[j-nsp] qfabric 1536k mac address?

[giovanni rana]

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! 

> Subject: Re: [j-nsp] qfabric 1536k mac address?
> From: bdale at comlinx.com.au
> Date: Thu, 2 Jan 2014 18:39:51 +1000
> CC: juniper-nsp at puck.nether.net
> To: superburriccu at hotmail.com
> 
> At a guess I'd say it's because in Q-Fabric, the "MAC-learning" is performed by a similar to a VPLS instance per VLAN rather than traditional per-switch CAM tables.  
> 
> I imagine this allows for better scalability/optimisation.
> 
> The switch CAM would then only need to worry about L2-adjacent QF nodes and adjacent hosts.
> 
> On 2 Jan 2014, at 5:28 pm, giovanni rana <superburriccu at hotmail.com> wrote:
> 
> > Hi, during the evaluation of a new data center architecture, how can qfabric support so many Mac addresses? The qfx3500 node supports only 128k Mac tables, how can they get 1536k as declared in the data sheet? Is it because of an optimized use of mac-vlan pairs? 
> > Thanks for any answer and happy 2014! 
> > 		 	   		  
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