net trends kofman
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Some main trends in networkingSome main trends in networking
and related open problemsand related open problemsProf. Daniel Kofman
ENST-Telecom Paris
TAU, Israel, 2004
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Content
eneral conte!t
Core area net"or#s
$i! an% mo&ile access, an% sensor net"or#s
Traffic en'ineerin'
E(ro-NI )resentation
*)en %isc(ssions
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Internet, +istorical )ers)ectie
$irst 'eneration, &efore 2 Research network
Telnet, Email, File Transfer
Low traffic, low number of users
Secon% 'eneration , t+e /0s
Commercial services, ISPs
Web and basic eer!to!eer
Traffic and number of networks e"losion
#ainl$ %est Effort aroach and simle en&ineerin& rules ain iss(e1 ca)acit 3net"or# an% a%%ressin'
T+ir% 'eneration, from no" on
Services evolution and conver&ence Tri)le )la 3Internet5Telecom5e%ia coner'ence
'etwork and services ubi(uit$, ambient intelli&ence
'ew networkin& architectures are re(uired
'ew en&ineerin& rules are necessar$
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To"ar%s IP (ltiserice Net"or#s
INFRASTRUCTURE
IP covers the
Technology
diversity
SERVICES
VoIP
MmediaoIPWeb
P2P
Support of all
services over IP
IP
Grid
Triple
play
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An serice, an time, eer"+ere
/et-ork 0perator
Customer
Premises
Access /et-ork
0&&ered %ervices
Create /e- %ervice
01
Contracted
%ervices $odi&. %ervice
*ackbone
IP centre!
Dist. office
Customer
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E!am)les of Internet eol(tions
$rom a %ata net"or# to"ar%s a m(ltiserice-m(ltime%ia net"or#
$rom (nicast to m(lticast
T+e (sa'e of ne" lo"er laer tec+nolo'ies 3IP5AT, IP5S*NET, IP5D7D, etc.
$rom le'ac %ial-() to ADS8, 9$C, 788, 7i-$i, $TT!, P8C, satellites, etc.
$rom fi! to mo&ile net"or#
$rom isolation to"ar%s serice inte'ration "it+, for e!am)le, t+e tele)+onnet"or#1 NN arc+itect(res
To"ar%s t+e )roisionin' of telecomm(nication serices for )riate com)anies1 IP:PNs
$rom soft"are &ase% to +ar%"are &ase% ro(ters arc+itect(res 3i'a5Tera ro(ters,
flo" &ase% ro(ters, etc. A er fast eol(tion of t+e str(ct(re of t+e traffic re;(irin' ne" traffic
en'ineerin' a))roac+es
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T+e
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*erla Net"or#s
23$
%34
56
57
58
)P
AT$
C8
C6
C7
C9
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Increasin' Ca)acit for IP trans)ort,*)tion I1 IP oer AT
CustomerPremises
5
5
5
)P
AT$
%34
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Increasin' Ca)acit for IP trans)ort,*)tion II1 IP oer S*NET 3SD9
CustomerPremises
5
5
5
)P
%34
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Increasin' Ca)acit for IP trans)ort,*)tion III1 P8S
Customer
Premises
+%5
+%5
+%5
$P+%
%34
oher
...
1880
...
18 54
LSR LSR
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S"itc+in' Ca)acit, not an iss(e anmore, &(t P8S still nee%e%
Customer
Premises
+%5
+%5
+%5
$P+%
%34
:;;A. o%ellin', (antitatie et+o%san% eas(rements
IP traffic c+aracteri6ation, meas(rements an%statistical met+o%s
Dnamics of net"or#s (n%er ne" traffic
)ara%i'msS)atial net"or# mo%ellin' an% stoc+astic
'eometr
Net"or#s o)timi6ation an% control
N(merical an% analtic met+o%olo'ies
G>A H Socio Economic As)ects
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G>A.H Socio-Economic As)ects
(alit of Serice from t+e (sers )ers)ectiean% fee%-&ac# mec+anisms for ;(alit control
Pament an% cost mo%els for Ne!t enerationInternet
Sec(rit S)rea%in' of e!cellence
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Content
eneral conte!t
Core area net"or#s
$i! an% mo&ile access, a%-+oc an% sensor
net"or#sTraffic en'ineerin'
Serices oerlas
E(ro-NI )resentation*)en %isc(ssions