CHT 3G RFI Proposal Chapter 5 : Core Network and Services Chapter 5.: !rchitect"re# Capacit$# F"nctionalit$#Inter %aces o% Core Network &le'ents Chapter 5..( Core )ptical Transport ___________________________________________________________ ________________________5.architect"re# Capacit$# %"nctionalit$ # Inter%aces o% Core Network &le'ents 5..( Core )ptical Transport 5..(.General For the 3G core transport network, Nortel Networks proposes products from it’s OPTera range. These products offer the most adanced features aaila!le and are widel" proen in oper ation arou nd the world. Norte l#s offer inclu des the OPT era $% optical la"er &'&( s"s tem, the OPTera (etro )*++ &'&( s"s tem and the (etr o &% soluti on for the -T/N. 'ith the tremendous demand in the 3G network !andwidth due to the fast growing traffic in wireless data, the !ack!one for 0%T 3G transport network should !e !uilt to handle these coming challenge. 'ith the wir ele ss dat a e1plos ion dri ing up 3G net wor k !andwi dth re2 uir ements and li!eraliation fuelling competition in national and international markets the optical la"er is fast !ecoming a m a4or area of 3G transport network deelopment. The optica l la"er is the latest weapon in the armor" of techni2ues to drie down the cost per ma naged !it in trans por t net wor ks. %owee r, the optimum distri !ut ion of net wor k functionalit" !etween the optical, &% and serice la"ers depends on the t"pe of demand, the transm ission distanc es and the netwo rk paramete rs inoled . 0onse2uent l" , the minimum cost per managed !it is o!tained with a dierse network architecture, which is tailored to suit the traffic demands and the network circumstances 5..(.( Introd"ction Getting such a wide recognition for our position in this tremendousl" growing market is an indication that we are 5 and intend to remain 5 at th e forefront of Optical 6nterne tworking. For the last 7 "ears, we hae also !een the leaders in 8+ G!9s s"stems, with :+; of the world’s market. &uring Telecom :: in Genea, we hae demonstrated a <+ G!9s s"stem ... taking the world closer to real and operational T(5*)= and T(58+*7 technologies. 'e would like to take this opportunit" to introduce our portfolio, and demonstrate the !readth of solutions that are aaila!le and which will ena!le new serice !uilding possi!ilities for our -(Tcustomers. Gien the current trends in the marketplace, and their natural situation, -(Toperators are prime candidates for an eolution towards the proision of alternatie serices, and therefore will re2uire a ersatile and powerful infrastructure, which Nortel Networks ows to proide. The progressie deelopment towards agnostic transmission on the optical la"er > with its implications for /T( and 6P networking > has to !e of particular interest to -(Toperators !ecause of their special needs toda" gien the architecture of the 0ore Network. Our carrier5 grad e data e2uipm ent > ? ersala r 6P route rs and Passport / T( switches as e1amp les > are readil" aaila!le with optical interfaces. Therefore these products, ke" to an -(Tcore network architecture, can !e directl" interconnected ia an optical la"er @ cloud A that !rings tog ether the streng th of !an dwidth managemen t, fle 1i! le rou te managem ent , and path diersit". This cloud has tradit ionna ll" consis ted of &% transmission infra structu reB howeer , the Commercia l in confidence Chapter : 5 Page: 1 Date: October ,28 2000
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
5..(. GeneralFor the 3G core transport network, Nortel Networks proposes products from it’s OPTerarange. These products offer the most adanced features aaila!le and are widel" proen inoperation around the world. Nortel#s offer includes the OPTera $% optical la"er &'&(s"stem, the OPTera (etro )*++ &'&( s"stem and the (etro &% solution for the-T/N.
'ith the tremendous demand in the 3G network !andwidth due to the fast growing traffic inwireless data, the !ack!one for 0%T 3G transport network should !e !uilt to handle thesecoming challenge.
'ith the wireless data e1plosion driing up 3G network !andwidth re2uirements andli!eraliation fuelling competition in national and international markets the optical la"er isfast !ecoming a ma4or area of 3G transport network deelopment.
The optical la"er is the latest weapon in the armor" of techni2ues to drie down the cost permanaged !it in transport networks. %oweer, the optimum distri!ution of networkfunctionalit" !etween the optical, &% and serice la"ers depends on the t"pe of demand, thetransmission distances and the network parameters inoled. 0onse2uentl", the minimumcost per managed !it is o!tained with a dierse network architecture, which is tailored to suitthe traffic demands and the network circumstances
5..(.( Introd"ction
Getting such a wide recognition for our position in this tremendousl" growing market is anindication that we are 5 and intend to remain 5 at the forefront of Optical 6nternetworking. Forthe last 7 "ears, we hae also !een the leaders in 8+ G!9s s"stems, with :+; of the world’smarket. &uring Telecom :: in Genea, we hae demonstrated a <+ G!9s s"stem ... taking theworld closer to real and operational T(5*)= and T(58+*7 technologies.
'e would like to take this opportunit" to introduce our portfolio, and demonstrate the !readthof solutions that are aaila!le and which will ena!le new serice !uilding possi!ilities for our-(T customers. Gien the current trends in the marketplace, and their natural situation,-(T operators are prime candidates for an eolution towards the proision of alternatieserices, and therefore will re2uire a ersatile and powerful infrastructure, which Nortel
Networks ows to proide.
The progressie deelopment towards agnostic transmission on the optical la"er > with itsimplications for /T( and 6P networking > has to !e of particular interest to -(T operators
!ecause of their special needs toda" gien the architecture of the 0ore Network. Our carrier5grade data e2uipment > ?ersalar 6P routers and Passport /T( switches as e1amples > arereadil" aaila!le with optical interfaces. Therefore these products, ke" to an -(T corenetwork architecture, can !e directl" interconnected ia an optical la"er @ cloud A that !ringstogether the strength of !andwidth management, fle1i!le route management, and pathdiersit".
This cloud has traditionnall" consisted of &% transmission infrastructureB howeer, the
continuous improement of Nortel’s &'&( portfolio is !ringing a new era of networking
capa!ilities, toda".
*
(
3
+
5
,
-
./ 0 F &SP1P I CH 21N& !.S S
GTS
3a'4daNet
5orldCo'
Carrier
Co'pletel
GTS
RS3Co'
R6C
Ca4ovisao
7a88Tel
SPT!
Retecal
C)3T
5orldCo'
C)3T
!"tostrade
5orldCo'
di!9
Carrier
5orldCo'
:o4istar
Castel
N!FIN5einstro'
.T!
5orldCo'
2anverket
;
<
*
(&"ro4ell
Glo4al )ne
NT3
Th"s
Norwe4
5orldCo'
&ner=is
C)3T
&S!T
Telewest
Co'cast
C5C
Figure 1 Partnering in Deregulation
5..(.3 )PTera H ,** 00 S$ste' Nortel Networks has the pleasure to present the OPTera $% 8=++ portfolio, a uni2ue openoptical platform which allows serice proiders to cost5effectiel" delier suria!le,managed 6P5oer5light serices using open optical interfaces and open &ense 'aelength&iision (ultiple1ing C&'&(D.
The ke" !enefits of the s"stem are E
• *.) or 8+ G!it9s &'&( !ack!one network for scala!le capacit" up to 8.= T!it9s per
fi!re• Protocol and !it5rate fle1i!ilit" C6P, /T(, &%9ONT, etc.D
• ach waelength has optical protection for ma1imum relia!ilit"
• 0oncentration capa!ilit" for lower5speed tri!utaries on to a 8+ G!it9s waelength for
minimum cost per !it
&esigned for competitie adantage, Nortel Networks’ OPTera $% offers new options toserice proiders looking for long5haul solutions that ena!le data serices in the most cost5effectie wa" > all while maintaining the 2ualit" of serice associated with more traditional
!ack!one topologies. The open optical interfaces on Nortel Networks’ OPTera $% proide ma1imum serice fle1i!ilit", and also pla" a ke" role inthe delier" of cost5effectie serices.
" ena!ling the transport of 6P, /T(, &%9ONT and other signal t"pes, serice proiders !enefit from a more efficient !it rate on their network !" ma1imising the potential capacit" of
Nortel Networks recognises the real world challenges for operators managing &'&(s"stems.The OPTera $% can !e managed !" Nortel Networks’ P6& solution andsupports management of the optical la"er as a natural e1tension of the e1isting managementstructures and operations.
Nortel Networks’ OPTera portfolio will change the wa" serice proiders create their futuredata5centric network. /nd with oer 3 million waelength miles deplo"ed with suria!le&'&(, Nortel Networks solutions are !acked !" real5world e1perience in open opticalglo!al long5haul deplo"ments.
The &'&( solution Nortel Networks’ OPTera portfolio relies on the (ulti5waelength Optical epeater C(ODPlus "stem and a 8=++G amplifier for efficient waelength deplo"ment and control. Nortel
Networks’(O famil" of amplifier products hae !een deplo"ed in more than *+ ma4ornetworks worldwide with a 8+ G!it9s platform proen technolog" serice proiders can rel"on.
OPTera $% features
• Open interfacesE OPTera $%’s open optical interfaces ena!le multiple serices C6P, /T(,
&%9 ONTD and multi5endor traffic to !e carried across the network.
• Open Optical Traffic /ggregationE The OPTera $% platform is uni2uel" a!le to
concentrate lower !it5rate traffic to 8+ G!it9s on each waelength, to a total per fi!re
capacit" of 8.= T!it9s, ma1imising the total traffic and minimising network cost.• 0apacit"E Nortel Networks open optical portfolio, OPTera, will alwa"s !e ahead of the
!andwidth cure. The (OH supports 3* waelengths of 8+ G!it9s each oer a singlefi!erB the OPTera 8=++G amplifier will delier 8=+ waelengths of 8+ G!it9s each for atotal oer a single fi!er of 8.= T!it9s of capacit". Furthermore, the 7E8 0om!iner of the $%allows to fit 7 T(58= channels onto a single 8+ G!it9s channel, ma1imising further the
!andwidth efficienc" of a single fi!er.
• cala!ilit"E OPTera $%, the leading5edge open optic long5haul platform, proides the
scala!ilit" that tomorrow’s data5centric networks demand. The a!ilit" to simpl" turn upwaelengths as needed, without downtime, allows unrestricted growth capa!ilit".
• Fle1i!ilit"E Nortel Networks’ OPTera $% proides a fle1i!le !ase to transport
multi5serice, multi5endor, and multi5data5rate traffic through the optical la"er. OPTera
$% is a glo!al platform with multiple on5ramps optimised for a range of serice needsCeg. open optical interfaces, Giga!it thernet interfaces with integrated $a"er *switching, integrated &%9ONT etc.D
• elia!ilit"E OPTera $% is designed to improe on the network relia!ilit" of e1isting data
infrastructures. %igh 2ualit" of serice will !e proided through protection channels andrapid automatic restoration, ensuring Ialwa"s on’ networks for data5intensieapplications.
• 0ost5effectienessE &epending on the long5haul network topolog" and the serices to !e
supported, Nortel Networks’ open or integrated optics solutions delier the lowest cost per managed !it, waelength or channel. The (OH supports single5fi!er transport with !i5directional waelengths transmission.
• (anagea!ilit"E The OPTera optical la"er is full" managed !" an e1tension of Nortel
Networks’ Preside to delier unified end5to5end seamlessintegration.
These elements come together to form a distri!uted -nified Network as depicted in Figure =.
Figure 4 - The Unified Network
Two further software elements delier the significant adantages of the OPTera Packet
olutionE
)PTera Network Control proides smart packet optical interworking capa!ilit" that deliers
d"namic route and !andwidth management. 6n the short term, /ON deliers networkoptimisation adice through anal"sis of the optical link capacities and presentation of issues
and recommended solutions to the operations team. This can !e e1tended with ON0 to
e1amine the packet network congestion parameters ia metrics such as router52ueue depth and
!andwidth5reseration5re2uests, and automaticall" reconfigure the routes on the optical la"er
to eliminate manual packet engineering tasks. Once confidence is gained in the ON0
capa!ilit", this can !e e1tended to proide real5time, full" d"namic control of optical
waelength connections !ased on actual traffic demands and rules defined !" the operator. /ll
of these ON0 capa!ilities delier real economic alue to the operator > more efficient use of
the optical la"er capacit", reduced operations costs, and the capa!ilit" to tune the network for
(P$ allows the OPTera Packet 0ore to internall" maintain a distinction !etween arious
serices, "et handle all packets and frames identicall". (P$ traffic engineering also allows
serice proiders to resere !andwidth specificall" for high5priorit" traffic,and improes upon
the shortest5hop routing of natie 6P.
Nortel Networks is a leader in the deelopment of (ulti5Protocol $a!el witching, and the
OPTera Packet
olution emplo"s the industr"’s leading (P$ capa!ilities to achiee network consolidation.
Sea'less Scala4ilit$ to H"ndreds o% Tera4its Creates ! ess Costl$ Internet
eeping up with traffic growth is the num!er one pro!lem faced !" national 6nternet
serice proiders and glo!al serice proiders. The primar" !ottleneck is IOld 'orld’
routers, which do not support high5speed optical interfaces Ce.g., T(5=7D, and hae
difficult" operating a!oe 8++ giga!its5per5second CG!it9sD of non5!locking
throughput. The OPTera Packet olution eliminates these pro!lems !" proiding a
seamless and cost5effectie migration path from giga!it capacit" to hundreds of tera!its.
erice proiders can scale their 6P networks !" purchasing a single router toda" and then
integrate that router, as well as multiple others, with the OPTera Packet 0ore into a singlelogical router. The OPTera Packet 0ore architecture allows serice proiders to scale their
networks to hundreds of tera!its of non5!locking throughput.
The OPTera Packet 0ore COP0D is a new, highl" scala!le la!el switch router designed around
a new reolutionar" switching fa!ric. 6t has !een specificall" designed as a carrier grade
product, !eing e1tremel" relia!le, self5healing, and non5!locking. The first configuration of
the OP0 will proide from *++G!it9s to 7.<T!it9s user !andwidth, with future releases
offering !andwidth up to 8++’s of T!it9s.
The OPTera Packet 0ore uses (P$ to unif" the carriage of 6P, /T(, F, and T&( traffic. 6tsupports rich and sophisticated Ko mechanisms, such as classification, policing, congestion
management, and scheduling. &ue to its low latenc" and an effectie
dela" ariance of ero, the OPTera Packet 0ore can handle the strict
re2uirements of real5time traffic such as oice and ideo.
One of the ke" design o!4ecties !ehind the OPTera Packet 0ore is the
delier" of carrier grade 6P network serices. The OP0 counters the