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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Announcement of Scheduled Maintenance – Internet Connection Interruption<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">When:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Thursday, July 10, 2025, from 18:30 to Friday, July 11, 01:30<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">What is happening?</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> SURF will be performing maintenance on network equipment at the Vrije Universiteit
(VU). First, one system (node) will be temporarily shut down to replace a dust filter. After that, the other system will be addressed. This will be done sequentially, ensuring that one system remains active at all times.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">What does this mean for you?</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> The internet connection for "edu-vpn" will be interrupted between
18:30 and 22:30. This means that users connected to the VU network via edu-vpn will temporarily not have access to internal systems or resources that are only accessible via VPN.<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Why this maintenance?</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> This is preventive maintenance to avoid future disruptions. SURF ensures
that everything is carried out carefully and that the impact is minimized.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Thank you for your understanding and cooperation.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">Thank you for your understanding and cooperation.<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">Van:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black"> Hengel, E.I.V. van den (Esther) <<a href="mailto:e.i.v.vanden.hengel@vu.nl">e.i.v.vanden.hengel@vu.nl</a>><br>
<b>Verzonden:</b> Wednesday, July 9, 2025 2:19:25 PM<br>
<b>Aan:</b> BETA Afdelingsmanagers <<a href="mailto:afdelingsmanagers.beta@vu.nl">afdelingsmanagers.beta@vu.nl</a>>; BETA FB <<a href="mailto:fb.beta@vu.nl">fb.beta@vu.nl</a>>; BETA Diensthoofden <<a href="mailto:diensthoofden.beta@vu.nl">diensthoofden.beta@vu.nl</a>><br>
<b>Onderwerp:</b> FW: Aankondiging gepland onderhoud – onderbreking internetverbinding</span>
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<p class="xmsonormal"><span lang="NL" style="font-family:"Aptos",sans-serif">Ter info.</span><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal"><span lang="NL" style="font-family:"Aptos",sans-serif"> </span><span lang="NL"><o:p></o:p></span></p>
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<p class="xmsonormal"><span lang="NL" style="font-family:"Aptos",sans-serif">Hartelijke groet,</span><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal"><span lang="NL" style="font-family:"Aptos",sans-serif">Esther</span><span lang="NL"><o:p></o:p></span></p>
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<p class="xmsonormal"><span lang="NL" style="font-family:"Aptos",sans-serif"> </span><span lang="NL"><o:p></o:p></span></p>
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<p class="xmsonormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> Overloop, L.D.J.M. van (Lesley) <<a href="mailto:l.d.j.m.van.overloop@vu.nl">l.d.j.m.van.overloop@vu.nl</a>>
<br>
<b>Sent:</b> Wednesday, 9 July 2025 11:42<br>
<b>Subject:</b> Aankondiging gepland onderhoud – onderbreking internetverbinding</span><span lang="NL"><o:p></o:p></span></p>
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<p class="xmsonormal"><span lang="NL"> <o:p></o:p></span></p>
<p class="xxmsonormal"><span lang="NL" style="font-size:11.0pt">Beste,</span><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><span lang="NL" style="font-size:11.0pt"><br>
Hieronder een aankondiging i.v.m. gepland onderhoud!<b><i><br>
<br>
Aankondiging gepland onderhoud – onderbreking internetverbinding</i></b></span><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><i><span lang="NL" style="font-size:11.0pt"> </span></i><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><b><i><span lang="NL" style="font-size:11.0pt">Wanneer:</span></i></b><i><span lang="NL" style="font-size:11.0pt"> Donderdag 10 juli 2025 van 18:30 tot vrij 11 juli 01:30</span></i><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><b><i><span lang="NL" style="font-size:11.0pt">Wat gebeurt er?</span></i></b><i><span lang="NL" style="font-size:11.0pt"><br>
SURF voert onderhoud uit aan netwerkapparatuur op de Vrije Universiteit (VU). Eerst wordt één systeem (node) tijdelijk uitgeschakeld voor vervanging van een stoffilter. Daarna wordt het andere systeem aangepakt. Dit gebeurt na elkaar, zodat er altijd één systeem
actief blijft.</span></i><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><b><i><span lang="NL" style="font-size:11.0pt">Wat betekent dit voor jullie?<br>
</span></i></b><i><span lang="NL" style="font-size:11.0pt">De internetverbinding, voor “edu-vpn" wordt onderbroken tussen 18:30 en 22:30 uur. Dit betekent dat de gebruikers die via edu-vpn verbonden zijn met het VU-netwerk tijdelijk geen toegang zullen hebben
tot interne systemen of bronnen die alleen via VPN bereikbaar zijn.</span></i><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><b><i><span lang="NL" style="font-size:11.0pt">Waarom dit onderhoud?</span></i></b><i><span lang="NL" style="font-size:11.0pt"><br>
Het gaat om preventief onderhoud om storingen in de toekomst te voorkomen. SURF zorgt ervoor dat alles zorgvuldig wordt uitgevoerd en de impact zo klein mogelijk blijft.</span></i><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><i><span lang="NL" style="font-size:11.0pt"> </span></i><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><i><span lang="NL" style="font-size:11.0pt">Bedankt voor jullie begrip en medewerking.</span></i><span lang="NL"><o:p></o:p></span></p>
<p class="xxmsonormal"><span lang="NL" style="font-size:11.0pt"> </span><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal"><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B">Groeten,</span><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal"><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B"><br>
Lesley van Overloop<br>
Relatiemanager IT – domein Onderzoek</span><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF">Informatietechnologie – Business Services</span><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B"><br>
<br>
<img border="0" width="214" height="40" style="width:2.2291in;height:.4166in" id="x_x_x_Picture_x0020_1" src="cid:image001.png@01DBF0C6.6A867870" alt="InformatieTechnologie"><br>
<br>
</span><b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF">|</span></b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B"> </span><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0563C1"><a href="mailto:l.d.j.m.van.overloop@vu.nl">l.d.j.m.van.overloop@vu.nl</a></span><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B"> </span><b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF">|</span></b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B"> WERKDAGEN:
ma – vr </span><b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF">|</span></b><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF">+31 6 80146394</span></b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B"><br>
POSTADRES: de Boelelaan 1085, 1081 HV Amsterdam </span><b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF">|</span></b><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal" style="background:white"><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B">BEZOEKADRES: Gebouw Transitorium, Van der Boechorststraat 1, 1081 BT Amsterdam
</span><b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF">|</span></b><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#5B5B5B"> </span><span lang="en-NL" style="font-size:7.5pt;font-family:"Arial",sans-serif;color:#0089CF"><a href="http://www.vu.nl/nl/over-de-vu/vu-website/e-mail-disclaimer/disclaimer-tekst-e-mail/index.asp"><span style="color:#0089CF">Disclaimer</span></a></span><span lang="NL"><o:p></o:p></span></p>
<p class="xmsonormal"><span lang="NL"> <o:p></o:p></span></p>
<p class="xxmsonormal"><span lang="NL"> <o:p></o:p></span></p>
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