:lrmoore
ID: 20016362
3800 series router is part of the Integrated Services Router family that supports integration of voice, data, video, wireless and a whole host of other new and inovative network modules. This is a "does it all" platform.
The 7200 series is ground up a high performance, high availability WAN edge router and WAN/carrier aggregation router. It is not going to support advanced modules like Network analysis module, Wide Area File Services module, Application inspection modules, Intrusion Detection modules, or many of the various voice NM's. It does have some voice support, but mostly at an aggregation/gateway to PBX level. It does not try to do it all, just do what it does very very well - WAN and VPN.
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by:akalbfell
ID: 20016457
what in your recomendation would be suitable?
This router is going to be for a T3 (12 Mbps) for our users and a connection to a DR site (6 mbps). Behind the router is a PIX515, VPN Concentrator and all users connected to 1 of two 6506's. I realize that the 7206 might be overkill for our situation but we are getting a price only slighty more then what our ISP is quoting for a 3845.
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lrmoore earned 2000 total points
ID: 20016611
If that is all you are ever going to use it for, I'd go with the 7206VXR. You could expand that T3 up to 2-3 more of them if you need, or any combination of T1/T3/Gigabit interfaces as they come available to connect to a DR site.

On the flip side, the annual SmartNet maintenance is much less on the 3845, so over a few years the cost will be significantly  lower, and it gives you some added features that you might want to take advantage of later on down the road.

You might want to consider a plan for upgrading the PIX515 and VPN concentrator to a new ASA5520 that combines both with a whole host of new features.
You might even consider dropping the router down to something like a 2851 that supports fractional T3 and spend the difference on the replacement ASA.

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by:akalbfell
ID: 20018295
anything between those two? Im assuming the 3845 is one of the lower end routers to be used with a T3..I really dont see us need the router for anything more then the gateway out, no security or anything like that will be done on there...
At some point we will move the PIX and Concentrator out and replace it with an ASA...right now we are setting up the DR site, and putting an ASA in there so when that project is up and running we will change at the main site.
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by:akalbfell
ID: 20024169
Or can we just use one of our 6506's for the job? if so whats the downside to this?
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by:lrmoore
ID: 20024222
You have that option with a WAN blade and T3 port adapter. Good part is that your smarnet does not increase.
http://www.cisco.com/en/US/products/hw/switches/ps708/products_data_sheet09186a00801df1d9.html
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by:akalbfell
ID: 20024278
whats the benefit/downside of using the 6506's we have or getting another device?
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by:lrmoore
ID: 20024358
For a point-point connection for DR, I can't really think of any downside. The 6500 chassis is fully capable, and list pricing is about a wash between all 3 choices.
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by:akalbfell
ID: 20024371
thanks alot for your help, i really appreciate it.
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