Ha beng ba lits'ebeletso tsa data ba haha li-interconnection network network interconnections, ba nahana haholo ka litaba tse kang bandwidth e kholo, latency e tlaase, e phahameng haholo, ho tsamaisoa ka potlako, ts'ebetso e bonolo le tlhokomelo, le botšepehi bo phahameng.Hajoale, theknoloji e kholo ea li-bandwidth ea OTN e laoloa haholo ke baetsi ba lisebelisoa tse ngata tse kholo tsa mehala (li-chips li buisanoa ka thoko), joalo ka Huawei, ZTE le Aran.Bareki ba ka sehloohong bao ba tobaneng le bona ke basebelisi ba mehala ba setso, ka hona likarolo tsa sehlahisoa sa OTN li etselitsoe haholo ho kopana le litšobotsi tsa lits'ebeletso tsa basebelisi bana.Ka lebaka la sena, OTN e ntse e sebelisoa haholo lits'ebetsong tsa marang-rang tsa DCI indastering ea Marang-rang.Mathata a mangata a fapaneng.
Litšobotsi tsa thepa ea OTN ke mathata a tšoanang le a DCI, khoebo e ruileng, bokhoni bo matla ba OAM ea marang-rang, bokhoni ba ho hlophisa le ho kopanya li-bandwidth tse fapaneng tsa granular, ho mamellana ha phoso tlas'a maemo a nako e telele, le tšebeliso ea matla a tlaase a motlakase. jwale.Lintlha tse joalo ka sekhahla se tlase sa tšebeliso ea matla a lisebelisoa.
1. Bokhoni ba ho sebelisa chelete e ngata khoebong bo hloka hore basebetsi ba O&M e be profeshenale, ba itšetlehe haholo ka tšehetso ea tekheniki ho tsoa ho bahlahisi, le ho ba le theknoloji e koetsoeng haholoanyane.
2. Bokhoni bo matla ba OAM, litekanyetso tse sa tsitsang, khokahanyo e thata haholoanyane le e ikemetseng le marang-rang a marang-rang, le mesebetsi e se nang thuso e boetse e tlisa litšenyehelo tse ngata tsa phetisetso le ts'ebetso ho marang-rang a DCI.
3. Bokhoni bo fapaneng ba kemiso ea granule bo etsa hore sebopeho sa foreimi ea encapsulation e be thata le ho feta le li-byte tsa sehlaha.
4. Mamello ea phoso ea mela e telele e etsa hore FEC algorithm e rarahane, e je haholo 'me e nka nako e telele ho sebetsa.
5. Mokhoa oa ho fana ka matla a 48V-DC oa thepa ea OTN o fapane le lik'habote tse tloaelehileng tsa 19-inch 220V-AD (kapa 240V-DC) tse sebelisoang litsing tse ngata tsa data.Ho kenya ho rarahane 'me ho hloka phetoho ea matla ka kamoreng ea k'homphieutha
6. Thepa e tloaelehileng ea OTN e na le foreimi e kholo, e sa lokelang ho kenngoa lik'haboteng tse tloaelehileng, 'me boima ba bokhoni ha bo phahame.Ho atolosoa ha morao ho thata 'me ho hloka hore lik'habote li tlosoe kapa li hahuoe bocha.
Hajoale, marang-rang a rona a DCI a fana haholo ka lipeipi bakeng sa data ea setsi sa data.Litšobotsi tse ka sehloohong tsa mokhoa oa khoebo ke: litlhoko tse kopaneng le tse le 'ngoe tsa bandwidth granularity, bandwidth e kholo, lits'ebeletso tsa marang-rang (haholo-holo IDC e sebetsang ka bongata, lits'ebeletso tse kholo tsa data)) e na le litlhoko tse tlase tsa latency le litlhoko tse phahameng tsa botsitso ba marang-rang;ka nako e ts'oanang, ka lebaka la khaello ea basebetsi ba amehang le botekgeniki indastering ea Marang-rang, ts'ebetso le tlhokomelo ea marang-rang a DCI e hloka ho ba "bonolo" "bonolo" le "bonolo" - lintho tsa bohlokoa li boleloa ka makhetlo a mararo (moo Isn 'Na ha se mofuta oa marang-rang?);nts'etsopele e phatlohang ea Marang-rang e etsa hore litlhoko tsa potoloho ea kaho le katoloso e be khuts'oane (potoloho ea katoloso ea OTN ea basebelisi hangata ke halofo ea selemo ho isa ho selemo se le seng, athe litlhoko tsa katoloso ea DCI ea inthanete ke 1 ho isa ho likhoeli tse 3), Ka hona, hoa hlokahala ho hatella. nako ka linako tsohle.
Ka hona, OTN e fana ka tharollo e sebetsang bakeng sa DCI, empa OTN ho hang ha se tharollo e loketseng DCI.Kaha joale marang-rang a DCI a ntse a eketseha, ho na le tlhokahalo e ntseng e eketseha ea litharollo tse loketseng ho rarolla mathata ho tloha ho litšenyehelo ho isa ho tsa kaho, ts'ebetso le tlhokomelo.mathata a fapaneng a kopaneng.'Me mathata ana ha se letho ho feta litlhoko tse tšeletseng tsa marang-rang a DCI (li-bandwidth tse kholo, latency e tlaase, boima bo phahameng, ho tsamaisoa ka potlako, ts'ebetso e bonolo le tlhokomelo, le botšepehi bo phahameng):
1. Motlakase o moholo, marang-rang a phetisetso ea DCI ha a na mefuta e ruileng ea li-granules tse kang li-operators, li-bandwidth granules tsa marang-rang a phetisetso ea DCI li bonolo, hona joale li sebelisoa ka tloaelo 10G kapa 100G, nakong e tlang 200G / 400G, joalo-joalo, kahoo ha ho hlokahale. ho e etsa ka bandwidth e kholo ea Bandwidth ho li-granularities tse ling.Ka lebaka la hore sebaka sa sebaka sa marang-rang sa phetisetso ea DCI hangata ha se nako e telele haholo, ho sebelisoa sistimi ea 400G e thehiloeng ho 200G PM-16QAM dual-carrier modulation, sebaka sa phetisetso ntle le relay ea motlakase e ka ba lik'hilomithara tse 500 (PM-64QAM ke hoo e ka bang 200 kilometers) , e le hore phetisetso ea mokokotlo oa metro ea DCI e se ke ea lekanyetsoa ke sebaka.
2. Litlhoko tsa khoebo tsa DCI tse tlaase, haholo-holo ha cloud computing e sebelisetsoa ho bokella lisebelisoa le litsi tsa data tse ngata tse sebetsang, latency e baloa boemong ba microsecond, kahoo nako ea phetisetso ea data e lokela ho ba e khutšoanyane ka hohle kamoo ho ka khonehang, e lakatsang ho feta. lebelo la kganya.Felisa mosebetsi o sa hlokahaleng oa ho sebetsana le data le ho fokotsa litsela tsa phetiso ea matšoao.Ka mohlala, ka ho tlosa ts'ebetso ea SD-FEC e sebelisoang ke 100G OTN, mokokotlo o le mong o ka boloka li-microseconds tsa 200, 'me ho tlosa li-cross-level OTN encapsulation ho ka boloka mashome a microseconds,' me ka bohlale sebelisa topology ea hubspoke bakeng sa litšebeletso tsa bohlokoa. ho etsa bonnete ba tsela e kgutshoane haholo.Ha e le hantle, e ka boela ea sebelisana le MPLS le QOS boemong ba IP ho leka ho etsa bonnete ba hore ho lieha ha boemo ba ho fetisetsa data ho boetse ho molemo.
3.High density, e le 'ngoe U, kapa 2U, e ka finyella bandwidth ho fihlela ho T, DWDM optical layer le motlakase oa signal layer decoupling, ho ntlafatsa segokanyimmediamentsi sa sesebelisoa, le ho fokotsa boholo ba optical module.Ka mohlala, tšebeliso ea QSFP28 optical modules e ka etsa bonnete ba hore bokhoni ba ho fihlella 100G ba sesebelisoa se le seng bo ntlafatsoa haholo, 'me tšebeliso ea li-modules tsa CFP2 tsa motšehare ka lehlakoreng la mohala li ka etsa bonnete ba hore bandwidth ea phetisetso ea sesebelisoa ka kakaretso e ntlafatsoa, 1U e be 1.6T, 3.2T.Hona joale, lihlahisoa tse ngata tse amanang le tsona li hlahile lefatšeng, tse kang ADVA, coriant, ciena le lik'hamphani tse ling.Ehlile, Huawei ea lapeng le eona e phatlalalitse lihlahisoa tse amanang le 902.Leha ho le joalo, ho fihlela qetellong ea sehlooho sena, ho bonahala eka teko ea ho fumana marang-rang ea Lekala la Indasteri le Theknoloji ea Boitsebiso ha e e-s'o phethoe.Boima bo phahameng bo tla baka tšebeliso e phahameng ea matla le ho senya mocheso.Ka hona, mokhoa oa pele oa ho felisa mocheso oa OTN oa moea o ka letsohong le letšehali le ka ho le letona ho tsoa le ho tsoa, le moea o holimo le o tlase o kenang le ho tsoa o lokela ho lahloa.
Litlhoko tsa ho pholisa sesebelisoa.
4. Ho romelloa ka potlako, ho sebelisa rack e tloaelehileng ea IDC ea 19-inch, e tšoanang le mofuta oa li-server tse tloaelehileng, tse sebelisang AC-220V bakeng sa phepelo ea motlakase ka ho toba, ho felisa tlhokahalo ea matla le phetoho ea khabinete, le ho hlokomela hore thepa e ka kenngoa. lishelefo hang ka mor'a hore li fihle ka kamoreng ea k'homphieutha, 'me li ka lokisoa ka mor'a ho kenya motlakase.khoebo, le ho etsa mosebetsi o motle mosebetsing o amohelehang oa kamohelo ho fihlela thomello e potlakileng.
5. Ts'ebetso e bonolo le tlhokomelo, litlhoko tsa mohlala oa khoebo oa DCI, sebaka sa ho pholletsa le litsi tsa data se ke ke sa e-ba hōle haholo, 'me tsamaiso e rarahaneng ea tsamaiso, OAM le mesebetsi e meng ha e hlokahale ho phetha karolo e kholo boemong bona,' me ts'ebetso e rarahaneng e boetse e fokotsehile. E ntlafatsa katleho ea phetisetso ea data, e ntlafatsa nako ea ts'ebetso ea data, 'me e na le litlhoko tse phahameng tsa theknoloji mme e koetsoe haholoanyane.Ho hokahanya mats'oao ka ho toba ka Ethernet ho felisa hlooho e rarahaneng ea OTN, kahoo baenjiniere ba setso ba marang-rang ba IP ba ka sebetsa le ho boloka sistimi ea DCI.Ka mor'a ho kopanya li-interfaces tse ncha tse ka leboea tse kang YANG model, REST API, le netconf, tsamaiso ea lisebelisoa tsa phetisetso ea DCI le tsamaiso ea lisebelisoa tsa marang-rang a IP li hlahisoa ka sebopeho se tšoanang, e le ho phethahatsa hantle tsamaiso e kopanetsoeng ea marang-rang e thehiloeng sethaleng.
6. Botšepehi bo phahameng, mekhoa e mengata ea litsela le mekhoa ea ts'ireletso e sa tsebeng lera e ka holimo e tla tsoela pele ho phetha karolo ea marang-rang a phetiso ea DCI.Ho hloleha maemong a mantlha a khokahano ha ea lokela ho ba le tšusumetso efe kapa efe litšebeletsong ntle le haeba e sitisoa ka botlalo.Maikutlo kapa tšusumetso, ebang ke ts'ireletso ea ts'ireletso, jitter ea lihokela, keketseho ea ho lieha, joalo-joalo.
Nako ea poso: Feb-13-2023