[j-nsp] qfabric 1536k mac address?

[giovanni rana]

I do, but how big is my DC is not relevant, like being flat or non flat does not matter...Since the data sheet clearly says 1.536.000 Mac addresses are supported, I need to understand if we are talking of unique Mac addresses or that's a number made by using mac-vlan pairs (and so Overlapping MACs) as described in "The QFabric Architecture - Juniper Networks" PDF. Let's make it simple, qfx3500 has a 128k Mac table. I've attached some big esxi clusters on my qfabric and now I got 129k VMs each one with unique Mac address, will I face any problem? 


Date: Thu, 2 Jan 2014 19:10:06 +0200
Subject: Re: [j-nsp] qfabric 1536k mac address?
From: eugen at imacandi.net
To: superburriccu at hotmail.com
CC: bdale at comlinx.com.au; juniper-nsp at puck.nether.net

On Thu, Jan 2, 2014 at 4:20 PM, giovanni rana <superburriccu at hotmail.com> wrote:

Even in the case you mentioned the node shall be able to keep a table where there's an index Made by 1536k entries. I can understand that some memory can be saved by using a vpls style approach, but if I got 1536k VMs with unique and Mac addresses I'm still able to manage them via qfabric? Public docs does not clarify enough this aspects. Thanks for your answer!




You do realise that you are talking about approximately 1,5000,000 MAC addresses in your network in a flat any-to-any topology and not about 1,500 or 15,000 MAC addresses ?

This is how QFabric does MAC learning and forwarding: http://blog.ipspace.net/2011/09/qfabric-part-3-forwarding.html

Regards,Eugeniu