Hi Linda,

Please see inline.

 - Larry

From: Linda Dunbar <[email protected]<mailto:[email protected]>>
Date: Monday, September 9, 2013 1:30 PM
To: Larry Kreeger <[email protected]<mailto:[email protected]>>
Cc: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>
Subject: Questions to draft-ietf-nvo3-nve-nva-cp-req-00

Larry, et al,

Section 3 of the draft states that the scenario of NVE residing on a physical 
network switch is not in the scope being discussed in this draft (last sentence 
of the second paragraph).

LK> Right, it says it is covered in draft-kreeger-nvo3-hypervisor-nve-cp-req 
which is recently expired, but I am in the process of updating (so it will be 
back).

But the bullet 3 in the same section states:

[cid:[email protected]]

Are those “End Devices” different from the “Tenant System”? Are there any 
indication to differentiate “End Devices” from “Tenant Systems”?

LK> Yes, these End Devices are not Tenant Systems.  As you quoted above "a 
hypervisor or a Network Service Appliance" is not a Tenant System.  Here is the 
definition from draft-ietf-nvo3-framework:

LK>"End Device: A physical device that connects directly to the DC Underlay 
Network. This is in contrast to a tenant system, which connects to a 
corresponding tenant VN. An End Device is administered by the DC operator 
rather than a tenant, and is part of the DC infrastructure. An End Device may 
implement NVO3 technology in support of NVO3 functions. Examples of an End 
Device include hosts (e.g., server or server blade), storage systems (e.g., 
file servers, iSCSI storage systems), and network devices (e.g., firewall, 
load-balancer, IPSec gateway). "

Another question, why have two places to define the  NVE-NVA requirement, one 
for NVE being embedded on Hypervisor, one for NVE being on separate physical 
switches?

LK> The requirements for the NVE to NVA control plane are exactly the same 
regardless of whether the NVE is embedded within and End Device (e.g. 
Hypervisor), or in a physical switch.  The second paragraph of section 3 is 
trying to say that the Hypervisor to NVE protocol is covered in 
draft-kreeger-nvo3-hypervisor-nve-cp-req, not that that embedded NVEs is out of 
scope for the NVE to NVA control plane.  Please let me know how I can reword it 
to make it more clear.

I see the requirement for both scenarios quite similar. Can you elaborate the 
major differences?

LK> It think they are identical.

Linda

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