[PVE-User] Multiple bridge on single physical interface

Jean-mathieu CHANTREIN jean-mathieu.chantrein at univ-angers.fr
Wed Sep 20 17:24:52 CEST 2017


Hi Silvestre.

Thanks for your reply.

I don't want to make a bond, I want to use just one physical interface for traffic off at least 2 isolate subnetwork behind at least 2 virtual bridge.

It's perfectly work when I use just one virtual bridge on one physical interface. I just want to add another subnetwork to the virtual bridge or an another virtual bridge behind the same physical interface than the first virtual bridge.

But, with your answers I have a doubt, can I have setup vlan on a virtual bridge ?

Sorry for my english to.

Regards.

Jean-Mathieu

----- Mail original -----
> De: "Silvestre Figueroa" <silvestrefigueroa at gmail.com>
> À: "pve-user" <pve-user at pve.proxmox.com>
> Envoyé: Mercredi 20 Septembre 2017 16:54:23
> Objet: Re: [PVE-User] Multiple bridge on single physical interface

> Hi Jean!
> 
> 2017-09-20 11:37 GMT-03:00 Jean-mathieu CHANTREIN <
> jean-mathieu.chantrein at univ-angers.fr>:
> 
>> Hello.
>>
>> I try to make this:
>>
>> (1)
>> <physical_interface0>-----<vmbr0>-----<subnetwork1>
>> |
>> |--------------------<vmbr1>-----<subnetwork2>
>>
>> But apparently, one physical interface can't have 2 virtual bridge. So I
>> try this:
>>
>> (2)
>> <physical_interface0>-----<vmbr0>-----<subnetwork1>
>> |
>> <virtual_interface_on_physical_interface0>----------
>> ----------<vmbr1>-----<subnetwork2>
>>
>> But my virtual interface is not recognize, because I have to fixe an ip
>> address to the virtual interface and I don't want make this trick.
>>
>> Globally, I want to make this:
>>
>> |-----<host1>
>> | |-----<physical_interface0>-----<vmbr0>-----<subnetwork1>
>> | |
>> | |--------------------<vmbr1>-----<subnetwork2>
>> |
>> |-----<host2>
>> | |-----<physical_interface0>-----<vmbr0>-----<subnetwork1>
>> | |
>> | |--------------------<vmbr1>-----<subnetwork2>
>> |
>> |-----<host...>
>> ...
>>
>>
>> VM in subnetwork1(resp.2) on host1 must be communicate with VM in
>> subnetwork1(resp.2) on host2 via just one single interface and my host must
>> be not reacheable by subnetwork.
>>
>> How I can make this ?
>>
> 
> 
> if i understood correctly, you need to use single ethernet interface as a
> trunk.
> 
> If you have a L3 switch with vlans support, you can make a bond to eth
> interface, then assign the bond to a single vmbr and use this vmbr in all
> your vms.
> 
> When configuring the VM network, you can specify different vlan tag to
> separate the networks at server side.
> 
> Then, at Switch side, you must to separate networks (vlans) using untagged
> vlan ports.
> 
> but this schemma is possible if you have vlans support at Switch.
> 
> <hos1>vlan100  ----vmbr1----bond0-------eth1-----\
> /----port_for_vlan100
> 
> +----Switch------X
> <host2>vlan200 ----vmbr1----bond0-------eth1-----/
> /----port_for_vlan200
> 
> Switch port for server uplink needs to be configured as trunk.
> 
> Sorry for my english!
> 
> 
>>
>> I tryed to address my virtual_interface or enable proxy_arp on the
>> physical interface but without success...
>>
>> If you have any idea...
>>
>> Best regards.
>>
>> Jean-Mathieu
>>
>>
>>
>>
>>
>>
>>
>>
>>
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>>
> 
> 
> 
> --
> ING. SILVESTRE E. FIGUEROA
> IT Consultant
> Mobile: +542616462632
> Skype: silvestrefigueroa
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