[j-nsp] 2x EX4200 Virtual Chassis Layer2/3 - Which JunOS Version ?

[Keegan Holley]

On Wed, Feb 23, 2011 at 12:39 PM, Paul Stewart <paul at paulstewart.org> wrote:

> Yes.... that's why in our latest EX4200 VC we are creating two "rings" of
> switches.  Since it's mainly servers where we can run teamed NIC's (one to
> each "ring" switch) we are hoping that during any upgrades/outages things
> will continue to operate.  It's not fully implemented yet but that's our
> plan...  7 EX4200 on one ring and 7 EX4200 on another to start...
>
> Couldn't you just take the switches out of the VC and use active/standby
teaming?  If you don't need the bandwidth you would end up buying half as
many switches.

>
>
> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net
> [mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Rafael Rodriguez
> Sent: Wednesday, February 23, 2011 12:33 PM
> To: Giovanni Bellac
> Cc: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] 2x EX4200 Virtual Chassis Layer2/3 - Which JunOS
> Version ?
>
> Just an FYI, because I've seen this bite people before (not specific to
> your
> question)... software upgrades on EX4200 VCs are NOT hitless - the whole VC
> is down for the duration of the upgrade (sometimes 15+ mins).
> VC != redundancy/HA, VC = less switches to manage.
>
> On Sat, Feb 19, 2011 at 11:13 AM, Giovanni Bellac
> <giovannib1979 at ymail.com>wrote:
>
> > Hello all
> >
> > I have now spend a lot of time to find out the optimal version of JunOS
> for
> > our
> > newly ordered 2x EX4200s.
> >
> > 1) We will run a 2x EX4200 Virtual Chassis.
> > 2) We will run BGP default routes (NO full table) and announce our /21.
> > 3) We will connect our rack-switches to the Virtual Chassis.
> >
> > So, we will do Layer2 and some (basic) Layer3.
> >
> > Should we use the latest service release of 10.0 (= 10.0s11 / 10.0s12) or
> > use
> > directly 10.4R2.6 ?
> >
> > My eyes are on 10.0 and 10.4 because these are longer supported releases.
> >
> > Thank you in advance.
> >
> > Regards
> > Giovanni
> >
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> >
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