[j-nsp] QFX5100 redundant RE and virtual-chassis

[Octavio Alfageme]

Thanks a lot Peter and Nitzan. Now it's clear. I misunderstood what I read
and I thought that the backup RE was present not only during ISSU. Thanks a
lot for your help.

Kind regards

Octavio

On Sat, Mar 21, 2015 at 7:58 PM, Peter Tavenier <petertavenier at gmail.com>
wrote:

> Same as I understood from a juniper update.
> Dual RE on a single chassis is only possible if there is no VC/VCF. It is
> intended to do a ISSU with a single unit. ISSU is hitless in best case.
> There is a soft-reset on the PFE.
>
> So in your VC with two QFX5100's there will be only two RE's, one on each
> unit.
>
> --
> Kind regards,
>
> Peter Tavenier
>
> > Op 21 mrt. 2015 om 17:07 heeft Nitzan Tzelniker <
> nitzan.tzelniker at gmail.com> het volgende geschreven:
> >
> > AFAIK The second RE is spawn only during the upgrade and shutdown after
> the
> > upgrade
> >
> > Nitzan
> >
> >
> > On Sat, Mar 21, 2015 at 4:45 PM, Octavio Alfageme <
> > octavio.alfageme at gmail.com> wrote:
> >
> >> Hello everyone,
> >>
> >> Soon I'm gonna have to configure a virtual-chassis of two QFX5100s. I'd
> be
> >> grateful if you could help me with a couple of doubts I haven't been
> able
> >> to solve with the manuals:
> >>
> >> * Are both REs, each one running as a different virtual-machine over
> Linux
> >> KVM, enabled by default when the QFX5100 boots for the first time? If
> not,
> >> what does it have to be done to get it?
> >> * If I need to set a virtual-chassis (not a virtual-chassis fabric)
> between
> >> both QFX5100 switches, how many members do I have to consider? If both
> REs
> >> are active, then I suppose the answer would be four (QFX5000_1_RE0,
> >> QFX5000_1_RE1, QFX5000_2_RE0, QFX5000_2_RE1). However, I haven't seen
> any
> >> example considering the redundant RE on each QFX5100.
> >>
> >> Thanks in advance
> >>
> >> Kind regards
> >>
> >> Octavio
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