How to determine most stable Cisco IOS release?

Posted by Chris J on Server Fault See other posts from Server Fault or by Chris J
Published on 2012-11-16T21:21:54Z Indexed on 2012/11/16 23:02 UTC
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Filed under:

networking

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cisco

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switch

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ios

This post is about a Catalyst 4948E switch. I was looking on the download page and realized that there are no "GD" versions available. Are the "ED" versions stable? Even if you change "ED" to "GD" in the URL the IOS images are still the same.

http://www.cisco.com/cisco/software/release.html?mdfid=283027810&flowid=3592&softwareid=280805680&release=15.1.1-SG2&relind=AVAILABLE&rellifecycle=ED&reltype=latest

Is 15.1 as reliable as 15.0?

My devices are currently on the 12.2 train. Is there anything special to upgrade to one of the 15.x trains? Are the configurations compatible.

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