Introduction to NGN Bearer Network(Central and Remote Office Networking Solutions)

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    HUAWEI TECHNOLOGIES Co., Ltd.

    www.huawei.com

    HUAWEI Confdential

    Security Level:

    Introduction to NGNearer Networ!"Central#$emote O%ce

    Networ!in& Solution'ISSUE 3.0

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    This course provides an overview of the

    networking solutions for Huawei NGN earer

    network !central office and re"ote office# $

    focusing on the e%uip"ent selection and

    networking configuration of the central office

    networking. The central office is the core of the

    NGN earer network and has high securit$ and

    reliailit$ re%uire"ents on networking

    structure. The networking structures involved

    in this course are "ature solutions that have

    stood stringent selection and tests& and have

    een put into application.

    Preface

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    To know the central office networking of

    the NGN earer network

    To "aster the networking planning andopti"i'ation "ethods for the central office

    networking

    Objective

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    Segmented Structure of the NGN Bearer Network

    (asic structure) The end*to*end securit$ network is roken down to seg"ent*to*seg"ent

    la$ers.

    The entire network is seg"ented into the access la$er& ackone network&

    re"ote office and central office.

    !er termina"! +ccess network

    NGN

    ackone network

    #dge device

    ,+N

    ,+N

    Gatewa$ device!

    -e"ote office

    NGN core e%ui&ment

    entral office

    #dge device!

    +ccess la$er

    (ackone la$er

    Soft!witch

    #nter&ri!e'oaming u!er!

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    hapter / Networking -e%uire"ents of NGN on theha

    pter / Networking -e%uire"ents of NGN on the(ackone of the I (earer Network(ackone of the I (earer Network

    hapter 1 2eatures of I Interfaces of the NGN

    E%uip"ent

    hapter 3 entral ffice Networking

    hapter 4 -e"ote ffice Networking

    hapter 5 67 harging Networking

    hapter 8 7onitoring Networking

    )ontent!

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    +ua",P"ane Structure of the NGN -P Backbone

    It is reco""ended that the ackone of the NGN I earer network adopt a private network with the

    dual*plane structure. 9hen planning the network topolog$& design two planes sharing the active*

    stand$ relation. Each plane is an independent network and is connected to the other plane through

    connection links. In addition to the dual*plane design& deplo$ proper technical "easures& such as I

    2-- and interface ackup& to guarantee fast convergence of the network in case faults occur.

    +ccess network

    +ctive plane)

    Enaling :iffServ

    Enaling 7,S ;N

    Stand$ plane)Enaling :iffServ

    Enaling 7,S ;N

    7-

    Stand$ interface

    Internal plane connection

    +ctive interface(-

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    rivate network+edicated network)on!o"idated

    network/OS +iffServ

    en!ured

    Securit$ en!ured0a!t de&"o$ment1cce!! contro" over

    )1) ca""! cannot be

    achievedigh co!t

    I ;NPN,ba!edSecurit$ en!ured

    /OS +iffServen!ured1cce!! contro"

    over )1) ca""!

    cannot be achieved)an be de&"o$ed

    in the ei!ting

    network

    ITN solution

    5he o&tima"

    !o"utionSecurit$ en!ured1cce!! contro"

    over )1) ca""!

    I pulic network-P,ba!ed/OS +iffServ

    en!uredSecurit$ ri!k

    ei!t!0a!t de&"o$ment

    NGN Bearer Network 6ode"

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    -P PN 6ode"

    NGN ;N

    :iffserv) E2

    N7S ;N:iffserv)(E

    Internet ;N

    :iffserv)(E

    SS and (illing

    STN

    Soft

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    Ser+ice oS -ar!'

    Service ategor$ :iffServ H( C01./p 7ark TS 7ark 7,S E

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    +e!cri&tion of )ommon Networking 6ode!(continued)

    6edia interface! of the 6'S96)C 5he$ &rovide mu"ti&"e 0# "ink! ;in active9!tandb$ or "oad,

    !haring mode= to connect with ?3 and ?4 and are configured with the ''P mechani!m@

    6edia interface! of the 6GC 5he$ &rovide 0# or G# "ink! in active9!tandb$ mode to connect

    with two different router!@ ;5hi! configuration i! de!igned becau!e the traffic on the 6G i!

    heav$@=

    5hrough the d$namic routing configuration on the router! the router! connected to the media

    e%ui&ment !uch a! the 6G can be !witched over %uick"$@

    5he u&"ink "ink! or ?3 and ?4 are configured according to the actua" bandwidth re%uirement for

    networking@ #ach "ink i! configured with an inde&endent ?a$er 3 -P !egment addre!!@ 5he "ink!

    between ?3 and '< and between ?4 and '2 a"!o ado&t the OSP0 d$namic routing

    configuration@ 5he media interface! of each device can be !e&arated ba!ed on the ?1N!@

    'e%uirement for the media gatewa$ device! in the centra" officeC -t i! recommended that the!e

    device! u!e the inde&endent media &h$!ica" interface and !igna"ing &h$!ica" interface !o that

    the !igna"ing traffic and media traffic can be tran!mitted to ?1N ;

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