The return of MAN

NETWORK WORLD NEWSLETTER: STEVE TAYLOR AND JIM METZLER ON WIDE
AREA NETWORKING
08/11/05
Today's focus: The return of MAN

Dear networking.world@gmail.com,

In this issue:

* Metropolitan-area networks return with sophistication
* Links related to Wide Area Networking
* Featured reader resource
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Today's focus: The return of MAN

By Steve Taylor and Jim Metzler

A few years ago, we were bombarded with articles announcing a
new generation of high-speed metropolitan-area network services
based on Ethernet. In our industry the hype surrounding new
products and services usually precedes the reality by several
years. That certainly has happened in the case of Ethernet MANs
where we are only now beginning to see a significant deployment
of such services.

One of the factors that limited the success of the MAN services
of a few years ago is that they were based on an enterprise
version of Ethernet. Over the last few years, we have begun to
see the development of a carrier class version of Ethernet that
is more appropriate for supporting service provider offerings
<http://www.webtorials.com/abstracts/Metrobility6.htm>

Based on this evolution of Ethernet, the MAN services that will
be deployed over the next few years will be more sophisticated
than their predecessors. Organizations that are evaluating MAN
services should ask the usual questions about coverage, pricing
and the availability of features such as bandwidth on demand.
These organizations should also dig deeper to understand the
service provider's MAN architecture. A key area to explore is
OAM - operations, administration and maintenance. The IEEE
802.ah working group has recently added a number of features
that improve the robustness of Ethernet services. Another area
to explore is whether or not the service provider intends to
extend MPLS to the customer premise. Extending MPLS to the
customer premise allows service providers to more easily offer
common QoS capabilities on an end-to-end basis.

The top 5: Today's most-read stories

1. Microsoft open source exec: Not the loneliest guy in Redmond
<http://www.networkworld.com/nlwan4897>

2. EMC announces surveillance management application
<http://www.networkworld.com/news/2005/080905-emc.html?t5>

3. DKIM fights phishing and e-mail forgery
<http://www.networkworld.com/nlwan4898>

4. Microsoft fixes Print Spooler, Plug and Play flaw
<http://www.networkworld.com/nlwan4899>

5. Sprint, Nextel expect to finish merger Friday
<http://www.networkworld.com/nlwan4900>
_______________________________________________________________
To contact: Steve Taylor and Jim Metzler

Steve Taylor is president of Distributed Networking Associates
and publisher/editor-in-chief of Webtorials. For more detailed
information on most of the topics discussed in this newsletter,
connect to Webtorials <http://www.webtorials.com/>, the premier
site for Web-based educational presentations, white papers, and
market research. Taylor can be reached at
<mailto:taylor@webtorials.com>

Jim Metzler is the Vice President of Ashton, Metzler &
Associates, a consulting organization that focuses on leveraging
technology for business success. Jim assists vendors to refine
product strategies, service providers to deploy technologies and
services, and enterprises evolve their network infrastructure.
He can be reached at <mailto:jim@ashtonmetzler.com>
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This newsletter is sponsored by Tacit Networks
Network World Executive Guide: Staying Focused on the Moving
Target that is Storage

Keeping pace with evolving storage strategies, architectures,
and trends is not unlike keeping pace with your organizations
underlying capacity needs. From ILM strategies to SAN management
to the threat of those USB memory sticks, this Network World
Executive Guide will help you stay focused on the moving target
that is Storage. Register now and get a free copy of Network
World's Storage Executive Guide.
http://www.fattail.com/redir/redirect.asp?CID=110002
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