TRNG I HC KHOA HC HUKHOA IN T - VIN THNG------

BO COTHC TP TT NGHIP

TI: TM HIU MNG MAN-E V NG DNG DCH V TI VNPT THA THIN HU

Sinh vin thuwch hi : L Phc Thanh Tn Lp : T-VK 34 Gio vin hng dn : ng Xun Vinh

Hu 02/2015LI M U

Ngnh bu in l mt ngnh c vai tr quan trng trong kt cu h tng c s ca nn kinh t quc dn, n ang c pht trin mnh m da trn nhng thnh tu ca cng ngh in t, bn dn, quang hc v cng ngh thng tin...Vo nhng nm 1960 xut hin nhng h thng thng tin ch l nhng tng i c in vi h thng rt cng knh, dn dn c thay th bng nhng tng i in t vi rt nhiu tnh nng u vit cho php m rng dung lng thu bao v thit lp dch v cho mng. Tng i SPC l mt trong nhng tng i u tin s dng nc ta. N c a vo s dng trn mng Vin thng Vit Nam u nhng nm 1970.Song vi thi k i mi v pht trin kinh t ca nc ta, vi nhu cu trao i thng tin nhanh chng v chnh xc ngy cng tr nn v cng quan trng. Nm bt c nhu cu ny, trong nhng nm gn y ngnh bu in c nhng bc pht trin ng k.V th tng i in t s 1000E10MM c a vo s dng trn mng Vit Nam. p ng nhu cu ngy cng cao ca khch hng v s pht trin ca mng vin thng, tng i lun lun c cng c, nng cp, pht trin bng vic p dng cc thnh tu ca cng ngh vi x l v tin hc. Trong thi gian thc tp em xin chn thnh cm n anh Nguyn L Hu Qun v cc anh ch trong t chuyn mch knh v chuyn mch IP thuc trung tm Chuyn Mch Truyn Dn tn tnh hng dn v to iu kin thun li gip em trong qu trnh thc hin bi bo co ny. Tuy nhin, do hn ch v thi gian v trnh kinh nghim thc t cho nn bi bo co ny khng sao trnh khi nhng thiu st v ni dung v hnh thc. Knh mong c s gp ca cc thy c trong khoa in t - vin thng cng ton th cc bn. Em xin chn thnh cm n !!!

Phn I: GII THIU V N V THC TPVNPT Tha Thin Hu l mt n v thnh vin ca Tp on Bu chnh Vin thng Vit Nam (VNPT), l nh cung cp dch v vin thng - cng ngh thng tin hng u trn a bn tnh TT-Hu.M hnh t chc:

T chuyn mch knh v chuyn mch IP (b phn trc tip hng dn thc tp) trc thuc Trung tm Chuyn mch Truyn dn, l n v c Vin thng Tnh giao ph nhim v qun l, vn hnh v khai thc mng trc truyn dn, mng trc MANE, mng truy nhp bng rng v cc dch v gi tr gia tng khc.

1.1. Tng quan mng Vin Thng VNPT Tha Thin Hu:Vi a hnh kh a dng c c nng thn, trung du, min bin v min ni, mng vin thng tnh Tha Thin Hu cng v th m rt a dng v phc tp. Trong nhng nm gn y tc th ho din ra kh rm r v rng khp t nhng nh qun l mng vin thng ng trc nhng kh khn nht nh l vic d bo, qui hoch mng sao cho hp l v khoa hc nht.Do nhn nh t rt sm v tnh hnh pht trin dch v vin thng trn a bn tnh trong tng lai l rt ln nn lnh o Vin Thng tnh vch ra c chin lc pht trin mng t nhng nm u khi chuyn t tng i c in sang tng i in t s. Vic u t lp t tng i c dung lng ln, nng lc phc v tt v p ng nhiu loi hnh dch v c th c xem l mt thnh cng. Cho n nay mng chuyn mch trn a bn thnh ph kh ng b v hot ng n nh vi dung lng my hin c trn mng vo khong 117 ngn thu bao. Nhng x vng ni v trung du, min bin c lp t cc thit b truy nhp thu bao CSN,CNE, RLU, V5.2 kt ni v trung tm bng cc phng thc truyn dn cp quang hoc viba m bo thng tin lin lc cho ngi dn d ni xa thnh ph nht, a hnh him tr.1.2. Nhng thun li v thch thc: Tnh Tha Thin Hu c y iu kin tr thnh trung tm du lch ca c nc, phn u tr thnh Thnh ph Festival, v kinh t cng ang phn u tr thnh 1 thnh ph kinh t mnh min Trung. VNPT Tha Thin Hu ang ng trc 1 c hi ln vi t cch l nh cung cp dch v Vin Thng hng u tnh nh. Trong nhng nm gn y khi tin n hi nhp kinh t quc t nhu cu thng tin lin lc tht s bng n, mng Vin Thng TT-Hu ngy cng thay i v pht trin nhanh chng cho ph hp vi nhu cu thc t. Vi nhng n lc ca ngnh, nhng cn b cng nhn vin l ng ghi nhn, tuy nhin vi c ch m c nhiu nh cung cp dch v c mt trn th trng cng l 1 thch thc khng nh. Lm sao gi c th phn, gi chn c khch hng l c 1 chin lc ln, trong vic lm sao cung cp dch v tt m bo thng tin lin lc, nng cao cht lng mng li nht l nhu cu cht lng dch v thoi, truyn s liu v cc dch v gi tr gia tng l rt quan trng. lm c iu khng nhng mang tnh ch quan ca con ngi m cn cn phi c cc thit b p ng tt nht cc yu cu ca ngi s dng l yu cu quan trng nht.

Phn II: Kin trc mng NGN v M hnh trin khai mng MAN-E ti VNPT.2.0. Gii thiu v kin trc mng hi t VNPT.

Hnh 2.0: Kin trc mng hi t NGN ca VNPTHnh 2.1: Kin trc mng NGN-MP2 ca VNPT

Hnh 2.2: Kin trc mng Truy nhp VNPT.2.1. Gii thiu v tng quang v mng MAN-E do VNPT pht trin.Ngy nay, yu cu v bang thng kt ni n cc thit b truy nhp (IPDSLAMP, MSAN) ngy cng cao, yu cu c s h tng mng truyn ti phi p ng cng ngh mi ca IP sn sng p ng cc dch v mi ngy cng tang: multicast, endtoend QoS, Bandwith-on-demandyu cu p ng bang thng trc tip theo nhu cu ca khch hng (FE, GE), v cc yu cu khc.Tc c yu cu trn dn n s bng n mng MAN trong cc thnh ph, c bit l mng Ethernet-Based MAN truyn ti lu lng IP.M hnh trin khai h thng mng ca VNPT bao gm cc cng ty truyn ti (VTN, VTI), cc cng ty cung cp dch v (VDC, VASC) v cc cng ty cung cp kt ni n khch hng (cc cng ty vin thn tnh, thnh). H thng mng MAN-E c trin khai ti cc cng ty vin thng tnh, thnh ph nhm cung cp cc kt ni n khch hng.Mng MAN-E l phn khc nm gia lp Core v lp Access, c chc nng gom thu lu lng v m bo v cht lng dch v cho khch hng. Mng MAN-E chnh l yu t ct li cc nh cung cp dch v trin khai cung cp dch v bng rng cht lng cao n vi khch hng. Ti Vit Nam, m hnh mng MAN-E c tp on Bu Chnh Vin Thng Vit Nam VNPT trin khai v a vo khai thc kh thnh cng. Tp on VNPT pht trin mng MAN-E da vo cc c tnh sau: Hiu qu chi ph: Chi ph u t v vn hnh thp. n gin: c tiu chun ha v khng ngng pht trin. c ng dng rng ri trong cc t chc danh nghip v khch hng. linh ng cao: Qun l bng thng v m rng bng thng kt ni rt d dng. H tr rt nhiu m hnh kt ni (topology) khc nhau. Ti u vic truyn ti thng tin dng gi, c bit l cc gi tin IP. 2.1-Nguyn tc cu trc mng Man-E VNPT:Mng MAN c t chc thnh 2 lp: Lp trc (ring core) Lp truy nhp (Access)

Hnh 2.1: Cu trc mng MAN-E in hnh

2.1.1. Lp trc (Ring core):Lp trc (ring core): Bao gm cc CES c ln lp t ti cc trung tm ln nht ca tnh, vi s lng hn ch (ti a t 2 n 3 im), v tr lp t cc CES core ti im thu gom truyn dn v dung lng chung chuyn qua cao. Cc thit b ny c kt ni ring vi nhau bng mt i si cp quang trc tip, s dng giao din kt ni Ethernet cng 1Gbps hoc 10Gbps. m bo mng hot ng n nh cao, kt ni t mng MEN ti mng trc IP/MPLS NGN s thng qua 2 thit b core CES ca mng MEN ( d phng v phn ti lu lng), kt ni nh sau: Ti tnh, thnh ph chc nng BRAS v PE tch hp trn cng mt thit b th mi thit b core CES s kt ni ti BRAS/PE. Ti tnh, thnh ph chc nng BRAS v PE c tch ring th thit b core CES s c 2 kt ni s dng giao din Ethernet, trong mt kt ni ti BRAS ( cung cp dch v truy nhp Internet tc cao), mt kt ni ti PE ( cung cp cc dch v khc, nh: thoi, Multimedia (VoD, IP/TV, IP conferencing). 2.1.2. Lp truy nhp (Access)Lp truy nhp MEN (access): Bao gm cc CES lp t ti cc trm Vin thng, kt ni vi nhau v kt ni ti ring core bng mt i cp quang trc tip. Ty theo iukin, lp truy nhp c th s dng kt ni dng hnh sao, ring (trong mt ring ti a t 4 - 6 thit b CES), hoc u ni tip nhau (ti a u ni tip t 4 - 6 thit b CES), vtr lp t cc CES truy nhp thng t ti cc im thun tin cho vic thu gom truyn dn kt ni n cc thit b truy nhp (nh MSAN/IP-DSLAM).Cc thit b truy nhp (MSAN, IP DSLAM) dng giao din Ethernet (FE/GE) s c kt ni n cc thit b mng truy nhp MAN E (CES) chuyn ti lu lng trongtnh, thnh ph v chuyn lu lng ln lp trn.Thit b MEN c th cung cp cc kt ni FE/GE trc tip ti khch hng. S dng thit b MSAN + cp quang nhm rt ngn khong cch cp ng dng cho cc khu vc c nhu cu cung cp dch v thoi, kt hp cc dch v bng rng. Trong trng hp cung cp dch v thoi s kt ni vi cc tng i Host hin c bng giao din V5.2. m bo an ton cho phn lp truy nhp th cc vng ring access hoc cc kt ni star c kt ni ti 2 node core.

Hnh 2.2: Cu hnh mc tiu mng MAN-ECc thit b thu gom lu lng trong mng MAN gi l CES, c kt ni vi nhau bng i si quang trc tip. Vi dung lng yu cu t 2 kt ni 10 Gbps tr ln th cc thit b CES ny s kt ni vi nhau qua thit b truyn dn C/DWDM ghp bc sng. Vi dung lng yu cu t 2.5 Gbps tr ln s dng kt ni 10 Gbps gia cc thit b , nu >2 Gbps v < 2.5 Gbps th dng 2 Gbps. Cu hnh mng: Cc CES c th kt ni vi nhau theo dng hnh sao, chui, ring hoc ring kt hp vi cc tuyn nhnh. Cp quang s dng trn mng MEN: Loi n mode tun th TCN 68-160: 1996 v ITU T (G.652).Cc thit b truy nhp nh MSAN, IP DSLAM dng giao din Ethernet (FE/GE) qua giao tip quang c kt ni vi nhau v kt ni n cc thit b CES mng truy nhp ca mng MEN chuyn ti lu lng. i vi thit b mng truy nhp: Cc thit b MSAN/IPDSLAM s kt ni trc tip n thit b CES ca MEN hoc h thng NG-SDH v s dng nng lc mng MEN hoc mng truyn dn NG-SDH chuyn ti lu lng gia mng IP/MPLS backbone vi cc thit b truy nhp MSAN/IP-DSLAM. S dng thit b MSAN v cp quang nhm rt ngn khong cch cp ng dng cho cc khu vc c nhu cu cung cp dch v thoi, kt hp cc dch v bng rng. Trong trng hp cung cp dch v thoi s kt ni vi cc tng i HOST hin c bng giao din V5.2.

Hnh 2.3: Mng cp quang kt ni gia cc node truy nhpCn c theo tnh trng mng li, nhu cu lp mi, m rng dung lng v bng thng cc im truy nhp bng rng IPDSLAM, MSAN, MxU, SwitchL2 trn a bn. Vin thng Tha Thin Hu m rng bng thng 6 vng ring access v 1 vng ring core ln 10GE. Cc kt ni n BRAS ln 10GE.Mng truyn dn MAN-E c t chc thnh 8 vng ring bao gm 7 vng ring access v 1 vng ring core. 7 vng ring access bao gm 20 UPE.1 vng ring core s sng 3 core. Cc vng ring c th nh sau: Bch Yn-Vinh Thanh-Hu-Bch Yn. Bch yn-Ph Tn-Hng Thy-Hu-Bch Yn. Bch Yn-V D-Xun Ph-Hu. Bch Yn-Nam Giao-Hu-Hu-Bch Yn. Bch Yn-Ty Lc-ng Ba-Hu-Bch Yn. Vinh Thanh-Vinh Thanh-Vinh Giang-Chn My-Ph Lc-La Sn-Hu-Vinh Thanh. Hue Bnh in Botdo Hue. Bch Yn-Bch Yn-Phong in-in Ha-BaiDau-Hu-Bch Yn.

Hnh 2.4: Topo mng MAN-E Vin Thng Tha Thin Hu - VNPT

Hnh 2.5: Topo mng truy nhp Vin Thng Tha Thin Hu2.2 Cc dch v cung cp qua MAN-E. 2.2.1. M hnh dch v Ethernet. xc nh cc loi hnh dch v cung cp qua mi trng Ethernet, trc ht cn xem xt m hnh tng qut. M hnh dch v Ethernet l m hnh chung cho cc dch v Ethernet, c xy dng trn da trn c s s dng cc thit b khch hng truy cp cc dch v. Trong m hnh ny s nh ngha cc thnh phn c bn cu thnh dch v cng nh mt s c tnh c bn cho mi loi hnh dch v. Nhn chung cc dch v Ethernet u c chung mt s c im, tuy nhin vn c mt s c tnh c trng khc nhau cho tng dch v ring. M hnh c bn cho cc dch v Ethernet Metro nh ch ra trn Hnh 2.1 Hnh 2.6: M hnh cung cp cc dch v Ethernet qua MAN-ETrong m hnh ny ch yu cp n cc kt ni mng m trong thu bao c xem l mt pha ca kt ni khi trnh by v cc ng dng thu bao. Tuy nhin cng c th c nhiu thu bao (UNI) kt ni n MAN t cng mt v tr. Trn c s cc dch v chung c xc nh trong m hnh, nh cung cp dch v c th trin khai cc dch v c th tu theo nhu cu khch hng. Nhng dch v ny c th c truyn qua cc mi trng v cc giao thc khc nhau trong MAN nh SONET, DWDM, MPLS, GFP, .... Tuy nhin, xt t gc khch hng th cc kt ni mng xut pht t pha khch hng ca giao din UNI l cc kt ni Ethernet. 2.2.2. Cc loi dch v Ethernet Hin ti cc dch v Ethernet c chia thnh 2 loi ln: Cc ng Ethernet ring, chy trn h tng SONET/SDH hoc trn LAN trong sut qua cc chuyn mch (best-effort) v si quang hin cha s dng. 2.2.2.1. Dch v ng Ethernet Dch v ng Ethernet cung cp kt ni o Ethernet im - im (EVC) gia hai UNI nh minh ho trn Hnh 2.7. Dch v E -Line c s dng cho kt ni im - im. Hnh 2.7. Kt ni o Ethernet im - im (EVC) qua MAN.Dch v E-Line c th cung cp bng tn i xng cho truyn s liu theo hai hng. dng phc tp hn n c th to ra tc thng tin tt nht (CIR) v kch thc khi tt nht (CBS), tc thng tin nh v kch thc khi nh tr, jitter, mt mt thc hin gia hai UNI c tc khc nhau. Nhn chung dch v E-Line c th c s dng xy dng cc dch v tng t cho chuyn tip khung hoc cc ng thu ring. Tuy nhin, di bng tn v cc kh nng kt ni ca n ln hn nhiu. 2.2.2.2. Dch v LAN Ethernet: Dch v LAN Ethernet cung cp cc kt ni a im, chng hn c th kt ni mt s UNI vi nhau nh ch ra Hnh 2.8

Hnh 2.8: M hnh kt ni a im

S liu thu bao gi t mt UNI c th c nhn ti mt hoc nhiu UNI khc. Mi UNI c kt ni n mt EVC a im. Khi c cc UNI thm vo, chng c kt ni n cng EVC a im do n gin ho qu trnh cung cp v kch hot dch v. 2.2.2.3. Dch v E-LAN theo cu hnh im - im. Dch v E-LAN c th c s dng kt ni ch hai UNI, iu ny dng nh tng t vi dch v E-Line nhng y c mt s khc bit ng k. Vi dch v E-Line, khi mt UNI c thm vo, mt EVC cng phi c b sung kt ni UNI mi n mt trong cc UNI tn ti. Hnh 2.3 minh ho khi mt UNI c thm vo v s c mt EVC mi c b sung tt c cc UNI c th kt ni c vi nhau khi dng dch vu E-Line. Hnh 2.9: Qu trnh thc hin khi thm mt UNI vo MAN.Vi dch v E LAN, khi UNI mi cn thm vo EVC a im th khng cn b sung EVC mi v dch v E-LAN s dng EVC a im - a im. Dch v ny cng cho php UNI mi trao i thng tin vi tt c cc UNI khc trn mng. Trong khi vi dch v E-Line th cn c cc EVC n tt c cc UNI. Do , dch v E-LAN ch yu cu mt EVC thc hin kt ni nhiu bn vi nhau. Tm li, dch v E-LAN c th kt ni mt s lng ln cc UNI v s t phc tp hn khi dng theo dng li hoc hub v cc kt ni s dng cc k thut kt ni im - im nh Frame Relay hoc ATM. Hn na, dch v E-LAN c th c s dng to mt lot dch v nh mng LAN ring v cc dch v LAN ring o, trn c s ny c th trin khai cc dch v khch hng.2.2.4 Cc tnh nng ca mng MAN-EKhch hng c kt ni n mng MAN-E s dng cc giao din thch hp vi Ethernet thay v phi tri qua nhiu giai on bin i t lu lng ATM, SONET/SDH v ngc li. Bng cch ny khng ch loi b c phc tp m cn lm cho qu trnh cung cp n gianr i rt nhiu. M hnh Metro hnh thnh t qu trnh cung cp cc ng bng thng (tunel gia cc node v khch hng u cui cung cp cc mng LAN o (VLAN) v cc mng ring o(VPN) d trn mc tho thun dch v SLA).Trong trng hp ny, cc vn c n gin ho i rt nhiu cho c khch hng ln nh khai thc. Khch hng khng cn phi chia ct lu lng v nh tuyn chng n cc ng ph hp n ng cc node ch na. Thay v to ra rt nhiu chm ng truyn gia cc node, y ch cn to ra bng thng da theo SLA m bao hm c nhu cu ca khch hng ti mi node.Ni cch khc, cung cp cc kt ni khng cn l vn thit yu i vi nh cung cp mng na do h c iu kin tp trung vo vic to ra cc dch v gi tr gia tng. Bng vic m rng mng LAN vo mng MAN-E s dng kt ni c bng thng ln hn, S khng cn s khc bit gia cc server ca mng vi cc router c t ti thit b ca khch hng v ti im POP ca nh cung cp mng na.MAN-E c chc nng thu gom lu lng v p ng nhu cu truyn ti lu lng cho cc thit b truy nhp (IPDSLAM, MSAN). C kh nng cung cp cc kt ni Ethernet(FE/GE) ti cc khch hng truyn ti lu lng trong ni tnh, ng thi kt ni ln mng ng trc IP/MPLS NGN chuyn lu lng i lin tnh, quc t. Trong mng MAN-E ngi ta s dng cc thit b CES (Carrier Ethernet Swith) ti cc ni c lu lng cao to thnh mng chuyn ti Ethernet/IP. Kt ni gia cc thit b CES dng hnh sao, ring hoc u ni tip, s dng cc loi cng kt ni: n x 1Gbps hoc n x10Gbps.u im:Bng thng m bo( cam kt tc CIR)Gi thu rThit b u cui thng dngCh cn mt router vn phng phc v cc chi nhnhLinh hot v thun tin m rng mng cao trong khi kh nng tng thch cng ngh m bo ttTch hp nhiu knh dch v trn 1 ng vt lQung tr mng c chuyn giao 1 phn cho ISP, gim ti cho i ng qun tr h thng ca DN/TC.

Phn III: GII THIU V CC THIT B S DNG TRONG H THNG MNG VNPT.

3.1. Thit b mng MEN.Mng MAN-E ca VNPT bao gm cc thit b: BRAS (kt cui dch v Internet), PE-AGG (thit b MAN Core), UPE (thit b MAN Access). Thit b mng truy nhp (IP DSLAM, MSAN, Switch lp 2, thit b mng truy nhp quang) s u ni vo UPE ca mng MAN-E theo s hnh sao, chui, vng (ring). Nhng m bo cht lng dch v v n gin cho vic cu hnh, qun l thit b, s u ni thit b mng truy nhp theo kiu vng s khng c s dng. Trong trng hp cp quang thng xuyn b t, nhm mc ch d phng,cc IP DSLAM (MSAN, Switch lp 2,) c th u ni theo kiu vng d phng ngui. Ngha l vng IP DSLAM (MSAN, Switch lp 2,) s c cu hnh lu lng cc dch v chy v 1 hng ca vng (hng chnh), hng cn li(hng d phng) ca vng ch c ni cp quang m cha c cu hnh chy dch v. Ch khi hng chnh ca vng IP DSLAM (MSAN, Switch lp 2,) b t th mi bt u cu hnh trn IP DSLAM (MSAN, Switch lp 2,) v UPE ca mng MAN-E lu lng dch v chy theo hng d phng.3.1.1. Thit b CORE. -CISCO 7609 : S dng 3 con t ti 3 a im: VNPT Hu, Tng i Bch Yn v ti Vinh Thanh to thnh mt vng Ring core. Cc core c nhim v tp trung lu lng t cc CES v gi ln BRAS.

Hnh 3.1: Thit b core cisco 7609 ti VNPT Hu Thng tin k thut:

Hnh 3.2: Cisco 7609 Internet Router Cisco 7609 Router Internet c chn khe dc c nh s t phi sang tri.Khe 1 c dnh cho cc cng c gim st, trong cho php chuyn i, a phng v qun l t xa, v nhiu giao din gigabit uplink.Khe 2 c th cha mt cng c gim st d phng b sung, trong c th hot ng nh mt backup nu cng c gim st u tin tht bi hoc hng. Nu mt cng c gim st d phng khng cn thit, khe cm 2 c s dng cho mt OSM hoc h tr thit b H Catalyst 6000 khc. Cisco 7609 Router Internet h tr : Mt cng c gim st 2 vi MSFC2 v mt PFC2, v mt cng c gim st d phng 2 vi MSFC2 v mt PFC2. Mi cng c gim st c 2 Gigabit interface uplinks.Lu 1: Cc cng uplink c y chc nng v cng c gim st d phng ch ch.Lu 2: Cc cng c gim st trong mt khung phi hon ton ging nhau. Bng thng c kh nng m rng ln n 256 Gbps khi s dng Switch FabricModule (WS-C6500-SFM) Tnh n tm OSMs b sung hoc Catalyst 6000 modules gia nh D tho lp qut v cc module. H tr Ngun d phng AC hoc DC u vo.

Hnh 3.3: Bng Thng v s lng cng trn Cisco 7609.

3.1.2:Thit b CES/UPE - cisco 76006: S dng 20 con to thnh 7 vng ring access. Cc CES lm nhim v tp trung lu lng t cc DSLAM, MSAN v gi v cc core (Cisco 7609).

Hnh 3.3: Thit b cisco 7606.

Thng tin k thut:

Hnh 3.4: M hnh k thut cisco 7606.Cc router Cisco 7606-S c thit k gn, b nh tuyn hiu sut cao c thit k 6 khe cho vic trin khai mng bin. Vi mt tc chuyn tip ln n 240-Mpps v tng dung lng 480 Gbps, Cisco 7606-S cung cp hiu sut v tin cy tt vi cc ty chn cho b vi x l tuyn d phng v ngun cung cp in. Bao gm hai cng mng Gigabit Ethernet + trn cc thit b h Cisco Catalyst 6500 Series Supervisor Engine 720 vi Multilayer Switch Feature Card 3 (MSFC-3) hoc b nh tuyn cisco mi Switch Processor 720 (RSP 720) vi MSFC-4 c s dng trong cc Cisco 7606-S gip loi b s cn thit cho mt khe cm line-card cho cc cng uplink. Kt qu l s dng hiu qu hn cc khe cm line-card c sn v tng tnh linh hot trin khai. Bn cng mng Gigabit Ethernet c sn s dng trong cc cu hnh b x l dual-route.3.2. Thit b truy nhp.- IP DSLAM(DSL Access Multiplexer): S dng Huawei MA5600. DSLAM l thit b t pha tng i, l im cui ca kt ni ADSL. N cha v s cc modem ADSL b tr v mt pha hng ti cc mch vng v pha kia l kt ni cp quang. Mt thit b DSLAM c th tp hp nhiu kt ni thu bao ADSL - c th nhiu ti hng trm thu bao - v t li trn mt kt ni cp quang. Si cp quang ny s c kt ni n cc CES trong H thng mng.

Tng quan v Huawei MA5600:Huawei SmartAX MA5600 l mt DSLAM IP cng sut ln, n h tr 64 cng ADSL2 + vi tch hp b b chia (ADEE), cho php cung cp cc dch v cho ti a 896 thu bao ADSL2+. Huawei MA5600 h tr nhiu cng ngh truy cp bao gm ADSL / ADSL2 / ADSL2 +, VDSL2, G.SHDSL v G.SHDSL.bis. MA5600 c kh nng x l bng thng mnh m, chc nng dch v kh, v cc tnh nng ti u ha ng dy bn vng. C kh nng v chc nng gip xy dng mng li bng thng rng ti u.

Hnh 3.5 Thit b IPDSLAM Huawei MA5600- Mini DSLAM: S dng Huawei MA5616.Tng quan v mini dslam MA5610: Huawei SmartAX MA5616 c s dng nh DSLAM mini.cung cp cc dch v bng thng rng trn mng FTTB v FTTC. N l mt thit b kiu hp, chiu cao 2U v 19-inch rng, cc uplink c th l GE, GPON, EPON hoc GPON 10G. MA5616 h tr ADSL2 +, VDSL2, SHDSL, POTS, ISDN, cng FE v GE. Thng s dng nh DSLAM MA5616 nh cung cp ADSL2+/VDSL2 cho ngi s dng internet, n c th c kt ni vi Huawei OLT qua GPON, hoc kt ni vi switch mng Ethernet hoc MA5616 khc thng qua cng GE. DSLAM MA5616 cho ti a 128 cng ADSL2+ kt ni phc v ngi s dng.

Hnh 3.6: Thit b mini DSLAM Huawei MA5616- MSAN: S dng Alcatel litespan 1540.

Alcatel 1540 Litespan l mt cng truy nhp a dch v cp quc t, linh hot v phi tp trung, thit b ny cho php nh khai thc cung cp cc dch v bng rng v thoi chi ph thp ti mt vng t mt node n.Alcatel 1540 Litespan cung cp ti pha thu bao cc dch v bng hp cng nh dch v bng rng. Trong s cc dch v bng hp, cc dch v c h tr l POTS, ISDN BA, ISDN PRA v cc ng dy dnh ring tng t v s (nx64kbps) s dng m HDSL, SHDSL, m ng dy HDB3,dch v thoi qua mng IP(VoIP) v thoi qua xDSL(VoDSL). Cc dch v bng rng c h tr nh cc card ng dy SHDSL, ADSL v ADSL 2/2+ c cung cp qua IP v ATM nh mt phng tin truyn ti t thit b ca khch hng ti Alcatel 1540 Litespan.Trong mi trng mng hin ti v mng th h mi NGN, 1540 Litespan h tr cc vai tr sau: Cung cp thoi dng bo hiu V5 Cung cp xDSL qua mng ATM/IP Cung cp knh truyn s liu qua mng TDM/ATM Trong mng th h mi NGN Chuyn i phng tin: Cc knh thoi TDM chuyn thnh cc lung gi d liu dng giao thc truyn ti thi gian thc (RTP) Bo hiu: S qun l ca ngi s dng v vic thit lp cc cuc gi c thc hin bi chuyn mch mm (Softswitch) hoc b iu khin cng a phng tin MGC. Litespan 1540 c iu khin bng mt Softswitch hoc MGC thng qua giao thc bo hiu chun Megaco (IETF) / H.248 (ITU-T).

Cng ngh v vai tr ca MSAN trong mng Vin ThngTnh nng: Trn cng thit b h thng MSAN: Cung cp cc dnh v bng hp ( Narrow band) : PSTN, Cung cp cc dch v bng rng ( Broad band) : xDSL, HSI, MyTV,.. Cung cp cc dch v Voice IP. Kt ni vi cc giao thc V5.2; H248.

- Layer 2 Switch: s dng ca 3 hng: ZTE: ZTE 3928A

Thng s k thut: ZTE 3928A l b chuyn mch y c chc nng chuyn mch L2 v chc nng nh tuyn L3 v ci tin kh nng POE / POE+, trong cho php chng c trin khai nh l thit b truy cp hoc hi t cho cc mng c s thng minh, 24 cng FE + 2 SFP + khe cm m rng (1 * (1 cng RJ45 GE + 1 GE SFP cng) hoc 1 * 2 GE RJ45 cng hoc 1 * 2 FE SFP cng hoc 1 * 2 GE SFP cng), chuyn mch Cng sut: 12.8Gbps (Nhng n c th nhn full duplex), nh gi : 9.6Mpps, 256M Memory + 16M b nh chia s flash). Alcatel: Alcatel ALU 6400

Hnh 3.7: Alcatel OS6400-24U.Thng tin k thut:- 24 cng triple-speed- 20 RJ-45 cng cu hnh 10/100/1000 BaseT - 4 cng giao din chuyn i gigabit mini (Mini-GBIC) small form-factor pluggable (SFP) hoc kt hp cng RJ45- 2-10 cng gigabit stacking- Cng sut: 96 Gbps - Thng lng: 71.4 Mpps

Fujitsu: Fujitsu lightSmart V2224G-OP

Thng tin k thut: Lightsmart V2224G-OP l switch Quang h tr SFP cm ri a dng cho cc thu bao FTTH. Lightsmart V2224G-OP h tr 24x 100/1000Mbs SFP. nng cp dung lng kt ni ti Uplink, Lightsmart V2224G-OP h tr hai khe cm Slot m rng vi dung lng kt ni t 10/100/1000Mbs BaseX hay BaseT ln ti 10Gbs SFP. Lightsmart Switch V2224G-OP c thit k h Trunk Group tnh hoc t ng theo giao thc LACP linh hot trong vic m rng lu lng bng thng. Switch Lightsmart p ng c tt c cc chc nng cho mt Switch Aggregation v Access nh: chc nng MVR, IP IGMP Snooping, QoS, Vlan Q in Q, LACP, port Sercurity, IP DHCPSnooping- GPON: S dng ZTE C320 OLT Thit b u cui ng dy OLT (optical line terminal) cung cp giao din quang v pha mng phi quang ODN v cung cp t nht mt giao din quang v pha mng truy nhp quang. OLT c th c t bn trong tng i hay mt trm t xa.OLT l thit b thuc lp access ca mng MANE. Giao din a dch v kt ni vi mng li v tp trung lu lng.

Hnh 3.8: ZTE ZXA10 C320 xPON OLTCc tnh nng chnh ca thit b:ZTE C320 c 16 khe GPON/EPON. H tr b chia quang t l 1:64, nn ti a c th h tr kt ni m rng cho 1024 khch hng.Nn tng thng nht cho GPON, EPON H tr a dch v: Internet, VoIP, IPTV Chiu cao 2U, cc card lp theo phng ngang, 2khe cho card dch v Giao din hng ln: 4*GE(quang)+2*GE(in), hoc 2*10GE(quang)+2*GE(quang)+2*GE(in). Dung lng ca h thng:16/32 giao din GPON

3.3. Thit b u cui khch hng:- Modem: S dng hu ht Chun ADSL 2+ ca cc hng D-link, TP-link,Zyxel,

- CPE (Router quang): S dng 2 chun GPON v AON.CPE GPON: ZTE F660 v F600W.

CPE AON: Vigor 2910, Linksys AG241v2, vigor fly200. Vigor 2910:

Vigor 2910 c 4 cng LAN v 1 cng WAN (C th cu hnh cng LAN 1 nh cng WAN th 2), 1 cng USB cho modem 3G hay my in mng. Tr 2 anten v chc nng Wi-Fi ca Vigor 2910G, cn li thit k v tnh nng ca 2 sn phm u ging nhau. DrayTek Vigor2910 v 2910G vn thit k vi tng en truyn thng, kiu dng tng t h Vigor2900.Linksys AG241V2: High-speed ADSL Modem Built-in Router and 4-port Switch Advanced firewall and security features

Draytek vigorfly 200:

- Splitter: y l thit b dng tch tn hiu thoi v d liu, cho php va truy nhp Internet va c th dng in thoi. Hin nay, mt s modem ADSL c tch hp lun b tch lc tn hiu (Spliter).Ch dng trong 2 trng hp: Modem khng tch hp sn splitter Cn chia tn hiu ngay t im u ng dy in thoi vo nh v trong nh c nhiu in thoi ni song song.

Hnh 3.6: Thit b SplitterPhn IV: GII THIU V CC DCH V TRN NN MNG MAN-E CA VNPT.Dch v CATV Mc ch: Tn dng h tng mng cp quang c sn ti cc VTT, phi hp vi cc i truyn hnh a phng hoc cc i truyn hnh cp cung cp dch v truyn hnh cp ti VTT. H thng truyn hnh cp hu tuyn CATV s dng cu trc mng lai ghp (gia cp quang v cp ng trc) cho php cung cp trn 100 knh truyn hnh tng t (bao gm c cc knh trong nc v nc ngoi) vi cht lng tn hiu tt v n nh. H thng truyn hnh cp hu tuyn CATV c th trin khai a dch v (triple play gm Voice, Video, Data trn cng mt si cp.Yu cu k thut Kin trc mng CATV c chia lm 3 phn (trong c 2 phn lin quan ti h tng phn cng v 1 phn lien quan ti ni dung): Phn 1: H thng Headend t ti cc VTT. Ti dy s c cc thit b thu pht sng (thng qua v tinh hoc thng qua phng tin truyn dn hu tuyn ti cc i truyn hnh cp khc).Phn 2: H thng cp truyn dn HFC (Hybrid Fiber optic Coaxial). y l h thng cp lai ghp gia mng cp quang c sn ti cc VTT v h thng mng cp ng trc u t mi dn n tng thu bao.Phn 3: Cc knh truyn hnh truyn dn trn h thng CATV ny.Phng n trin khai Cc VTT c nhu cu trin khai h thng CATV s vit phng n u t v phng n kinh doanh nh gi tnh kh thi ca d n khi trin khai ti n v mnh.Xy dng h thng Headend ti thiu c th pht li c cc knh truyn hnh trn h thng CATV ca n v mnh (khng thc hin bin tp v xy dng cc knh chng trnh ring). Knh chng trnh ring ca Tp on s do VASC xy dng v khi d cc VTT c th pht trin h thng CATV ca mnh.Tn dng ti a h thng mng ngoi vi ca VTT.Trin khai ti cc im cha c IPTV trong thi gian ngn.Phi hp kinh doanh vi cc i truyn hnh cp (CATV) ca VTV hoc cc i truyn hnh ln ti H Ni, Nng, TP H Ch Minh m bo tnh php l khi trin khai h thng CATV ti n v.Khng tin hnh bin tp li ni dung m bo tnh php l cng nh khng lm gia tng nhn lc vo h thng CATV. VTT c th m phn vi cc n v truyn hnh cp c th chn thm cc banner, qung co nhm tng doanh thu.

4.4.2. Dch v IPTV (MyTV)

- Dch v IPTV (Internet Protocol Television) l dch v chin lc nm trong k hoch pht trin di hn ca VNPT. IPTV l cha kho VNPT m rng kinh doanh snag lnh vc truyn hnh/ truyn thong.- IPTV l dch v truyn ti hnh nh k thut s ti ngi s dng qua giao thc Internet vi kt ni bng thng rng.- Dch v IPTV ca VNPT, do VASC trc tip xy dng v trin khai trn phm vi ton quc vi tn gi thng mi MyTV, l sn phm ca s hi t, ch vi mt thit b u cui, khch hng c th s dng rt nhiu dch v khc nhau qua chic tivi.- Kh nng ca MyTV gn nh l v hn v n ha hn mang n nhng ni dung k thut s cht lng cao nh video theo yu cu (VoD Video on Demand), hi tho, truyn hnh tng tc/ trc tip, game, gio dc t xa, video blogging, tin nhn nhanh qua TV Tin ti cc dch v ny s c cung cp trn di ng cn gi l dch v Mobile IPTV.- MyTV s mang n cho khn gi mt ci nhn a chiu cng nhng hnh thc gii tr v cp nhp thong tin phong ph, a dng. Mi ngi c th truy cp ti nh, vn phng, trn ng i, thm ch c trn khng.- Cc dch v cung cp trn MyTV Cc knh truyn hnh qung b Cc knh audio qung b Dch v theo yu cu Internet on TV Karaoke Game on demand- Phng thc trin khai

Hnh 4.0: M hnh dch v Khch hang phi c kt ni ADSL 2+ hoc cp quang ti nh cung cp dch v. Mi thu bao phi c mt STB kt ni gia TV v Modem. Trin khai khng chng cho vi d n CATV.

Hnh 4.1: S trin khai theo cng ngh xDSL

Hnh 4.2 Trin khai theo Cng ngh mng truy nhp FTTx

4.4.3. Dch v Managed Services- nh ngha Managed Services Managed Services l cc dch v cng ngh thng tin v truyn thng (ICT) ng b (end to end), c cung cp bi cc nh cung cp dch v vin thng (Service Providers) hoc cc i tc ca nh cung cp dch v (partners) da trn nn tng h tng c s vin thong ca nh cung cp dch v, v d mng IP NGN. Mt dch v c coi l Managed Services nu gm tt c 4 yu t sau: Trin khai, ci t v khc phc s c. Ch ng gim st v theo di h thng C hp ng cam kt cht lng dch v (SLA) Thu bao nh k Li ch ca Managed ServicesKhch hng doanh nghip Khch hng ch cn tp trung vo cng vic kinh doanh chnh ca mnh Gim chi ph, r hn so vi thu ngi v s dng dch v IT ni b Khng phi b chi ph u t, chuyn t CAPEX sang OPEX Tng tnh cnh tranh nh gim c thi gian ra th trng (time to market) Tng c nng sut lao ng Khch hng c s dng dch v chuyn nghip vi cht lng cao khng i, t ln k hoch n trin khai v vn hnh Khch hng c s dng cc dch v vi tnh linh ng cao, t ch mt a ch lin lc Khch hng c s dng cc cng ngh hin i nht vi gi hp lCc loi dch v cung cp Qun tr dch v VPN Qun l dch v thoi truyn thng/ VoIP Qun tr dch v bo mt Qun tr dch v LAN Qun tr dch v lu tr Qun tr dch v kt ni gia cc chi nhnh Ti u ho v nng cp mng T vn, thit k, trin khai cc gii php tch hp h thng Vn hnh, bo tr, bo dng v h tr k thut 24/74.3.4. Cc nhm dch v gi tr gia tng (VAS)Dch v gi tr gia tng trn mng MegaVNN c chiatheo lm 2 nhm: Nhm 1: Cc dch v cng thm (ng dng) chy trn h tngMng MegaVNN (BBFone-VNN, Mega Web, Mega Game, WebFilter,). Nhm 2: Cc dch v lin quan ti h tng mng (tp trung vocc nhu cu kt ni mng Internet connectivity). Hai dch vin hnh c th trin khai nhanh trn mng MegaVNN l dch vbng thng ng (Bandwidth on Demand) v dch v khch hngt qun l dch v (Customer Self Service).4.3.5. Dch v FiberVNNL dch v truy nhp Internet tc cao bng thng i xng thng qua cng Ethernet ca mng MAN-E v i cp si quang. Tc ti a ln n 100 Mbps. Cc ng dng ca dch v:- Truy nhp Internet tc cao vi gi cc hp l- C tc ti d liu ln v xung rt cao v cht lng cc k n nh.- Cung cp cc dch v trn nn Internet: Web, mail, FTP... i tng thch hp s dng dch v- Dch v FiberVNN thch hp cho cc i tng sau:- Cc c nhn/ h gia nh c nhu cu dch v bng rng tc cao.- Cc t chc/ doanh nghip.- Qun Games Internet. Li ch ca Dch v- ng truyn c tc n nh; tc truy cp Internet cao.- Khng b suy hao tn hiu bi nhiu in t, thi tit hay chiu di cp.- An ton cho thit b, khng s st nh lan truyn trn ng dy.- Nng cp bng thng d dng m khng cn ko cp mi.

4.3.6. Dch v MegaWANMegaWAN l dch v mng ring o ca Tp on BCVT Vit Nam. MegaWAN cho php kt ni cc mng my tnh ca doanh nghip (nh cc vn phng, chi nhnh, cng tc vin t xa, v.v... ) thuc cc v tr a l khc nhau to thnh mt mng duy nht v tin cy thng qua vic s dng cc lin kt bng rng xDSL.nh gi t cc chuyn gia v kt qu trin khai nm qua cho thy, nhiu tnh nng u vit ca dch v MegaWan t ra thch hp v em li hiu qu ng k cho cc c quan, doanh nghip c nhu cu kt ni mng thng tin hin i m tit kim, l: kh nng mm do, linh hot ca cng ngh cho php khch hng c th va kt ni mng ring o va truy cp Internet; kh nng nng cp tc truyn dn nhanh chng; kh nng cung cp cho khch hng cc knh thu ring o c tin cy cao; gi cc thp Cng ngh MegaWan Dch v xDSL-WAN l dch v kt ni cc mng my tnh trong nc v quc t bng ng dy thu bao SHDSL (cng ngh ng dy thu bao s i xng) hoc ADSL (cng ngh ng dy thu bao s bt i xng) kt hp vi cng ngh MPLS/VPN. Li ch ca dch vKt ni n gin vi chi ph thp.Mm do, linh hot: c th va kt ni mng ring o va truy cp Internet (nu khch hng c nhu cu).Cung cp cho khch hng cc knh thu ring o c tin cy cao.Dch v mng ring o rt thch hp cho cc c quan, doanh nghip c nhu cu kt ni mng thng tin hin i, hon ho, tit kim. c im dch vThng hiu dch v: MegaWANCc mng my tnh ca khch hng c kt ni qua CPE (Modem/Router ADSL/SHDSL).MegaWAN cung cp cho khch hng hai kh nng kt ni cc mng my tnh vi tc ti thiu l 64Kb/s:S dng SHDSL-WAN vi tc i xng (trn l thuyt tc ln nht c th l 2.3 Mbps). S dng ADSL-WAN vi tc trn l thuyt ln nht c th l 8Mbps/640kbps). Tc cng thc t ph thuc vo yu cu ca khch hng v cht lng ng truyn ca ng dy thu bao xDSL c xc nh trong qu trnh kho st lp t.Khch hng ng k s dng dch v MegaWAN c cung cp dch v truy nhp Internet ng thi trn ng dy thu bao s xDSL. Tuy nhin tc cng c ci t cho truy nhp Internet ph thuc vo tc ln nht m ng dy xDSL thc t c th cung cp v tc MegaWAN m khch hng yu cu. Cc loi hnh dch v c cung cp - Dch v MegaWAN ni tnh - Dch v MegaWAN lin tnh - Dch v MegaWAN quc t4.3.7. Dch v MegaVNN Dch v MegaVNN l thng hiu dch v dch v truy nhp Internet tc cao ca Tp on Bu chnh Vin thng Vit Nam (VNPT) da trn cng ngh ng dy thu bao s bt i xng ADSL. Vi dch v Internet bng rng MegaVNN, bn s khng phi ngi i hng gi ng h ti v cc tp tin c kch thc ln hay xem cc trang Web trn mng Internet. Mi th s tr nn nhanh chng v d dng hn so vi hnh thc kt ni Internet truyn thng (dial up) qua ng dy in thoi. Hin nay, mng MegaVNN ang cung cp cc loi tc kt ni ti a t khch hng n POP gn nht ca VDC:

VNPT s dng cng ngh ADSL cung cp dch v truy nhp mng Internet cho khch hng v ADSL khi c ng dng trong mng truy nhp t ra c nhng u im vt tri so vi PSTN & ISDN ( Nhng cng ngh ny tng c dng rt ph bin trc y). Ta c th thy c s khc bit gia ADSL v PSTN & ISDN nhng im sau: PSTN v ISDN l cc cng ngh quay s (dial-up) o ADSL l 'lin tc / always-on" tc kt ni trc tip PSTN v ISDN cho php chng ta s dng fax, d liu, thoi, d liu ti Internet, d liu ti cc thit b khc o ADSL ch chuyn ti d liu ti Internet PSTN v ISDN cho php chng ta tu chn ISP no m ta mun kt ni o ADSL kt ni chng ta ti mt ISP nh trc ISDN chy tc c s 64kbps hoc 128kbps o ADSL c th ti d liu v vi tc ti 8Mbps PSTN ngt truy nhp ti Internet khi chng ta thc hin cuc gi o ADSL cho php va s dng Internet trong khi vn c th thc hin cuc gi ng thi. Kt ni internet qua ng PSTN v ISDN bng phng thc quay s c tnh cc ni ht. ADSL khng tnh cc ni ht.C ch hot ng ca dch v Internet bng rng MegaVNN:ADSL l ng thu bao s khng i xng. Ngha l tc upload nh hn tc download. u im ca ADSL l tn dng c ng cp ng ca thoi truyn d liu (data). Vy th lm sao c th va s dng c thoi v va s dng Internet (tc l truyn data ng thi trn cng mt thi gian). gii quyt c vic ny th trong di tn s ca cp ng, ngi ta s chia t 0 n 25 kHz s dng cho thoi, 25 n 1104kHz s dng cho data.

Hnh 4.3: Thoi c bn s dng di tn s t 300Hz ti 3,400Hz Trn thc t, cc b tch tn hiu (splitter) c s dng m bo d liu v thoi khng xm phm ln nhau trn ng truyn. Thit b chuyn dng Splitter c s dng tch ring cc tn s cao dng cho ADSL v cc tn s thp dng cho thoi. Nh vy, ngi ta thng t cc Splitters ti mi u ca ng dy - pha thu bao v pha DSLAM.

Ti pha khch hng: cc tn s thp c chuyn n my in thoi cn cc tn s cao i n modem ADSL. Ti cc tng i, cc tn s thp c chuyn sang mng in thoi cng cng PSTN cn cc tn s cao i n mng Internet .Khi mun s dng dch v, khch hng bt my tnh, Modem/Router ADSL Modem, Router s bt tay kt ni vi mng cung cp dch v ca Nh cung cp dch v ISP thng qua b tch tn hiu (Splitter) ca ISP nh sau: Nu l truy nhp Internet, tn hiu t my tnh truyn qua Modem/router, Modem s thc hin kt ni vi mt thit b tp trung tn hiu t cc thu bao c tn gi DSLAM, khi ngi s dng s ng nhp vo mng. Tn hiu tip tc c truyn dn t DSLAM ti trm BRAS (trm ny c chc nng tp hp tn hiu t nhiu DSLAM khc nhau) v n mng Internet ca nh cung cp dch v. Tc ca kt ni gia modem ADSL v DSLAM ph thuc vo cht lng ng truyn, khong cch t modem thu bao n DSLAM v tc ti a c cu hnh sn trn cng ca DSLAM. Nu gi in thoi, tn hiu t in thoi truyn qua Modem/router, n DSLAM qua b ghp tch Splitter ri n tng i thoi cng cng (PSTN). Nu truy cp Internet v gi in thoi cng lc, Modem/router thc hin ghp/tch c hai tn hiu ny thnh gi d liu chung truyn n DSLAM, ti y Splitter ca ISP thc hin vic tch tn hiu thoi ra tng i in thoi cng cng PSTN v truyn qua mng in thoi PSTN, cn tn hiu truyn s liu qua DSLAM n BRAS ra mng Internet. Trn thc t, ngoi cc yu t k thut, tc kt ni vo Internet cn ph thuc vo nhiu yu t khc na nh di y: 1. S ngi dng kt ni vo cng mt DSLAM v thc t c bao nhiu ngi dng ang khai thc kt ni. 2. Tc kt ni gia DSLAM v BRAS. 3. Bao nhiu card DSLAM cng ni vo mt BRAS v bao nhiu ngi dng ang khai thc thc t kt ni. 4. Tc kt ni gia BRAS v ISP. 5. Bao nhiu BRAS kt ni vo ISP v bao nhiu ngi dng thc t ang khai thc. 6. Tc ca kt ni t ISP ti mng Internet ton cu. 7. Bao nhiu thu bao ca ISP ang khai thc (qua cc giao tip khc nhau nh quay s PSTN/ ISDN v ADSL). 8. ISP t chc caching v proxy ra sao, liu thng tin m bn cn khai thc c lu tr trn Cache cha hay phi ti v t Internet.

Hnh 4.4: Qu trnh hot ng ca dch v MegaVNN Cc thnh phn thit b MegaVNN t pha khch hng: s dng c dch v MegaVNN, khch hng phi c nhng trang thit b sau: - ng dy thu bao ng k s dng dch v Mega VNN. - My vi tnh c nhn: C h tr cng USB hoc card mng Ethernet 10Base-T hay 100Base-T. - Modem ADSL. - B tch lc tn hiu Splitter: Ch dng trong 2 trng hp: Modem khng tch hp sn splitter Cn chia tn hiu ngay t im u ng dy in thoi vo nh v trong nh c nhiu in thoi ni song song. - Card mng, cc thit b chuyn mch switch/hub: + Card mng: Dng kt ni my tnh v modem ADSL. Nu modem ADSL h tr chc nng u ni qua cng USB th khng cn card mng. + Switch/hub (ty chn): Thit b ny cn thit cho nhu cu kt ni nhiu my tnh pht trin mng LAN cho nhiu ngi s dng.

Phn V: GII THIU V CCH CU HNH THIT B U CUI KHCH HNG VI DCH V MEGAVNN V MYTV CA VNPT.5.0 Ci t v cu hnh Card mng- Hin nay hu ht cc my tnh u c card LAN onboard v c driver km theo Mainboard hoc H iu hnh tch hp nn khu ci t driver card mng ta c th b qua v qu d dng.- Cc my tnh trong ton mng c cp pht IP ng t 1 DHCP Server tp trung. Do khng cn thit phi t IP cho my tnh. Trong trng hp cn thit phi t IP tnh, cn tun th theo lp a ch mng c quy hoch cho cc b phn v cc quy nh ni b khc.5.1 Ci t Modem ADSL Linksys AG241- Login vo modem theo a ch mc nh ca thit b l 192.168.1.1, my tnh t IP theo di a ch trn.

- Modem kt ni n nh cung cp theo giao thc PPPoE, do ta chn Encapsulation l RFC 2525 PPPoE, Multiplexing: LLC- Mc VPI/VCI t l 8/35 theo ng thng s cu hnh ca nh cung cp dch v VNPT TT Hu- DSL Modulation mc nh l Multimode hoc c th chnh li l ADSL2/2+- Mc PPPoE setting in username v password ca ng internet do ISP cung cp.- Trong mc Network setup, thay i IP LAN, DHCP ca modem nu cn

- Kch Save Setting lu cu hnh- Reboot modem hon tt vic ci dt.5.2 Ci t v thit lp thit b u cui router quang Vigor 2910- Lp mng mc nh ca Vigor2910 l 192.168.1.1. Login vo router bng web ti a ch trn, user: admin, password trng:

- Vo mc WAN -> chn Internet Access.

Mc WAN1 chn mode l PPPoE, chn tip Details page vo cu hnh PPPoE cho Router. Enable PPPoE Client Mode. Nhp account ca nh cung cp dch v vo mc Username v Password, y c th l: dvbr.ftth/hue2009.

- Chn OK lu cu hnh.- Vo System Maintenance -> System reboot Reboot thit b.- Hon tt khu ci t, kim tra trng thi kt ni Internet ca Router.5.3. Ci t v thit lp thit b u cui router quang Vigorfly 200- Lp mng mc nh ca Vigorfly 200 l 192.168.1.1. Login vo router bng web ti a ch trn, user: admin, password trng. Vo mc WAN -> chn Internet Access.

Mc WAN1 chn mode l PPPoE, chn tip Details page vo cu hnh PPPoE cho Router.

Enable PPPoE Client Mode. Nhp account ca nh cung cp dch v vo mc Username v Password, y c th l: dvbr.ftth/hue2009.

- Chn OK lu cu hnh.- Vo System Maintenance -> System reboot Reboot thit b.- Hon tt khu ci t, kim tra trng thi kt ni Internet ca Router.Cu hnh MyTV. - Vo Wan -> Multi-VLAN chn enable Multi-VLAN Setup.- Chn chanel 4 -> tick vo Enable -> Add Tag:37 -> priority:1 y priority c th chn t 0 -> 7. V MyTV cn mc u tin cao n ADSL nn ta cn priority cao hn ADSL.

- Chn qua th Bridge -> tick vo Enable chanel 4 -> tag P4 chn Port 4 ca modem cho MyTV.

Sau Nhn OK -> Hon tt cu hnh cho MyTV.

II. NHN XT V NH GI CA N V THC TP