2901 IOS upgrade

[martinbuffleo]

I have just purchased a Cisco 2901 and a EHWIC-4ESG.

Its running c2900-universalk9-mz.SPA.150-1.M6.bin

EHWIC-4ESG requires 15.1(2)T.

I'm the Cisco site how do I know which of the following I want to upgrade to?

15.2.1T(ED)

15.2.1-GC(ED)

15.1.4M1(ED)

15.1.3T2(ED)

15.1.2-GC1(ED)

15.0.1M7(MD)

I have tried Google to figure it out but with no joy.

I know ED stands for early. But what does T, GC and M stand for?

Which should I pick?

[Jerry Ye · Accepted solution]

Characters outside of the ():

T - Technology - new technology/features

GC - Special and early deployment - special new features

M - Main line

Characters inside of the ()

ED - Early deployment

MD - Major deployment - stable code

How to pick the code will depend on your situation and features required. If features are in the T train, you don't have a choice to use any stable M train code.

HTH,

jerry

[Leo Laohoo · Accepted solution]

For your WIC to work, you need either the 15.2.1T, or 15.1.3T2 from the list.  However, you can go down the list and specifically look for 15.1(2)T.

[martinbuffleo]

Thanks both.

Now I just need Cisco to activate my SMARTNet so I can download the IOS.

Got all this kit and I can't use it.