Basically, yes.
Cisco's system is so elaborate that there's a Cisco Press book about it.
Stuff like 12.0T or 12.0-XE are limted life time releases, they get
bug fixes during their active lifetime.
12.0T was for new technology (features/hardware), it ended at 12.0(7)T,
hence no more bugfixes beyond that era.
12.0 is a "mainline" and gets bugfixes for it's engineering/sales
lifetime, but typically stops gaining features fairly early in
the game. There might be 30+ bugfix releases. It becomes eligible
for "general deployment" once it's achieved some some stability
metric, something relatively irrelevant to serivce providers, but
there may be enterprise folks who would only use the mature software.
12.0S is special release to support service providers. It also gets
bugfixes for it's engineering/sales life, but new features are added
as needed to support that application focus, perhaps after being
blooded 12.0x or 12.1 limited lifetime release.
> Subject: RE: [nsp] REG: Cisco IOS Software
> From: "Vinod Anthony Joseph Cherunni" <vac@dsqworld.com>
> Date: Mon, 12 Feb 2001 13:02:08 +0530
>
> Thanks a lot for all the advice. If I have got it right is that all bug
> fixing does not happen on (T) trains, & technology additions only happen
> on the (T) train, whereas all bug fixes happen on the major releases ie I
> mean non (T) trains.
>
> With warm regards,
> Vinod.
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:28 EDT