IOS 15.0.2 Recommendation needed

[leitwerk_smartnet]

Hello Community,

we are planning to downgrade/upgrade our 2960s and 2690x switches to IOS Version 15.0.2. Is there a recommended Release where we don't have to expect too many bugs ;) I'm looking for the most stable version of this release train. Any help is highly appreciated.

Kind Regards,

Benjamin

[Reza Sharifi]

Hi,

This is difficult question to answer as every environment is different and run different feature sets and almost every IOS has bugs.  Pick a version and read the release notes for it, go over all the bug fixes, test it in the lab before you install it in production.

HTH

[Rajtilak Sivaluri]

Hi

IOS 15.1 has been a stable version handling both voice and data traffic, not sure about the 15.2 however, i would recommend you to go through the known bugs which should help you in choosing.

Regards

Raj

[leitwerk_smartnet]

Hello Reza, hello Raajtilak,

thanks for your replies.

I was actually looking for some advice on which minor release to choose, e.g. 15.0.2-EX5(ED), 15.0.2-EX4(ED), 15.0.2-EX3(ED), 15.0.2-EX1(ED), 15.0.2-EX(ED), 15.0.2-SE6(ED), 15.0.2-SE5(ED), (..) 15.0.1-SE1(ED), 15.0.1-SE(ED) and so on.

Right now we have deployed IOS Version 15.2(1)E on our switches, and we are facing some serious issues (see [1] and [2]) with this IOS Version. Before downgrading, I want to make sure that this version is field-proven and considered to be "stable" enough for an productive invironment.

[1] http://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/8021x/116529-problemsolution-product-00.html

[2] https://tools.cisco.com/bugsearch/bug/CSCui69119

[Seth Bjorn]

We've been running 15.2(1)E1 on our 2960s stacks without issue. They are running snmp v3, dhcp snooping, arp inspection, spanning tree, port security, device sensor.