3560 IOS upgrade question

[Geminorum_cco]

Hi everybody,

thanks for an awesome forum!

I have two 3560s that i would like to upgrade. But first i would like to make -absolutely- sure i dont wind up in a situation where i have to roll back over a console connection.

-- to the day i still cant understand why oh why someone removed (or chose not to implement it everywhere) tftpdnld from rommon ;)) --

Anyways, i'm talking about these two babies, and their current image:

WS-C3560G-48PS   / c3560-ipservicesk9-mz.122-55.SE5.bin

WS-C3560G-48TS   / c3560-ipbase-mz.122-35.SE5.bin

Now... can i expect the switches to boot after removing the current IOSs and uploading the following to both:

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

Or maybe another images from the same train. To me it looks like it, i've been scouring the web without anything to the contrary. However...

Thanks in advance

Cheers

[InayathUlla Sharieff · Accepted solution]

Gi,

My preference would be to stay on 12.2(55)SE7   which is quite stable version for 3560/3750 devices.

If you required new features then go ahead with 15.0(2)SE2.

Upgrade should be simple you can get it on release notes.

http://www.cisco.com/en/US/docs/ios/15_0/release/notes/150MREQS.html

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/15.0_1_se/release/notes/OL25302.html

HTH

REgards

Inayath

*Plz rate all usefull posts.

[Geminorum_cco]

Thanks

I'll check up on the requirements and see whats what.

Cheers

[Leo Laohoo]

In addition to Inayath's response, are you running 802.1x?

[Geminorum_cco]

Hi Leo

No we are using other meassures, is there a caveat there with the 15.0?

Cheers

[Leo Laohoo]

15.0(2)SE2 works well as long as you don't use 802.1x.

[Geminorum_cco]

Hiya Leo,

do you have specific concerns?

I've been considering the switch to 802.1x because we have some rented rack space...

Cheers

[Leo Laohoo]

do you have specific concerns?

Your 3560/3750, when running 15.0(2)SE2 and 802.1x enabled, will turn into mush.

I've got fleets of 3560CG crashing on a daily basis.  I can't upgrade to 15.0(2)SE3 because that would be like throwing dynamite into a blazing fire.

I don't want to downgrade the IOS of the 3560CG because there are features in the 15.0(2)SE2 that we also want. 

[Geminorum_cco]

Right! That is good to know!

Thanks again.