introduc)on*–*chris*develder*users.atlantis.ugent.be/cdvelder/papers/2015/develder...networking*for*big*data*applica)ons*...
TRANSCRIPT
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Introduc)on*–*Chris*Develder*
! PhD,%Ghent%University,%2003%• “Design%and%analysis%of%op
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Dimensioning*(op)cal)*networks*for*cloud*compu)ng*
Chris%Develder,%et(al.%%%Ghent%University%–%iMinds%Dept.%of%Informa
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Networking*for*big*data*applica)ons*
Op
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Networking*for*big*data*applica)ons*
Op
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Dimensioning*networks*for*mul)?site*Data*Centers*
Given:*! Cloud%service%requests%(bandwidth%+%server%capacity)%
! Network%topology%(w/%candidate%DC%loca
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Dimensioning*for*clouds:*What’s*different?*
C.(Develder,("Dimensioning((op:cal)(networks(for(cloud(compu:ng",(Invited(panelist(talk(at(ITC(27,(9(Sep.(2015(
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Anycast*
Users%do%(in%general)%NOT%care%where%applica
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Network*virtualiza)on*
Physical%network%is%logically%par
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Key*ques)ons?*
C.(Develder,("Dimensioning((op:cal)(networks(for(cloud(compu:ng",(Invited(panelist(talk(at(ITC(27,(9(Sep.(2015(
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Exploi)ng*anycast*to*minimize*capacity?*
1. Does%choice%of%anycast%algorithm%highly%impact%network%bandwidth%requirements?%
2. What%is%benefit%of%reloca
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! Impact%of%server%capacity%distribu/on:%(unif%vs%prop)%Smart,%nonQuniform%server%distribu
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(2)*Reloca)on*to*maximally*share*resources*
Intui
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-20%
-10%
+0%
+10%
+20%
+30%
+40%
+50%
0 100 200 300
Tota
l cos
t
Number of unit demands
NR, 1L
NR, 1LSN
RO, 1L
RO, 1LS
EU-basic, FD, K=3
Total cost relative to the NR, 1L
case
(2)*Reloca)on*to*maximally*share*resources*
Single%link%failures%(1L):%! Reduc
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(3)*Changing*routes*for*)me?varying*traffic*
Resilience%scenarios:%! Scenario*I:%Do%NOT%change%! Scenario*II:%May%change%backup%&%synchroniza
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Pattern #1, total Pattern #2, total
−6%
−4%
−2%
0%
−7.5%
−5.0%
−2.5%
0.0%
50 100 150 200 50 100 150 200Traffic volume
Rel
ative
cos
t diff
eren
ce
Scenario I(no changes)
Scenario II(change only backup and/or sync)
Scenario III(change working, backup and/or sync)
(3)*Changing*routes*for*)me?varying*traffic*
! Total%cost%savings%up%to%almost%8%%(pa^ern%#2,%i.e.,%more%mul
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Wrap?up*
! Cloud%compu
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?*
Thank*you*…*any*ques)ons?*
Chris%Develder%[email protected]%%Ghent%University%–%iMinds%%%
C.(Develder,("Dimensioning((op:cal)(networks(for(cloud(compu:ng",(Invited(panelist(talk(at(ITC(27,(9(Sep.(2015(