[c-nsp] 3750/3550 SMI vs EMI

[Michael Loftis]

--On Sunday, January 23, 2005 06:33 +0100 Håkan Lindholm 
<hakan at staff.spray.se> wrote:

> http://www.cisco.com/cgi-bin/tablebuild.pl/cat2950 still says:
> c2950-i6q4l2-mz.121-22.EA2.bin  C2950 EI AND SI IOS IMAGE
>
> And the -crypto page says:
> c2950-i6k2l2q4-mz.121-22.EA2.bin  C2950 EI AND SI IOS CRYPTO IMAGE
>
>
> Where do you find different images?
>
> In the archives, I can see some 2955 IOS with different images for EI and
> SI, maybe that's what you're trying to run? Or something from back in
> 2002, around 12.1(6) and 12.0(5)WC2.  Who wanna run that anyway?

Use the upgrade planner.  Those other pages are static, don't often list 
but just one variant of the latest software.

12.1.13 comes in all the variants.  starting with 12.1.14 the number of 
variants was reduced until now it is available in two only SI/EI+Crypto and 
SI/EI.

<http://www.cisco.com/cgi-bin/Software/Iosplanner/Planner-tool/iosplanner.cgi>

And the difference *IS HARDWARE*.  The image will load in EI mode on EI 
hardware, and SI mode on SI hardware.  I dont' think the crypto software 
loads with crypto on SI hardware.  Caveat abotu the crypto software is it 
will limit you to 64 active VLANs BTW.