Intro and Motivation 2011-V1

8/10/2019 Intro and Motivation 2011-V1

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TTM 1: Access and core networks,advanced:

Optical access and transport

networks

Info and IntroAutumn 2011


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Info overview Tutors:

! Ad"unct assoc# professor $teinar %"&rnstad

! '(#)# student *aimena +eisslari

! Associate professor orvald $tol

! -uest lectures: .arla *affaelli and /alter .erroni univ# %olona

! T(e students

'resentations, write name and e3mail on list! /(at is t(e area of 4our pro"ect work5

236 ke4words are sufficient

! /(at do 4ou know a7out optical networks5

/orkin met(ods in collo8uiums ##discuss##

.urriculum overview

Tentative sc(edule


3/16

9orm of lectures

%ased on collo8uium form:

!$ome material is presented 74 $teinar, orvald,

*aimena and uests

!$ome material is presented 74 students ## an4

volunteers5

!opefull4 we all learn somet(in ;

Oranised as t(ree (our seminars inArt(ur, IT


4/16


5/16

T(eme overview

.ourse Info = Intro ! 1 (our $teinar

Optical components > transmission ! 2 (ours $teinar .ore = Metro networks, Optical circuit switc(in O.$,

*aimena

.ontrol and Traffic manaement 3 6 (ours *affelli>.erroni

'rotection switc(in 3 6 (ours orvald, $andes(>ai"iao

Optical Transport etwork OT ! 6 (ours $teinar

Access networks 3 6 (ours $teinar>students

Optical 7urst > packet switc(in O%$>O'$ 3 6 (oursorvald, Trond>itu

*epetition ! -reatest (its, $teinar>orvald>*aimena Total: 21 (ours ? repetition


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Tentative sc(edule

See web-pages


7/16

.urriculum > Info > .ontacts

.urriculum:.onference papers and @ournal articlesMostl4 read4, some to 7e decided

Info on we7:(ttp:>>www#ntnu#no>telematikk>academics>courses>ttm1>start

$teinar#%"ornstaditem#ntnu#no, *oom%21B!Tlf: C00D1066

!orvald $tol

!*aimena +eisslari


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Intro overview

-rowt( rates

/avelent( division multipleEin /)M

Optical switc(in

3 circuit>wavelent(

3 packet

$ome facts>o7servations


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Internet rowt(

Moores law .'F! )ou7le performance ever4 1D mont(s, from 1CGH3

.omputer performance! )ou7les ever4 21 mont(s

*outer performance! )ou7les ever4 21 mont(s

Optical link performance! /)M ave a period wit( cost reduction of two ever4

12 mont(s

Internet traffic trends

-rowt( trends Internet versus telep(one


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Internet traffic trends

1

1 'rediction made in 2000J 7elieve t(e last 4ears (ave not 7een t(at fast

/(at do 4ou t(ink will make t(e traffic row in t(e future5


11/16

Kink capacit4 rowt( trend


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.apacit4 increase in s4stems

9i7er 7ased transport>core networks

$witc(in of (i( 7itrates, -7>s and T7>s

0.01

0.1

1

10

100

1000

10000

100000

1980 1985 1990 1995 2000 2005Year

Sin

le

fiberca

acit

Gb

/s

2x per year

Kilde:

+erdensrekord

i la7oratorium 10,C2 T7>s L

Introduction of /avelent( )ivision MultipleEin /)M

/orld record in la7:

2002

.urrentl4 62 T7>s

O.9 200C


13/16

/avelent( division multipleEin

Kare capacit4 increase in optical fi7ers

Makes optical networkin possi7le>interrestin


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Optical switc(es

.ircuit switc(in

! $witc(es sinals 7etween fi7ers and>or wavelent(s#

/avelent( conversion

! To avoid collision on wavelent(s in same fi7er

Optisk krysskopler

%&lelende

onverter

I1

I2

I6

IB

F1

F2

F6

FB/avelent(

converter

Optical crossconnect


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'acket switc(in More complicated in t(e optical domain:

! i(er speeds needed in switc(es

!ot currentl4 availa7le tec(nolo4 for optical processinof (eaders etc#

! T(e pa4load information is switc(ed opticall4

! Optical 7ufferin is difficult

ON. .ontroller

ode .ontroller e##, M'K$

Delay


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$ome ke4 facts

Optical switc(in:!Optical circuit switc(es are availa7le

$witc(es fi7ers or wavelent(s in fi7ers

Optical wavelent( converters are not commerciall4widel4 availa7le

Optical packet switc(es in la7s

Optical 7uffers>memor4 is a pro7lem

*apid development in optical transmission:!$4stems wit( more t(an 1 T7>s are availa7le

!i(er t(an 60 T7>s is demonstrated in t(e la7

Documents

Intro and Motivation 2011-V1