Quick IOS Question 3

[JRosario78]

I'm new to all this. I would like to know which IOS is newer or/and better for my 2610 router?

c2600-js-mz.122-19a.bin

Or

c2600-is-mz.122-29.bin

If possible, can some one tell me how to read the filename.
Platform-??-??.???.-??.bin

Thanks!

 

[JOAMON]

If you have enought memory I would go with the latest 12.3 release. 12.4 releases will no longer support that platform so 12.3 will be the last release for it. If not or do not have the ability to download from cisco then go with the 12.2(29) release as the 19a release is not even in the download list for that router. The 12.2(29) release you listed is IP Plus feature set only.

 

[ADB100]

Ahh, Cisco naming conventions...... There was actually a book produced on this, so you can see it isn't a simple thing.

The first image you list (c2600-js-mz.122-19a.bin) is an Enterprise image (js), also referred to as the Kitchen Sink image. This has all mutliple protocols (IP, IPX, Appletalk, CLNS, OSI etc). This image is likely to be quite big as well.
The second image you list (c2600-is-mz.122-29.bin) is an IP only image (IS), although it is a later release - 12.2(29). This is probably a lot smaller than the other image and supports only routing IP, other features such as 802.1q will also be missing. This is generally what a router will be supplied with if no image is ordered separately.

Cisco have Major IOS releases - 12.0, 12.1, 12.2, 12.3 & now 12.4. Within each release there are maintenance releases - 12.1(10) etc with (10) being the maintenance release of the major code. In addition to this there are 'Feature Sets' such as IP only , IP Plus, IP Plus 3DES, Desktop, Enterprise, Enterprise Plus, etc etc. There are LOTS and not all feature sets are available for all platforms.

I hope that explains it a bit for you. A detailed explanation will be on CCO but I don't have a link to hand - try a search on CCO.

Andy

 

[JRosario78]

Thanks to both for the answer(s). Where can I get a copy of the Enterprise image 12.3 for my 2600 router.