[ovs-dev] 答复: Re: 答复: Re: [PATCH] ovn-controller: Support vxlan tunnel in ovn

Ben Pfaff blp at ovn.org
Sun May 7 13:03:30 UTC 2017


On Sat, May 06, 2017 at 10:18:58AM +0800, xu.rong at zte.com.cn wrote:
> Hi,Russell
> 
> We think vxlan is the most commonly used tunnel encapsulation in the 
> overlay network openstack,ovn should better consider it.
> 
> As my workmate wang qianyu said,we would consider computer node connect 
> with existing hardware switches which associates with SR-IOV as VTEP.
> 
> After discussion, we feel that as long as the following changes for vxlan 
> tunnel in the table0:
> 
> 1.For local switch, move MFF_TUN_ID to MFF_LOG_DATAPATH, resubmit to 
> OFTABLE_ETH_UCAST(table29)
> //---In table29, we can find out dst port based on dst mac

This breaks the general-purpose nature of OVN, which isn't based on MAC
addresses.  With this change, an "output" to a given port won't
necessarily output to that port.  It will also break output to OVN
multicast groups.

I oppose this change.


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