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

[Paul Zugnoni]

Hope a 2-week later reply is still relevant for you:

I've had good experience with 10.0S1.1 and 10.1R3.7 in setups that include your 3 requirements below. As noted earlier in the thread, upgrades on a EX VC are not hitless, so keep that in mind. The VC will not provide HA for a code upgrade.

Also important to note: You might not plan to carry the full table, but if you plan to accomplish that by rejecting any route from your ISP other than the default, you'll have a performance problem when the EX has to reject thousands (full table now at ~350k routes) of routes. Be sure to have your ISP send you JUST the default. ;)

Don't forget to get the right license to run BGP on the EX.

Paul Z

On Feb 19, 2011, at 08:13 , Giovanni Bellac 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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