Eni ake a malo osungira deta akamamanga maukonde a ma data center, amaganizira kwambiri nkhani monga bandwidth yayikulu, kuchedwa kochepa, kuchuluka kwa deta, kutumizidwa mwachangu, kugwiritsa ntchito mosavuta komanso kukonza, komanso kudalirika kwambiri. Pakadali pano, ukadaulo waukulu wa OTN waukulu umayendetsedwa makamaka ndi opanga zida zazikulu zama telecom (ma chip amakambidwa padera), monga Huawei, ZTE, ndi Aran. Makasitomala akuluakulu omwe amakumana nawo ndi omwe amagwiritsa ntchito ma telecom, kotero mawonekedwe a OTN amapangidwa makamaka kuti akwaniritse mawonekedwe a ntchito za ogwiritsa ntchito awa. Chifukwa cha izi, OTN ikugwiritsidwa ntchito kwambiri mu ma network a DCI mumakampani a intaneti. Mavuto ambiri osiyanasiyana.
Makhalidwe a zida za OTN ndi mavuto omwewo omwe DCI imakumana nawo, ndalama zambiri zomwe bizinesi imagwiritsa ntchito, mphamvu ya OAM ya netiweki, kukonza nthawi ndi kuchulukitsa ma bandwidth osiyanasiyana a granular, kulekerera zolakwika za mzere pansi pa mikhalidwe yayitali, komanso kugwiritsa ntchito mphamvu yamagetsi yotsika. Zinthu monga kugwiritsa ntchito mphamvu zochepa pazida.
1. Kugwira ntchito bwino kwa bizinesi kumafuna kuti ogwira ntchito ku O&M akhale akatswiri kwambiri, kudalira kwambiri thandizo laukadaulo kuchokera kwa opanga, komanso kukhala ndi ukadaulo wotsekedwa.
2. Mphamvu za OAM, miyezo yosagwirizana, kulumikizana kovuta komanso kodziyimira pawokha ndi maukonde osiyanasiyana, komanso ntchito zopanda ntchito zimabweretsanso ndalama zambiri zotumizira ndi kugwiritsa ntchito maukonde a DCI.
3. Kuthekera kosiyanasiyana kwa granule schedule kumapangitsa kuti kapangidwe ka chimango cha service encapsulation kakhale kovuta komanso kukhala ndi ma byte okhala ndi malo ambiri.
4. Kulekerera zolakwika za mzere wautali kumapangitsa kuti njira ya FEC ikhale yovuta, imatenga ndalama zambiri komanso imatenga nthawi yayitali kuti ikonzedwe.
5. Makina amagetsi a 48V-DC a zida za OTN ndi osiyana ndi makabati wamba a mainchesi 19 a 220V-AD (kapena 240V-DC) omwe amagwiritsidwa ntchito m'malo ambiri osungira deta. Kukhazikitsa kwake ndi kovuta ndipo kumafuna kusintha kwa magetsi m'chipinda cha makompyuta.
6. Zipangizo zachikhalidwe za OTN zili ndi chimango chachikulu, chomwe sichiyenera kuyikidwa m'makabati wamba, ndipo kuchuluka kwa mphamvu sikokwera kwambiri. Kukula pambuyo pake kumakhala kovuta ndipo kumafuna kuti makabati asunthidwe kapena kumangidwanso.
Pakadali pano, netiweki yathu ya DCI ikufuna kupereka njira zopezera deta ya malo olumikizirana deta. Makhalidwe akuluakulu a bizinesi ndi awa: zofunikira za bandwidth yogwirizana komanso imodzi, bandwidth yayikulu, ntchito za malo olumikizirana deta (makamaka IDC yogwira ntchito yambiri, ntchito zazikulu za data)) ili ndi zofunikira zochepa za latency komanso zofunikira kwambiri kuti netiweki ikhale yokhazikika; nthawi yomweyo, chifukwa cha kusowa kwa akatswiri ndi akatswiri oyenerera mumakampani a intaneti, kuyendetsa ndi kukonza ma netiweki a DCI kuyenera kukhala "kosavuta" "kosavuta" komanso "kosavuta" - zinthu zofunika zimanenedwa katatu (kodi si mtundu wa netiweki?); chitukuko champhamvu cha intaneti chimapangitsa kuti zofunikira pakupanga ndi kukula zikhale zazifupi (nthawi yokulira ya OTN ya ogwiritsa ntchito nthawi zambiri imakhala theka la chaka mpaka chaka chimodzi, pomwe zofunikira pakukula kwa DCI ya intaneti ndi mwezi umodzi mpaka itatu), Chifukwa chake, ndikofunikira kupondereza nthawi m'mbali zonse.
Chifukwa chake, OTN imapereka yankho lothandiza pa DCI, koma OTN si yankho loyenera kwambiri pa DCI. Tsopano popeza netiweki ya DCI ikukula, pakufunika njira zina zoyenera zothetsera mavuto kuyambira pa mtengo mpaka kumanga, kugwiritsa ntchito ndi kukonza. Mavuto osiyanasiyana omwe akukumana nawo. Ndipo mavutowa ndi ofunikira kwambiri kuposa zofunikira zisanu ndi chimodzi za netiweki ya DCI (bandwidth yayikulu, kuchedwa kochepa, kuchuluka kwa anthu ambiri, kutumizidwa mwachangu, kugwiritsa ntchito mosavuta ndi kukonza, komanso kudalirika kwambiri):
1. Bandwidth yayikulu, netiweki yotumizira ya DCI ilibe mitundu yambiri ya ma granules monga operekera, ma granules a bandwidth a netiweki yotumizira ya DCI ndi osavuta, omwe amagwiritsidwa ntchito kwambiri pakali pano ndi 10G kapena 100G, mtsogolomu ndi 200G/400G, ndi zina zotero, kotero palibe chifukwa chochitira izi ndi Bandwidth yayikulu ya bandwidth pa ma granularities ena. Chifukwa chakuti mtunda wa netiweki yotumizira ya DCI nthawi zambiri si wautali kwambiri, pogwiritsa ntchito makina a 400G otengera 200G PM-16QAM dual-carrier modulation, mtunda wotumizira popanda magetsi ukhoza kukhala pafupifupi makilomita 500 (PM-64QAM ndi pafupifupi makilomita 200), kotero kuti kutumiza kwa DCI kumbuyo kwa metro sikudzachepetsedwa ndi mtunda.
2. Kuchedwa kochepa, zofunikira pa bizinesi ya DCI, makamaka pamene cloud computing ikugwiritsidwa ntchito kuphatikiza zinthu ndi malo osungira deta ambiri, kuchedwa kumawerengedwa pa mulingo wa microsecond, kotero nthawi yotumizira deta iyenera kukhala yochepa momwe ingathere, pofuna kupitirira liwiro la kuwala. Chotsani ntchito yosafunikira yokonza deta ndikuchepetsa njira zotumizira zizindikiro. Mwachitsanzo, pochotsa ntchito ya SD-FEC yomwe imagwiritsidwa ntchito ndi 100G OTN, kubwereza kamodzi kokha kungasunge ma microsecond 200, ndipo kuchotsa OTN encapsulation yopingasa kungapulumutse ma microsecond makumi ambiri, ndikugwiritsa ntchito bwino hubspoke topology pa ntchito zazikulu kuti zitsimikizire njira yaifupi kwambiri. Zachidziwikire, ikhozanso kugwirizana ndi MPLS ndi QOS pa mulingo wa IP kuti ayesetse kuwonetsetsa kuti kuchedwa pa mulingo wotumizira deta kuli bwino.
3. Kuchuluka kwa mphamvu, U imodzi, kapena 2U, kumatha kukwaniritsa bandwidth yofika pa T, DWDM optical layer ndi electrical signal layer cleaving, kukonza mawonekedwe a density a chipangizocho, ndikuchepetsa kukula kwa optical module. Mwachitsanzo, kugwiritsa ntchito QSFP28 optical modules kungatsimikizire kuti 100G access ability ya chipangizo chimodzi yakula kwambiri, ndipo kugwiritsa ntchito CFP2 daylighting modules kumbali ya mzere kungatsimikizire kuti bandwidth yotumizira ya chipangizo chonse yakula, 1U ikhoza kukhala 1.6T, 3.2T. Pakadali pano, zinthu zambiri zokhudzana nazo zawonekera padziko lonse lapansi, monga ADVA, coriant, ciena ndi makampani ena. Zachidziwikire, Huawei yakunyumba yatulutsanso zinthu zokhudzana ndi 902. Komabe, pofika kumapeto kwa nkhaniyi, zikuwoneka kuti kuyesa kwa netiweki kwa Unduna wa Zamalonda ndi Ukadaulo sikunamalizidwe. Kuchuluka kwa mphamvu kudzayambitsa kugwiritsa ntchito mphamvu zambiri komanso kutaya kutentha. Chifukwa chake, njira yoyambirira yochotsera kutentha ya OTN ya mpweya wa kumanzere ndi wakumanja wolowa ndi kutuluka, komanso mpweya wokwera ndi wotsika wolowa ndi kutuluka uyenera kutayidwa.
Zofunikira pa kuziziritsa kwa chipangizo.
4. Kutumiza mwachangu, pogwiritsa ntchito choyimitsa cha IDC cha mainchesi 19 chomwe chilipo, chofanana ndi mawonekedwe a ma seva akuluakulu, pogwiritsa ntchito AC-220V kuti ipereke magetsi mwachindunji, kuchotsa kufunikira kwa magetsi ndi kusintha kwa kabati, ndikuzindikira kuti katunduyo akhoza kuyikidwa pamashelefu nthawi yomweyo akangofika mchipinda cha makompyuta, ndipo amatha kukonzedwa atatsegula magetsi. bizinesi, ndikuchita bwino pantchito yovomerezeka yokhazikika kuti akwaniritse kutumiza mwachangu.
5. Kugwiritsa ntchito mosavuta ndi kukonza, zofunikira pa mtundu wa bizinesi ya DCI, mtunda pakati pa malo osungira deta sudzakhala patali kwambiri, ndipo ntchito zovuta zoyang'anira, OAM ndi zina sizili zofunika kuti zigwire ntchito yayikulu pankhaniyi, ndipo kukonza kovuta kumachepetsedwa. Kumathandizira kuyendetsa bwino deta, kumathandizira nthawi yogwiritsira ntchito deta, komanso kumakhala ndi zofunikira zambiri paukadaulo ndipo kumatsekedwa kwambiri. Kulumikiza ma siginolo mwachindunji kudzera pa Ethernet kumachotsa zovuta zovuta za OTN, kotero mainjiniya achikhalidwe a IP network amatha kugwiritsa ntchito ndikusunga dongosolo la DCI. Pambuyo pophatikiza ma interface atsopano akumpoto monga YANG model, REST API, ndi netconf, kasamalidwe ka zida zotumizira DCI ndi kasamalidwe ka zida za IP network zimapangidwa ndi mawonekedwe omwewo, kuti akwaniritse bwino kasamalidwe ka network kogwirizana kochokera papulatifomu.
6. Kudalirika kwambiri, njira zambiri zoyendetsera zinthu komanso ukadaulo woteteza womwe sudziwa za gawo lapamwamba udzapitirizabe kugwira ntchito mu netiweki yotumizira ma DCI. Kulephera kwa ulalo woyambira sikuyenera kukhudza ntchito pokhapokha ngati kwasokonezedwa kwathunthu. Kuzindikira kapena kukhudza, kaya ndi kusintha kwa chitetezo, kugwedezeka kwa ulalo, kuwonjezeka kwa kuchedwa, ndi zina zotero.
Nthawi yotumizira: Feb-13-2023