Help understanding IOS versions

Unanswered Question
Mar 10th, 2009
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All,


I know that Cisco provides the following:


ED - early deployment

GD - general deployment

LD - Limited deployment


Can anyone tell me what the stages are?


Is ED released first, then turned into LD and finally GD?


The reason that I ask is that I need to update our stack, but management is saying that they only want a GD release. Understood, but the download area for the 3750G only has EDs available for download.


Thanks,

John

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Jon Marshall Tue, 03/10/2009 - 12:53
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"I wish I could rate myself =)"


You can't but we can :-). Thanks for letting us know.


Jon

Jon Marshall Tue, 03/10/2009 - 12:52
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John


Have a look at this link which explains the meanings -


http://www.cisco.com/kobayashi/library/iosplanner/reldesignation.html


You need a Cisco login to view.


As of 12.4 GD's are no longer being released. Not sure about the 3750 train but you'll be lucky to find a GD.


Jon

Joseph W. Doherty Tue, 03/10/2009 - 16:39
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Besides lost of LD/GD, what Cisco is doing with "mainline" code is now different too.


Mainline code, was feature frozen with the first release (initially a LD release), all the later releases were fixes (first later release considered really stable was GD). With 12.4 "mainline", new software and/or hardware features may be inserted into later releases (much like what was done with "T" trains). (This is also why you see so many letter suffix 12.4 releases; they should be just fixes.)

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