From mike at m5computersecurity.com  Sat Dec  5 04:02:16 2009
From: mike at m5computersecurity.com (Michael J McCafferty)
Date: Sat Dec  5 04:04:27 2009
Subject: [M5Hosting] Network Maintenance Announcement for Sunday 12/6/09
Message-ID: <1260014536.17875.1781.camel@mike-desktop>

Dear Valued M5Hosting Customer,

	We will be performing some work during our next regular Network
Maintenance Window which may affect you.

	We will be replacing our border routers and distribution layer switches
with a redundant pair of Cisco 6509s with SUP720-3BXL Supervisor
Engines. This upgrade vastly improves our network capacity, flexibility
and capability. This upgrade will also simplify the architecture and
improve performance for both PremiumNet and ValueNet.

	This work will take several hours but is only expected to cause very
brief interruptions in service to you as the data path is moved to the
new hardware and tested. We will take down the redundant half of the
network, plumb up the new hardware in it's place, test it, then transfer
functionality to the new hardware. Then we will move the second half to
the new hardware and restore full redundancy and test automatic
failover. This procedure will ensure a minimal interruption. There will
be some short interruptions as network protocols such as BGP, OSPF, STP,
VRRP and HSRP do their jobs as the topology changes and tests are
performed.

	The timing of this upgrade was chosen for the lowest impact possible on
our customers and to ensure there will always be ample capacity and the
best performance possible for you.

Window Start: Sunday 12/6/09 02:00 PDT
Window End: Sunday 12/6/09 06:00 PDT
Impact: Customer on all networks may notice a few short interruptions
ranging from a few seconds to a minute over the course of the several
hour window.

	As always, we appreciate your feedback regarding this email, or the
work it describes. That thought you just had a moment ago... care to
share it with us? Drop us a line.

Thank you!
Mike
-- 
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Michael J. McCafferty
Principal
M5 Hosting
http://www.m5hosting.com

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