<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">I tell everyone we had SDNs in the 90s.<div class=""><br class=""></div><div class="">But we called it “expect scripts”.</div><div class=""><br class=""></div><div class="">:-)</div><div class=""><br class=""><div class="">
-- <br class="">TTFN,<br class="">patrick
</div>
<div><br class=""></div><div><br class=""><blockquote type="cite" class=""><div class="">On Dec 4, 2019, at 9:41 PM, Jennifer Rexford <<a href="mailto:jrex@cs.princeton.edu" class="">jrex@cs.princeton.edu</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=utf-8" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">SDN is definitely an overloaded and confusing term that is used inconsistently. Here are a few attempts to explain:<div class=""><br class=""><div class="">- “The Road to SDN: An Intellectual History of Programmable Networks” (ACM Queue, December 2013)</div><div class=""> <a href="https://queue.acm.org/detail.cfm?id=2560327" class="">https://queue.acm.org/detail.cfm?id=2560327</a></div><div class=""><br class=""></div><div class="">- “Abstractions for Software-Defined Networks” (CACM, October 2014)</div><div class=""> <a href="http://www.cs.cornell.edu/~jnfoster/papers/sdn-abstractions.pdf" class="">http://www.cs.cornell.edu/~jnfoster/papers/sdn-abstractions.pdf</a></div><div class=""><br class=""></div><div class="">- “From Ethane to SDN and Beyond” (ACM SIGCOMM CCR, October 2019)</div><div class=""> <a href="https://ccronline.sigcomm.org/wp-content/uploads/2019/10/acmdl19-347.pdf" class="">https://ccronline.sigcomm.org/wp-content/uploads/2019/10/acmdl19-347.pdf</a></div><div class=""><br class=""></div><div class="">— Jen</div><div class=""><br class=""></div><div class=""><div class=""><br class=""><blockquote type="cite" class=""><div class="">On Dec 4, 2019, at 12:56 PM, Rod Beck <<a href="mailto:rod.beck@unitedcablecompany.com" class="">rod.beck@unitedcablecompany.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class="">Can someone explain what is all the fuss? SDN is like the latest telecom craze but the articles do a poor job of explaining the advantages. I seek concrete examples.<span class="Apple-converted-space"> </span><br class=""></div><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><br class=""></div><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class="">Regards,<span class="Apple-converted-space"> </span><br class=""></div><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><br class=""></div><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class="">Roderick.<span class="Apple-converted-space"> </span><br class=""></div><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><br class=""></div><div style="font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt;" class=""><br class=""></div><div id="Signature" style="caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: 24px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><div class=""></div><div id="divtagdefaultwrapper" dir="ltr" style="font-size: 12pt; background-color: rgb(255, 255, 255); font-family: Calibri, Arial, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols;" class=""><div style="margin-top: 0px; margin-bottom: 0px;" class="">Roderick Beck</div>VP of Business Development<div style="margin-top: 0px; margin-bottom: 0px;" class="">United Cable Company</div><p style="margin-top: 0px; margin-bottom: 0px;" class=""></p><a href="http://www.unitedcablecompany.com/" class="OWAAutoLink">www.unitedcablecompany.com</a><p style="margin-top: 0px; margin-bottom: 0px;" class=""></p><div style="margin-top: 0px; margin-bottom: 0px;" class="">New York City & Budapest<br class=""></div><div style="margin-top: 0px; margin-bottom: 0px;" class=""><a href="mailto:rod.beck@unitedcablecompany.com" class="">rod.beck@unitedcablecompany.com</a></div><div style="margin-top: 0px; margin-bottom: 0px;" class="">36-70-605-5144</div></div></div></div></blockquote></div><br class=""></div></div></div></div></blockquote></div><br class=""></div></body></html>