Designing access to consolidated data centers

NETWORK WORLD NEWSLETTER: STEVE TAYLOR AND JIM METZLER ON WIDE
AREA NETWORKING
09/08/05
Today's focus: Designing access to consolidated data centers

Dear networking.world@gmail.com,

In this issue:

* The network access impact of data center consolidation
* Links related to Wide Area Networking
* Featured reader resource
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Today's focus: Designing access to consolidated data centers

By Steve Taylor and Jim Metzler

In the last newsletter, we discussed some of the issues
associated with data center consolidation. Today, we are going
to look at the impact that data center consolidation has on the
network access that is required into the consolidated data
centers.

Taking servers out of branch offices and placing them into
centralized data centers means increased WAN traffic. For
example, in order for employees who work in branch offices to
access the centralized servers, traffic that used to transit the
branch office LAN now transits the WAN. This increased WAN
traffic drives the need for higher speed access links into the
consolidated data centers.

As a company consolidates its data centers, it typically does
not reduce the amount of application traffic. Since the same
amount of application traffic is flowing to fewer data centers,
this also has the affect of requiring higher speed access into
the consolidated data centers.

In addition to driving the need for higher speed access, data
center consolidation also drives the need for data center access
that has higher availability. This follows because if one of the
consolidated data centers were unavailable due to a network
outage it affects a larger number of users than would have been
affected prior to data center consolidation.

We would like your input on this topic. In particular, what
technologies and network designs are you using for high-speed
access into your data centers? Are you exclusively using the
large incumbent carriers, or do you feel comfortable using less
established players?

The top 5: Today's most-read stories

1. Cisco Catalyst 4948-10GE aces performance tests
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2. 2005 salary survey <http://www.networkworld.com/nlwan4011>

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_______________________________________________________________
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>
_______________________________________________________________
This newsletter is sponsored by Tacit
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=112866
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FEATURED READER RESOURCE

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risks that have been overblown and shouldn't be scaring everyone
as much as they seem to be. For more, click here:

<http://www.networkworld.com/weblogs/security/009180.html>
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