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8/14/2019 Ni Dung hc Phn Mng Vin Thng
1/59
1
Mng vin thng
GV: Nguyn Th Thu HngDT: 04-33519387
[email protected]@yahoo.com
B mn Mng vin thngKhoa vin thng 1- PTIT
GV:Nguy
n
ThThu
Hng
2008
Ni dung hc phn Mng vin thng
L thuyt: Gii thiu chung v mng vin thng Cc mng chuyn mch knh Cc mng chuyn gi Mng IP Xu hng pht trin mng v dch v vin thng
Bi tp: Gm phn t chn v phn bt buc(xem file ring) Thi vit cui k (cu hi n tp l phn bi tp)
GV:Nguy
n
ThThu
Hng
2008
Yu cu bi tp Mng vin thng
Phn 1: Gii thiu chung v mng vin thng Cu 1: Nu khi nim mng vin thng. Mng vin thng bao gm nhng
phn tg? Cho v d.
Cu 2: Trnh by khi nim d
ch v
vi
n thng v m
ng mang d
ch v
. Phn 2 : Cc mng chuyn mch knh v chuyn gi
Cu 3: Nu nhng u im ca phng thc truyn gi so vi phngthc truyn knh?
Cu 4: Phn tch v so snh c im ca mng FR v ATM Phn 3 : Mng IP
Cu 5: Trnh by chc nng cc lp ca m hnh giao thc TCP/IP. Sosnh TCP vi UDP
Cu 6: Trnh by cu trc gi tin IPv4 v cc phn lp a ch IPv4 Cu 7: Trnh by v gii thch cc u nhc im ca cng nghVoIP Cu 8: Trnh by cc tham sQoS ch yu trong mng VoIP
GV:Nguy
n
ThThu
Hng
2008
Yu cu bi tp Mng vin thng
Phn 4 : Xu hng pht trin mng v dch v Cu 9: Phn tch xu hng pht trin mng vin thng v dch v
Cu 10: Nu khi nim NGN. Phn tch 4 c im c bn ca NGN. Phn 5 : Bi tp m rng (BT BUC)
Vm hnh phn lp chc nng, cu trc vt l ca mng cung cpdch v v gii thch cchhotng cbn camt trong ccdch v sau: 1719, 1800, 1900, VoD, VPN, IPTV, Thoi qua trangweb, Qun l ti nh, o to txa qua mng ISDN hoc NGN, Trchi tng tc, thc tio, Truyn hnh hi nghNGN, Bn hng quamng Internet.
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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2
Chng 1:Gii thiu chung v mng vin
thng
GV:Nguy
n
ThThu
Hng
2008
Ni dung chng 1
1.1 Cc phn tcu thnh mng vin thng 1.2 Dch v vin thng v mng mang dch v 1.3 Phn loi mng vin thng
GV:Nguy
n
ThThu
Hng
2008
Khi nim vin thng
Vin thng
n hng Song hng
Truynthanh
Truynhnh
Truynhnh vtuyn
Truynhnhcp
inbo
Telex inthoi
cnh
inthoi
ding
Truyndliu
Thint
Truynhnhhingh
GV:Nguy
n
ThThu
Hng
2008
Cc phn tcu thnh mng vin thng
Node (nt) Link (lin kt) Terminal (thit bu cui) Network
equipment (thitb mng)
Node
TBDC
Ni ti vng khc
Mng truyn dn
Node
Node
Node
TBDC
TBDC
TBDC
TBDC
TBDC
TBDC
TBDC
u l nt v lin kt?u l cc thit b mng v thit b u cui?
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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3
GV:Nguy
n
ThThu
H
ng
2008
Cc phn tcu thnh mng vin thng Khi nim v nt v lin kt
Nt l mt im trung gian trn mng vin thng ni thchin kt ni tm thi gia cc u vo v u ra theo yucu.
Cc lin kt l cc ng truyn dn tn hiu lin tc giahai im trn mng. Mt lin k t c th l mt mt ng
truyn dn vt l, mt bng tn trong h thng ghp knhtheo tn s hay mt khe thi gian trong h thng ghpknh theo thi gian. Cc lin kt y ngoi mi trngtruyn dn cn bao gm c cc phng tin kt ni
chng. GV:Nguy
n
ThThu
H
ng
2008
Cc phn tcu thnh mng vin thng Khi nim v nt v lin kt
Ntmng
Ntmng
Ntmng
Linkt
Lin
kt
Lin kt
Thubao
Thu
bao
Thubao
GV:Nguy
n
ThThu
Hng
2008
Cc phn tcu thnh mng vin thng Cc thit b mng
Mng vin thng l tp hp cc thit b mng c kt ni vinhau theo mt cu trc, kin trc nht nh v c thit lp,qun l nh cc h thng qun l tin cy.
Trong mng in thoi chuyn mch cng cng PSTN cc thitb mng c k n nh: Tng i, b tch ghp knh, b tptrung thu bao xa, thit b bo hiu, thit b truyn dn, Trongmng my tnh: router, hub, gateway, bridge, Trong mng ding: tng i MSC, cc trm chuyn tip BSC, trm thu phtsng BTS, gateway, trong mng VoIP: Gateway, gatekeeper,signaling gateway,
Nhvy, ta thy cc thit b trong cc mng vin thng rtang dng v chng loi tuy nhin xu hng chung hin nay lcc thit b s ngy cng a nng (tch hp), thng minh, bomt v gn nh hn.
GV:Nguy
n
ThThu
Hng
2008
Cc phn tcu thnh mng vin thng
Thit b u cui Thit b u cui (Terminal Device) l thit b giao tip vi ngi
s dng v l cu ni gia ngi s dng v mng. Thit b ucui c nhiu loi, chng rt khc nhau v chc nng v yucu dch v. V d: in thoi, my tnh, my Fax, V tr v chc nng, dng thc thng tin
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
H
ng
2008
Dch v vin thng v mng
mang dch v Dch v vin thng
"Dch v vin thng"l dch v truyn khiu, tn hiu, s liu,ch vit, m thanh,hnh nh hoc ccdng khc ca thngtin gia cc im ktcui thng qua mng
vin thng. Mng mang dch v
PC
Fax
1 2 3
4 5 6
7 8 9
*8 #
M odem
Ngi s dngdch v vin thng
Mng vin thng
Nh cung cp dch v
Nh cung cp h tng mng
GV:Nguy
n
ThThu
H
ng
2008
Dch v vin thng v mng mang
dch v
Cc quan im phn loi dch v vinthng Phn loi theo loi tin tc: thoi, d liu,
hnh nh
Phn loi theo mng: PSTN, ISDN, ding, Phn loi theo tnh cht dch v:
online/offline, c nh/di ng,
GV:Nguy
n
ThThu
Hng
2008
Dch v vin thng v mng mangdch v
Ngoi ra, cn c th phn loi theo
ngi s dng dch v v theo nhcung cp dch v: Theo ngi s dng:
Dch v c bn Dch v Internet Dch v gi tr gia tng Cc dch v trn nn mng th h sau.
GV:Nguy
n
ThThu
Hng
2008
Phn loi mng vin thng Theo tin trnh lch s Theo tnh cht k thut v cng ngh
Phn loi mng vin thng
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
H
ng
2008
Theo tin trnh lch sPhn loi mng vin thng
Mng tin in bo trc khi c Morse
(Primitive Telegraph before Morse)
GV:Nguy
n
ThThu
H
ng
2008
Theo tin trnh lch sPhn loi mng vin thng
Mngin bo ca Samuel Morse
GV:Nguy
n
ThThu
Hng
2008
Theo tin trnh lch s
Phn loi mng vin thng
Mngin thoi cng cng
Tngi
Tngi
T ng
i
Tngi
Ni ti vng khc
Mng truyn dn
GV:Nguy
n
ThThu
Hng
2008
Theo tin trnh lch s
Phn loi mng vin thng
Mng truyn s liu: truyn s liu gia cc my
tnh d liu. Thng gp l mng X25 (chuyn gi) v FR (khung)
X21X25
Frame relay
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
H
ng
2008
Theo tin trnh lch sPhn loi mng vin thng
Mng thng tin di ng
Mng in thoi t ong cm tay u tin
GV:Nguy
n
ThThu
H
ng
2008
Theo tin trnh lch sPhn loi mng vin thng Mng my tnh: Cu trc
Hnh sao (star) Chu trnh (loop) Li (mesh) Cy (tree)
Vng (ring) Xa l (bus)
GV:Nguy
n
ThThu
Hng
2008
Theo tin trnh lch s
Phn loi mng vin thng
Mng my tnh
Thit bu cui (Users)
Cc nt mng
Printer
GV:Nguy
n
ThThu
Hng
2008
Phn loi mng vin thng theo tnh cht kthut v cng ngh
Cng ngh chuyn knh PSTN ISDN GSM
Cng ngh khung (FR) Cng ngh gi
X25 ATM IP Cc mng tng lai
Phn loi mng vin thng
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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Chng 2:
Cc mng chuyn mch knh
GV:Nguy
n
ThThu
H
ng
2008
Ni dung Mng in thoi chuyn mch cng cng (PSTN)
Cu trc mng PSTN Khoch nh sv nh tuyn trong PSTN
Mng stch hp a dch v (ISDN) Tin xy dng mng ISDN Cu hnh tham chiu Cc loi knh v giao tip trong ISDN
Bo hiu Bo hiu thu bao Bo hiu knh lin kt (CAS) R2 Bo hiu knh chung (CCS) CCS7
GV:Nguy
n
ThThu
Hng
2008
Mng in thoi chuyn mch cngcng (PSTN)
PSTN: Public SwitchedTelephone Network Mng in thoi chuyn
mch cng cng L mng dch v pht trin
rt sm Cung cp dch v thoi v
phi thoi L mng vin thng lu i
nht v ln nht (hn 1 tthu bao -2006)
Tngi
Tngi
Tngi
Tngi
Ni ti vng khc
Mng truyn dn
GV:Nguy
n
ThThu
Hng
2008
Bn cht PSTN l mt mng hot ng theo
phng thc mch (circuit mode)
theokiu kt ni c hng (connection-oriented)gm 3 pha: s dng cc h thng bo hiu. Thit lp kt ni (setup) Duy tr kt ni (conversation) Xo kt ni (released).
Mng in thoi chuyn mch cngcng (PSTN)
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
H
ng
2008
c im ch yu ca PSTN: Truy nhp analog 300-3400 Hz
Kt ni song cng chuyn mch knh
Bng thng chuyn mch 64kb/s hoc 300-3400Hzi vi chuyn mch analog
Khng c kh nng ding hoc ding rt hnch
C nhiu chc nng tngng vi mng N-ISDN
Mng in thoi chuyn mch cng
cng (PSTN)
GV:Nguy
n
ThThu
H
ng
2008
Tng i
Tng i Tng i
Analog AnalogS
elephone Chuynmch s
Hnh 2.1: Mng IDN (Mng s tch hp ging PSTN)
Mng in thoi chuyn mch cng
cng (PSTN)
GV:Nguy
n
ThThu
Hng
2008
Telephone - in thoi c nh Fax Cordless: my ko di PC+MODEM PBX
PSTN
Cc thit b pha u cui
in thoi c nh
GV:Nguy
n
ThThu
Hng
2008
Telephone - in thoi c nh
L mt thit b u cui Analog, hot ng song cngFDX (Full Duplex), thit b ny to ra hai knh tingni ngc chiu nhau va l my thu va l mypht khng cn qua mt qu trnh chuyn i no.
S dng h thng bo hiu chun gi l bo hiu thubao Analog ging nhmodem, fax, cardphone
Truy cp vo mng qua ng dy (mch vng thubao)
PSTN
Cc thit b pha u cui
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GV:Nguy
n
ThThu
Hng
2008
PSTN
Cc thit b pha u cuiT.line
RJ-11
Mch bov
SW
Mch thuchung
Mch chng ngccc ngun nui
Mchquay s
Mchtrit clickMy pht thoi
Mch cn bng
Mch thu thoi
Hybrid Mch kh.iiu chnh
ngni
ngnghe
S khi in thoi c nh GV:Nguy
n
ThThu
Hng
2008
PSTN
Cc thit b pha u cui
Hybrid
Ph t
Thu
Mch cnbng
Hybrid
P1
P2
VF
300-3400 Hz VF
Ca tng i
Mch cnbng
HybridVng dy thu bao
GV:Nguy
n
ThThu
Hng
2008
Fax Trao i vn bn tnh v hnh nh tnh trn mt trang
giy i vi PSTN hin nay ngi t a s dng my fax G3
c thit k ph hp vi ng dy in thoiAnalog. Ngoi Fax G3 cn c Fax G4 cho ISDN v myfax th h c G1, G2.
Dng cng ngh x l tnh hiu s chuyn t hnhnh trn vn bn s nh mt thit b qut nh(scanner), tn hiu s mang hnh nh ca bn gc(origin) chuyn qua mt kt ni ca mng PSTNmy thu, c b phn in in hnh nh trnmt trang giy (copy).
PSTN
Cc thit b pha u cui
GV:Nguy
n
ThThu
Hng
2008
Fax Mt cuc lin lc fax cng ging nh lin
lc thoi v phn quay s, tnh cc.Hot ng y khc vi hot ngtrong in thoi.
L mt thit b bn song cng thngtin mt chiu.
My fax G3 c modem t trong my(buildin) chuyn t tn hiu s VF(Voice Frequency). hng ngc:chuyn i ngc li, tVF Digital .
PSTN
Cc thit b pha u cui
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
Hng
2008
Cordless: in thoi ko di(m con) L mt TBC ca mng PSTN to
ra nh c lin k t v tuyn giahai b phn ca h thng cordless(Base Unit v Handset) m handsetc th di ng trong mt phm vihp.
c kh nng di dng trong phm vi
hp d b va chm tn s, khng tincy v s dng cng nghAnalog
PSTN
Cc thit b pha u cui
GV:Nguy
n
ThThu
Hng
2008
PC+MODEM
PSTN
Cc thit b pha u cui
Tng i
Tng i Tng i
Analog AnalogS
PC Modem Chuynmch s
S
GV:Nguy
n
ThThu
Hng
2008
PBX
PSTN
Cc thit b pha u cui
GV:Nguy
n
ThThu
Hng
2008
Phn cp qun l S dng cu trc phn
cp trong cc mngin thoi c th lmn gin cng tc qunl mng v n gin
trong thit k chuynmch.
Xu hng hin nay lgim cp trong phncp mng v cung cpthm nhiu tuyn thayth
Vi Vit Nam Cp quc t Cp lin tnh
Cp ni ht
Cu trc mng PSTN ca Vit Nam
Gateway
Hanoi AXE-
105
Gateway
HCM city
AXE-105
Gateway
Danang
AXE-105
Transit
Hanoi 1
TransitHanoi 2
TransitDanang
Transit
HCM 1
TransitHCM 2
Local Exchanges
Area 1
Local Exchanges
Area 3
Local Exchanges
Area 2
International
layer
National layer
Local layer
Vietnamese Network Hierarchy
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
Hng
2008
K hoch nh s Mcch chnh ca k hochnh s l gn cho mi thu
bao v d ch v mt m duy nh t, n gin c th thitlp cuc gi mt cch t ng.
Theo quy tc, mi mng mang khc nhau s c cc k hochnh s hoc cc sery khc nhau: PSTN, PLMN
K hochnh s h tr tin trnh thit lp cu c gi, cbit l trong vi c chn tuy n trong cc t ngi v vi c ktlin mng gi a cc m ng mang, ng thi to nn tng cbn cho vi c tnh c c cuc gi.
PSTN
Mt skhoch c bn
GV:Nguy
n
ThThu
Hng
2008
Phng php nh s M thu bao (SC- Subscriber code) M tng i (Local Exchange code) M vng (AC- Area code) M nc (Country code) M c bit i vi cuc gi lin tnh dng tin t 0+AC+TN i vi cuc gi quc t dng tin t 00+CC+AC+TN Hin nay ngi t a s dng AC (Area Code) vi 2 ngha:
m vng v m mng
PSTN
Mt skhoch c bn
GV:Nguy
n
ThThu
Hng
2008
Phng php nh tuyn PSTN hot ng theo phng thc circuit mode thc
hin phng php nh tuyn cuc gi thc hin
mt kt ni qua mng, mi cuc gi c nh tuyn mtln to r a mt kt ni, kt ni ny c duy tr trong sutthi gian m thoi.
C nhiu phng php nh tuyn nh nh tuyn tnh vnh tuyn ng. nh tuyn tnh l nh tuyn khng thay i theo thi gian
v trng thi, khi chn hng ra ca cuc gi. nh tuyn ng khi chn hng ra ca mt nt ph thuc
vo trng thi mng ti tng thi im.
PSTNMt skhoch c bn
GV:Nguy
n
ThThu
Hng
2008
nh tuyn ti tng i ni ht (LE)
PSTNMt skhoch c bn
Mng ni ht
LELE
0 , 00Trung k
1xy
Dch vcbit
xyni ht
Mng quc gia
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
Hng
2008
Bo hiu Bo hiu thu bao Bo hiu knh lin kt (CAS) Bo hiu knh chung (CCS)
Gii thiu chung v bo hiu lin i Hin nay c nhiu h thng bo hiu gia cc tng i, phn chia
lm hai loi CAS, CCS (Channel Associated Signaling Bo hiuknh kt hp v Common Channel Signaling- Bo hiu knh chung). CAS: gia cc tng i phi c cc thng tin bo hiu chia thnh cc
knh bo hiu, mi knh c gn cho mt knh thoi. Thng tin bohiu trn knh bo hiu s cho bit v kt ni l in quan ti knhthoi c gn kt. Trong mt s trng hp s dng cc knh thoitruyn thng tin bo hiu cho k t ni lin quan ti chnh n.
CCS: lin kt bo hiu gia hai tng i s dng chung cho tt c ccknh thoi ni gia hai tng i bng cch ghp gi.
Bo hiu
GV:Nguy
n
ThThu
Hng
2008
Chu trnh bo hiu (thu bao in thoi c nh)
PSTN
Bo hiu thu bao Analog Calling A LE Calling B
Nhc
Quays
tmy
Hook off
Dialing tone
nh tuynPulse/tone
Ringing tone Ringing signal
Hook off
Nghe/Tha my
VF m thoi VF
Hook on Busy tone
Hook on tmy
GV:Nguy
n
ThThu
Hng
2008
Bo hiu lin i:
Bo hiu lin i
Tng i
Tng i Tng i
Bo hiu lin iBo hiu thu bao Bo hiu thu baoGV:Nguy
n
ThThu
Hng
2008
Gii thiu chung v bo hiu lin i Vit Nam hin nay s dng hai loi h thng bo
hiu lin (tng) i: H thng bo hiu knh k t hp/knh ring R2 (ChannelAssociated Signalling)
H thng bo hiu knh chung s 7 CCS7 (Common ChannelSignalling number 7) cn gi l S7 hay SS7 (SignallingSystem Number 7 - H thng bo hiu s 7).
Bo hiu
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13
GV:Nguy
n
ThThuH
ng
2008
Gii thiu chung v bo hiu lin i Bo hiu R2:
Bo hiu trng thi (state) Bo hiu thanh ghi (register)
Exchange
AExchange
BCall
Channel 1
Channel 30
TS 16
TS 16
Channel 1
Channel 30
2 dy4 dy
2 dy
Bo hiu knh kt hp
Bo hiu
GV:Nguy
n
ThThuH
ng
2008
Gii thiu chung v bo hiu R2 Bo hiu thanh ghi
Mc ch: Cc tng i lin quan ti mt cuc gi thng bocho nhau nhng thng tin cn thit thc hin kt ni.
V d: ch ca kt ni, thuc tnh ca my b gi, thuc tnh camy ch gi
Bo hiu thanh ghi ch din ra khi xut hin cuc gi, giaion thit lp kt ni.
Bo hiu thanh ghi khng s dng TS 16 m s dng chnhngay knh thoi va chim gi thng tin bo hiu thanh ghi.
Trong giai on bo hiu thanh ghi, cuc m thoi cha dinra, cc ng trung k b cuc gi chim nhng chatruyn ti ting ni.
Bo hiu
GV:Nguy
n
ThThu
Hng
2008
Gii thiu chung v bo hiu R2 Bo hiu thanh ghi
Bo hiu thanh ghi din ra theo 2 hng i v v.
Thng tin bo hiu thanh ghi c m t bi tn hiu Analogtheo mt chun chung gi l MF. Ngi ta dng hai tn hiu hnh sin nm trong bng tn thoi
to ra tn hiu t hp (theo bng). Cc tn hiu hng i v vnh s theo 1.2.315 v tn hiu a tn hng i c tn scao hn tn hiu a tn hng v.
Bo hiu
GV:Nguy
n
ThThu
Hng
2008
XX
15
XX14
XX13
XX12
XX11
XX10
XX9
XX8
XX7
XX6
XX5
XX4
XX3
XX2
XX1
Back ward Hng v54066078090010201140
Forward Hng i198018601740162015001380Tn hiu
Bo hiu thanh ghi
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GV:Nguy
n
ThThuH
ng
2008
- nt -II-15Bo ht cc digit sI-15
- nt -II-14I-14
- nt -II-13Cuc gi ny i ti my t vn hnhI-13
- nt -II-12L tng i sau yu cu tng i trckhng c chim (tip) nhn
I-12
D tr cho quc giaII-11Truy nhp ti dch v c bitI-11
Ch gi l in thoi vin quc t (hoc c chc nng quct)
II-100I-10
Ch gi l thu bao u tin gi i quc tII-99I-9
Ch gi l my ng k truyn d liu quc tII-88I-8
Ch gi l thu bao khng c chc nng chuyn cuc giII-77I-7
Ch gi l my truyn d liuII-66I-6
Ch gi l in thoai vinII-55I-5
My d tr s dng quc giaII-44I-4
My ch gi l my bo trII-33I-3
My ch gi l my thu tin/u tinII-22I-2
Ch gi l thu bao bnh thng (TB khng ghi tn)II-11I-1
Hng iNhm IIHng iNhm I
Bo hiu thanh ghi
GV:Nguy
n
ThThuH
ng
2008
D trB-15D trA-15
D trB-14D trA-14
D trB-13D trA-13
D trB-12D trA-12
D trB-11D trA-11
D trB-10D trA-10D trB-9D trA-9
My b gi ang hngB-8Pht li 3 s trc (n-3)A-8
Thu bao b (ch) gi khng tnh ccB-7Pht li 2 s trc (n-2)A-7
Thu bao b (ch gi ??) gi ri, c tnh ccB-6Bo hiu kt thc thit lp trng thi thoiA-6
S b gi khng s dng (s my khng c trnmng)
B-5 nhn digit v gi tip loi ch gi-Ln pht A5 u tin loi ch gi- Ln pht A5 tip s ch giGi loi cuc gi (II) nu c A 5 ti p t he o s gi s chgi
A-5
Nghn pha trcB-4Bo hng nghn mchA-4
Thu bao b gi ang bnB-3Gi thng bo v loi ch gi (nhm II) v nhn thngbo theo ngha B.(Chuyn sang thu theo bnB vgi t nhi u nhmII)
A-3
Thu bao b gi chuynB-2Pht li mt ch s trc (n-1)A-2
Thu bao b gi ri v yu cu truy tm cuc g iquy ph
B-11140Hz-1020Hz gi con s tip theo (n+1)A-1
Hng vNhm BHng vNhm A
GV:Nguy
n
ThThu
Hng
2008
PSTN : Bo hiu R2
A B
091824678
I9
A1
I1
A1
I8
A2
I1
A3
GV:Nguy
n
ThThu
Hng
2008
H thng bo hiu s 7 Khi nim u im Cc phn t M hnh tham chiu Phn chuyn giao bn tin MTPV d v bo hiu trong ISDN
Bo hiu knh chung s7
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThuH
ng
2008
Khi nim bo hiu lin i
Tng i Tng i
My in
thoi My in
thoi
Bo hiu thubao
Bo hiu thubao
Bo hiu lin
i
Bo hiu lin i c phn chia thnh bo hiu knh kt hp (CAS) v bo hiu knhchung (CCS). i h thng bo hiu knh kt hp, cc tn hiu c thu v pht trn cngmt ng vi tn hiu ting ni. Trong khi , bo hiu knh chung tn hiu bo hiuc thu v pht qua mt ng dnh ring cho bo hiu khc vi knh ting ni. G
V:Nguy
n
ThThuH
ng
2008
H thng bo hiu s7 H thng bo hiu s 7 l h thng bo hiu
knh chung, c nhim v truyn thng tin bohiu gia cc tng i vi nhau thit lp,kt ni, qun l v gim st cc phin truynthng (cuc gi thoi, truyn s liu, hnhnh).
GV:Nguy
n
ThThu
Hng
2008
u im SS7 Cu trc modun vi kin trc lp cho php nhanh chng a
vo cc dch v mi. Nhanh: Trong hu ht cc trng hp, thi gian thit lp
cuc gi t hn 1 giy. Dung lng cao: Mt knh bo hiu c th x l tn hiu bohiu cho hng nghn cuc gi cng lc.
Kinh t: t i hi thit b bo hiu hn so vi cc h thngkhc.
Tin cy: Mng SS7 c tin cy rt cao nh s dng cctuyn v nt bo hiu d phng. C kh nng t ng iuchnh cu hnh mng c lp vi mng thoi.
Linh hot: H thng c th cha nhiu tn hiu, c th sdng cho nhiu mc ch ch khng chdnh cho dch vthoi. G
V:Nguy
n
ThThu
Hng
2008
Cc phn t trong SS7
SP (signaling point): im/nt bo hiu (trong mng PSTN, SPthng l cc tng i t cp host tr ln).
STP: im chuyn giao bo hiu, l mt nt trong CCS7chuyn tip cc bn tin bo hiu t lin kt ny n lin k tkhc.
SL (signaling link): Gia cc im bo hiu c lin k t vinhau bng lin kt bo hiu. y l mt knh truyn dn s,trn cc bit chm ho thng tin tn hiu. Cc lin kt bohiu c thit k vi tin cy rt cao ngha l kh nngnghn mch trong trao i thng tin bo hiu him khi xy ra.
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThuH
ng
2008
Cc phn t trong SS7
GV:Nguy
n
ThThuH
ng
2008
Cc phn t trong SS7
GV:Nguy
n
ThThu
Hng
2008
M hnh tham chiu ca SS7
GV:Nguy
n
ThThu
Hng
2008
Phn chuyn giao bn tin MTP
MTP (Message Transfer Part): Phn chuyn giao tinbo (hay cn gi l phn chuyn giao bn tin bo
hiu trong CCS7) Bao gm cc chc nng chung i vi tt c cc bn
tin, nhng chc nng ny cung cp kh nng chuyncc bn tin mt cch tin cy v trong sut gia cci tng s dng ca mng bo hiu v ni dungmi bn tin bo hiu l hon ton c lp vi nhau.
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThuH
ng
2008
Phn chuyn giao bn tin MTP Nh MTP, cc bn tin bo hiu s c chuyn
giao: ng: Tt c cc bn tin mo phi c sa li
trc khi chng c chuyn giao ti phn cangi s dng bn thu/nhn bn tin.
c sa li lin tip.
Khng b tn tht hoc lp li.
GV:Nguy
n
ThThuH
ng
2008
Phn chuyn giao bn tin MTP MTP gm 3 lp l MTP1, MTP2 v MTP3
MTP1 nh ngha cc phng tin vt l dng chuyn thng tin t im ny ti im khc, n lgiao din vi ti thng tin. knh d liu cc thit b u cui truy nhp ti h thng chuyn mch
MTP2 thc hin cc chc nng ng bo hiu, bao gm iu khin thu (ti lp 3) iu khin pht (t lp 3) iu khin trng thi knh Pht hin li, phn tch bn tin, kt ni (gia cc phn thu, pht
n lp 1)
GV:Nguy
n
ThThu
Hng
2008
Phn chuyn giao bn tin MTP MTP2: Bn tin lp 2 tng t bn tin lp 2 ca h
thng truyn d liu. C 3 loi SU c s dng vi 3 mc ch khc
nhau: MSU: l mt n v tn hiu c cha bn tin bo hiu
n>2
LSSU: l mt n v tn hiu khng cha bn tin bohiu m cha thng tin v trng thi ca lin kt bohiu (SIO+SIF=SF =8 hoc 16bit)
FISU: l mt n v tn hiu lp y khong ri khitrn lin kt bo hiu khng truyn bn tin bo hiuhay trng thi lin kt bo hiu. SIO + SIF = 0
GV:Nguy
n
ThThu
Hng
2008
Phn chuyn giao bn tin MTP
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThuH
ng
2008
Phn chuyn giao bn tin MTP BSN: ch s th t SU v pha sau (hng v) BIB:
bt ch th hng v FSN: ch s th t SU v pha trc (hng i)
FIB: bt ch th hng i LI: ch th v di, ch th s octet trong cc trng
gia trng LI v FCS. LI=0 FISU; LI=1 hoc 2 LSSU;LI>2 MSU SIO: ch th dch v (octet)
FCS: dy kim tra khung
SIF: trng thng tin bo hiuGV:Nguy
n
ThThuH
ng
2008
Phn chuyn giao bn tin MTP MTP3: Cha cc chc nng mng bo hiu SNF gm iu
khin bn tin bo hiu v iu hnh mng bo hiu. iu khin bn tin bo hiu:
nh tuyn bn tin Phn bit bn tin Phn b bn tin
iu hnh mng bo hiu: Mc ch ca phn ny trong chc nng
mng bo hiu l thc hin cc hnh ng cn thit duy trdng bo hiu trong trng hp h thng c sai hng.
GV:Nguy
n
ThThu
Hng
2008
H thng bo hiu s 7
SCCP: L phn iu khin kt ni bo hiu athm vo thch ng vi UD theo c hai kiu:hng kt ni v phi kt ni.
UP(User part) : cc phn ca ngi s dng. Phnny to ra v phn tch cc thng tin bo hiu.Chng s dng MTP nhl chc nng truyn ti mang thng tin bo hiu ti cc phn s dng khccng loi. TUP: Phn ngi s dng in thoi DUP: Phn ngi s dng s liu MTUP: Phn ngi s dng in thoi di ng. ISUP: Phn ngi s dng mng ISDN
GV:Nguy
n
ThThu
Hng
2008
V d SS7 cho ISDN
SETUP
PBX TE PBXTLE
mng c quan
ser IAM IAM SETUP
OLE
CPCP
ALERTING
ALERTING
B.H knh D
ACM ACM
b o hiu theo bn tin b. hiu (lkdl bhiu)CONNECT
ANM ANM
CONNECTCONNECT ACK
CONNECT ACK
Trao i cc bn tin ISUP cung cp thm dv technology (b.h ngoi bng)
DISCONNECT REL REL DISCONNECT
DISCONNECT ACK
RLC RLC
DISCONNECT ACK
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThuH
ng
2008
Mng stch hp a dch v
(ISDN) Mng stch hp a dch v (ISDN)
Tin xy dng mng ISDN Cu hnh tham chiu Cc loi knh v giao tip trong ISDN
GV:Nguy
n
ThThuH
ng
2008
PSTN c nhiu nhc im truy cp Analog trn mch vng thu bao (cp ng)
khng linh hot trong vic s dng knh.
TBC ang pht trin theo hng s ho V chuyn giao s: hiu sut PSTN khng cao
Mt my fax nhm 3 (G3) chim mt knh 64 kb/s (thoi
s) nhng chtruyn c hnh nh vi tc 14,4 kb/s truyn d liu cn 16kb/s vn chim mt ng 64kb/s
Khi nim
GV:Nguy
n
ThThu
Hng
2008
Nhc im khc ca PSTN: C ly t TBC ti LE < 7km Nu ko di c ly m p dng cc mch in tkhuch i tn hiu th y l mt vn nan gii
v kinh t, k thut v s hn ch tc v chtlng
do vy phi tip tc s ho phn truy cpv mng mi ISDN ra i.
Khi nim
GV:Nguy
n
ThThu
Hng
2008
ISDN ISDN: ISDN theo
nh ngha ca ITU-Tl mt mng to ra
kt ni hon ton s t thit b u cuiny n TBC khc cung cp cc d chv thoi v phi thoiqua mt giao di nnc chu n ho quc t.
Tng i
Tng i Tng i
S
Telephone Chuynmch s
S S
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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20
GV:Nguy
n
ThThuH
ng
2008
ISDN
GV:Nguy
n
ThThuH
ng
2008
CPE
TE2
TE2
TA
NT2 NT1
S
R
T
LEU
quc gia
Subscriber line
Cu hnh mng N-ISDN
GV:Nguy
n
ThThu
Hng
2008
Cu hnh mng ISDN
GV:Nguy
n
ThThu
Hng
2008
Cu hnh mng ISDN
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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21
GV:Nguy
n
ThThuH
ng
2008
Knh trong ISDN
GV:Nguy
n
ThThuH
ng
2008
ISDN : PRI
7
6
5
4
3
2
1 1
7
6
5
4
3
2
1
TE1
NT1
LE
X l lp 1
M hnh tham chiu trnknh B
GV:Nguy
n
ThThu
Hng
2008
Bo hiu knh D - ISDN
Flag Address Control Information FCS Flag
01111110 01111110B1 16 bit, B2 16 bit, D 4 bitTng 36bit
B1 (8) D(1) B2 (8) D(1) B1 (8) D(1) B2 (8) D(1)
GV:Nguy
n
ThThu
Hng
2008
ISDN:
giao din trungtmmng
8/14/2019 Ni Dung hc Phn Mng Vin Thng
22/59
22
GV:Nguy
n
ThThu
Hng
2008
Mng in thoi sdng Chuyn mch knh Chuyn khung Chuyn gi
Phn bit 2 khi nim Hng kt ni (connection oriented) Phi kt ni (connectionless)
n tp
GV:Nguy
n
ThThu
Hng
2008
V sao cn c bo hiu trong mng inthoi?
C nhng loi bo hiu no? Phn bit cc khi nim
Bo hiu thu bao, bo hiu lin i Bo hiu knh chung, bo hiu knh ring/knh
kt hp
n tp
GV:Nguy
n
ThThu
Hng
2008
Bo hiu s 7 c my mc (level)?
Bo hiu s 7 dng cho mng v dch v
no? V sao gi bo hiu s 7 l bo hiu knh
chung?
Bo hiu s 7 l knh hay gi?
So snh u im ca C7 so vi R2 vphn tch (v sao C7 li c u im ni
tri nhvy).
n tp
GV:Nguy
n
ThThu
Hng
2008
Ti liu tham kho
Telecommunications NetworkNTT- 1996
Uyless Black: ISDN& SS7 Architectures ForDigital Signaling Network.Prentice Hall, 1997
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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23
Chng 3:
Cc mng chuyn gi
GV:Nguy
n
ThThu
Hng
2008
Cc cng ngh chuyn mch gi Cng ngh Frame Relay
Kin trc giao thc FR Khun dng khung Cc c im v ng dng ca FR
Cng nghATM Kin trc giao thc ATM Lp thch ng ATM Lp ATM Cc c im v ng dng ca ATM
Mng Internet M hnh OSI
Cc mng chuyn gi
GV:Nguy
n
ThThu
Hng
2008
Chuyn mch knh
Chuyn mch gi
GV:Nguy
n
ThThu
Hng
2008
Cng ngh Frame Relay Cng nghATM Cng ngh IP M hnh OSI
Cc cng ngh chuyn gi
8/14/2019 Ni Dung hc Phn Mng Vin Thng
24/59
24
GV:Nguy
n
ThThu
Hng
2008
Kin trc giao thc FR (chuyn tip khung) Khun dng khung Cc c im v ng dng ca FR
Cng ngh FR
Mch o
FRADFRND
FRAD: Frame Relay Access Device
FRND: Frame Relay Network DeviceGV:Nguy
n
ThThu
Hng
2008
Kin trc giao thc FR Khuyn ngh I.233 v I.122 v phng thc khung, dch
v mang (bearer service) Chdng lp 1 v lp 2 c n gin ha
Lp 1 c bn l lp vt l Lp 2 chs dng tin trnh kim t r a li n gin m bo
d liu c li s b loi b. Cc lp cao hn thit b ca ngi s dng chu trch nhim
cho vic truyn li d liu li/hng.
Cng ngh FR
GV:Nguy
n
ThThu
Hng
2008
LCN: Logical Channel Number: S chknh logic DLCI: Data Link Connection Identifier (nhn dng kt
ni lin kt d liu)
DLCL=16
DLCL=20
F FCS D liu a ch, v.v.. F
Khun dng khung FR
F: Flag FCS: Frame Check Sequence
DLCI
DLCI
GV:Nguy
n
ThThu
Hng
2008
Cc c im v ng dng ca FR K thut kt ni c lin k t (connection oriented) di khung (gi) thay i Tc cao t 2-50Mb/s Khng cn truyn li trn tng chng (chcn mc
u cui-u cui) Yu cu cht lng truyn dn tt (cp si quang) Chuyn tip khung (FR) phn ln c s dng ni
cc mng cc b LAN.
Cng ngh FR
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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25
GV:Nguy
n
ThThu
Hng
2008
Kin trc giao thc ATM Lp 1: Lp vt l Lp 2: Lp ATM Lp 3: Lp AAL
Lp thch ng ATM Lp ATM Cc c im v ng dng ca ATM
Cng nghATM
GV:Nguy
n
ThThu
Hng
2008
Cng nghATM
K n h1
K n h5
K n h1
C ellr n g
K n h1
K n h7
K n h1
K n h2
C ell
Ti Tiu
5 byte48 byte
GV:Nguy
n
ThThu
Hng
2008
Lp thch ng ATM cho php truyn ti cc dch v d liu v
dch v ng thi, thng tin phi c lmthch ng vi mng trong cc cch khc nhau.
ATM chia thnh 4 lp dch v (A, B, C, D)trn c s ca 3 tham s (ng b-tc bt-phng thc truyn ti).
Bn giao thc lp thch ng (AAL-1,2,3/4 v 5)c nh ngha cho mi loi
Cng nghATM
GV:Nguy
n
ThThu
Hng
2008
Cng nghATM
Lp thch ng ATM
Chuyn giaokhng lin kt
Chuyn giao c lin kt
Tc bt bin iTc btkhng i
Cc dch v khng ng bCc dch v ng b
AAL-3/4AAL-3/4
AAL-5
AAL-2AAL-1
Loi DLoi CLoi B(V d: Video)
Loi A(V d: thoi)
Tiu t bo
5 octet
Tiu t bo5 octet
AAL-1-5AAL-1-5
Cc trngthng tin cn li
44-47 octet
Cc trngthng tin cn li
44-47 octet
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
Hng
2008
Phn onv ghp nicc dch vbng rngkhc nhau
Cc dch vTc bit khng i Burst d liu Tc bit thay i
Phn on cc tboPhn on cc tbo
Ghp
GV:Nguy
n
ThThu
Hng
2008
Lp Vt l,lp ATM vlp AAL
Lp vt l
Lp ATM
Lp AAL
Dliu ngi sdng
ng gi dliu
Cc gi dliu c phn on (di 48 byte)
Cc t bo ATM(53 byte)
Cc t bo ATM trong khungSDH
GV:Nguy
n
ThThu
Hng
2008
Cc c im v ng dng ca ATM K thut theo kiu t bo vi di c nh S dng phng thc kt ni nh hng (connection-
oriented) cho truyn thng tin T bo ATM : gi c di c nh l 53 octet
5 byte tiu (header) 48 byte cn li dnh cho trng thng tin (d liu ngi s
dng)
Bng tn mm do Tc rt cao Ph hp vi mi dch v
Cng nghATM
GV:Nguy
n
ThThu
Hng
2008
B-ISDN (Broadband integrated services digitalnetwork): Mng s a dch v bng rng l khi nim phttrin hn so vi khi nim mng N-ISDN. Vo u thp k 80th k 20, ngi ta thy tng lai nhu cu cho cc dch v
cn nhiu bng thng hn so vi cc dch vc N-ISDNcung cp, ngha l bng thng cn vt qu 2 Mbit/s. Nu kt hp cc bng thng c nh cho vic iu khin dch
v vi nhng yu cu bng thng thay i th s khng hiuqu (v d l vic kt hp cc bng thng c nh 2Mbit/s v140Mbit/s).
ITU-T chn k/n ATM v kh nng linh hot trong tc bitca ATM lm k thut c s cho cc dch v B-ISDN.
Mng B-ISDN v ATM
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
Hng
2008
Cng ngh IP v Mng Internet
RARPARP
TCP
Data link
IP
UDP
DNS
Application
Transport
Network
Link
FTP TelnetSMTP NNTP
RIPIGMPICMP BGPOSPF
TFTPetc...
Media
(physical)
Ping RPCNFS BOOTP etc. ..
GV:Nguy
n
ThThu
Hng
2008
MngInternet
GV:Nguy
n
ThThu
Hng
2008
www: lu tr thng tin SNMP: Giao thc qun l mng n gin email: gi/son vn bn, gi km File transfer: chuyn, sao chp tp tin- FTP Remote Login: Ni mng/truy cp t xa H thng qun l tn min (DNS: Domain
Name System
Mng Internet: Cc dch v lp ngdng
GV:Nguy
n
ThThu
Hng
2008
7 ngng dngdng6 TrTrnhnh dindin
5 PhiPhinn4 GiaoGiao vvnn
3 MMngng
2 LiLinn ktkt DLDL
1 VVtt ll
M hnh OSI
V sao cn m hnh mngphn lp
Gim phc tp
Tiu chun ha giao din Thun tin module ha
m bo k thut lin mng
Tng nhanh spht trin(nhcu trc m)
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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GV:Nguy
n
ThThu
Hng
2008
MM hhnhnh OSIOSI
ChChcc nnngng ccaa cccc llpp
7 ngng dngdng6 TrTrnhnh dindin
5 PhiPhinn
4 GiaoGiao vvnn
3 MMngng
2 LiLinn ktkt DLDL
1 VVtt ll
X l d liu ngi s dng
M t biu din d liu
Thng tin gia cc trm
Kt ni u cui-u cui
nh a ch v nh tuyn
Truy nhp phng tin
Truyn di dng cc bit nh phnGV:Nguy
n
ThThu
Hng
2008
ThThngng tintin gigiaa ccc trc trmm
segments/messages
packets
frames
bits
7
6
5
4
3
2
1
ngng dngdngTrTrnhnh dindin
PhiPhinn
GiaoGiao vvnn
MMngng
LiLinn ktkt DLDL
VVtt ll
HOST A HOST B
Application
Presentation
Session
Transport
Network
Data Link
Physical
GV:Nguy
n
ThThu
Hng
2008
ngng gigi ddliliuu
Application
Presentation
Session
Transport
Network
Data Link
Physical
Application
Presentation
Session
Transport
Network
Data Link
Physical
DataApplicationHeader
DataPresentationHeader
Data
Session
Header
DataTransportHeader
DataNetworkHeader
0101101010110001
DataFrameHeader
GV:Nguy
n
ThThu
Hng
2008
M hnh OSI
Chc nngcc lp
trong mhnh
End-user application process
Distributed information services
File transfer, access and management,document and message interchange, job
transfer and manipulationApplication layer
Syntax-independent messageinterchange service
Dialog and synchronization control forapplication entities
Presentation layerTransfer syntax negotiation, datarepresentation transformations
Session layer
Network-independent messageinterchange service
Mechanical and electrical networkinterface definitions
Data link control (framing, datatransparency, error control)
Network routing, addressing, call set-up,and clearing
End-to-End message transfer (connectionmanagement, error control, fragmentation,
flow control) Transport layer
Network layer
Link layer
Physical layer
Physical connection to networktermination equipment
Data communication network
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GV:Nguy
n
ThThu
Hng
2008
M hnh OSI v TCP/IP
Lp ng dng
Lp trnh din
Lp phin
Lp vn chuyn
Lp mng
Lp lin kt dliu
Lp vt l
Lp ng dng
Lp vn chuyn
Lp Internet
Lp giao din mng
M hnh OSI M hnh TCP/IP
GV:Nguy
n
ThThu
Hng
2008
V d v lin mng
LAN LAN
APPLAPPL
TCPTCP
IPIP
TokenringTokenring
APPLAPPL
TCPTCP
IPIP
EthernetEthernet
IPIP
TokenringTokenring
X.25F.RATM
X.25F.RATM
IPIP
X.25F.RATM
X.25F.RATM
Ethe-rnetEthe-rnet
Mng ngtrc din rngng thu
ring Kt cu h tng da trnni kt c lin kt
nh tuyn nh tuyn
Ngi s dngNgi s dng
Cc gi IP
khng lin kt
B nh tuyn v/hoc chuynmch ph thuc voch truyn titch cc
GV:Nguy
n
ThThu
Hng
2008
Understanding TelecommunicationsW. Richard Steven. Published by Addison Wesley Longman, Inc, 1994
Telecommunications NetworkNTT- 1996
Internetworking vi TCP/IPNguyn Quc Cng. Nh xut bn gio d c, 2001
TCP/IP Protocol SuiteBehrouz A.Forouzan with Sophia Chung Fegan, 2000
http://www.iec.org/online/tutorials/
Ti liu tham kho
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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1
1
Mng vin thngChng 4: Mng IP
GV: Nguyn Th Thu HngBMMVT-Khoa vin thng 1- [email protected]
2008
6
Mng my tnh
10.0.0.2 10.0.0.3
16.0.0.3 16.0.0.5
12.0.0.5
10.0.0.1
Mng 1012.0.0.3 12.0.0.4
12.0.0.7
16.0.0.2
Mng 12
Mng 16
Host
Router
8
Mng IP
L thuyt B giao thc TCP/IP Lp ng dng Lp vn chuyn
Giao thc UDP Giao thc TCP
Lp lin mng Giao thc IP Cu trc gi tin IP
QoS trong mng IP
Minh ha hot ng ca mng IP
9
M hnh OSI v TCP/IP
Lp ng dng
Lp trnh din
Lp phin
Lp vn chuyn
Lp mng
Lp lin kt dliu
Lp vt l
Lp ng dng
Lp vn chuyn
Lp Internet
Lp giao din mng
M hnh OSI M hnh TCP/IP
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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10
B giao thc TCP/IP
TCP/IP c pht trin trc m hnh OSI cctng trong TCP/IP khng tng ng hon tonvi cc tng trong m hnh OSI
B giao thc TCP/IP c chia thnh bnlp/tng: Lp 4- Application layer (lp ng dng)
Lp 3- Transport layer (lp vn chuyn) Lp 2- Internet Layer (lp Internet i khi c gi
l lp lin mng) Lp 1- Network Access Layer/ Network Interface and
Hardware (lp truy nhp mng, i khi c gi l lpgiao din mng) 11
Cng ngh IP v Mng Internet
RARPARP
TCP
Data link
IP
UDP
DNS
Application
Transport
Network
Link
FTP TelnetSMTP NNTP
RIPIGMPICMP BGPOSPF
TFTPetc...
Media
(physical)
Ping RPCNFS BOOTP etc...
12
Hot ng c bn ca chng giao thc
EthernetDriver
Interface
implementation
InterfaceTCP
Port 25
EthernetDriver
SMTP SMTPFTP FTP
IP IP
TCP TCP
TCP
Port 25
TCP
Port 21
TCP
Port 21
13
Lp ny cung cp cc dch v di dng cc giaothc cho ng dng ca ngi dng. Mt s ngdng thng gp: FTP: y l mt dch v hng kt ni v tin cy, s dng TCP
cung cp truyn tp gia cc h thng h tr FTP. HTTP: Trao i cc ti liu siu vn bn h tr WEB. SMTP: Truyn th in t gia cc my tnh. www: lu tr thng tin email: gi/son vn bn, gi km SNMP: Giao thc qun l mng n gin. Telnet: Cho php cc phin ng nhp t xa gia cc my tnh. H thng qun l tn min (DNS: Domain Name System
Lp ng dng
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Dch v tn min DNS(domain name)
Dng thay a ch IP nh x gia a ch IP v tn min:
Tp host hoc DNS Cu to: ptit.edu.vn
ptit: Tn my ch edu: Tn min mc hai (Do t chc qun l mng quc gia quy nh) vn: Tn min mc cao nht (M quc gia; com; edu; net;int; org; mil; gov)
ROOT
COM EDU ORG NETVN
EDU COM EDU
INFOR
VNN
PTIT
15
World Wide Web
Dch v rt ph bin Biu din thng tin di dng siu vn bn Hot ng theo m hnh client/server
Internet
Trnh duytWeb
My chWeb
My chWeb
My chWeb
TrangWeb
16
Trnh duyt WEB
17
Th in t(Email)
Dch v ph bin nht
Nguyn tc lu v chuyn tip
Ngi dng cn c ti khon (account) th
Gi, nhn th: Outlook Express; Eudora
Thin t trn Web: yahoo.com; hotmail.com
Ngi gi
Internet
Ngi nhn
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Truyn tp
Cho php truyn tp (FTP)
Ngi dng cn ti khon FTP
Ngi dng
My ch tp
Tpftp tn min
hoc a ch IP
Internet
19
Lp vn chuyn (Transport layer)
Lp vn chuyn chu trch nhim chuynpht ton b thng bo ttin trnh ntin trnh (process-to-process).
Hai giao thc lp ny: TCP v UDP, migiao thc cung cp mt loi dch v giaovn: Hng kt ni Phi kt ni
20
Lp vn chuyn (Transport layer)
Giao thc UDP (User Datagram Protocol) UDP l mt giao thc truyn thng phi kt
ni v khng tin cy. UDP c trch nhim truyn cc thng bo t
tin trnh n tin trnh, nhng khng cungcp cc c chgim st v qun l.
UDP cng cung cp c chgn v qun lcc scng nh danh duy nht cho cc ngdng chy trn mt trm ca mng
21
Giao thc UDP
y chc nng iu khin lung v nghn ln lp ngdng
Khng c kh nng p ng nghn, nu gp nghn cth s gy sp mng (t mng)
Do t chc nng phc tp nn UDP thng c dngcho cc ng dng khng i hi tin cy cao tronggiao vn.
Source Port Destination Port
UDP Header
Segment length Checksum
8o
ctet
0 4 10 16 31
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22
Lp vn chuyn (Transport layer)
Giao thc TCP: Nhim v ca TCP Sp xp, m bo rng cc gi n ng thtpha thu Kim tra v sa li phn d liu ca ngi sdng iu khin lung gia cc my ch Phn on
23
Lp vn chuyn (Transport layer)
TCP c bn: Sau khi nhn c mt gi s gi tr vACK
gim bt s lng ACK (trnh lng ph bng thng ci bin giao thc sau khi nhn c mt slng gi nht nh, TCP s gi xc nhn.V d: nu chng ta pha nhn v s lng gi cquy nh l 3 th chng ta gi xc nhn cho pha gisau khi nhn c 3 gi.
u im ca vic lm ny l TCP c th iu chnh vicgi v nhn cc gi tin.V d: Hai ngi c ththo thun vi nhau v mtphin truyn thng. Ngi gi s bt u gi 4 gi, sau 8 gi, sau 16 gi v cnhvy cho ti khi nhnc xc nhn pha ngi nhn rng mt sgi bmt.
24
Lp vn chuyn
Source Port Destination Port
Sequence Number
Acknowledgement Number
TCP datagram
HeaderLength
unusedFlags Window
Checksum Urgent Pointer
Option Padding
Source Port Destination Port
UDP Header
Segment length Checksum
20
octet
8octet
0 4 10 16 31
Data (if any)
Data (if any)
Cu trc gi/datagram TCP v UDP
25
So snh ng dng 2 giao thc lpvn chuyn trong m hnh TCP/IP
phc tp cagiao thc
iu khin lungv nghn
Tr
Tin cy
UDPTCPc tnh
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26
Lp lin mng - Cu trc gi tin IPv4
source IP address
destination IP address
version hdr len type of service
identification fragment offset
time-to-live protocol header checksum
- -options (if any)
- -data (if any)
324 3 134 8
total length (bytes)
flags
La chn: tr ti thiu,thng lng ti a,tin cy ti a,ti thiu gi thnh..
Phin bn= 4
Thi giansng
di ti a headertnh theo t 32 bt
Ch gm phnheader
C nh duphn mnh
Khong ccht datagram
u tin
V d: nhtuyn c
bit..
Id cadatagram ban
u
Tng di(tnh theo
byte)
a ch IPngun
a ch IPch
27
Lp lin mng - a ch IPv4
Cha s dng (28 bt)1111Lp E
a ch multicast (28 bt)0111LpD
a ch trm(8 bt)
a ch mng011Lp C
a ch trm (16 bt)a ch mng01Lp B
a ch trm (24 bt)a ch mng0Lp A0 1 2 3 4 7 15 23 31
28
V d v nh tuyn
Mng10.0.0.0
Mng20.0.0.
Mng30.0.0.
Mng40.0.0.0
Q R S
10.0.0.5
20.0.0.5
20.0.0.6
30.0.0.6
30.0.0.7
40.0.0.7
30.0.0.740.0.0.0
20.0.0.510.0.0.0
Truyn trc tip30.0.0.0
Truyn trc tip20.0.0.0
nh tuyn ti a ch nyTi cc hosts trn mng
Bng nh tuyn ti R
29
Cc tham s QoS trong mng IP
Bng thng (bandwidth) Tr (delay)
Bin ng tr (jitter) T l mt gi (packet loss) kh dng ca mng (availability) bo mt (security)
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Nng lctruyn lan
Kh nngtruyn dn
Cht lng dch v(QoS)
Cht lng dch v
Kh nngtnh cc
kh dng
Mc tin cy
Kh nngbo dng
H trbo dng
Kh nng h
tr dch v
Kh nng khai
thc dch v
Mc an
ton dch v
Kh nng truy
nhp dch v
Kh nng duy
tr dch v
Mc hon
ho dch v
Kh nng phc v
Lp k hoch
Cung cp
Qun l
Ti nguyn vs thun tin
Kh nng x llu lng
Cht lng mng (NP)
tin cy
quangia QoS v NP
31
QoS trong mng IP
Nhng yu t nh hng n cht lngtrong mng IP
Tr truynlan
Tr truynlan
Xl v hngi
Xl v hngi
Truynlan
Truynlan
Xl vhng iXl vhng i
Truynlan
Truynlan
Truynlan
Truynlan
ng/m gi
M/nggi
Xl vhng iXl vhng i
32
Bng thng
L tc truyn thng tin cho mt phin truynthng (mt ng dng trn nn IP)/hoc l rng bng thng ca mt lin k t trong mng IP 64 kbit/giy, 384kb/s,
2 Mbit/giy, 100 Mb/s,
Bng thng thng tin ph thuc vo ngun githng tin v bng thng kh dng ca cctuyn ng.
33
Bng thng
Bi tp: La chn ng i vi 1 lung 5Mb/s vo nt 1 ra nt 4 n nt 6 2 lung 5Mb/s vo nt 1 ra nt 6 1 lung 7mb/s, 1 lung 5Mb/s vo nt 1 ra nt 6
1
2 3
4 5
6
5Mb/s
10Mb/s
10Mb/s
10Mb/s
5Mb/s 5Mb/s
5Mb/s
10Mb/s
5Mb/s
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8
34
Tr
Tr l thi gian truyn trung bnh ca dch v t imvo n im ra khi mng. C nhiu dch v - c bitl cc dch v thi gian thc nhtruyn thng thoi- bnh hng rt ln bi tr qu ln v khng cn thit
Truyn thng tng tc s tr thnh kh khn khi trvt qu ngng 150 ms v khi tr vt qu 200 ms,ngi sdng s thy sngt qung v nh gi chtlng thoi mc thp. cp c thoi cht lng
cao, mng VoIP phi c kh nng m bo tr nh.Khuyn ngh ITU-T G.114 gii hn thi gian tr vng tia chp nhn c l 300 ms gia hai gateway VoIP(tr mi chiu l 150ms)
35
Tr trong m ha VoIP
20ms5ms30ms5,3 Kb/sMP-ACELP,
G.723.1
20ms5ms30ms6,3 Kb/sMP-MLQ,
G.723.1
10ms2,5ms10ms8 Kb/sCS-ACELP,
G.729A
10ms2,5ms10ms32 Kb/sADPCM,
G.726
Tr ca bm ha
trong
trnghp ti
nht
Tr ca bm ha
trong
trnghp tt
nht
Khi muyu cu
Tc B m ha
36 38
Thnh phn gy tr trong mng
Tr x l Tr hng i Tr lan truyn
Tr truyn lan(P1)
Tr truyn lan(P1)
Tr xl v hngi (Q1)
Tr xl v hngi (Q1)
Tr truyn lan(P2)
Tr truyn lan(P2)
Tr xl v hngi (Q2)
Tr xl v hngi (Q2)
Tr truyn lan(P3)
Tr truyn lan(P3)
Tr xl v hngi (Q3)
Tr xl v hngi (Q3)
Tr truyn lan(P4)
Tr truyn lan(P4)
Trng/m gi
Tr m/nggi
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Tr (delay)
Bi tp v tnh trVoIP S lng nt trung gian: 5 M ha G.723.1
Tr x l trung bnh 2ms Tr hng i trung bnh 2ms Khong cch: 1000Km
Tr truyn lan(P1)
Tr truyn lan(P1)
Tr xl v hngi (Q1)
Tr xl v hngi (Q1)
Tr truyn lan(P2)
Tr truyn lan(P2)
Tr xl v hngi (Q2)
Tr xl v hngi (Q2)
Tr truyn lan(P3)
Tr truyn lan(P3)
Tr xl v hngi (Q3)
Tr xl v hngi (Q3)
Tr truyn lan(P4)
Tr truyn lan(P4)
Trng/m gi
Tr m/nggi
40
Bin ng tr
Bin ng tr l skhc bit v tr ca cc gi khc nhaucng trong mt dng lu lng
Bin ng tr c tn scao c gi l jitter trong khi binng tr c tn sthp c gi l wander
Jitter ch yu do ssai khc v thi gian xp hng ca ccgi lin tip trong mt lung gy ra v l vn quan trngnht ca QoS
Jitter qu nhiu c th c xl bng b m, song n lilm tng tr nn li ny sinh cc kh khn khc. Vi cc ccu loi b thng minh, cc h thng IP Telephony/VoIP sc ng b lung thng tin bng cch loi b gi theo kiuchn la, nhm trnh hin tng walkie-talkie gy ra khihai pha hi thoi c tr ng k
42
Tn tht gi
Tn tht, hoc l bit hoc l gi, c nh hngln vi dch v IP Trong khi truyn thoi, vic mt nhiu bit hoc gi
ca dng tin c th to ra hin tng nhy (pop)thoi gy kh chu cho ngi s dng
Trong truyn d liu, vic mt mt bit hay nhiugi c th to gy hin tng khng u trn mnhnh nht thi song hnh nh (video) s nhanhchng c x l nhtrc
Tuy nhin, nu vic mt gi xy ra theo dy chuyn,th cht lng ca ton b vic truyn dn sxung cp
43
L t phn thi gian mng hot ng trn tng thi gian. Giihn thng thng cho mng thoi l 99,999% (nm conchn) hoc l khong 5,25 pht khng hot ng trong 1nm. kh dng t c thng qua skt hp ca tincy thit b vi kh nng sng ca mng. kh dng lmt tnh ton xc sut khng ch tnh n ginbng cc tng hpcc con s
kh dng
A
B C
D
E F
85%
90%
70%
70%
75% 75%
95%
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10
44
kh dng
5,25 pht99,999%
26,28 pht99,995%
52,56 pht99,99%
4,38 gi99,95%
8,76 gi99,9%
1,825 ngy99,5%
3,65 ngy99%
Tng thi gian ngng hotng trong mt nm
Tnh sn sng camng
45
bo mt
bo mt (security) lin quan ti tnh ringt, stin cy v xc nhn khch v ch.
Cc vn lin quan n bo mt thng cgn vi mt vi hnh thc ca phng php mtm (m ha v gii m) ca c pha mng vthit b u cui pha ngi sdng.
C ththc hin mt phn bo mt qua
firewall, xc nhn ID v password, nhn thc
46
Cc phng php ci thin QoStrong mng IP
Do c im ca loi hnh dch v lu lngthoi IP cn c h tr cc bin php tngcng mc QoS m bo vic tha mncho cc yu cu tpha ngi sdng. C
nhiu phng php h tr cht lng dch vtrong mng IP Hu ht cc m ngc tri n khai v i vi m c
QoS lp 3, htrcc loi dch vsau: Xc tin hng i cho cc khung iu khin m bo hng i cho lu lng VoIP N lc ti a cho tt c cc lu lng dliu khc
47
Cc phng php ci thin QoStrong mng IP (cont.)
Cc bin php tphangi sdng tng cng thng
minh ca cc thit b ucui
sdng dch v vonhng thi im hp l
Tr truyn lan(P1)
Tr truyn lan(P1)
Tr xl v hngi (Q1)
Tr xl v hngi (Q1)
Tr truyn lan(P2)
Tr truyn lan(P2)
Tr xl v hngi (Q2)
Tr xl v hngi (Q2)
Tr truyn lan(P3)
Tr truyn lan(P3)
Tr xl v hngi (Q3)
Tr xl v hngi (Q3)
Tr truyn lan(P4)
Tr truyn lan(P4)
Trng/m gi
Tr m/nggi
Cc bin php tpha mng Tc truy nhp cam kt Xp hng trn c s lp Lp dch v Cc dch v phn bit Quyn u tin IP Chuyn mch nhn a giao thc
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48
c
Mng Core
Phn lpcc dch v
Lp chnh schcho lu lng
nh dugi tin
Sp xphng i
Kim sot bngn lu lng
Router1 Router2
5
Cc phng php ci thin QoStrong mng IP (cont.)
49
Cc phng php ci thin QoStrong mng IP (cont.)
Cc bin php tpha mng (cont.) Xp hng theo VC nh tuyn theo chnh sch Cc hng QoS
Loi b sm ngu nhin Giao thc dtrti nguyn Kiu dch v nh hnh lu lng Xp hng hp l theo trng s
50
Kin trc hng i trong router
Hng i
Hng i
Hng i
Phn loi gitin da trntrng TOS,DS, TC trong
header
X l gi tin davo cc k thutqun l Queue
.
.
.
n
1
51
Mt s cch thc x l hng i
1.Hngi FIFO
Cc gi
n trcc x ltrc
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12
52
2.Hngi PQ
High
Medium
Normal
low
Phn
loi
Phn
loi githeo u tin
Lp lchtheo u tinca gi
53
1. Lp truyn ti nmu trong b giao thcTCP/IP (suite)?
Lp vt l
Lp mng
Lp vn chuyn
Lpng dng
2. TCP/UDP nm trong l p no trong m hnh
phn lp TCP/IP Lp vt l
Lp mng
Lp vn chuyn
Lpng dng
Cu hi tho lun
54
3.1. uim ca UDP so vi TCP l Tin cy hn C kh nngiu khi n lung n gin hn
3.2. uim ca TCP so vi UDP l n gin hn Nhanh hn Tin cy hn
Cu hi tho lun
55
4. Tiu gi IPv4 c kch thc la) 8 byte b) 20 byte
c) 64 byte d) C th thayi 5. Tiu UDP c kch thc l
a) 8 byte b) 20 bytec) 64 byte d) C th thayi
6. Tiu UDP c kch thc la) 8 byte b) 20 byte
c) 64 byte d) C th thayi 7. M hnh TCP/IP thng c my lp?
a) 3 lp b) 4 l pc) 5 lp d) 7 l p
nh gi
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13
56
8.1a ch203.164.0.11 la cha) L p A b) Lp Bc) L p C d) Multicast
8.2. a ch10.12.0.11 la cha) L p A b) Lp Bc) L p C d) Multicast
8.3. a ch224.164.0.11 la cha) L p A b) Lp B
c) L p C d) Multicast 8.4. a ch162.164.0.11 la ch
a) L p A b) Lp Bc) L p C d) Multicast
nh gi
57
9.1 Nu gim kch thc ca s TCPi mt na, gisRTT l c nh th b ng thngtc cho d chvsdng TCP s: Ginguyn nhc Tng gpi Gim mt na
9.2 Nu tng RTT ln gpi, gi skch thc cas TCP l c nh th b ng thngtc cho d ch
vsdng TCP s: Ginguyn nhc Tng gpi Gim mt na
Cu hi tho lun
58
10.1 Giao thc no n m trong lp vn chuyn trongm hnh TCP/IP? TCP, UDP
FTP, UDP
UDP, SMTP
SMTP, DNS
10.2 Giao thc no n m trong lpng dng trongm hnh TCP/IP: FTP, UDP
TCP, UDP
SMTP, DNS
UDP, SMTP
Cu hi tho lun
59
Internetworking vi TCP/IPNguyn Quc Cng. Nh xut bn gio d c, 2001.
TCP/IP Protocol SuiteBehrouz A.Forouzan with Sophia Chung Fegan, 2000.
Mng my tnh v cc h thng mNguyn Thc Hi. NXB Gio Dc, 1997.
TCP/IP cn bnNguyn Xun Khnh. HVCNBCVT-TTTBCVT2, 11/2004.
Tham kho thmhttp://www.vnic.net.vn/tainguyen/domainname.htm
Ti liu tham kho
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3Nguy
nThThuHng2008
Chng 4: Mng IP
Gii thiu chung v VoIP
Thng 2 nm 1995 hng Vocaltec thc hintruyn thoi qua Internet, lc kt ni chgm mt PC c nhn vi cc trang thit bngoi vi thng thng nh card m thanh,headphone, mic, telephone line, speaker,modem phn mm ny thc hin nn tnhiu thoi v chuyn i thng tin thnh ccgi tin IP truyn dn qua mi trngInternet.
C rt nhiu chun cho truyn thoi trn nnIP nhng c hai chun c s dng rng rinht l H.323 ca ITU v SIP ca IETF
4Nguy
nThThuHng2008
Mng VoIP
u nhc im Gim cc ph dch v thoi ng di Nhiu cuc gi hn, gim rng bng
thng cho mi kt ni H tr thm nhiu dch v b sung khc
v gip trin khai cc dch v mi nhanhchng, d dng, t ng dch v, phthin trng thi, qun l thng tin, m hobo mt..
S dng c hiu qu nht giao thc IP:Tn dng u t, thit b sn c vi nhiu hnh mng v cung cp dch v
5Nguy
nThThuHng2008
Mng VoIP: Cc gii php m ha
ting ni
M ho dng sng; M ho ngun; M ho lai
2,525,6kb/s16(20ms)
0,7783,5kb/s4(5ms)5,36,3
G.723.1A-CELPMP-MLP
2,3227,6kb/s20(20ms)
0,7486,4kb/s5(5ms)8
G.729(CS-ACELP)
1835,6kb/s40(20ms)
0,6894,4kb/s10(5ms)16
G.728(LD-CELP)
1,2451,6kb/s80(20ms)
0,58110,4kb/s20(5ms)40/32/24G.726/G.727
0,7783,6kb/s160(20ms)
0,45142,4kb/s40(5ms)64(no compression)
G.711(PCM)
Compression gain(relative toPCM/STM)
Bandwidth(including overheads)
Packet size(bytes)
Peak rate (kb/s)Codec
6Nguy
nThThuHng2008
Mng VoIP: Cc giao thc v bo hiu
Chun H.323 cung cp nn tng cho vic truyn thngthoi, video v d liu qua cc mng da trn IP, baogm c Internet. H.323 l khuyn ngh ca ITU nia ra cc chun truyn thng a phng tin trn ccmng LANs, cc mng ny khng m bo cht lngdch v (QoS).
SIP (Session Initiation Protocol) l mt giao thc iukhin tng ng dng c th thit lp, duy tr v giiphng cc cuc gi hoc cc phin truyn thng. Ccphin truyn thng c th l in thoi hi ngh, hc txa, in thoi Internet v cc ng dng tng t khc.
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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7Nguy
nThThuHn
g2008
Mng VoIP: H.323
8Nguy
nThThuHn
g2008 Ngn xp
giao thcVoIP-H.323
9Nguy
nThThuHng2008
Mng VoIP-H.323
Audio
In/Out
MAudio Chuyn ti Chuyn i
IP
iu khin
h thng
Mng IP
(Internet)
Chc n ng ca H.323
10Nguy
nThThuHng2008
Mng VoIP-H.323
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11Nguy
nThThuHn
g2008
Mng VoIP - SIP
SIP l mt giao thc chun do IETF a ranhm mc ch thc hin mt h thng c khnng truyn qua mi trng mng IP.
SIP da trn tng ca SMTP v HTTP. Nc nh ngha nhmt client-server trong cc yu cu c bn gi (bn client) a rav bn b gi (server) tr li nhm p ngyu cu ca bn gi.
SIP s dng mt s kiu bn tin v trngmo u ging HTTP, xc nh ni dung thngtin theo mo u c th ging nh giao thcc s dng trn Web.
Assigned RFC 2543 vo thng 3/1999
12Nguy
nThThuHn
g2008
Mng VoIP - SIP
SIP h tr 5 dch v trong vic thit lp v k tthc cc phin truyn thng: nh v ngi dng: Xc nh v tr ca ngi
dng tin hnh hi thoi. Nng lc ngi dng: Xc nh cc phng
thc (phng tin) v cc tham s tngng trong hi thoi.
Xc nh nhng ngi sn sng tham gia hithoi.
Thit lp cc tham s cn thit cho cuc gi. iu khin cuc gi: Bao gm c qu trnh
truyn v k t thc cuc gi.
13Nguy
nThThuHng2008
Mng VoIP - SIP
Proxy
Server
SIP Terminal(SIP phones)
SIP Servers SIP Gateways
User AgentProxy
Server
Gateway
VoIP (H.323)
ISDN
PSTN
LocationServer
RedirectServer
RegistralServer
14Nguy
nThThuHng2008
Mng VoIP SIPM hnh tham chiu
Other
services
eg.
PINT
initialISDN
phonecall
Data
services
eg. using
RTSP
TCP
IP
UDP
SIP-extensions SIPheader
Methods Message body:SDP, PINT
Audio
RTP
Video
Application and System control
Call
transfer
C
allhold
...
ntance
mes
sageand
r
esence
...
AV I/Oequipment
8/14/2019 Ni Dung hc Phn Mng Vin Thng
46/59
15Nguy
nThThuHn
g2008
Mng VoIP - SIP
V c bn cc bn tin SIP c chia lm hailoi:
bn tin yu cu (Request)
bn tin p ng (Respond) C hai loi bn tin ny u s dng chung mtnh dng c bn c quy nh trong RFC
2822 vi cu trc gm mt dng khi u(start-line), mt s trng tiu v mt phnthn bn tin tu chn.
16Nguy
nThThuHn
g2008
Mng VoIP - SIP
Cu trc ny c tm tt nhsau:generic-message = start-line*message-headerCRLF[ message-body ]
Vi start-line = Request-Line / Status-Line Message-header = (general-header/Request-
header/Respone-header/entity-header) Trong , dng khi u, cc dng tiu hay dng
trng phi c kt thc bng mt k t dng trng,xung dng (CRLF) v phi lu rng dng trng vnphi c ngn cch phn tiu v thn ca bn tinngay c khi phn thn bn tin l rng.
17Nguy
nThThuHng2008
SIP- C chhot ng
Media Path
CallSetup
Call
Teardown
User Agent Location/Redirect Server
302: Moved Temporarily
Proxy Server
INVITE
Proxy Server User Age
INVITE
302
ACK
INVITE
INVITE
302
ACK
INVITE180 (Ringing)
200 (OK) 200 (OK) 200 (OK)
180 (Ringing)180 (Ringing)
RTP Media Path
200 (OK) 200 (OK) 200 (OK)
BYE BYE BYE
19Nguy
nThThuHng2008
4.5.3Cc loi hnh dch v thoi qua IP
Phone to Phone (my t ti my t quamng trung gian IP) PC to Phone (my tnh ti my t)
PC to PC (my tnh ti my tnh: c thkt ni trc tip qua mng IP hoc cthgin tip qua mng khc)
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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20Nguy
nThThuHn
g2008
Phone to Phone (P2P)
PSTN PSTNIP network
Gateway Gateway
PSTN
21Nguy
nThThuHn
g2008
PC to Phone
PSTNIP networkPC
Gateway
IP phone
22Nguy
nThThuHng2008
PC to PC
IP network 3G phone
3G phone
IP phone IP phone
23Nguy
nThThuHng2008
4.5.3Cc loi hnh dch v thoi qua IP
Trin khai cc dch vVoIP ca VNPT Gi 171 (Phone 2 Phone, cc dch v ca doanh
nghip khc nh178-Viettel, 177-Sfone, 179-EVN) Gi 1717: th tr trc cho cuc gi ng di
trong nc v quc t Gi 1719: th tr trc cho cuc gi ng di
trong nc v quc t, c thgn ti khon cnh vo thu bao
Fone VNN: PC2PC v PC2Phone
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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24
Chng 5:Xu hng pht trin mngvin thng v dch vTrends in Telecommunications Networks and
Services Development
Nguyn Th Thu HngBMMVT-PTIT
25Nguy
nThThuHn
g2008
Ni dung chnh
Shi t cac c mn gvdch vvin thng
Mng th h sau NGN Cng ngh mng ring o (VPN) Cc cng ngh mng khng dy v
di ng
27Nguy
nThThuHng2008
Dn s: 85 triu (2007)> 70% dn s ngoi thnhS thu bao in thoi : >40 tr.S ngi sdng Internet > 16 tr.~1,2 triu thu bao ADSL (12/2007)
Vin thng Vit Nam
Vit Nam, giai on hin nay l giaion chuyn dch gia cng ngh th h c(chuyn mch knh) dn cng ngh thh mi (chuyn mch gi) din ra trong h tng csthng tin trong cc cng ty khai thc dch v trong cch tip cn ca cc nh khai
thc mi khi cung cp dch v chokhch hng
30Nguy
nThThuHng2008
S ngi s dng Internet Vit Nam
Theo s thu bao quy i
8/14/2019 Ni Dung hc Phn Mng Vin Thng
49/59
31Nguy
nThThuHn
g2008
S ngi s dng Internet Vit Nam
Theo s ngi sdng
33Nguy
nThThuHn
g2008
Xu hng pht trin CNTT vin thng trn th
gii v nh hng i vi cu trc mng vin thng
Xu hng pht trin cng ngh in t - tinhc-vin thng Cng ngh in tvi x u hng pht trin hng
ti stch hp ngy cng cao ca cc vi mch
Spht trin ca k thut s
Skt hp gia truyn thng v tin hc, cc phnmm hot ng ngy cng hiu qu
Cng ngh quang lm tng kh nng tc v
cht lng truyn tin, chi ph thp ...
34Nguy
nThThuHng2008
Cc xu hng pht trin trongcng ngh mng [ITU TSB]
CO = Hot ng kt ni nh hngCL = Hot ng khng kt ni
= Song hng
Cnh tranh viCO
IPCL
CO
ATM
PSTN/ISDN
Mi trng vin thng
QoS khng c mbo
QoS c m bo QoS cao
35Nguy
nThThuHng2008
Xu hng pht trin cng ngh vin thng:
Cng ngh truyn dn: Cng ngh quangquang ha
Cng ngh chuyn mch: tch hp vi mch, k
thut s, ATM: kt hp knh+gi, a dch v,a tc , chuyn mch quang
Cng ngh truy nhp: Kt hp truyn thng vtin hc: c cc kiu truy nhp nh quang, cpng (ADSL, HDSL ), v tuyn
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50/59
8/14/2019 Ni Dung hc Phn Mng Vin Thng
51/59
41Nguy
nThThuHn
g2008
Mt s dch v chnh trong mng NGN
Dch v thoi Dch vdliu
Dch v aphng tin
Mngring o
Tnh tonmng cng
cng
Dch vchuyn cuc
gi
Tr chitng tc
Thc t ophn tn
Qun lti nh
Bn tinhp nht
Mi giithng tin
Thng miin t
42Nguy
nThThuHn
g2008
5.2 Mng th h sau NGN
ng lc pht trin Cu trc v c im Mng NGN ca Vit Nam
43Nguy
nThThuHng2008
5.2 Mng th h sau NGN
Khi nim: Mng vin thng thhsau l mt mng c htng thng tin duy nht da trn cng ngh gic thtrin khai nhanh chng cc loi hnh dch v khc nhauda trn shi t gia thoi v sliu, gia c nh v di
ng Mng NGN c th c m t l mng thc hin ddng ba
vn sau: Truy nhp c lp ti ni dung (content) v ng dng
kh dng cao, mng li v mng truy nhp c bng thng ln, htr a dch v
L mt bng cho php pht trin v trin khai nhanh chng cc ngdng tch hp vo ngi sdngu cui
44Nguy
nThThuHng2008
5.2 Mng th h sau NGNc im mng NGN
Xy dng trn nn tng h thng m
Cc dch v c lp vi mng
Mng NGN l mng chuyn mch gi
Mng NGN c dung lng ngy cngtng
8/14/2019 Ni Dung hc Phn Mng Vin Thng
52/59
45Nguy
nThThuHng2008
Cu trc phn lp mng NGN
(phn lp chc nng)
Lp
qun
l
Lp truyn thng
Lp truy nhp v truyn dn
Lp ng dng
Lp iu khin
46Nguy
nThThuHng2008
Cu trc vt l mng NGN
49Nguy
nThThuHng2008
Cc tchc quc tvi vic xy dng mhnh cu trc mng thhsau NGN
Mng th h sau l vn thu ht s quan tm ca nhiu t chc vinthng, in hnh l hot ng ca cc t chc vin thng sau y :
ITU-T cc nhm SG16, SG11, SG13, SG2, SG8
IETF vi cc nhm PINT WG, MMUSIC WG, IPTEL, SIGTRAN WG
MSF ( Multiservice Switching Forum Din n chuyn mch a dchv)
ETSI vi d n TIPHONE (Telecom & Internet ProtocolHarmonization over Network Giao thc vin thng v Internet trnmng)
ATM Forum (Din n ATM)
ISC (International Softwitch Consortium T chc quc t nghin cuv chuyn mch mm)
TINA (Telecom. Information Networking Architecture Consortium Hip hi nghin cu cu trc mng thng tin vin thng)
AMF (Asian Multimedia Forum - Din n chu v a phng tin)
S56N
guy
nThThuHng2008
Mt sm hnh cu trc mng NGN v gii php
mng ca mt snh cung cp dch v vin thng
M HNH NGN CA ALCATEL :
Alcatel a ra m hnh mng th h sau vi c c lp :
Ccdch vmng
c lpThit b mngc
Lp iu khin
Lp dch v mng
Lp truy nhp v truyn ti
Dch v/b o hiumng c
Truy nhp txa
Lp trung gian
Khch hngNgi s dng
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57Nguy
nThThuHng2008
Cc thnh phnca mng th h
sau (M hnhca Alcatel)
AGW : Cngtruy nhp,CSW : Chuyn mch chnh,LAD : Thitb truynhp tchhp,MGC : B iukhin cng
thitb,
MSW : Chuynmch thit b,NGDLC/DSLAM :
RC : B iukhinnhtuyn
SEN : Nt thc hindchv,SGW : Cng bohiu,TGW : Cng trungk,WGW: Cngv tuyn.
Ccdch vmng
clp
DCS
Lptruy nhp/truynti
ADM
SS7, ISDN, B-ISDN,
RADIUS,
Thit b mngthak
To/qun l/mng/dch v
MGC
Lpiu khin
RCSGW
Lpdchv
mngSEN
Dchv/bo hiumng tha k
Khch hng
IAD
NGDLC/
DSLAM
ADSL
ADSL/TR-057
IP/ATM GR-303/
TR-008
IP/
ATM
Mng truynhp
Truynhp vtuyn3G
Truy nhpv tuyn
IS41/GR-303
Truynhp tchhp
PPP/ATM/FR
Trungk TDM
SNMP,CMIP,
TGW
DGWMSW
AGW CSW
WGWLp
thit b
IP, SS7, MSF,MGCP
58Nguy
nThThuHng2008
M hnh mng NGN ca Siemens
Gii php mng NGN ca Siemens da trn cutrc phn t n, xo i khong cch gia mng PSTNv mng s liu. Cc h thng a ra vn da trncu trc pht trin ca h thng chuyn mch mni ting ca Siemens l EWSD
Siemens gii thiu gii php mng th h mi c tnSURPASS
59Nguy
nThThuHng2008
Cu trc mng th h sau (m hnh ca Siemens)
Khaibov qunl dchv
Qun lktni Qun l
mngLp
iu
khin
Lp
truy
nhp
Lp
chuyn
ti
Truyn dn quang
Cng niPOTS,ISDN
IP,ATM,FR...CABLE
V tuyn
nh t uyn/ chuyn m ch nh t uyn/ chuyn m ch
Mng truynhp a dch v
PSTN/
ISDN
Ccmng hin c
DN
62Nguy
nThThuHng2008
5.2 Mng thh sau NGN
ng lc pht trin Cu trc v c im Mng NGN ca Vit Nam
T2002, VNPT phi hp vi hng Siemens(c) lp t thit b v thnghim mng NGN.
Thng 11-2003, VNPT lp t xong v a v o sdng pha 1 mng NGN, ch yu tp trung lp tmng core ca NGN.
nng cao nng lc mng li, VNPT u txydng pha 2 vo ngy 15-8-2004.
11/2006: Dn mrng VoIP pha 4
Hn ch ca PSTN v nhu cu Cu trc phn lp NGN
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63Nguy
nThThuHng2008
Hn ch ca PSTN v nhu cupht trin NGN
Cng nhc trong vic phn b bng thng Kh khn trong vic t hp mng Kh khn trong vic cung cp dch v mi u tcho mng PSTN ln Gii hn trong pht trin mng
Khng p ng c stng trngnhanh cac c dch v dliu
64Nguy
nThThuHng2008
Cu trc phn lp NGN
Lp ng dng/
dch v
Lp iu khin
Lp chuyn tidch v
Lp truynhpdch v
Thit b u cui
Giao tip chun
Giao tip chun
Thnh
phnNGN
Thnh
phn clin quan
n NGN
Mngli
Lpqun
l
65Nguy
nThThuHng2008
M hnh mng NGN ca Siemens
Gii php mng NGN ca Siemens da trncu trc phn tn, xo i khong cch giamng PSTN v mng s liu. Cc h thnga ra vn da trn cu trc pht trin ca
h thng chuyn mch m ni ting caSiemens l EWSD
Siemens gii thiu gii php mng th hmi c tn SURPASS
66Nguy
nThThuHng2008
Cu trc mng th h sau (m hnh ca Siemens)Khai bo v qun
ldch v
Qun lkt ni Qun l
mngLp
iu
khin
Lp
truynhp
Lp
chuyn
ti
Truyn dn quang
Cng niPOTS,ISDN
IP,ATM,FR...CABLE
V tuyn
nh tuyn/ chuynmch nh tuyn/ chuynmch
Mng truy nhp a dch v
PSTN/
ISDN
Cc mng hin c
DN
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67Nguy
nThThuH
ng2008
Cu trc mng th h sau (m hnh ca Siemens)
Phn chnh ca SURPASS l h thng SURPASS hiQ,y c th coi l h thng ch tp trung (centralizedserver) cho Lp iu khin ca mng vi chc nngnhmt h thng ca ng (gateway) mnh iukhin cc tnh nng thoi, kt hp kh nng bo hiumnh kt ni vi nhiu mng khc nhau. Trn hthng ny c khi chuyn i bo hiu bo hiu s 7ca mng PSTN/ISDN sang giao thc iu khin cang trung gian MGCP
Tu theo chc nng v dung lng, SURPASS hiQc chia thnh cc loi SURPASS hiQ 10, 20 hay
SURPASS hiQ 9100, 9200, 9400
68Nguy
nThThuH
ng2008
SURPASS hiG l h cc h thng ca ng trung gian(media gateway) t cc mng dch v cp di lnSURPASS hiQ, h thng nm bin mng ng trc,chu s qun l ca SURPASS hiQ. H ny c chc nng: Ca ng cho qun l truy cp t xa (RAS): chuyn i s liu t
modem hay ISDN thnh s liu IP v ngc li Ca ng cho VoIP: nhn lu lng thoi PSTN, nn, to gi v
chuyn ln mng IP v ngc li
Ca ng cho VoATM: nhn lu lng thoi PSTN, nn to gi vchuyn thnh cc t bo ATM, chuyn ln mng ATM v ngc
liSURPASS hiG c phn chia thnh nhiu loi theo chcnng v dung lng, t SURPASS hiG 500, 700, 1000 nSURPASS hiG 2000, 5000
Mng NGN ca Vit Nam
69Nguy
nThThuHng2008
SURPASS hiA l h thng truy nhp a dch v(Multi - Service Access) nm lp truy nhp caNGN, phc v cho truy nhp thoi, xDSL v ccdch v s liu trn mt nn duy nht. cung cpcc gii php truy nhp, SURPASS hiA c th kthp vi cc tng i PSTN EWSD hin c qua giaodin V5.2, cng nh cng vi SURPASS hiQ tonn mng th h mi. SURPASS hiA c phnchia thnh nhiu loi theo cc giao din h tr (htr thoi xDSL, truy nhp bng rng, leased - linekt ni Internet trc tip. Kt hp chc nng cang trung gian tch hp, gm c VolP/VoATM)thnh cc loi SURPASS hiA 7100, 7300, 7500
Mng NGN ca Vit Nam
70Nguy
nThThuHng2008
SURPASSNG Access
SURPASSNG Optics
SURPASSNG Switching
SURPASSNG Management
NGN Control
NGN Management
NGN Control
NGN Core
NGN Access
PSTN/Mobile Network
MediaGateways
Switc
Switc
Switc
MediaGateway
AccessGatewayMetro
Optics
IP/OpticalBackbone
Residential
Triple PlayVoice, Video,Data
Multi-ServiceAccess
Business
LA
PB
CP
SURPASShiQ
SURPASShiG
AccessIntegrator
TNMS
NetManager
SURPASS hiS
SURPASS hiXSURPASS hiT
SURPASShiG
Tn cc lp thit b trong h thng thit b NGN ca Siemens
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Dn mrng VoIP pha 4
8/14/2019 Ni Dung hc Phn Mng Vin Thng
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75Nguy
nThThuH
ng2008
Dn mrng VoIP pha 4
Nng cp softswitch ln hiE9200V3.2 Tng cng kh nng h tr cc c tnh ca cc
loi tng i : tng i transit, quc gia v quc t Cho VTN kh nng kt ni MEGACO/H.248 hay
MGCP
H tr giao din SIP kt ni ti cc SS khc vmin SIP khc.
hiG1200, hiG1100
hiQ4200 cho kt ni kinh doanh v thoingi sdng (fix and mobile network)
76Nguy
nThThuH
ng2008
77Nguy
nThThuHng2008
Dch v thoi VoIP tr trc 1719
Dch v thoi min ph 1800(Free Phone)
Dch v Thng tin gii tr 1900
(Premium rate service) Dch v mng ring oVirtual Private Network (VPN)
Dch v b o cuc gi t InternetCall Waiting Internet (CWI)
Dch v thoi qua trang Web (WDP)
Dch v thoi min ph t trang WEB(FCB)
Dchv cucgi thng mi min phComercial Free Call Service
CC DCH V DLIU
VoD (Video on Demand)
IPTV
TRUYN HNH HI NGH(Video Conferencing)
Dch v truy nhp INTERNET quaADSL
Gii thiu mt sdch v trn nn NGN ca VNPT
CC DCH VA PHNG TINCC DCH V THOI
78Nguy
nThThuHng2008
Dch v 17192.1. La chn ngnng2.2. Nhn dng s gi2.3. Nhn mc nhnPIN v kim tra(valid, blocked, in used, no credit)
2.4. Kt thcvic nhn dng thubaonghe thy m mi quay s
SURPASS
hiG 1000 V3T
SURPASS
hiG 1000 V3T
SURPASS
hiQ 9200
SURPASS
hiQ 9200
SURPASS
hiR 200
SURPASS
hiR 200
IP Core NetworkIP Core Network
MGCP
bearer
SS7
PSTN/ISDN
Switch
MGCP
bearer
SS7
Switch
PSTN/ ISDN
MGCP
2.Announcement&DTMFdialog
SURPASS
hiG 1000 V3T
SURPASS
hiG 1000 V3T
1719 xxxxDestination
1.Mtr
uynhp
dchvg
iquaSS7
4.Callset up
3. Quay sb gi B
3.Gis
bgi
B
1. 1719 L AnnouncementB number (PSTN routing)2. 1719 L Announcement
# B number (IP Routing)
1. 1719 L AnnouncementB number (PSTN routing)2. 1719 L Announcement
# B number (IP Routing)
Dch v
Dch v thoi min ph ttrang
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79Nguy
nThThuH
ng2008
1800/1900
80Nguy
nThThuH
ng2008
p gweb (Free Call Button)
HTTP(S)
SS7 ISUP
PSTN Network
hiG 1000 VxP PSTN Network
TIF
SS7 ISUP
PRI
TDM trunkTDM trunk
Web browserPC phone application
SwitchSwitch
H.323
Called/ Calling Party
hiQ 4000
FreecallButtonServer
IP Network
SIP/PINT+
Web serverof company
hiQ 30
LDAP
81Nguy
nThThuHng2008
Dch v hi ngh truyn hnh(Video Conferencing)
82Nguy
nThThuHng2008
Dch v hi ngh truyn hnh(Video Conferencing)
Dch v mng ring o MegaWAN(VPN)
8/14/2019 Ni Dung hc Phn Mng Vin Thng
59/59
83Nguy
nThThuHng2008
Dch v IPTV
Truyn hnh qua mng sdng giao thc IP
IP Network
Operator
Headend
TV via STB
Operator AccessNetwork
Live Media
On-Demand Media
84Nguy
nThThuHng2008
(VPN)
http://www.vtn.com.vn
85Nguy
nThThuHng2008
Dch v MegaVNN
86Nguy
nThThuHng2008
Tham kho[1]. Ti liu tp hun NGN - Nguyn Qu Minh Hin -
2003[2]. nh hng t chc mng vin thng ca VNPT
n 2010 TCT Bu chnh vin thng Vit Nam,H Ni, 08-2001, trang 1-20
[3] Thng tin v cc dch v trn nn NGN ca VNPT doVTN cung cp, http://www.vnpt.com.vn,http://www.vtn.com.vn
[4] http://www.siemens.com/surpass[5] nh ngha ca ITU-T v NGN:http://www.itu.int/ITU-
T/studygroups/com13/ngn2004/working_definition.html