Zithunzi za OTN application

OTN ndi PTN
Ziyenera kunenedwa kuti OTN ndi PTN ndi matekinoloje awiri osiyana kotheratu, ndipo mwaukadaulo, ziyenera kunenedwa kuti palibe kulumikizana.
OTN ndi netiweki yamayendedwe owoneka bwino, yomwe idachokera kuukadaulo wamagawo achikhalidwe chawavelength.Iwo makamaka anawonjezera wanzeru kuwala kusintha ntchito.Ikhoza kuzindikira crossover ya kuwala kudzera mu kasinthidwe ka data popanda ma jumper a manual fiber.Kusasinthika ndi kusinthasintha kwa maukonde a zida za WDM kumakhala bwino kwambiri.Nthawi yomweyo, netiweki yatsopano ya OTN ikusintha pang'onopang'ono kukhala bandwidth yayikulu, tinthu tating'onoting'ono, komanso chitetezo champhamvu.

PTN ndi netiweki yapaketi yoyendera, yomwe idapangidwa chifukwa chophatikiza netiweki yamayendedwe ndi netiweki ya data.Protocol yayikulu ndi TMPLS, yomwe ili ndi magawo ochepa a IP komanso mapaketi apamwamba kuposa zida zama network.Ikhoza kuzindikira kulumikizidwa kwa mphete ndi chitetezo.Ndi netiweki yamtundu wonyamula (ma netiweki akale sangakwaniritse zofunikira za gulu laonyamula).Bandwidth yotumizira ya PTN ndi yaying'ono kuposa ya OTN.Nthawi zambiri, gulu lalikulu la bandwidth la PTN ndi 10G, OTN single wave ndi 10G, njira yamagulu imatha kufikira 400G-1600G, ndipo ukadaulo waposachedwa ukhoza kufikira single wave 40G.Ndiwo msana wa ma netiweki opatsirana.

OTN ndi SDH, WDM

OTN imachokera ku teknoloji ya WDM, mphamvu zamphamvu zogwirira ntchito, kukonza, kuyang'anira ndi ntchito (OAM) za SDH zimayambitsidwa pamaziko a mphamvu zazikulu zotumizira.OTN imagwiritsa ntchito FEC yokhazikika, yolemera pakukonza ndi kuyang'anira, ndipo ndiyoyenera kulumikiza mautumiki akuluakulu amtundu wa FEC kukonza zolakwika, zomwe zimathandizira kulakwitsa pang'ono ndikuwonjezera nthawi yotumizira mawonedwe.

Zithunzi za OTN application

The OTN-based intelligent optical network ipereka njira yabwino yoperekera ntchito zazikuluzikulu zamtundu wabroadband.Mayendedwe a mayendedwe amapangidwa makamaka ndi ma inter-provincial trunk transport network, intra-provincial trunk transport network, ndi netiweki yamayendedwe a metro (local).Netiweki yamayendedwe a metro (ya komweko) imatha kugawidwanso kukhala gawo lalikulu, gulu lophatikizira ndi gawo lofikira.Poyerekeza ndi SDH, mwayi waukulu waukadaulo wa OTN ndikupereka ndandanda ndi kufalitsa kwa bandwidth yayikulu ya granularity.Chifukwa chake, kugwiritsa ntchito ukadaulo wa OTN pamagawo osiyanasiyana amtaneti zimatengera kukula kwa ndandanda yayikulu ya bandwidth granularity.Malinga ndi momwe zinthu zilili pano pa intaneti, tinthu tating'ono ting'onoting'ono tomwe timapanga ma network a inter-provincial trunk transmission network, intra-provincial trunk transmission network ndi metro (local) transmission network ndi Gb/s and above.Ukadaulo wabwino wa OTN wopanga.
Pakuphatikizana ndi mwayi wofikira mumsewu wamtunda (wam'deralo) zoyendera, pomwe tinthu tating'onoting'ono tambiri tifika pamlingo wa Gb/s, ukadaulo wa OTN ungathenso kumangidwa mwamakonda.

1. National trunk optical transport network Ndi maukonde ozikidwa pa IP ndi mautumiki, kutukuka kwa mautumiki atsopano ndi kuchuluka kwachangu kwa ogwiritsa ntchito ma Broadband, kuchuluka kwa magalimoto pamtundu wa IP pamtundu wa dziko kukuchulukirachulukira, ndipo kufunikira kwa bandwidth kukukulirakulira chaka ndi chaka. .Mzere wamtundu wa WDM umanyamula mautumiki akutali a PSTN/2G, ntchito zakutali za NGN/3G, ndi ma intaneti amtundu wamtundu wa intaneti.Chifukwa cha kuchuluka kwa ntchito zonyamula katundu, mizere yayikulu ya WDM ikufunika mwachangu kutetezedwa kwa ntchito zonyamula.Pambuyo potengera ukadaulo wa OTN, njira yonyamula yamtundu wa IP pa OTN imatha kuzindikira chitetezo cha SNCP, chitetezo chamtundu wa SDH ngati mphete, chitetezo cha netiweki ya MESH ndi njira zina zotetezera maukonde.Zochepa kwambiri.

2. Intra-provincial/regional trunk optical transport network The intra-provincial/regional backbone routers amanyamula mautumiki pakati pa maofesi akutali (NGN/3G/IPTV/special line kwamakasitomala akuluakulu, etc.).Kupyolera mu ntchito yomanga ma provincial trunk OTN optical transmission network, kufalitsa kotetezeka komanso kodalirika kwa GE/10GE, 2.5G/10GPOS ntchito zazikuluzikulu za granularity zitha kuchitika;maukonde a mphete, maukonde a mphete zovuta, ndi maukonde a MESH atha kupangidwa;maukonde akhoza kukodzedwa pa zofuna;Zindikirani kuwongolera ndi kukonzekeretsa mautumiki a wavelength / sub-wavelength, ndikupereka mautumiki odzipatulira a wavelength / sub-wavelength kwa makasitomala akuluakulu;kuzindikiranso kufala kwa mautumiki ena monga STM-1/4/16/64SDH, ATM, FE, DVB, HDTV, ILIYONSE, ndi zina zotero.

3. Metro/local optical transport network Pakatikati pa netiweki ya metro, netiweki ya OTN Optical Transport network imatha kuzindikira ntchito zazikuluzikulu za burodibandi pakati pa metro aggregation rauta, netiweki yapafupi C4 (regional/county center) aggregation rauta ndi metropolitan. core router.kutumiza.Mawonekedwe okwera a rauta makamaka ndi GE/10GE, komanso mwina 2.5G/10GPOS.The OTN Optical transport network pa metro core l