[c-nsp] Adding a SUP720-3BXL standby SUP question

Lee Starnes lee.t.starnes at gmail.com
Wed Apr 4 17:13:40 EDT 2012


I had figured as much, but wanted to make sure. I have backups of
everything, so if something does go wrong, it can get corrected. We may
just pick up a spare chassis to do this upgrade. Seems that they are not
too costly.

Thanks for the input.

-Lee

2012/4/4 Piotr Wojciechowski <peper at peper.eu.org>

> On 4/4/12 22:14 , Lee Starnes wrote:
> > Hi,
> >
> > I have a question about the 6509 and the SUP720-3BXL standby sup. If a
> > chassis only has 1 SUP installed and you install a second one, will that
> > disrupt the currently installed and working SUP? I ask this because we
> have
> > our standby SUPs and I would like to install them, but I know they don't
> > have the same version of IOS running. I don't want to blow away the
> config
> > or cause the chassis to go down when installing these. Does anyone have
> any
> > experience with this?
> >
>
> Hi,
>
> Normally when you insert second sup as a standby (same type, hardware
> configuration including PFC and memory) it should synchronize itself to
> active one including IOS and configuration (except configuration
> registers) and reload as standby. But I normally recommend my customers
> to manually load proper IOS to supervisor on spare chassis and insert
> prepared one into production chassis.
>
> Regards,
>
> --
> Piotr Wojciechowski  (CCIE #25543)  | "The trouble with being a god is
> http://ccieplayground.wordpress.com | that you've got no one to pray to"
> JID: peper at jabber.org               |   -- (Terry Pratchett, Small Gods)
>
>


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