A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Network Performance Isolation in Data Centres using Congestion Policing
Author(s) : Bob Briscoe
Murari Sridharan
Filename : draft-briscoe-conex-data-centre-01.txt
Pages : 24
Date : 2013-02-25
Abstract:
This document describes how a multi-tenant (or multi-department) data
centre operator can isolate tenants from network performance
degradation due to each other's usage, but without losing the
multiplexing benefits of a LAN-style network where anyone can use any
amount of any resource. Zero per-tenant configuration and no
implementation change is required on network equipment. Instead the
solution is implemented with a simple change to the hypervisor (or
container) beneath the tenant's virtual machines on every physical
server connected to the network. These collectively enforce a very
simple distributed contract - a single network allowance that each
tenant can allocate among their virtual machines, even if distributed
around the network. The solution uses layer-3 switches that support
explicit congestion notification (ECN). It is best if the sending
operating system supports congestion exposure (ConEx). Nonetheless,
the operator can unilaterally deploy a complete solution while
operating systems are being incrementally upgraded to support ConEx
and ECN.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-briscoe-conex-data-centre
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-briscoe-conex-data-centre-01
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-briscoe-conex-data-centre-01
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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