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N MN H C 2
CHUYN MCH MM TRONG NGNGVHD SVTH MSSV : : : L ANH UYN V NGUYN THANH TON 0851040064
T NG QUAN V NGNNI DUNG
CHUY N M CH MM
1
Gii thiu tng quan v NGN
1.1
Mng vin thng th h trc. L do pht trin ln mng NGN. S lc NGN.
1.2 1.3
1.1
Mng vin thng th h trc
Mng vin thng trc y Telex, POST, Truyn s liu,Truyn hnh cp,LAN,
Hn ch Dch v c lp Thiu mm do Km hiu qu trong bo dng v vn hnh Kin trc tng i c quyn Tng i chuyn mch knh tr nn lc hu
1.2
L do pht trin ln mng NGN
Xu h ng pht tri n cng ngh m ng v d ch v . Hi v ng i v i NGN
1.2
S lc v NGN
Khi ni m NGN
Cu trc mng NGN
2
Chuyn mch mm (Softswitch)
2.1 cng ngh chuyn mch 2.2 2.3 2.4 2.5
Khi nim chuyn mch mm Vai tr ca Softswitch Thnh phn chnh trong Softswitch Cc giao thc dng trong Softswitch
2.1
Xu hng hi t cng ngh mng cng cngMng Internet(data)
Mng PSTN (thoi)
Truyn thng a phng tin tc cao
AMT/MPLS
Inser/Diffser
IP + OPTICAL GMPLS
2.2
Khi nim chuyn mch mm
tng v chuyn mch mm: kt hp u im chuyn mch knh v gi . Gii php: to ra mt thit b thc hin chuyn mch thoi c dng knh v gi cng vi tch hp phn mm x l cuc gi.
Thc hin: tch ring chc nng x l cuc gi ra khi chc nng chuyn mch vt l.
V tr ca chuyn mch mm
2.3
Vai tr ca softswitch
q - L thit b u no trong mng NGN. q - Lm nhim v iu khin cuc gi, bo hiu. q - SW iu khin cuc gi thng qua cc bo hiu, c 2 loi chnh:
+ Peer to peer + iu khin truyn thng
q q
M hnh tham chiu thc th chc nng NGN
2.4
Thnh phn chnh trong Softswitch
Kt ni MGC vi cc thnh phn khc ca NGN
Chc nng iu khin ca MGC
Chc nng chnh ca MGC iu khin, duy tr trng thi cuc goi trong MG . iu khin v h tr hot ng ca MG, SG. Trao i cc bn tin c bn gia hai MG-F X l bn tin SS7. X l bn tin lin quan QoS Pht hoc nhn bn tin bo hiu . nh tuyn . Tng tc vi AS-F . C th qun l cc ti nguyn mng (cng, bng tn) .
2.5
Cc giao thc trongMGC
thit lp cuc gi: H.323, SIP. iu khin Media Gateway: MGCP, MEGACO/ H.248 . truyn thng tin: RTP, RTCP. iu khin Signalling Gateway:
M hnh tham chiu ca NGNMS MS-FSIP/MGCP SIP/MGCP
AS AS-FSIP
ASENUM /TRIP
SIP/H.323
ENUM/TRIP
IW-F
MGC A-F
Mng SS7
SS7
SG SG-F
SS7
SPS-F R-F MGC-F
SIP/ H.323 SIP
MGC khc
CA-FSIGTRAN
MGCP/ Megaco TDM
SIP/MGCP /Megaco
MGCP/Megaco AG
PSTN
TG MG-F
RTP Proxy RTP /RTCP Truy nhp /RTCP RTP /RTCP
AGS-F
MG-F
Mng truy nhp
in thoi IP
THANKS FOR YOUR ATTENTION !!!