[j-nsp] Ex Series VC with *both* high-speed backbone *and* link-aggregation

[Paul Stewart]

I was pretty sure you *cannot* use the remaining SFP ports if they are
configured for VC??  Am I mistaken?

Thanks,

Paul


-----Original Message-----
From: juniper-nsp-bounces at puck.nether.net
[mailto:juniper-nsp-bounces at puck.nether.net] On Behalf Of Paul Zugnoni
Sent: Tuesday, January 03, 2012 2:14 PM
To: Dave Peters
Cc: <juniper-nsp at puck.nether.net>
Subject: Re: [j-nsp] Ex Series VC with *both* high-speed backbone *and*
link-aggregation

Short answer: You can mix the VCP ports, but you cannot LAG them.

You can have an EX4200 using the back-of-chassis 32Gbps VCP-dedicated ports
at the same time using your front-of-chassis XFP or SFP+ also as
VCP-configured ports. It's also nice to know that even while doing this, you
can use remaining front-of-chassis optical ports as configured inet or
switched ports.

I've also had success forming a VC between EX4200s' SFP+ VCP ports through a
DWDM network over 30 miles away, though I wouldn't recommend this for a
permanent reliable solution.

Paul Zugnoni

On Jan 3, 2012, at 09:36 , Dave Peters wrote:

Hi all--

This is simple, but I can't find definitive proof online . . .

Can I set up a Juniper EX series virtual chassis using a high-speed backbone
on one floor of a building and then connect that VC to another switch (or
two) via link-aggregation on the SFP ports?

I'm not sure you can mix the VC connections, is all.  Can I use both the
stacking backbone on one floor and the SFP links on another floor in the
same virtual chassis?

Thanks much.

--
Dave Peters
Technical Director
Terabit Systems
2565 3rd Street  #218
San Francisco, CA  94107

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