I-D Action: draft-briscoe-conex-data-centre-02.txt
internet-drafts@ietf.org Fri, 14 February 2014 16:36 UTC
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Subject: I-D Action: draft-briscoe-conex-data-centre-02.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Network Performance Isolation in Data Centres using Congestion Policing Authors : Bob Briscoe Murari Sridharan Filename : draft-briscoe-conex-data-centre-02.txt Pages : 24 Date : 2014-02-14 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-02 A diff from the previous version is available at: http://www.ietf.org/rfcdiff?url2=draft-briscoe-conex-data-centre-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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