A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : MPLS-Based Hierarchical SDN for Hyper-Scale DC/Cloud
Authors : Luyuan Fang
Vijay Gill
Deepak Bansal
Fabio Chiussi
Chandra Ramachandran
Shahram Davari
Linda Dunbar
Barak Gafni
Andrew Qu
Jeff Tantsura
Yakov Rekhter
Filename : draft-fang-mpls-hsdn-for-hsdc-02.txt
Pages : 31
Date : 2015-03-27
Abstract:
This document describes Hierarchical SDN (HSDN), an architectural
solution to scale the Data Center (DC) and Data Center Interconnect
(DCI) networks to support tens of millions of physical underlay
endpoints, while efficiently handling both Equal Cost Multi Path
(ECMP) load-balanced traffic and any-to-any end-to-end Traffic
Engineered (TE) traffic. HSDN achieves massive scale using
surprisingly small forwarding tables in the network nodes. HSDN
introduces a new paradigm for both forwarding and control planes, in
that all paths in the network are pre-established in the forwarding
tables and the labels can identify entire paths rather than simply
destinations. The HSDN forwarding architecture is based on four main
concepts: 1. Dividing the DC and DCI in a hierarchically-partitioned
structure; 2. Assigning groups of Underlay Border Nodes in charge of
forwarding within each partition; 3. Constructing HSDN MPLS label
stacks to identify endpoints and paths according to the HSDN
structure; and 4. Forwarding using the HSDN MPLS labels.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-fang-mpls-hsdn-for-hsdc/
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-fang-mpls-hsdn-for-hsdc-02
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-fang-mpls-hsdn-for-hsdc-02
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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