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

[Paul Stewart]

We need 7 switches to handle the port requirements for "single homing" of
the NIC's.;)

 

Paul

 

 

From: Keegan Holley [mailto:keegan.holley at sungard.com] 
Sent: Wednesday, February 23, 2011 12:51 PM
To: Paul Stewart
Cc: Rafael Rodriguez; Giovanni Bellac; juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] 2x EX4200 Virtual Chassis Layer2/3 - Which JunOS
Version ?

 

 

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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