Routing Optimization with SDN in Data Center Networks
draft-kong-sdnrg-routing-optimization-sdn-in-dc-02
|
| Document |
Type |
|
Active Internet-Draft (individual)
|
|
Last updated |
|
2017-04-10
|
|
Stream |
|
(None)
|
|
Intended RFC status |
|
(None)
|
|
Formats |
|
plain text
pdf
html
bibtex
|
| Stream |
Stream state |
|
(No stream defined) |
|
Consensus Boilerplate |
|
Unknown
|
|
RFC Editor Note |
|
(None)
|
| IESG |
IESG state |
|
I-D Exists
|
|
Telechat date |
|
|
|
Responsible AD |
|
(None)
|
|
Send notices to |
|
(None)
|
SDNRG Q. Kong
Internet Draft T. Gao
Intended status: Informational BUPT
Expires: October 2017 D. Wang
Z. Wang
J. Wang
ZTE
B. Guo
S. Huang
BUPT
April 11, 2017
Routing Optimization with SDN in Data Center Networks
draft-kong-sdnrg-routing-optimization-sdn-in-dc-02
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that other
groups may also distribute working documents as Internet-Drafts.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html
This Internet-Draft will expire on October 11, 2017.
Copyright Notice
Copyright (c) 2016 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
Kong, et al. Expires October 11, 2017 [Page 1]
Internet-Draft Routing Optimization with SDN in DC Networks October 2017
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document.
Abstract
With the open and standard programmatic interface and the flexibility
of controlling network, Software Defined Network (SDN) can obviously
simplify and integrate operation and business support systems. As a
consequence, to satisfy the rising switching demand in the data
center network, it is a good option to adopt SDN technology. In
addition, current architecture of data center network is far from
ideality, which results in the low utilization rate in bandwidth
resource. For example, mice flow cannot be well effectively served in
the conventional Wavelength Division Multiplexing (WDM) optical
network with at least 50GHz spectrum interval. From a data center
network perspective, it is necessary to further improve the resource
utilization efficiency and the flexibility of coping with different
traffic.
This document described an optical data center interconnect, which
comprises both the fixed and flexible grid transceivers. A traffic
monitor is implemented in the SDN-based data center network to
evaluate the coming traffic demands and allocate appropriate spectrum
for the request. For instance, mice flow can be served by fixed grid
transceivers, well the elephant flows can be transmitted by the
flexi-grid transceiver using multiple subcarriers to form a
superchannel. Thus, spectrum efficiency is optimized and bandwidth
utilization is improved dramatically.
Table of Contents
1. Introduction ................................................ 3
2. Conventions used in this document ........................... 3
3. Required Technology ......................................... 4
4. Data center interconnect .................................... 5
5. Traffic-Monitor based routing in data center networks ....... 6
6. Dynamic traffic demand recognition scheme ................... 7
7. Security Considerations ..................................... 8
8. IANA Considerations ......................................... 8
9. Conclusions and Use Cases ................................... 8
10. References ................................................. 9
10.1. Normative References .................................. 9
10.2. Informative References ............................... 9
Kong, et al. Expires October 11, 2017 [Page 2]
Internet-Draft Routing Optimization with SDN in DC Networks October 2017
Show full document text