[telco-cg] Excerpt of article to appear in next week's issue of g ridtoday- relating to telco grid
travos at nortel.com
Thu Jul 28 10:23:26 CDT 2005
thank you for the sneak preview.
>this author continues to be troubled by the lack of attention given
>to networking grid sites
Hereafter my own solace to that troubling thought. With Grids still
trying to break through mainstream adoption and validation in the
F500, I believe that the networking ecosystem (vendors, providers
...) is moving in several directions to fill the pipeline now in
preparation for tomorrow's scaling of Grids. There are several
stepping stones, which are not necessarily labeled as "Grid" steps
(e.g., virtualization) and can serve several purposes. Some of these
stepping stones call for prep activities within a number of SDOs (not
just GGF), whereas others possibly call for internal re-structuring
of operations (e.g., greater horizontal integration, greater L4-7
Also, the Grid movement has originated in a HPC reality blessed with
plentiful ad-hoc networks and ad-hoc operation of the same. While it
has grown by leaps and bounds since then, we don't seem to have heard
enough real-life use case stories to balance off that original view,
especially when it comes to utilization of the network. Hence the
continued quest for use cases with a documented strong network pull
(within telco-cg, and the ghpn-rg prior to that).
>There was no discussion of this at all at the Grid VIP Summit
I will be looking for the minutes to find out what does make it to
these VIPs' short list of to-do's.
>no follow-up from last October's OIF-GGF grid networking workshop
Since last October when I presented at the OIF, I have kept regular
communication with the OIF (GHPN hat on). At the Telco-CG interim
meeting at Supercomm, an OIF representative (Jonathan Sadler)
responded to my invitation and gave a live account of the OIF
Supercomm 05 demo, which breaks new grounds in multi-vendor dynamic
provisioning while showing quite an impressive roster of
participants. The GGF attendees resonated with the Grid potential.
There is a plan to work on an action register that is of mutual
appeal to OIF and GGF.
>and no resolution of the rampant confusion at the GGF14 Telco
>Community Group meeting
"rampant confusion" reads to me as a fairly severe judgement of the
1st official meeting of a newly chartered group, when there is
nothing written down in a draft document just yet, and purposely so.
The GGF and the Telco CG are a volunteer army. I hope that we
continue to enlist your support and contributions. I appreciated your
kicking off a discussion and bringing us back from summer vacations.
At 08:41 PM 7/27/2005, Alan Weissberger wrote:
>All Telco CG members,
>Thought this might be of interest to the telco cg mail list,
>expecially since nothing besides the GGF14 minutes have been posted
>there so far.
>The extract below is in the closing comments section of the article:
>On a different thread, this author continues to be troubled by the
>lack of attention given to networking grid sites -even within a
>single organization grid. There was no discussion of this at all at
>the Grid VIP Summit, no follow-up from last October's OIF-GGF grid
>networking workshop, and no resolution of the rampant confusion at
>the GGF14 Telco Community Group meeting (see meeting report at
>While the US government funded TeraGrid project provides 10-30 G
>bit/sec interconnections between grid sites, nothing close to that
>is feasible in the commercial or enterprise grid world. Not only
>would such high speed connections be prohibitively expensive for the
>enterprise customer, but not even a fraction of that bandwidth is
>generally available for nationwide connections - at any price!
>The enterprise grid user must try to match the 1/10 G bit/sec
>Ethernet connections in his data center and campus network with what
>is available in the metro and wide area networks. Today, most
>commercial users interconnect grid sites using private lines- often
>by leasing DS3/E3 or dark fiber- at much lower rates than their
>campus LAN backbones. But there are limits to connectivity and
>scalability with this approach and the burden of managing the
>network is on the enterprise.
>What role will the telcos play in grid networking? The driving
>factor for a telco grid network service offering will be to
>effectively use the assets it already owns and to realize a
>reasonable return on investment. What type of network service (point
>to point, IP packet, Ethernet virtual private line or virtual
>private LAN, etc), at what speeds, and with what QoS/ SLAs would
>generate the highest take rate, revenue and ROI for the telco? What
>price should be charged for such a service? Is there an elasticity
>of demand in such an offering?
>Many other questions arise. When grids move from regional to
>national to global, how will they then be interconnected? Will it be
>a seamless evolution/ migration or disruptive? When a single
>organization grid is opened up to collaborators, partner companies,
>and customers (as John Hurley of Boeing suggested) how will network
>access be achieved? Where will the enterprise grid networking
>specifications and best practices recommendations be developed? What
>type of network topology and connectivity arrangement works best for
>the majority of industry grids? Will that network technology
>adequately scale to accommodate more sites, more users, or more
>servers at any one site? What about disaster recovery? Finally, who
>will be the primary grid network provider - the user (or community
>of users), the grid hardware vendor (IBM, HP, SUN), or the network
>facility vendor (BT)?
>Unless some answers emerge soon, grids are likely to be confined to
>a single campus network with 1/10Gig Ethernet links used for
>interconnection. This limits the size of the grid market, because it
>excludes interconnection of multiple, geographically dispersed grid
>sites. We are astonished that the telcos (with the exception of BT)
>are not more inquisitive and proactive in the emerging grid
>networking market and wonder if they are not missing out on a
>significant new source of revenue.
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