11-10-2009 04:22 PM - edited 03-06-2019 08:32 AM
It would be quite helpful to me if u suggest how to select a IOS for upgradation for the below scenarios.
Currently I have 4 switches to upgrade for ssh feature, below are the existing IOS images.
i.e.
1.c3560-ipbase-mz.122-25.SEB4(Model:WS-C3560-48PS)
2.c2950-i6q4l2-mz.121-14.EA1a.bin(Model:WS-C2950G-24-EI)
3.cbs30x0-lanbase-mz.122-40.SE2(Model:WS-CBS3020-HPQ)
4.c3500xl-c3h2s-mz.120-5.WC10.bin(Model:WS-C3548-XL-EN)
So please suggest the guidelines to select the correct image & which are the important things I have to keep in my mind while selecting the IOS image.
11-10-2009 04:35 PM
Generally they will tell you to take the latest code as long as its not a deferred image for some reason . Look for major bugs using the bug toolkit .
11-10-2009 05:34 PM
Here's how to read the code versions:
x.y(zz)AB Example: 12.2(40)SE2 (on your CBS)
X=Major Version (11, 12, or 15)
y=Minor Version (0,1,2,3, or 4)
ZZ=support for specific hardware/features
A=Branch (SB=Service Provider)
B=Maintenance release (Bug Fixes)
Basically, you want the newest release that supports all the features you need, with the highest Maint number at the end.
For example, for the 3560, you could pick:
12.2(35)SE5
12.2(44)SE6
12.2(50)SE3
12.2(52)SE
The all have the same major and minor version. So looking at the number in parentheses you need to decide which one supports the features you need. If they all do, then next step. Look at the number at the end. If there is no number, then it's the first release. If you were to compare it to windows, that would be without a service pack.
My choice here would most likely be 12.2(44)SE6. Then I would go to the Cisco site and see what bugs are open on that code, and see if they would affect me.
A risk analysis is always a good idea when installing any new code not just Cisco code.
11-11-2009 10:17 AM
Thanks for yr reply.
As u have suggested the above version,but all of the above version are comes with following types,such as :
1.Advanced ip services
2.ip services
3.ip base
Also many types are there........
So can u suggest me which one to choose & why.
Can I get these versions free of cost or, I have to pay for it.
If I will go for the latest one,then....is there anything extra I have to pay in term of its price.
11-11-2009 10:24 AM
Your only allowed to upgrade to the "feature set" you already have. If you want to upgrade from IP Base to IP Advanced services, you need to pay.
11-11-2009 02:29 PM
Manjit,
In addition to the other posters suggestions I will add this in order for you to ahve SSH:
1. For 3560 you will need a k9 in the image name, i.e. c3560-ipbasek9-mz.122-xxxx
2. For 2950 you will need a c2950-i6k2l2q4-mz.121-22.EA13.bin
3. For CBS3020 the same as for 3560 - you need a k9 image; i.e. cbs30x0-lanbasek9-mx.122-xxxxx
4. For Cat2900XL and 3500XL it is not possible to get SSH support, as far as I know.
HTH, Ingolf
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