[c-nsp] Performance Difference NM-16ESW-1GIG and NME-16ES-1GIG

[Alain RICHARD]

Le 23 sept. 2010 à 11:32, Jeffrey Denton a écrit :

> Looking at getting a couple of 3945s.  NM-16ESW-1GIG is being
> recommended by one of my colleagues.  He prefers the easy of use, not
> having to session in to the module.  It's been pointed out that the
> router IOS will have to devote some of it's time to the module and
> perform the switching functions.  We would have to get the 3945 as the
> module is not supported in the 3945E.
> 
> The NME-16ES-1GIG is of course a newer generation.  The module runs
> it's own IOS image.
> 
> PoE is not a requirement.
> 
> Links to the data sheets:
> http://www.cisco.com/en/US/prod/collateral/routers/ps259/product_data_sheet09186a00801aca3e.html
> http://www.cisco.com/en/US/prod/collateral/routers/ps5855/product_data_sheet0900aecd8028d15f.html
> 
> How much does the older module affect the performance of the router
> itself when compared to the newer module?
> 
> Thank you
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Theses are very different products. The NME one are a full switch with all the functionalities of an external switch. One notable difference is the number of supported VLANs : depending of the supporting router, 16 to 64 for the NM-16ESW and 1024 for the NME. The NME-16ESW-1G is in fact like a 3750 embedded into the router.

You should look at these Q&A for the 2800 series :

http://www.cisco.com/en/US/prod/collateral/routers/ps259/prod_qas0900aecd802a9470_ps5854_Products_Q_and_A_Item.html

For the 2900/3900 series, it seams to be also enhanced modules that are like 2960 (ES2) and 3960E (ES3) switches :

http://www.cisco.com/en/US/prod/collateral/routers/ps10536/qa_c67_554789.html

Best regards,

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Alain RICHARD <mailto:alain.richard at equation.fr>
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