Ọnọdụ Ngwa OTN

OTN na PTN
E kwesịrị ikwu na OTN na PTN bụ teknụzụ abụọ dị iche kpamkpam, na n'ikwu ya n'ụzọ teknụzụ, ekwesịrị ikwu na enweghị njikọ.
OTN bụ netwọk njem anya, nke sitere na teknụzụ nkewa ogologo oge ọdịnala. Ọ na-agbakwụnye ọrụ mgbanwe anya nwere ọgụgụ isi. Ọ nwere ike ime mgbanwe anya site na nhazi data na-enweghị ihe mgbochi eriri aka. A na-eme ka ike idobe ya na mgbanwe netwọk nke akụrụngwa WDM ka mma nke ukwuu. N'otu oge ahụ, netwọk OTN ọhụrụ na-agbanwe nwayọ nwayọ gaa na nnukwu bandwit, obere ihe ndị buru ibu, na nchebe siri ike.

PTN bụ netwọk njem ngwugwu, nke bụ ngwaahịa nke njikọta nke netwọk njem na netwọk data. Usoro bụ isi bụ TMPLS, nke nwere obere oyi akwa IP na ngwugwu elu karịa ngwaọrụ netwọk. Ọ nwere ike imezu netwọk mgbanaka na nchekwa. Ọ bụ netwọk data klas ụgbọelu (netwọk data ọdịnala enweghị ike imezu ihe achọrọ maka klas ụgbọelu). Bandwit nnyefe nke PTN pere mpe karịa nke OTN. N'ozuzu, bandwit otu kachasị elu nke PTN bụ 10G, OTN otu ebili mmiri bụ 10G, ụzọ otu nwere ike iru 400G-1600G, teknụzụ kachasị ọhụrụ nwekwara ike iru otu ebili mmiri 40G. Ọ bụ isi ihe dị na netwọk nnyefe.

OTN na SDH, WDM

OTN dabere na teknụzụ WDM, a na-ewebata ikike ọrụ, mmezi, njikwa na ọrụ (OAM) dị ike nke SDH dabere na ikike nnyefe buru ibu. OTN na-eji FEC ọkọlọtọ agbakwunyere, bara ụba na mmezi na njikwa, ọ dịkwa mma maka ịnweta ọrụ buru ibu-granularity FEC nhazi njehie koodu, nke na-eme ka arụmọrụ njehie bit ka mma ma na-eme ka oge nnyefe anya dịkwuo elu.

Ọnọdụ Ngwa OTN

Netwọk anya nwere ọgụgụ isi nke dabeere na OTN ga-enye ngwọta zuru oke maka nnyefe nke ọrụ broadband buru ibu. Netwọk njem bụ isi ihe mejupụtara netwọk njem ogwe dị n'etiti ógbè, netwọk njem ogwe dị n'ime ógbè, na netwọk njem metro (mpaghara). Enwere ike kewaa netwọk njem metro (mpaghara) n'ime oyi akwa isi, oyi akwa nchịkọta na oyi akwa nnweta. Ma e jiri ya tụnyere SDH, uru kachasị ukwuu nke teknụzụ OTN bụ inye nhazi na nnyefe nke nnukwu bandwidth granularity. Ya mere, ma ọ bụ iji teknụzụ OTN na oyi akwa netwọk dị iche iche dabere na nha nke isi nhazi ọrụ nhazi bandwidth. Dịka ọnọdụ netwọk dị ugbu a si dị, isi ihe nke nhazi oyi akwa isi nke netwọk nnyefe ogwe dị n'etiti ógbè, netwọk nnyefe ogwe dị n'ime ógbè na netwọk nnyefe metro (mpaghara) na-abụkarị Gb/s na karịa. Teknụzụ OTN ka mma iji wuo.
Maka nchịkọta na ọkwa nnweta nke netwọk njem mpaghara obodo ukwu (mpaghara), mgbe ihe ndị bụ isi na-ahazi usoro ihe omume ruru ọkwa Gb/s, a pụkwara ịmepụta teknụzụ OTN nke ọma.

1. Netwọk njem ngwa anya nke mba Site na netwọk na ọrụ dabere na IP, mmepe nke ọrụ ọhụrụ na mmụba ngwa ngwa nke ndị na-eji broadband, okporo ụzọ IP na ogwe mba amụbaala nke ukwuu, ọchịchọ bandwit amụbaala nke ukwuu kwa afọ. Ahịrị ogwe mba WDM na-ebu ọrụ PSTN/2G ogologo oge, ọrụ NGN/3G ogologo oge, na ọrụ ogwe mba ịntanetị. N'ihi nnukwu ọrụ ndị na-ebu ibu, ahịrị ogwe mba WDM nwere mkpa dị ngwa maka nchekwa nke ọrụ ndị na-ebu ibu. Mgbe ha nabatara teknụzụ OTN, ụdị onye na-ebu ibu nke ahịrị ogwe mba karịa OTN nwere ike imezu nchekwa SNCP, nchebe netwọk dị ka SDH, nchekwa netwọk MESH na ụzọ nchekwa netwọk ndị ọzọ. E belatara nke ukwuu.

2. Netwọk njem anya n'ime mpaghara/mpaghara. Netwọk njem anya n'ime mpaghara/mpaghara. Ndị na-anya ụgbọ okporo ígwè n'ime mpaghara/mpaghara na-ebu ọrụ n'etiti ọfịs ndị dị anya (NGN/3G/IPTV/ahịrị pụrụ iche maka ndị ahịa ukwu, wdg). Site na iwulite netwọk nnyefe anya OTN nke mpaghara/mpaghara, enwere ike imefe ọrụ GE/10GE, 2.5G/10GPOS dị nchebe ma dịkwa mma; enwere ike ịmepụta netwọk mgbanaka, netwọk mgbanaka mgbagwoju anya, na netwọk MESH; enwere ike ịgbasa netwọk ahụ ma ọ bụrụ na achọrọ ya; Mee ka usoro nhazi na nhazi nke ọrụ ogologo ebili mmiri/mpaghara dị n'okpuru, ma nye ọrụ ahịrị raara onwe ya nye maka ndị ahịa buru ibu; mekwaa nnyefe nke ọrụ ndị ọzọ dịka STM-1/4/16/64SDH, ATM, FE, DVB, HDTV, ANY, wdg.

3. Netwọk njem anya Metro/local Na oyi akwa isi nke netwọk metro, netwọk njem anya OTN nwere ike ịrụ ọrụ broadband buru ibu n'etiti rawụta aggregation metro, rawụta aggregation network C4 (mpaghara/etiti obodo) na rawụta isi obodo. zipu. Njikọ elu nke rawụta bụ GE/10GE, ọ nwekwara ike ịbụ 2.5G/10GPOS. Netwọk njem anya OTN na isi metro l