Malinga ndi makhalidwe awa, pali njira ziwiri zachikhalidwe za DCI:
1. Gwiritsani ntchito zida za DWDM zoyera, ndipo gwiritsani ntchito module ya kuwala kwamtundu + DWDM multiplexer/demultiplexer pa switch. Pankhani ya single-channel 10G, mtengo wake ndi wotsika kwambiri, ndipo zosankha zazinthuzo ndi zambiri. Module ya kuwala kwamtundu wa 10G ili m'nyumba. Yapangidwa kale, ndipo mtengo wake ndi wotsika kale (kwenikweni, makina a 10G DWDM adayamba kutchuka zaka zingapo zapitazo, koma pofika zofunikira zina zazikulu za bandwidth, adayenera kuchotsedwa, ndipo module ya kuwala kwamtundu wa 100G sinali yopezeka. Yawonekera.) Pakadali pano, 100G yangoyamba kumene kuwonekera m'ma module opangidwa ndi utoto okhudzana ndi China, ndipo mtengo wake si wotsika mokwanira, koma nthawi zonse idzakhala yothandiza kwambiri pa netiweki ya DCI.
2. Gwiritsani ntchito zida za OTN zotumizira zamagetsi zamphamvu kwambiri, ndi za 220V AC, zida za mainchesi 19, kutalika kwa 1 ~ 2U, ndipo kuyika kwake ndikosavuta. Ntchito ya SD-FEC imazimitsidwa kuti ichepetse kuchedwa, ndipo chitetezo cha routing pa optical layer chimagwiritsidwa ntchito kuti chikhale chokhazikika, ndipo mawonekedwe owongolera kumpoto amathandizanso kuti ntchito zowonjezera zida zitheke. Komabe, ukadaulo wa OTN ukadali wosungidwa, ndipo kasamalidwe kadzakhalabe kovuta.
Kuphatikiza apo, zomwe omanga ma netiweki a DCI oyamba akuchita pakadali pano ndikuchotsa ma netiweki yotumizira ya DCI, kuphatikizapo kugawa ma optical pa layer 0 ndi magetsi pa layer 1, komanso NMS ndi zida za hardware za opanga achikhalidwe. Njira yachikhalidwe ndi yakuti zida zamagetsi za wopanga wina ziyenera kugwirizana ndi zida za kuwala za wopanga yemweyo, ndipo zida za hardware ziyenera kugwirizana ndi pulogalamu ya NMS ya wopangayo yoyang'anira. Njira yachikhalidwe iyi ili ndi zovuta zingapo zazikulu:
1. Ukadaulo watsekedwa. Mwachiphunzitso, mulingo wa optoelectronic ukhoza kulekanitsidwa, koma opanga achikhalidwe salekanitsa dala kuti alamulire mphamvu ya ukadaulo.
2. Mtengo wa netiweki yotumizira ma DCI umakhala makamaka mu gawo lokonza ma signali amagetsi. Mtengo woyambirira womanga makinawo ndi wotsika, koma mphamvu ikakulitsidwa, wopanga adzakweza mtengowo poopa kuti ungakhale wapadera, ndipo mtengo wokulitsa udzawonjezeka kwambiri.
3. Pambuyo poti gawo la kuwala la netiweki yotumizira ya DCI lagwiritsidwa ntchito, lingagwiritsidwe ntchito ndi zida zamagetsi za wopanga yemweyo. Kuchuluka kwa zida zogwiritsira ntchito kumakhala kochepa, komwe sikukugwirizana ndi njira yopangira maukonde, ndipo sikuthandiza kukonza nthawi yogwirizanitsa zinthu za mawonekedwe a kuwala. Gawo la kuwala lolumikizidwa limayikidwa padera kumayambiriro kwa ntchito yomanga, ndipo silimachepetsedwa ndi kugwiritsa ntchito mtsogolo kwa dongosolo limodzi la mawonekedwe ndi opanga angapo, ndipo limaphatikiza mawonekedwe akumpoto a gawo la kuwala ndi ukadaulo wa SDN kuti lichite ndondomeko yowongolera zinthu za njira pa gawo la kuwala, Kukweza kusinthasintha kwa bizinesi.
4. Zipangizo za netiweki zimalumikizana bwino ndi nsanja yoyang'anira ma netiweki ya kampani ya intaneti mwachindunji kudzera mu kapangidwe ka data ka YANGmodel, komwe kumasunga ndalama zoyendetsera nsanja yoyang'anira ndikuchotsa pulogalamu ya NMS yoperekedwa ndi wopanga, zomwe zimapangitsa kuti kusonkhanitsa deta ndi kasamalidwe ka netiweki kugwire bwino ntchito.
Chifukwa chake, kudula kwa optoelectronic ndi njira yatsopano yopangira netiweki yotumizira ya DCI. M'tsogolomu, gawo la kuwala la netiweki yotumizira ya DCI likhoza kukhala ukadaulo wa SDN wopangidwa ndi ROADM+ north-south interface, ndipo njirayo ikhoza kutsegulidwa, kukonzedwa ndikubwezeretsedwanso mwachisawawa. Zidzakhala zotheka kugwiritsa ntchito zida zamagetsi zosakanikirana za opanga, kapena kugwiritsa ntchito ma interface a Ethernet ndi ma interface a OTN mosakanikirana pamakina omwewo a kuwala. Panthawiyo, magwiridwe antchito pankhani yakukula ndi kusintha kwa makina adzakwera kwambiri, ndipo gawo la kuwala lidzagwiritsidwanso ntchito. N'zosavuta kusiyanitsa, kasamalidwe ka netiweki kadzakhala komveka bwino, ndipo mtengo wake udzachepetsedwa kwambiri.
Kwa SDN, mfundo yaikulu ndi kayendetsedwe ka pakati ndi kugawa zinthu za netiweki. Ndiye, kodi ndi zinthu ziti za netiweki yotumizira ma DWDM zomwe zingayang'aniridwe pa netiweki yotumizira ma DCI yomwe ilipo?
Pali njira zitatu, njira, ndi bandwidth (mafupipafupi). Chifukwa chake, kuwala mogwirizana ndi kuwala + IP kumachitika mozungulira kayendetsedwe ndi kufalitsa mfundo zitatuzi.
Njira za IP ndi DWDM zimalekanitsidwa, kotero ngati ubale wofanana pakati pa ulalo wa IP logical ndi njira ya DWDM wakonzedwa pachiyambi, ndipo ubale wofanana pakati pa njira ndi IP uyenera kusinthidwa pambuyo pake, mutha kugwiritsa ntchito njira ya OXC. Njirayi imagwiritsidwa ntchito posintha mwachangu njira pamlingo wa millisecond, zomwe zingapangitse kuti gawo la IP lisadziwike. Kudzera mu kasamalidwe ka OXC, kasamalidwe ka njira yotumizira mauthenga pamalo aliwonse kangathe kuchitika, kuti mugwirizane ndi SDN yamalonda.
Kusintha kwa njira imodzi ndi IP ndi gawo laling'ono chabe. Ngati mukuganiza zosintha bandwidth pamene mukusintha njira, mutha kuthetsa vuto losintha zofunikira za bandwidth za mautumiki osiyanasiyana nthawi zosiyanasiyana. Sinthani kwambiri kuchuluka kwa kugwiritsa ntchito kwa bandwidth yomangidwa. Chifukwa chake, polumikizana ndi OXC kuti musinthe njira, kuphatikiza ndi multiplexer ndi demultiplexer ya ukadaulo wosinthasintha wa gridi, njira imodzi siilinso ndi kutalika kwa nthawi yokhazikika, koma imalola kuti iphimbe ma frequency range otheka, kuti ikwaniritse kusintha kosinthasintha kwa kukula kwa bandwidth. Kuphatikiza apo, pankhani yogwiritsa ntchito mautumiki angapo mu topology ya netiweki, kuchuluka kwa kugwiritsa ntchito ma frequency a DWDM system kumatha kuwonjezeredwa, ndipo zinthu zomwe zilipo zitha kugwiritsidwa ntchito pakukhuta.
Ndi mphamvu zoyendetsera zinthu ziwiri zoyambirira, kayendetsedwe ka njira ya netiweki yotumizira mauthenga kangathandize kuti netiweki yonse ikhale yokhazikika kwambiri. Malinga ndi makhalidwe a netiweki yotumizira mauthenga, njira iliyonse ili ndi njira zodziyimira payokha zotumizira mauthenga, kotero ndikofunikira kwambiri kuyang'anira ndikugawa njira pa njira iliyonse yotumizira mauthenga mogwirizana, zomwe zipereka njira yabwino kwambiri yogwiritsira ntchito njira zambiri, ndikuwonjezera kugwiritsa ntchito njira panjira zonse. Monga momwe zilili mu ASON, golide, siliva ndi mkuwa zimasiyanitsidwa ndi ntchito zosiyanasiyana kuti zitsimikizire kukhazikika kwa ntchito zapamwamba kwambiri.
Mwachitsanzo, pali netiweki ya mphete yokhala ndi malo atatu a data A, B, ndi C. Pali service S1 (monga intranet big data service), kuyambira A mpaka B mpaka C, yomwe imatenga mafunde 1 ~ 5 a netiweki iyi ya mphete, mafunde aliwonse ali ndi bandwidth ya 100G, ndipo nthawi ya ma frequency ndi 50GHz; pali service S2 (external network service), Kuyambira A mpaka B mpaka C, mafunde 6 ~ 9 a netiweki iyi ya mphete amakhala ndi anthu, mafunde aliwonse ali ndi bandwidth ya 100G, ndipo nthawi ya ma frequency ndi 50GHz.
Munthawi yanthawi zonse, mtundu uwu wa bandwidth ndi kugwiritsa ntchito njira kumatha kukwaniritsa zosowa, koma nthawi zina, mwachitsanzo, malo atsopano a data awonjezedwa, ndipo bizinesi ikufunika kusamutsa database munthawi yochepa, ndiye kuti kufunikira kwa intranet bandwidth munthawi ino kudzakhala kawiri, bandwidth yoyambirira ya 500G (5 100G), tsopano ikufunika bandwidth ya 2T. Kenako njira zomwe zili pamlingo wotumizira zitha kuwerengedwanso, ndipo njira zisanu za 400G zimayikidwa mu wave layer. Nthawi yofupikira ya njira iliyonse ya 400G imasinthidwa kuchokera ku 50GHz yoyambirira kupita ku 75GHz. Ndi flexible grating ROADM ndi multiplexer/demultiplexer, njira yonse pamlingo wotumizira, kotero njira zisanu izi zimakhala ndi zinthu za 375GHz spectrum. Pambuyo poti zinthu zomwe zili pamlingo wotumizira uthenga zakonzeka, sinthani OXC kudzera pa nsanja yoyang'anira pakati, ndikusintha njira zotumizira mauthenga zomwe zimagwiritsidwa ntchito ndi mafunde oyambilira a 1-5 a zizindikiro zautumiki wa 100G ku 5 yokonzedwa kumene ndi kuchedwa kwa millisecond. Njira yotumizira mauthenga ya 400G imakwera, kotero kuti ntchito yosinthira bandwidth ndi njira yolumikizira malinga ndi zofunikira zautumiki wa DCI yatha, zomwe zitha kuchitika nthawi yeniyeni. Zachidziwikire, zolumikizira za netiweki za zida za IP ziyenera kuthandizira ntchito zosinthira ma frequency a 100G/400G komanso ma signal frequency (wavelength), zomwe sizidzakhala vuto.
Ponena za ukadaulo wa netiweki wa DCI, ntchito yomwe ingathe kumalizidwa ndi kutumiza mauthenga ndi yotsika kwambiri. Kuti mupeze netiweki yanzeru kwambiri ya DCI, iyenera kuchitika limodzi ndi IP. Mwachitsanzo, gwiritsani ntchito MP-BGP EVPN+VXLAN pa intranet ya IP ya DCI kuti muyike mwachangu netiweki ya layer 2 kudutsa ma DC, yomwe ingakhale yogwirizana kwambiri ndi zida zomwe zilipo pa netiweki ndikukwaniritsa zosowa za makina enieni obwereka kuti aziyenda mosinthasintha kudutsa ma DC. ;Gwiritsani ntchito njira yolumikizira magawo pa netiweki yakunja ya IP ya DCI kuti mugwiritse ntchito njira yolumikizira magalimoto kutengera kusiyana kwa bizinesi yoyambira, kukwaniritsa zofunikira za cross-DC egress traffic visualization, kubwezeretsa njira mwachangu, ndi kugwiritsa ntchito bandwidth yayikulu; netiweki yolumikizira yomwe ili pansi pake imagwirizana ndi njira ya OXC yamitundu yambiri, Poyerekeza ndi ROADM yachikhalidwe yomwe ilipo, imatha kukwaniritsa ntchito yokonza njira yolumikizira mauthenga; kugwiritsa ntchito ukadaulo wosinthira mafunde osagwiritsa ntchito magetsi kumatha kuthetsa vuto la kugawikana kwa zinthu za channel spectrum. Kuphatikiza zinthu zapamwamba ndi zotsika pakuwongolera bizinesi ndi kutumiza mauthenga, kutumiza mauthenga mosinthasintha, ndi kugwiritsa ntchito bwino zinthu kudzakhala njira yosapeweka mtsogolo. Pakadali pano, makampani ena akuluakulu akunyumba akusamala kwambiri za nkhaniyi, ndipo makampani ena apadera oyambira kale akuchita kafukufuku ndi chitukuko cha zinthu zina zaukadaulo. Tikukhulupirira kuti tidzawona mayankho onse okhudzana ndi izi pamsika chaka chino. Mwina posachedwa, OTN idzasowanso m'ma network a carrier-class, ndikusiya DWDM yokha.
Nthawi yotumizira: Feb-15-2023