This one is for J04 people - and only those hanging about J04 on a Sunday (or remote accessing machine J04 on a Sunday.

I don't know the exact details, I assume a network core upgrade. The outage for the ACFR may only be partial due to the fact the ACFR specific networks are hosted in J18/J19 and not in J13 with the rest of engineering networks.

-------- Forwarded Message -------- Subject: ICT Planned Network Maintenance and Service Outage Notification - Sunday 28th June, 8.00am to 6.00pm Date: Wed, 10 Jun 2026 11:05:13 +1000 From: Christopher Hine christopher.hine@sydney.edu.au CC: Christopher Hine christopher.hine@sydney.edu.au

A message to inform you about *continuous improvement in University technology*

The University of Sydney

*ICT Planned Network Maintenance *

Dear colleagues,

As part of the ICT Network maintenance program, the existing network equipment has reached End of Support (EOS) status and is no longer supported by the vendor. To ensure continued reliability and readiness for the planned SydNet6 migration in Q3/Q4 2026, we will be undertaking network switch hardware upgrades across the affected buildings.

During these works, wired and wireless network services will be unavailable for approximately 20–30 minutes per level within each building as the upgrade progresses.

*Date: Sunday 28th June,2026 Start Time: 08:00 End Time: 18:00*

Service Impact:

* Rolling outage schedule across multiple buildings. * Approximate outage duration of 20–30 minutes per level, per building. * Both wired and wireless network services will be affected during the upgrade window. * Wired and wireless (Wi-Fi) network services will be unavailable during this change period, including the following: internet, intranet, VOIP phones, wireless services, printers, building management system, fire system, closed-circuit television, and Central Operations Services (COS) managed services.

ICT Change Advisory Board (CAB) record: *TBC*

Further information on this upgrade is available on the Services Portal https://url.au.m.mimecastprotect.com/s/YeK8Cnx1jni67ygoKUKSnFJfrVN?domain=t.e2ma.net.

Important information:

·'Network outage’ means that all wired ethernet network and internet services will be unavailable during the timeframe.

·There will be no connectivity for any wired equipment that relies on the network or internet, including computers, printers, and audio-visual equipment.

·Services such as building air conditioning, power and water will not be disrupted.

·Work will be undertaken only in the communications rooms within the building (not in office spaces) and will not result in disruptive noise.

Building Code

Building Name

Planned Network Outage Window

J13

Engineering Link

08:00am to 12:00 (noon), approx. 30 minutes service interruption per building level/ floor

J03

Electrical Engineering

08:00am to 12:00 (noon), approx. 30 minutes service interruption per building level/ floor

J11

Aeronautical Engineering

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

J09

Seymour Centre

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

J07

Mechanical Engineering

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

J04

Rose Street

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

J03

Electrical Engineering

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

J02

PNR

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

G01

Wentworth

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

C81

Biomedical, ATP

11:00am to 17:00, approx. 30 minutes service interruption per building level/ floor

Action for you:

·Forward this email to any colleagues who need to be aware of this upcoming building-specific outage.

·Save any work that is reliant on network connections well before the work commences.

·After the outage: people using a 'bring your own device' (BYOD) https://url.au.m.mimecastprotect.com/s/tuFiCoV1kpfKro5zBTNT0FpSH_e?domain=t.e2ma.net are strongly encouraged to use the wireless connection on their device, if a wired connection is required you will need to change the settings on the device to use the wired network connection.

·Alternate campus work locations during this period;

*University Library facilities* https://www.library.sydney.edu.au/visit https://www.library.sydney.edu.au/visit

*Learning Hub facilities* A number of Learning Hubs will be open and available 24 hours https://www.library.sydney.edu.au/visit#learning-hubs https://www.library.sydney.edu.au/visit#learning-hubs

Further information is available on the Services Portal https://url.au.m.mimecastprotect.com/s/eGC8Cp81lrtxnlq8vhBU1FGsJsV?domain=t.e2ma.net.

Questions about this work can be directed to Christopher Hine on 0400 760 936 or email christopher.hine@sydney.edu.au mailto:christopher.hine@sydney.edu.au

We apologise for any inconvenience this may cause and appreciate your patience and continued support while these essential infrastructure improvements are completed.

Regards,

Project Team

Information and Communications Technology (ICT)

The University of Sydney

Keep in touch

Yammer https://url.au.m.mimecastprotect.com/s/l-3xCq71mwf784n5zu2c9FEI83V?domain=t.e2ma.net

Copyright © 2024 The University of Sydney, NSW 2006 Australia Phone +61 2 9351 2222 ABN 15 211 513 464 CRICOS Number: 00026A

Please addchristopher.hine@sydney.edu.au mailto:christopher.hine@sydney.edu.au to your address book or senders safe list to make sure you continue to see our emails in the future.

Manage https://url.au.m.mimecastprotect.com/s/s5nWCk81N9tqOLAQrTNF9FGOZeP?domain=app.e2ma.net your preferences | Opt out https://url.au.m.mimecastprotect.com/s/UzDIClx1Njiz29mZASjHZFzQw6b?domain=t.e2ma.net from these emails Got this as a forward? Sign up https://url.au.m.mimecastprotect.com/s/qqouCmO5gluRj08nAILIGFRBGXQ?domain=app.e2ma.net/ to receive our future emails. View this email online https://url.au.m.mimecastprotect.com/s/sf-ZC6XQ4LfGr37K1spfJF52QFp?domain=t.e2ma.net.

Disclaimer https://url.au.m.mimecastprotect.com/s/9EhfCr81nytD8N7v1HRfxF4Sx37?domain=t.e2ma.net| Privacy statement https://url.au.m.mimecastprotect.com/s/OAJCCvl1rKiy7Bq62FnhLFQB86L?domain=t.e2ma.net | University of Sydney https://url.au.m.mimecastprotect.com/s/AoHzCwV1vMfRGOk1AIGigFJflVf?domain=t.e2ma.net

_______________________________________________ Everybody mailing list -- everybody@acfr.usyd.edu.au To unsubscribe send an email to everybody-leave@acfr.usyd.edu.au