Pambuyo poti netiweki ya DCI yayambitsa ukadaulo wa OTN, zimakhala ngati kuwonjezera ntchito yonse yomwe sinalipo kale pankhani yogwira ntchito. Netiweki yachikhalidwe ya data center ndi netiweki ya IP, yomwe ndi yaukadaulo wa netiweki wanzeru. OTN mu DCI ndi ukadaulo wa physical layer, ndipo momwe mungagwiritsire ntchito ndi IP layer mwanjira yabwino komanso yabwino ndi njira yayitali yogwirira ntchito.
Pakadali pano, cholinga cha ntchito yochokera ku OTN ndi chimodzimodzi ndi cha dongosolo lililonse la deta. Cholinga chake ndi kukulitsa magwiridwe antchito a zinthu zomwe zimayikidwa mu zomangamanga zokwera mtengo komanso kupereka chithandizo chabwino kwambiri cha ntchito zotsogola. Kukonza kukhazikika kwa dongosolo loyambira, kuthandizira ntchito yogwira ntchito bwino komanso yokonza, kuthandizira kugawa bwino zinthu, kupangitsa kuti zinthu zomwe zimayikidwa zigwire ntchito yayikulu, ndikugawa zinthu zomwe sizinayikidwe moyenera.
Kugwira ntchito kwa OTN kumakhudza makamaka magawo angapo: kasamalidwe ka deta ya ntchito, kasamalidwe ka katundu, kasamalidwe ka kasinthidwe, kasamalidwe ka alamu, kasamalidwe ka magwiridwe antchito, ndi kasamalidwe ka DCN.
1 Deta Yogwirira Ntchito
Pangani ziwerengero pa deta ya zolakwika, kusiyanitsa zolakwika za anthu, zolakwika za hardware, zolakwika za mapulogalamu, ndi zolakwika za anthu ena, ndikuchita kusanthula ziwerengero pa mitundu ya zolakwika zazikulu, kupanga mapulani ogwiritsira ntchito, ndikukonza njira yokonzera zolakwika zokha pambuyo pa kukhazikika kwa mtsogolo. Malinga ndi kusanthula deta ya zolakwika, dongosololi limakonzedwa bwino kuti ligwire ntchito zamtsogolo monga kapangidwe ka zomangamanga ndi kusankha zida, kuti muchepetse mtengo wa ntchito yogwirira ntchito ndi kukonza pambuyo pake. Pa OTN, chitani ziwerengero za zolakwika kuchokera ku ma amplifiers optical, boards, modules, multiplexers, cross-device jumpers, trunk fibers, DCN networks, etc., tengani nawo magawo opanga, magawo a anthu ena, ndi zina zotero, ndikuchita kusanthula deta yamitundu yambiri kuti mupeze deta yolondola kwambiri. Ikhoza kuwonetsa molondola momwe netiweki ilili.
Pangani ziwerengero pa deta ya kusintha, kusiyanitsa zovuta ndi zotsatira za kusintha, kugawa antchito, ndikusintha malinga ndi njira yowunikira zosowa, dongosolo losinthira, kukhazikitsa zenera, kudziwitsa ogwiritsa ntchito, kugwira ntchito, ndi kuwunika mwachidule, ndipo potsiriza mutha kusintha zinthu zosiyanasiyana. Imagawidwa m'mawindo, ngakhale yokonzedwa kuti ichitike masana, kotero kuti kugawa kwa ogwira ntchito osintha kumakhala koyenera, kuchepetsa kupsinjika kwa ntchito ndi moyo, ndikukweza chisangalalo cha mainjiniya ogwirira ntchito. Ikhozanso kuphatikiza deta yomaliza ya ziwerengero ndikugwiritsa ntchito ngati chisonyezero cha magwiridwe antchito a antchito komanso luso la ntchito. Nthawi yomweyo, imalolanso kusintha kwabwinobwino kuti kuchitike motsatira njira yokhazikika komanso yodziyimira payokha, kuchepetsa ndalama zosiyanasiyana.
Sonkhanitsani ziwerengero za kugawa kwa ntchito za OTN kuti zikuthandizeni kudziwa momwe maukonde amagwiritsidwira ntchito ndikuwongolera kugawa kwa maukonde ndi maukonde onse pambuyo poti kuchuluka kwa ntchito kukwera. Ngati muchita zinthu molakwika, mutha kudziwa kuti ndi ntchito iti ya maukonde yomwe njira imodzi ikugwiritsa ntchito, monga netiweki yakunja, intranet, netiweki ya HPC, netiweki yautumiki wamtambo, ndi zina zotero. Ngati muchita mwatsatanetsatane, mutha kuphatikiza njira yonse yoyendera kuti muwunike momwe magalimoto amagwirira ntchito. Ndalama zosiyanasiyana za bandwidth zimagawidwa m'madipatimenti osiyanasiyana amalonda kuti ziwathandize kukonza kuchuluka kwa magalimoto amalonda, kubwezeretsanso ndikusintha njira zogwirira ntchito zochepa nthawi iliyonse, ndikukulitsa njira zamabizinesi zomwe zimagwiritsidwa ntchito kwambiri.
Deta yokhazikika ya ziwerengero, yomwe ndi deta yayikulu yofotokozera za SLA, ndi lupanga la Damocles pamutu pa ogwira ntchito ndi kukonza aliyense. Ziwerengero za data yokhazikika ya OTN ziyenera kudziwika chifukwa cha chitetezo chawo. Mwachitsanzo, ngati njira imodzi yasokonekera, bandwidth yonse pa IP layer sidzakhudzidwa, kaya idzaphatikizidwa mu SLA; ngati bandwidth ya IP yachepetsedwa pakati, koma bizinesiyo sidzakhudzidwa, kaya idzaphatikizidwa mu SLA; kaya kulephera kwa njira imodzi kwaphatikizidwa mu SLA; kuwonjezeka kwa kuchedwa kwa njira yotetezera sikukhudza bandwidth ya netiweki, koma kumakhudza bizinesiyo, kaya idzaphatikizidwa mu SLA, ndi zina zotero. Kawirikawiri ndi kudziwitsa mbali ya bizinesi za zoopsa monga jitter ndi kusintha kwa kuchedwa isanamangidwe. SLA yotsatira imawerengedwa kutengera kuchuluka kwa njira zolakwika * bandwidth ya njira imodzi yolakwika, yogawidwa ndi chiwerengero chonse cha njira * kuchuluka kwa bandwidth yofananira ya njira, kenako kuchulukitsidwa ndi Kutengera nthawi yokhudzidwa, mtengo womwe wapezeka umagwiritsidwa ntchito ngati muyezo wowerengera wa SLA.
2 Kusamalira Katundu
Katundu wa zida za OTN amafunikanso kasamalidwe ka moyo wonse (kufika, pa intaneti, kukanda, kusamalira zolakwika), koma mosiyana ndi ma seva, ma switch a netiweki ndi zida zina, kapangidwe ka zida za OTN ndi kovuta kwambiri. Zipangizo za OTN zimaphatikizapo ma board ambiri ogwira ntchito, kotero ndikofunikira kupanga njira yoyendetsera katundu wonse panthawi yoyang'anira. Pulatifomu yayikulu yoyang'anira katundu wa IP mu data center imachokera ku ma seva ndi ma switch, ndipo mulingo wa chipangizo cha master-slave udzakhazikitsidwa. Pamaziko a OTN, mulingo wa master-slave udzaphatikizapo kasamalidwe ka hierarchical, koma pali zigawo zambiri. Mulingo woyang'anira umachitidwa makamaka ndi network element->subrack->board card->module:
2.1. Chinthu cha netiweki ndi chipangizo chongopeka, chopanda zinthu zakuthupi. Chimagwiritsidwa ntchito poyang'anira ndi mfundo yoyamba yolondola mu netiweki ya OTN, ndipo ndi cha gawo loyamba mu kasamalidwe ka netiweki ya OTN. Chipinda cha zida zakuthupi chingakhale ndi NE imodzi kapena ma NE angapo. Chinthu cha netiweki chimakhala ndi ma subrack angapo, monga ma subrack a optical layer, ma subrack amagetsi, ndi ma multiplexers akunja ndi ma demultiplexers amaonedwanso ngati subrack. Subrack iliyonse imatha kulumikizidwa motsatizana ndipo ndi ya subrack mkati mwa tsamba limodzi la netiweki. Kuwerengera manambala. Kuphatikiza apo, chinthu cha netiweki chilibe nambala ya SN ya katundu, kotero chiyenera kulumikizidwa ndi nsanja yoyang'anira pankhaniyi, makamaka ndi chidziwitso chomwe chili pamndandanda wogula ndi nsanja yoyang'anira ntchito ndi kukonza pambuyo pake, kuti tipewe kufufuza kwa katundu komwe sikukugwirizana. Kupatula apo, chinthu cha netiweki ndi chuma chongopeka. .
2.2. Gawo lalikulu kwambiri la zida za OTN ndi chassis, kutanthauza subrack, yomwe ndi ya gawo lachiwiri la gawo loyamba la netiweki. Ndi gawo lachiwiri, ndipo gawo la netiweki lili ndi chipangizo chimodzi cha subrack. Ma subrack awa amagawidwa m'mitundu yosiyanasiyana ya opanga osiyanasiyana, omwe ali ndi ntchito zosiyanasiyana, kuphatikiza ma subrack amagetsi, ma photon subrack, ma general subrack, ndi zina zotero. Subrack ili ndi nambala yeniyeni ya SN, koma nambala yake ya SN singapezeke yokha kudzera pa nsanja yoyang'anira netiweki, ndipo imatha kuwonedwa pamalopo kokha. N'zosowa kusuntha ndikusintha subrack ikalowa pa intaneti. Mabolodi osiyanasiyana amayikidwa mu subrack.
2.3. Mkati mwa subrack yachiwiri ya OTN, muli malo enaake ogwirira ntchito. Malowa ali ndi manambala ndipo amagwiritsidwa ntchito kuyika ma board osiyanasiyana a mautumiki a ma network optical. Ma board awa ndi maziko othandizira mautumiki a netiweki ya OTN, ndipo bolodi lililonse limatha kufunsa SN yake kudzera mu dongosolo loyang'anira netiweki. Ma board awa ndi mayunitsi achitatu mu kasamalidwe ka katundu wa OTN. Ma board osiyanasiyana abizinesi ali ndi kukula kosiyana, amakhala ndi malo osiyanasiyana, ndipo ali ndi ntchito zosiyanasiyana. Chifukwa chake, pamene bolodi likufunika kupatsidwa subrack yachiwiri ya unit, nsanja ya katundu iyenera kulola bolodi limodzi kugwiritsa ntchito malo angapo kapena theka kuti ligwirizane ndi manambala a slot pa subrack.
2.4. Kasamalidwe ka chuma cha module ya Optical. Ma module amadalira kugwiritsa ntchito ma board a service. Ma board onse a bizinesi ayenera kulola umwini wa ma module a optical, koma si ma board onse a zida za OTN omwe ayenera kulumikizidwa mu ma module a optical, kotero ma board ayeneranso kuloledwa. Palibe module yomwe ilipo. Module iliyonse ya optical ili ndi nambala ya SN, ndipo module yomwe yayikidwa pa bolodi iyenera kugwirizana ndi nambala ya doko la bolodi kuti isanthule mosavuta malo.
Zonsezi zitha kusonkhanitsidwa kudzera mu mawonekedwe akumpoto a nsanja yoyang'anira maukonde, ndipo kulondola kwa chidziwitso cha katundu kumatha kuyendetsedwa kudzera mu kusonkhanitsa pa intaneti ndi kutsimikizira ndi kufananiza pa intaneti. Kuphatikiza apo, zida za OTN zimaphatikizaponso zotchingira kuwala, ma short jumpers, ndi zina zotero. Zipangizozi zitha kuyendetsedwa mwachindunji ngati zotchingira.
Nthawi yotumizira: Disembala-12-2022