[CentOS-virt] Using STP in kvm bridges

On 09/16/2015 10:15 AM, Dmitry E. Mikhailov wrote:
> On 09/16/2015 03:02 PM, C.L. Martinez wrote:
>>   What advantages and disadvantages have??  If I will want to install
>> some kvm guests that use multicast address for certain services, is it
>> recommended to enable STP?
> STP has nothing to do with multicast as it's an Ethernet protocol.
> It's developed to provide loop-free redundancy links to Ethernet-based
> networks.
>
> I can't imagine any legitimate use of STP within virtualized environment
> except when BOTH a) you don't trust the person who manages VM's (like in
> VPS providing) AND b) you provide more then one network interface to the
> virtual machine.
>
> Otherwise STP can be used to prevent traffic storm because of malicious
> bridging of vNIC's inside VM.
>
> Best regards,
>      Dmitry Mikhailov

Thanks Dmitry... Uhmm, but my case is: "b) you provide more then one 
network interface to the virtual machine". I have several kvm guests 
with 3 or more network interfaces ... In this case, do you recommends to 
enable STP??