We will be also be upgrading our wireless network infrastructure this Sunday morning from approximately 7:30 until 9:00 am EDT.  During this period each WAP on campus will reboot causing a few minutes service interruption for the area it serves – the WAPs will reboot across campus at different times as their supporting controllers are upgraded.

We appreciate your patience as this essential work is completed.

Best regards,

Jim

(1)    At approximately 8 am we will be upgrading our domain name servers (DNS) to support separate on campus and off campus views.  While we do not expect any service impact, we are preforming this change during our maintenance window.

(2)    At approximately 9 am we will be upgrading our database infrastructure behind our primary web sites (www.middlebury.edu, www.miis.edu).  While we do not expect any service impact, we are preforming this change during our maintenance window.

Thanks for your patience as this essential work is completed.

(1)    Upgrade the “Go” Web Application server, we expect less than a 10 minute interruption of service at approximately 7:00 am.

(2)    Upgrade Central Authentication Service (CAS), we do not expect a service impact, this activity will also take place at approximately 7:00 am.

Thanks for your patience as we strive to keep our systems operating optimally.

The affected locations are:

220 College St

30 College St

70 Hillcrest

75 Franklin

Arabic House

Athletics

Atwater

Battell

BiHall (this building will be completed before 7:30 am)

Bowker Barn

Centeno

Chateau

Chellis

Coffin

Cousteau

Deanery

DKE

Earhart

FIC

Gifford

Hepburn

Kelly-Lang

Kitchel

McKinley House

Mill

Milliken-Hadley

Monroe

Painter

Palmer

Pearsons

Portuguese House

Public Safety (this building will be completed before 7:30 am)

Shannon St

Starr

Stewart

Sunderland

Voter

Wright

Youngman Field

Best regards,

Jim Stuart

–

Painter-House

Marbleworks

204-CollegeSt

FIC

Sunderland-Attic

Russian

Emma-Willard

Adirondack

Old-Chapel

108-South-Main

Walleye

Bread Loaf (all)

Snowbowl

LIS-Lib125-Imaging

McCullough

Mead

Hillcrest

Warner

Warner-Basement

Voter 1^st floor

Sunderland

Centenno

Youngman-Field

McKinley-House

Between 6 am and 7 am we will be replacing networking equipment that serves Proctor.  There will be less than a 30 minute network outage during this period to locations within Proctor including the book store, dining facilities and WRMC, this will include the radio transmission of WRMC.

Between 6:30 am and 8:00 am we will upgrade the network equipment that service the Biomass area within the Service Building.  There will be a less than 20 minute network outage during this period within the Biomass facility, Locksmith and Custodial Services locations.

Between 7:00 and 8:30 am we will be checking fiber connections that terminate in one of our primary data centers, while we do not expect any network impact, it is possible there may be several less than 1 minute interruptions of network connectivity to many buildings on campus.

Thanks for your patience as we strive to keep our network operating optimally.

Between  6:30 and 7:15 am the network core’s components will be upgraded.  While all of the components of the network core are redundant, not all parts of the network throughout the campus have a path back to both sides of the network core.  As a result there will be a 20 – 30 minute network service interruption for the majority of buildings on campus.

Between 7:00 and 8:15 am critical network aggregation switches that connect campus buildings and server farms to the network core will be upgraded.  This will result in a complete interruption of network connectivity of approximately 30 minutes throughout the campus.  This includes access to the College’s primary web sites, Email, MiddFiles – all systems hosted at Middlebury.

Between 7:45 and 9:00 am our border gateway routers and other components that connect the network core with the Internet will be upgraded.  We expect four 3-5 minute periods where Internet routing will be in flux and expect transient loss of Internet connectivity for the Middlebury campus.  During these four 3-5 minute periods, the VPNs with MIIS and Ellucian may be interrupted briefly, this would impact reaching Banner SSB and INB.

These network upgrades are essential and must be completed in a timely manner.  We appreciate your patience as we strive to keep our network operating optimally.

The Follow activities are planned for this Sunday morning during our established maintenance window between 6 and 10 am.

(1)    Between 6 and 7 am we will be reconfiguring a network security appliance that lives in our path to our Internet services providers.  We do not expect a noticeable service impact.

(2)    Between 6 and 7 am we will be performing essential maintenance on our network core.  We do not expect a noticeable service impact.

(3)    Between 6 and 7 am we will be dual-homing outer core network switches that provide connectivity to the below buildings, we do not expect a noticeable service impact:

DKE

Centenno

Center for the Arts

All of Athletics

Kirk

McKinley House

Prescott

Brackett

Bowker Barn

Palmer

Brooker

Modular Houses

Recycling

Stewart

Robert A. Jones

McCullough

(4)    Between 7: 45 and 8:45 we will be upgrading the servers that provide caching of our primary web sites (www.middlebury.edu, www.miis.edu), we do not expect a noticeable service impact.

(5)    Between 6 and 10 am we will be upgrading a number of network switches throughout the Middlebury campus.  There will be an approximately 15 minute network service interruption during this period to the following buildings:

Twilight
95-South-Main
108-South-Main
51-Franklin
Holmes
Jewett
Mill
Sperry

Weybridge
Axinn
Haddock (library)
RAJ
97-Adirondack
Turner
New-Portugeuse
5-Court St
Painter-House
Kirk
Yongman-Field
McKinley-House
All of Athletics
Farrell
Chellis
FIC-Reprographics
FIC-Mailing-Svcs
Johnson
Center for the Arts
Service Building
Brackett
Bowker-Barn
Munroe
Prescott
Brooker

Cousteau
Earhart
Norgay
Peary
Ride
Palmer
Brackett
Munford
Meeker
Allen
Atwater
Littlebrown-House
Portugese-House
220 College St
Ross
Emma-Willard
KDR
Porter
Weybridge
Deanery
30-College-St
Sperry
75-Franklin
Gifford-Consolidation
20-Adirondack
23-Adirondack
70-HillcrestBowker-House
Russian
Homer-Harris-House
Harris-Farm-House
Turner
Perkins

(1)    Between 6:00 and 7:00 we’ll be upgrading the operating system of one of our building network aggregation switch, this will result in an interruption of network connectivity for about 15 minutes to the following buildings:

• Sunderland
• FIC
• Hathaway
• Emma-Willard
• Marbleworks
• Munford
• Small student houses on west side of campus
• Adirondack
• Public Safety
• Wright
• Johnson
• Gifford
• Painter
• DKE
• Hesselgrave
• Farrell
• Voter faculty and students

(2)    Between 6:00 and 7:00 am we’ll be dual-homing a server farm aggregation network switch, we do not expect any network impact of this activity.

(3)    Between 6:30 and 7:30 we’ll be enhancing the routing exchange on our border gateway routers and with our Internet Service Providers.  We don’t expect an interruption of Internet connectivity, worse case is a less than 10 minute interruption.

(4)    Between 7:00 am 8:00 we’ll be upgrading the network bandwidth from 1 Gbps to 10 Gbps for McCullough, there will be an interruption of network connectivity to McCullough for less than 15 minutes.

We appreciate your patience as we continue to enhance the performance and reliability of our IT infrastructure.

(1)    Between 6:30 and 7:30 we’ll be applying some security patches to the Library server “zeppo”.  We expect a less than 10 minute outage of the following services:  MiddCat, My MiddCat, Ilsley cataglog, Sheldon catalog, the Millennium client used by library staff.

(2)    Between 6:30 and 7:30 we’ll upgrade the Service Building network connection to 10 Gbps from 1 Gbps .  This will interrupt all network services to the Service Building for less than 20 minutes.

(3)    Between 7:00 and 8:30 we’ll re-route the network fiber connections for Stewart.  This will interrupt all network services Stewart for less than 10 minutes.

(4)    Between 7:00 and 9:00 we’ll re-route the network fiber connections and switch out some associated infrastructure for McCullough.  This will interrupt all network services to McCullough for 2 less than 10 minute periods.

(5)    Between 7:30 and 9:30 we’ll re-route the network fiber connections that provide connectivity to the large dorms on the north side of campus.  This will interruption all network connections to these buildings 2-3 times for less than 2 minutes each.

(6)    Between 7:30 and 9:30 we’ll re-route the network fiber connections that provide connectivity to BiHall.  This will interrupt all network connections to BiHall for less than 2 minutes.

We appreciate your patience as we continue to enhance the performance and reliability of our IT infrastructure.