OTN Ngwa ndapụta

OTN na PTN
Ekwesịrị ikwu na OTN na PTN bụ teknụzụ abụọ dị iche iche, na n'ụzọ teknụzụ, ekwesịrị ịsị na ọ nweghị njikọ.
OTN bụ netwọk njem anya, nke sitere na teknụzụ nkewa ogologo ogologo oge ọdịnala.Ọ na-agbakwunye ọrụ ngbanwe ngwa anya nwere ọgụgụ isi.Ọ nwere ike ghọta crossover ngwa anya site na nhazi data na-enweghị eriri jumpers ntuziaka.A na-emeziwanye ike na ngbanwe netwọkụ nke akụrụngwa WDM nke ukwuu.N'otu oge ahụ, netwọk OTN ọhụrụ ahụ na-eji nwayọọ nwayọọ na-agbanwe gaa na bandwit buru ibu, akụkụ buru ibu, yana nchebe siri ike.

PTN bụ netwọk njem nke ngwugwu, nke bụ ngwaahịa nke njikọta nke netwọk njem na netwọk data.Usoro bụ isi bụ TMPLS, nke nwere ọkwa IP dị ole na ole yana ngwugwu karịrị karịa ngwaọrụ netwọkụ.Ọ nwere ike na-aghọta mgbanaka netwọk na nchedo.Ọ bụ netwọk data ụgbọelu-klas (netwọk data ọdịnala enweghị ike izute ihe achọrọ-klas ndị ebu).Mgbasa bandwidth nke PTN dị obere karịa nke OTN.N'ozuzu, oke bandwit nke PTN bụ 10G, OTN otu ebili mmiri bụ 10G, ụzọ otu nwere ike iru 400G-1600G, na nkà na ụzụ kachasị ọhụrụ nwere ike iru otu ebili mmiri 40G.Ọ bụ ọkpụkpụ azụ nke netwọk mgbasa ozi.

OTN na SDH, WDM

OTN dabere na teknụzụ WDM, arụ ọrụ siri ike, mmezi, njikwa na ọrụ (OAM) nke SDH na-ewebata na ndabere nke ikike nnyefe dị ukwuu.OTN na-eji ọkọlọtọ FEC agbakwunyere agbakwunyere, bara ụba na mmezi na njikwa njikwa, ma dabara adaba maka ịnweta ọrụ nnukwu granularity FEC njehie mgbazi koodu, nke na-eme ka arụmọrụ mperi dị mma ma na-abawanye ogologo nnyefe ngwa anya.

OTN Ngwa ndapụta

Netwọk anya nwere ọgụgụ isi dabere na OTN ga-enye ezigbo ngwọta maka nnyefe nke ọrụ brọdband buru ibu.Netwọk njem bụ nke netwọọdụ ụgbọ njem n'etiti mpaghara, netwọk ụgbọ njem intra-provincial, na netwọk ụgbọ njem metro (mpaghara).Enwere ike kewaa netwọk ụgbọ njem metro (mpaghara) ka ọ bụrụ isi oyi akwa, akwa nchịkọta na oyi akwa ohere.E jiri ya tụnyere SDH, nnukwu uru nke teknụzụ OTN bụ ịnye nhazi oge na nnyefe nke nnukwu bandwidth granularity.Ya mere, ma ị ga-eji teknụzụ OTN na ọkwa netwọkụ dị iche iche dabere na nha bandwidth granularity ọrụ nhazi oge.Dị ka ọnọdụ ugbu a nke netwọk, isi irighiri ihe nke isi oyi akwa nhazi oge nke inter-provincial ogwe nnyefe netwọk, intra-provincial ogwe nnyefe netwọk na metro (mpaghara) nnyefe netwọk bụ n'ozuzu Gb / s na n'elu.Teknụzụ OTN ka mma iji wuo.
Maka mkpokọta na ọkwa nnweta nke netwọk ụgbọ njem nke mpaghara mepere emepe (mpaghara), mgbe isi ihe nhazi oge ruru ọkwa Gb/s, teknụzụ OTN nwekwara ike ịrụ ọrụ nke ọma.

1. National Trunk Optical Transport network Site na netwọk na ọrụ dabere na IP, mmepe nke ọrụ ọhụrụ na mmụba ngwa ngwa nke ndị ọrụ brọdband, okporo ụzọ IP na ogwe osisi abawanyela nke ukwuu, na mkpa bandwidth na-abawanye kwa afọ kwa afọ. .Ahịrị akpati mba WDM na-ebu ọrụ ogologo oge PSTN/2G, ọrụ NGN/3G ogologo, yana ọrụ ahịrị okporo osisi ịntanetị.N'ihi oke ọrụ ndị na-ebu ibu, ahịrị akpati mba WDM nwere mkpa dị ngwa maka nchekwa nke ọrụ ibu.Mgbe ịnakwere teknụzụ OTN, onye na-ebu ọnọdụ nke ahịrị okporo ụzọ IP n'elu OTN nwere ike ịghọta SNCP nchedo, nchekwa netwọọdụ mgbanaka SDH, nchebe netwọkụ MESH na ụzọ nchebe netwọkụ ndị ọzọ.Mbelata nke ukwuu.

2. Intra-provincial / mpaghara okporo osisi optical transport network The intra-provincial / mpaghara backbone routers na-ebu ọrụ n'etiti ụlọ ọrụ dị anya (NGN / 3G / IPTV / ahịrị pụrụ iche maka ndị isi ahịa, wdg).Site na-ewu nke mpaghara / mpaghara ogwe OTN ngwa anya nnyefe netwọk, nchekwa na ntụkwasị obi nnyefe nke GE / 10GE, 2.5G/10GPOS nnukwu-granularity ọrụ nwere ike mezuru;Enwere ike ịmepụta netwọk mgbanaka, netwọk mgbanaka mgbagwoju anya, na netwọk MESH;netwọk nwere ike gbasaa na-achọ;Chọpụta usoro nhazi oge na nhazi nke ọrụ wavelength / sub-wavelength, ma nye ọrụ ahịrị raara onwe ya nye ogologo ogologo / sub-wavelength maka nnukwu ndị ahịa;ghọtakwara nnyefe nke ọrụ ndị ọzọ dị ka STM-1/4/16/64SDH, ATM, FE, DVB, HDTV, ọ bụla, wdg.

3. Metro/ local optical network network Na isi oyi akwa nke metro netwọk, OTN ngwa anya njem netwọk nwere ike na-enweta nnukwu ọnụ ọgụgụ brọdband ọrụ n'etiti metro aggregation rawụta, mpaghara netwọk C4 (mpaghara/county center) aggregation rawụta na obodo mepere emepe. isi rawụta.zipu.The elu interface nke rawụta bụ tumadi GE/10GE, na nwekwara ike ịbụ 2.5G/10GPOS.Netwọk ụgbọ njem anya OTN na metro core l