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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">K</span><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">öszi!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Emlékszem rájuk, beszélgettünk sokat arról, hogy lehet a sima counter-eknél profibb dolgokat beletenni a vswitch-be, még egy kicsit ajánlgattam nekik
az ERFS API-t is, ahol tudnak saját kódot betenni a pipeline-ba, és azt experimenter action-nel konfigolni, de aztán eddig már nem jutottunk el. Érdekes felvetés az, amit ír, szerintem a P4 extern az kb. épp jó is lenne nekik, bár nyilván meg kéne pontosabban
érteni, hogy mit csinálnának, pl. ha sok gépidőt igényel az algoritmusuk, akkor lehet, praktikus külön szálra tenni, és queue-kon keresztül kommunikálni, és/vagy sorsolni x% packet-et, és csak azokra meghívni az ő rutinjukat (de itt ugye vigyázni a reorder-re…)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Más: volt a Linaro Connect itt Budapesten (http://connect.linaro.org/), amire meghívtak előadni. Elsősorban a P4/ODP-n volt a fókusz (ez érdekelte
őket), de egyértelműen beemeltem a P4/DPDK eredményeket is, illetve tettem utalást a Freescale-es munkájára Petinek. Csatolom a prezit. Egyik hozzászólót (ha jól emlékszem, Freescale-es arc) különösen érdekelték a komplexebb use case-ek, olyannyira, hogy kérdezte,
lehet-e csatlakozni a projekthez. Említettem neki az EIT kezdeményezést. Többen mondták, hogy nagyon szívesen segítenek pl. a performance tuningolásban. Én meglepődtem, mennyire jó fogadtatása volt a prezinek, de persze majd meglátjuk, hogy az ígéretek tettekben
is realizálódnak-e.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">A héten akkor gyertek át, mert van mit megbeszélni.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Üdv,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">G.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="HU" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> Sándor Laki [mailto:lakis@elte.hu]
<br>
<b>Sent:</b> Wednesday, March 8, 2017 6:53 PM<br>
<b>To:</b> p4@plc.inf.elte.hu; Gergely Pongracz<br>
<b>Subject:</b> Fwd: EIT DI infrastructure and programmable networks<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>FYI<o:p></o:p></p>
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-------- Forwarded Message -------- <o:p></o:p></p>
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<p class="MsoNormal">EIT DI infrastructure and programmable networks<o:p></o:p></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b>Date: <o:p></o:p></b></p>
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<p class="MsoNormal">Wed, 8 Mar 2017 18:51:48 +0100<o:p></o:p></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b>From: <o:p></o:p></b></p>
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<p class="MsoNormal">Rebecca Steinert <a href="mailto:rebecca.steinert@ri.se"><rebecca.steinert@ri.se></a><o:p></o:p></p>
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<p class="MsoNormal"><a href="mailto:lakis@elte.hu">lakis@elte.hu</a><o:p></o:p></p>
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<br>
Dear Sándor, <o:p></o:p></p>
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<p class="MsoNormal">As indicated from the EIT Digital Infrastructure pre-call workshop, I would like to explore potential common interests in deeply programmable networks. <o:p></o:p></p>
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<p class="MsoNormal">The background is based on the FP7 UNIFY project (coordinated by Ericsson Hungary) and our results produced at SICS, oriented at using and aggregating data plane counters locally as input to low-complexity but sophisticated predictor models. <o:p></o:p></p>
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<p class="MsoNormal">One of the main challenges towards programmable networks is related to scalable monitoring or network observability. Current OF mechanisms and switches do not allow for local deployment of observability points (or monitoring processes)
which severely limits the granularity and usefulness of the monitoring information, among other things. Another challenge regards effective deployment mechanisms and implementation of observability capabilities in a switch with low processing overhead to avoid
bottlenecks caused by monitoring.<o:p></o:p></p>
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<p class="MsoNormal">So far we have developed the concept of observability points in terms of a light-weight low-complexity model for predicting persistent congestion episodes at buffer fill time, using only two data plane counters. The offer and interest in
a potential collaboration is to take this concept further into implementing relevant mechanisms needed for enabling and supporting observability of programmable networks by flexible deployment of monitoring mechanisms. Being able to define and deploy observability
points by the use of P4 and a compiler without modifying the switch kernel could be an interesting case and a step further.<o:p></o:p></p>
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<p class="MsoNormal">If this sounds interesting and relevant to the project you have in mind, let me know and we can setup a call (or meet at the EIT PE in Brussels).<o:p></o:p></p>
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<p class="MsoNormal">Best regards,<o:p></o:p></p>
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<p class="MsoNormal">rebste<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif"">—————————————————————<br>
Rebecca Steinert, PhD<br>
Head of the Network Intelligence group (NI)<br>
Decisions, Networks and Analytics lab (DNA) <br>
RISE SICS AB<br>
Kistagången 16, 164 51 Kista<br>
Phone: +46 70 7731571<br>
Skype: rebecca.steinert<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica","sans-serif"">E-mail:
<a href="mailto:rebecca.steinert@ri.se">rebecca.steinert@ri.se</a><br>
—————————————————————<o:p></o:p></span></p>
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