OTN Maitiro ekushandisa

OTN uye PTN
Zvinofanira kutaurwa kuti OTN nePTN ndiwo maviri akasiyana tekinoroji, uye nehunyanzvi kutaura, zvinofanirwa kutaurwa kuti hapana kubatana.
OTN ndeye optical transport network, iyo yakagadziriswa kubva kune yechinyakare wavelength division tekinoroji.Iyo inonyanya kuwedzera iyo yakangwara optical switching basa.Inogona kuona optical crossover kuburikidza nekugadzirisa data pasina manual fiber jumpers.Iko kuchengetedza uye networking inoshanduka yeWDM michina inovandudzwa zvakanyanya.Panguva imwecheteyo, iyo itsva OTN network iri kushanduka zvishoma nezvishoma kuenda kune yakakura bandwidth, zvimedu zvakakura, uye kuchengetedzwa kwakasimba.

PTN ipakiti yekutakura network, inova chibereko chekubatanidzwa kweiyo network yekufambisa uye data network.Iyo huru protocol ndeye TMPLS, iyo ine mashoma IP akaturikidzana uye akawanda epamusoro mapaketi pane network zvishandiso.Inogona kuona mhete network uye kudzivirira.Iyo inotakura-kirasi data network (yechinyakare data network haigone kusangana neinotakura-kirasi zvinodiwa).Iyo yekufambisa bandwidth yePTN idiki pane iyo yeOTN.Kazhinji, iyo yakakura bandwidth yeboka rePTN i10G, OTN single wave i10G, nzira yeboka inogona kusvika 400G-1600G, uye tekinoroji yazvino inogona kusvika single wave 40G.Ndiyo musana weiyo network yekutumira.

OTN uye SDH, WDM

OTN yakavakirwa paWDM tekinoroji, iyo ine simba mashandiro, kugadzirisa, manejimendi uye basa (OAM) kugona kweSDH kunounzwa pahwaro hwehukuru hwekutapurirana simba.OTN inoshandisa yakamisikidzwa yakajairwa FEC, yakapfuma mukugadzirisa uye manejimendi pamusoro, uye inokodzera hombe-granularity sevhisi yekuwana FEC kukanganisa kururamisa coding, iyo inovandudza bit kukanganisa kuita uye inowedzera nguva yekufambisa kwemaziso.

OTN Maitiro ekushandisa

Iyo OTN-based intelligent Optical network ichapa mhinduro yakanaka yekufambiswa kwehombe-granularity Broadband masevhisi.Iyo network yekufambisa inonyanya kuumbwa neiyo inter-provincial trunk transport network, iyo intra-provincial trunk transport network, uye metro (yemunharaunda) yekufambisa network.Iyo metro (yemunharaunda) yekufambisa network inogona kukamurwazve kuita musimboti layer, aggregation layer uye yekupinda layer.Kuenzaniswa neSDH, mukana mukuru weOTN tekinoroji ndeyekupa kuronga uye kutapurirana hombe granularity bandwidth.Naizvozvo, kana kushandisa tekinoroji yeOTN pamatanho akasiyana etiweki zvinoenderana nehukuru hweiyo huru yekuronga sevhisi bandwidth granularity.Zvinoenderana nemamiriro azvino etiweki, zvimedu zvakakura zveiyo core layer yekuronga yeinter-provincial trunk transmission network, iyo intra-provincial trunk transmission network uye metro (yemunharaunda) yekufambisa network inowanzo Gb / s uye pamusoro.Zvirinani OTN tekinoroji yekuvaka.
Kune iyo yekuunganidza uye yekuwana nhanho yenzvimbo yemetropolitan (yenzvimbo) yekufambisa network, kana iyo huru yekuronga zvimedu inosvika padanho reGb/s, tekinoroji yeOTN inogonawo kugadzirwa zvakasarudzika.

1. National trunk optical transport network Iine IP-based network uye masevhisi, kuvandudza masevhisi matsva uye kukurumidza kuwedzera kwevashandisi vebroadband, iyo IP traffic pahunde yenyika yakawedzera zvakanyanya, uye kudiwa kwebandwidth kwakawedzera zvakanyanya gore negore. .Iyo WDM yenyika trunk line inotakura PSTN/2G kureba masevhisi, NGN/3G kureba masevhisi, uye Internet yenyika trunk line masevhisi.Nekuda kwehuwandu hukuru hwemasevhisi evatakuri, WDM yenyika trunk mitsara ine chido chekukurumidzira chekuchengetedzwa kwevatakuri masevhisi.Mushure mekutora tekinoroji yeOTN, iyo inotakura nzira yenyika trunk mutsara IP pamusoro peOTN inogona kuona SNCP dziviriro, SDH-senge ring network kuchengetedza, MESH network kuchengetedza uye dzimwe nzira dzekuchengetedza network.Zvakaderedzwa zvikuru.

2. Intra-provincial/regional trunk optical transport network Iyo intra-provincial/regional backbone routers inotakura masevhisi pakati pemahofisi ari kure kure (NGN/3G/IPTV/special line kune vatengi vakuru, nezvimwewo).Kuburikidza nekuvakwa kweprovince/regional trunk OTN optical transmission network, yakachengeteka uye yakavimbika kutapurirana kweGE/10GE, 2.5G/10GPOS makuru-granularity masevhisi anogona kuitika;mhete network, yakaoma mhete network, uye MESH network inogona kuumbwa;network inogona kuwedzerwa pane zvinodiwa;Ziva kuchinjika-kuronga uye kushambidzika kwewavelength / sub-wavelength masevhisi, uye kupa wavelength / sub-wavelength yakatsaurirwa mutsara masevhisi kune vatengi vakakura;cherechedzawo kutapurirana kwemamwe masevhisi akadai seSTM-1/4/16/64SDH, ATM, FE, DVB, HDTV, ANY, etc.

3. Metro/local optical transport network Papakati peiyo metro network, iyo OTN optical transport network inogona kuona mahombe-scale-broadband masevhisi pakati pemetro aggregation router, network yemuno C4 (regional/county centre) aggregation router uye metropolitan. core router.send.Iyo yekukwira kumusoro kweiyo router inonyanya kuve GE/10GE, uye inogona zvakare kunge iri 2.5G/10GPOS.Iyo OTN optical transport network pane metro core l