Tom,

I am a bit confused in your comments. DC operators own and manage both Server 
devices and networks devices. When they construct a VN by using their devices 
for a tenant, why a VN and underlying network has to be considered as 
Untrusted? What do I miss here?

>From the tenant perspective, they just run the applications on the VN and do 
>not aware of underlying network existence, the trust/untrust does not exist 
>between the tenant and underlying network. IMO: the nvo3 work is to make the 
>VN be trusted by a tenant.

Regards,
Lucy  

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Thomas 
Narten
Sent: Wednesday, July 11, 2012 8:59 AM
To: [email protected]
Cc: [email protected]
Subject: Re: [nvo3] TES-NVE attach/detach protocol security (mobility-issues 
draft)

[email protected] writes:

> There may exist different cases: 
> 
> Case 1: Virtual network and underlying infrastructure belong to the
>         same DC operator, In this case, the underlying infra can be
>         trusted

Can you clarify a bit? When you say "virtual network", isn't that the
tenant network, which by definition is separate from the DC operator
network? I would assume that the VN and underlying infrastructure
never trust each other.

> Case 2: Virtual network and underlying infrastructure belong to
>         different DC operators, In this case, different operator may
>         have different security policies. So the underlying infra can
>         be considered as Untrusted.

I would assuem this is the case we care about.

Thomas

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