[j-nsp] Question about Routing Engine Redundancy on MX

Paul Stewart paul at paulstewart.org
Wed Jan 9 15:43:04 EST 2013

Thanks RAS.. that's interesting as we've never actually tried that...

Have you tried this in a production environment or would you?  Do we have
any idea on whether or not JTAC would support this configuration officially?

I realize these are loaded questions - just really curious on this topic as
it opens up some "new possibilities" for us in some deployments...  Our SE
basically told us to "run" from this idea previously...

Cheers ;)


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Richard A
Sent: January-09-13 2:56 PM
To: Jose Sanchez
Cc: juniper-nsp
Subject: Re: [j-nsp] Question about Routing Engine Redundancy on MX

On Wed, Jan 09, 2013 at 12:39:05PM -0600, Jose Sanchez wrote:
> Hello,
> Does anybody know if the RE Redundancy in Juniper MX Routers requires 
> that both RE are the same hardware or it is enough that the REs has 
> the same JUNOS Version?

As long as they're reasonably similar it should work fine. For MX that
pretty much means RE-2000 and RE-1300, you have no hope in hell of
mismatching the new ones (RE-1800x2/4, which require 64-bit JUNOS) with the
old ones. For some definition of work of course (for all of the active
redundancy), where in my experience the answer is "it doesn't". 

Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
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