Internet DRAFT - draft-li-nov3-clouddatacenter-requirement
draft-li-nov3-clouddatacenter-requirement
Network Virtualization Overlays Chen. Li
Internet-Draft Rong. Gu
Intended status: Standards Track China Mobile
Expires: January 09, 2014 July 08, 2013
Network as a service requirement in cloud datacenter
draft-li-nov3-clouddatacenter-requirement-00
Abstract
This document describes some specific features in CDC, especially in
the public cloud.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Problem statement . . . . . . . . . . . . . . . . . . . . . . 2
3. Solution . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 3
5. References . . . . . . . . . . . . . . . . . . . . . . . . . 3
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 3
1. Introduction
CDC (Cloud Data Center) network has the fastest innovation of the
network standards and the most proposed technology. Especially in
the public clouds. From our prespective, there are several network
capacity can be sold by public clouds' operator: IP address, VLAN,
bandwidth, loadbalance, firewall and some other network resouces.
The target of NAAS(network as a service) is to provide end to end
virual network with above capacity for tenants in datacenter.
However, many taditional tochonlogy become the bottleneck of public
cloud service, such as the number of VLAN. It becomes unable to meet
the constantly updated needs of providing users with the hosted
networks for the data segregation.
In this draft, we forcus on proposing network requirement of NAAS.
2. Problem statement
NAAS is supposed to provide a virtual CDC network for a tenant. we
propose four specific network features of NAAS as follows
a. The isolation of different tenants
Different tenants are isolated by vpn, No matter layer 2 or layer 3,
no matter by vlan tag or mpls tag or some others. Meanwhile, the
network service devices, such as loadbalance and firewall, also need
to be isolated.tenants have a logical isolated network, which can be
implement any IP and VLAN by themselves (different tenants should
reused IP/VLAN).
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b. tenant's logical network in GUI
tenant's logical network GUI should be simple and intuitive. For
example it only display a L2 switch, a L3 gateway, a broader router,
a loadbalance, a firewall and some other security devices. All the
link is logical. VMs or servers connect to these logical network
devices.
c. bandwidth guarantee
Each logical network should allocate the specific end to end
bandwidth, including server uplink switch port rate, switch to
gateway link rate, gateway to LB/FW link rate and broader router link
rate.
all the logical bandwidth allocation should map in physical network
devices.
d. self network management
Each tenant manage and config their own logical network. While
operator is responsible for the physical one.
3. Solution
to be continued.
4. Acknowledgements
5. References
Authors' Addresses
Chen Li
China Mobile
Unit2, Dacheng Plaza, No.28 Xuanwumenxi Ave, Xuanwu District
Beijing 100053
P.R. China
Email: lichenyj@chinamobile.com
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Rong Gu
China Mobile
Unit2, Dacheng Plaza, No.28 Xuanwumenxi Ave, Xuanwu District
Beijing 100053
P.R. China
Email: arielgurong@gmail.com
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