3750 stack switches ios upgrade

[hrafique1]

I am trying to do ios upgrade on 5 stacked 3750 switches. All the switches have different model number, so i am wondering which image file i should download. As far as i understand all the stacked switches should have the same IOS, i may be wrong. The switches have the following model numbers and SW images;

Switch   Ports  Model              SW Version              SW Image

------   -----  -----              ----------              ----------

     1   28     WS-C3750G-24PS     12.2(35)SE5             C3750-IPSERVICESK9-M

*    2   28     WS-C3750G-24PS     12.2(35)SE5             C3750-IPSERVICESK9-M

     3   52     WS-C3750G-48PS     12.2(35)SE5             C3750-IPSERVICESK9-M

     4   30     WS-C3750E-24PD     12.2(35)SE5             C3750E-UNIVERSAL-M

     5   30     WS-C3750E-24PD     12.2(35)SE5             C3750E-UNIVERSAL-M

Please advise which image file i should use as they all have different model numbers and Cisco provides different image files for each model. Please help,

Thanks

[Reza Sharifi · Accepted solution]

You can load

c3560-ipservicesk9-mz.150-2.SE.bin

on 3750G and c3560e-universalk9-mz.150-2.SE.bin

on E.  Just make sure you have enough flash on the G series.

Minimum flash and memory requirement is:

128/32

make sure to read the release note first for any image before you are downloading it.

http://www.cisco.com/en/US/products/ps11781/prod_release_notes_list.html

http://www.cisco.com/cisco/software/release.html?mdfid=279486485&flowid=2535&softwareid=280805680&release=15.0.2-SE&relind=AVAILABLE&rellifecycle=ED&reltype=latest

HTH

[Leo Laohoo]

You can load
c3560-ipservicesk9-mz.150-2.SE.bin
on 3750G and c3560e-universalk9-mz.150-2.SE.bin

He he he ... Gotta be a type-o, right Reza?

[Rick Morris · Accepted solution]

The short answer, yes all switches SHOULD have the same IOS.

The long answer, you can have different IOS images on the switches.  The problem with that is you may find some config issues.  For example, if you have a lan base image or an ip services IOS, one can do layer 3 and the other cannot.  Your master controller should also elect, or you should configure master with the more superior IOS too.  In the event of a master failing and a new election takes place you could lose some functionality.

You can upgrade each switch one at a time by making the switch provisional, or standalone.  This will keep you safe from any issues caused to other switches in the stack.

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00804799d7.shtml

[Joseph W. Doherty]

Disclaimer

The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.

Liability Disclaimer

In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.

Posting

In your stack, you have two different 3750 series, and for one of those series, different models.

All units in the stack (really!) should have the same IOS version.  All units in the stack should (requirements vary per platform) have the same feature set.

Different series may (likely will) have different physical IOS images.

[hrafique1]

In my case i will have to download different IOS on each switch. So  what does it mean when it says that all the switches in a stack must  have the same IOS. I am confused in these two statements.

I cannot find any documentation on cisco's website to say how to download if it is different IOS.

The 3750 stack IOS upgrade document is for the switches which  need same IOS on all the switches e.g in the end it says boot all the  switches with the same IOS. That does not apply in my case as i have  different switche models with different IOS. Please explain how i can go  about downloading the correct versions of IOS on five switches with  different model numbers or can i also install same IOS on these 5  switches (as cisco recommends)

Thanks

[Joseph W. Doherty · Accepted solution]

Disclaimer

The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

Liability Disclaimer

In  no event shall Author be liable for any damages whatsoever (including,  without limitation, damages for loss of use, data or profit) arising out  of the use or inability to use the posting's information even if Author  has been advised of the possibility of such damage.

Posting

Again, with mixed series, you want the same IOS version which can be different IOS images.  What you've posted shows all your switches have IOS SW (software) version, but they have two different IOS images (one for original series models and one for the "E" series models).

One way to load images to individual switches is direct copying of BIN images to each switch's flash.

This document might help

http://www.cisco.com/en/US/products/hw/switches/ps5023/products_configuration_example09186a00804799d7.shtml