Marc,
Text:
NVO3 Network: An overlay network that provides an Layer2 (L2) or
Layer3 (L3) service to Tenant Systems over an L3 underlay network
using the architecture and protocols as defined by the NVO3 Working
Group.
This is a clear definition.
However, in section 2.1, the text and draw are a bit fuzzy.
Figure 2 depicts a DC reference model for network virtualization
using L3 (IP/MPLS) overlays where NVEs provide a logical
interconnect between Tenant Systems that belong to a specific VN.
Comment: why use L3 (IP/MPLS) overlays in the general reference model?
+--------+ +--------+
| Tenant +--+ +----| Tenant |
| System | | (') | System |
+--------+ | ................. ( ) +--------+
| +---+ +---+ (_)
+--|NVE|---+ +---|NVE|-----+
+---+ | | +---+
/ . +-----+ .
/ . +--| NVA | .
/ . | +-----+ .
| . | .
| . | L3 Overlay +--+--++--------+
+--------+ | . | Network | NVE || Tenant |
| Tenant +--+ . | | || System |
| System | . \ +---+ +--+--++--------+
+--------+ .....|NVE|.........
+---+
|
|
=====================
| |
+--------+ +--------+
| Tenant | | Tenant |
| System | | System |
+--------+ +--------+
Figure 2 : Generic reference model for DC network virtualization
over a Layer3 (IP) infrastructure
IMO: Figure title and the above text are not consistent.
Suggested text:
Figure 2 depicts a DC reference model for network virtualization
overlay where NVEs provide a logical interconnect between Tenant
Systems that belong to a specific VN.
replace "L3 Overlay Network" in the figure with "Overlay Network", and explain
that the overlay network boundary is at NVEs. (i.e. shown as the dotted box).
The line between NVE-NVA represents the interface between each NVE and an NVA.
BTW, there is a missing line between one NVE and NVA in the draw.
Thanks,
Lucy
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
[email protected]
Sent: Tuesday, November 12, 2013 11:13 AM
To: [email protected]
Cc: [email protected]
Subject: [nvo3] I-D Action: draft-ietf-nvo3-framework-04.txt
A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Network Virtualization Overlays Working Group
of the IETF.
Title : Framework for DC Network Virtualization
Author(s) : Marc Lasserre
Florin Balus
Thomas Morin
Nabil Bitar
Yakov Rekhter
Filename : draft-ietf-nvo3-framework-04.txt
Pages : 25
Date : 2013-11-12
Abstract:
This document provides a framework for Network Virtualization over
L3 (NVO3) and it defines a reference model along with logical
components required to design a solution.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-nvo3-framework
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-nvo3-framework-04
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-nvo3-framework-04
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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