Re: [dc] Requirement for a method to manage mac address in DC

[Lizhong Jin <[e-mail]>]

Hi Thomas,
The VMs connected by SPB-M or NVO3/VXLAN/NVGRE will still reside in one L2
network, and the VMs MAC will still conflict if have same MAC address. VM
MAC confliction could not be mitigated or solved by these mechanism if I
understand correctly.

Lizhong

-------------------------------------
yu.jinghai at zte.com.cn writes:


>
>    I wonder whether it is necessary to manage mac address in DC.
> As you know,VM's mac is randomly generated.
> The risk of mac conflict is increasing with  the amount of VMs in DC.
> If there is a method to auto manage and allocate mac address,the
>    risk maybe avoid.
> That method may facilitate the operator to control network easily
>    and other available benefits.

One straightforward way to mitigate C-MAC conflicts is via
encapsulations, whether through something like SPB-M or
NVO3/VXLAN/NVGRE.

Do such approaches not address the problem sufficiently?

Thomas