netdev - RE: VxLAN support question

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Message-ID: <EA360A7AB9D90D4B9E9173B6D27C371EE3F7BC1C@MTKMBS61N1.mediatek.inc>
Date:	Tue, 11 Aug 2015 17:58:14 +0000
From:	Andrew Qu <andrew.qu@...iatek.com>
To:	Alexei Starovoitov <ast@...mgrid.com>,
	David Miller <davem@...emloft.net>
CC:	"tgraf@...g.ch" <tgraf@...g.ch>,
	"jesse@...ira.com" <jesse@...ira.com>,
	"pshelar@...ira.com" <pshelar@...ira.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: VxLAN support question

Hi Alexei,

I support using mcast group for all VNIs in control plane/data plane.
But in case there is no mcast routing enabled, I need to support
P2P vxlan underlay, hence use of the configuration I showed.

Thanks for the confirmation.

By the way, any informational doc I can read to know about the metadata mode of vxlan?

Andrew

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-----Original Message-----
From: Alexei Starovoitov [mailto:ast@...mgrid.com] 
Sent: Monday, August 10, 2015 10:37 PM
To: Andrew Qu; David Miller
Cc: tgraf@...g.ch; jesse@...ira.com; pshelar@...ira.com; netdev@...r.kernel.org
Subject: Re: VxLAN support question

On 8/10/15 4:47 PM, Andrew Qu wrote:
>
> Pretty much what I want is that  kernel will have about 1K interfaces 
> (something like Tunnel100.1-tunnel100.1000 To be created and attached 
> to 1K bridge domains on which each VNI is associated with given VNI to 
> bridge-domain will be assigned using other CLIs)

creating 1k vxlan devices is doable, but you probably want to take a look at recently added metadata mode of vxlan.
Also sounds like for each vni you'd need a different multicast group?
What fabric going to support that?

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