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From Salvatore Orlando <Salvatore.Orla...@eu.citrix.com>
Subject RE: Quick question on physical networks
Date Tue, 08 May 2012 15:10:54 GMT
> -----Original Message-----
> From: Venkata SwamyBabu Budumuru
> [mailto:venkataswamybabu.budumuru@citrix.com]
> Sent: 08 May 2012 16:02
> To: cloudstack-dev@incubator.apache.org
> Subject: RE: Quick question on physical networks
> 
> Hi Salvatore,
> 
> Yes, you will be able to have multiple physical networks with each having a
> guest traffic type. Below mentioned is high-level steps on how to achieve
> this.
> 
> - Let's assume I have a xenserver with eth0 and eth1
> 	Eth0 : xenbr0 : network-label = cloud-eth0
> 	Eth1 : xenbr1 : network-label = cloud-eth1
> - Phy1
> 	* Traffic type = Guest
> 	- Depends on the hypervisor, you need to configure traffic label
> 	- For example: in case of Xen, you need to set Xen traffic label to
> "cloud-eth0"
> 
> - Phy2
> 	* Traffic Type = Guest
> 	- Depends on the hypervisor, you need to configure traffic label
> 	- For example: in case of Xen, you need to set Xen traffic label to
> "cloud-eth1" (NOTE: This not necessarily be a different network label. It can
> be same as above as well)
> 
> Since you have multiple Guest networks, in order to make use of it we need
> define tags to each of these physical networks.
> 
> For Ex :
> 	Phy1	:	Tag1
> 	Phy2	:	Tag2
> 
> When you create network offering you have to define above tag to it. So that
> it could let guest VMs which uses that network offering pick right network
> label (cloud-eth0/cloud-eth1). Please let me know if you need any other
> info.
> 
> Thanks,
> SWAMY
> 
> -----Original Message-----
> From: Salvatore Orlando [mailto:Salvatore.Orlando@eu.citrix.com]
> Sent: Tuesday, May 08, 2012 8:10 PM
> To: cloudstack-dev@incubator.apache.org
> Subject: Quick question on physical networks
> 
> Hi,
> 
> If I define two physical networks for a zone, say Phy1 and Phy2, can I have
> distinct guest traffic labels on each network?
> If yes (which I doubt), how can I specify that a logical network should be built
> using a particular guest traffic label.
> 
> Regards,
> Salvatore

Hi Swamy, 

Thanks for your prompty reply. 
I think you explanation clarifies everything. I was missing the physical network tags bit,
so I was struggling to understand how we can deal with guest traffic on different physical
networks.

Regards,
Salvatore

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