[c-nsp] Cisco IOS

[Gert Doering]

Hi,

On Wed, Dec 07, 2005 at 10:42:53AM -0500, Jon Lewis wrote:
> >>step where I'm about to download it to my desktop, then copy the URL, and
> >>use lynx on the tftp server to download the image directly to the server.
> >>I wouldn't have thought such a system for grabbing IOS was unusual.
> >
> >I just type "ftp ftp.cisco.com" from the server I need the image on...
> >
> >Sounds lots easier to me.
> 
> How do you navigate the FTP server to find exactly the image you need 

cd /cisco/ios/12.x/12.x.<latest>/platform
dir
get

> and know the RAM/Flash requirements of the image?

Flash: fairly easy.  Compare file size to flash space.

RAM: usually "not enough RAM inside", whatever you do :-) - but indeed,
feature navigator is helpful.

> For the less initiated, how would you even find the right image (right 
> feature set) without just knowing what all the (y|p|pk9sv|pv|k91pv|etc) 
> codes mean?

If I have no idea what to look for, I start with feature navigator - but
this is maybe 10% of all image downloads.  

Most of the time it's "oh, there is another critical bug in the IOS version 
we have on <x>, so look at the advisory for fixed-in versions, then get 
the image with the same feature set as before, and same IOS train".

Like "I have 12.2(10) on that 1600 with ip only, and I need to go to
12.2(32) due to bug X" - so I can look at the existing IOS file name and 
then go to /cisco/ios/12.2/12.2.32/1600/ and get me the corresponding 
updated version.

gert

-- 
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de