Nthawi zambiri tamva za fiber opticmasiwichindi fiber optic transceivers. Zina mwa izo ndi fiber opticmasiwichindi zida zotumizirana ma network zothamanga kwambiri, zomwe zimatchedwanso fiber channelmasiwichindi SANmasiwichi. Poyerekeza ndi wambamasiwichi, amagwiritsa ntchito zingwe za fiber optic monga zida zotumizira. wapakati. Ubwino wa kufala kwa fiber optical ndi liwiro lachangu komanso mphamvu zotsutsana ndi kusokoneza. Pali mitundu iwiri ikuluikulu ya fiber opticmasiwichi. Imodzi ndi FCkusinthaamagwiritsidwa ntchito kulumikiza ku yosungirako. Wina ndi Ethernetkusintha, doko ndi mawonekedwe a fiber optical, ndipo mawonekedwe ake ndi ofanana ndi mawonekedwe amagetsi wamba, koma mawonekedwe a mawonekedwe ndi osiyana.
Pali mitundu itatu ya masinthidwe a fiber: masiwichi olowera, masiwichi amtundu wamagulu ogwira ntchito, ndi masiwichi amtundu wapakatikati. Chifukwa chake tiyeni tiyambire ndi gawo loyamba la fiber optickusintha!
1.core-level fiber optic switches
Zomwe zimatchedwa core-levelmasiwichi(omwe amatchedwanso otsogolera) nthawi zambiri amakhala pakatikati pa SAN yayikulu, kulumikiza mphepete zingapomasiwichikwa wina ndi mnzake kupanga netiweki ya SAN yokhala ndi madoko mazana. Pakatikatikusinthaangagwiritsidwenso ntchito ngati standalonekusinthakapena m'mphepetekusintha, koma ntchito zake zowonjezera komanso mawonekedwe amkati zimapangitsa kuti zizigwira ntchito bwino pamalo osungiramo zinthu zakale. Ntchito zina za pachimakekusinthazikuphatikizapo: kuthandizira ma protocol ena osati optical fiber (monga InfiniBand), chithandizo cha 2Gbps Fiber Channel, ndi mautumiki apamwamba a kuwala (mwachitsanzo: chitetezo, thunthu ndi chimango kusefa, etc.). Masinthidwe amtundu wa fiber optic nthawi zambiri amakhala ndi madoko ambiri, kuyambira madoko 64 mpaka madoko 128 ndi zina zambiri. Imagwiritsa ntchito kulumikizana kwakukulu kwamkati kuti iyendetse mafelemu a data okhala ndi bandwidth yayikulu. Cholinga chogwiritsa ntchito izimasiwichindikumanga maukonde okulirapo komanso kupereka bandwidth yayikulu. Amapangidwa kuti aziyendetsa ma siginecha mwachangu momwe angathere pakati pa madoko angapo ndikuchedwa kwafupi. Kuphatikiza apo, masiwichi apakatikati a fiber nthawi zambiri amagwiritsa ntchito ma board ozungulira otentha otengera "mtundu wa tsamba": bola ngatikusinthabolodi imayikidwa mu nduna, ntchito zatsopano zitha kuwonjezeredwa, komanso kukonza pa intaneti kungathekenso. Zofunika kukulitsidwa. Ma switch ambiri apakatikati samathandizira malupu olumikizirana kapena zida zina zolumikizidwa mwachindunji. Amangoganizira za kuthekera kosinthira koyambira. Chifukwa kupezeka ndikofunika kwambiri m'chilengedwe chonse, anthu ali okonzeka kugwiritsa ntchito ndalama zambiri pochotsa ntchito. Zigawo zonse za high-redundancymasiwichindizosowa, zomwe zimachotseratu mfundo imodzi yolephera ndikutsimikizira nthawi yayitali kwambiri. Ndalama zomwe zimagwiritsidwa ntchito pa redundancy nthawi zambiri zimagwiritsidwa ntchito pa ndege zobwerera kumbuyo, zida zamagetsi, mabwalo osafunikira, ndi mapulogalamu kuti azitha kupezeka. Mtundu uwu wakusinthaili ndi mabwalo ambiri omangidwira kuti athe kuthana ndi zolephera za hardware mkatikusintha. Pakatikatimasiwichimu fiber opticmasiwichikupereka kudalirika kwambiri ndi kachulukidwe doko. Pamalo opangira ma data okhala ndi zida zambiri za Fiber Channel, zinthu zotere sizingawonongeke, zosintha zapakati zosungira. Chifukwa chake, pamanetiweki ambiri omwe amapezeka kwambiri, muyenera kusankha ma netiweki apawiri omwe amapangidwa ndi ma core fiber switch.
2.workgroup-level fiber opticmasiwichi
Kusintha kwa fiber optic kumakupatsani mwayi wotsitsa ambirimasiwichimu Nsalu zazikulu. Mwa kulumikiza madoko amodzi kapena angapo a masiwichi awiri, madoko onse olumikizidwa ndi makusinthaamatha kuona chithunzi chapadera cha intaneti, ndipo mfundo iliyonse pa nsalu iyi imatha kuyankhulana ndi mfundo zina. Kupyolera mu cascading masiwichi, lalikulu, pafupifupi, anagawirakusinthaakhoza kukhazikitsidwa, ndipo mtunda umene ungatalike ndi waukulu kwambiri. Nsalu yopangidwa ndi masiwichi angapo imawoneka ngati nsalu yopangidwa ndi masiwichi osiyana. Madoko onsemasiwichiimatha kuwonedwa ndikufikiridwa ngati madoko ena onse pansalu ngati kulowa ma switch am'deralo. Seva yolumikizana ya dzina ndi ntchito yoyang'anira imalola kuwona ndikusintha zidziwitso zonse za Nsalu kudzera mu mawonekedwe amodzi. Chofunika kwambiri pakupanga nsalu yogawidwa ndikupeza bandwidth ya kugwirizana pakati pamasiwichi. Mlingo wogwira ntchito pakati pa madoko awiri aliwonse umakhudzidwa ndi bandwidth yothandiza ya kulumikizana pakati pamasiwichi, ndipo zingakhale zofunikira kugwiritsa ntchito maulumikizidwe angapo pakati pa masinthidwe kuti musunge bandwidth yofunikira. Zosintha za Workgroup Fiber Channel ndizochulukirapo komanso zosunthika. Gulu lantchitomasiwichiamagwiritsidwa ntchito m'njira zambiri, koma malo omwe amagwiritsidwa ntchito kwambiri ndi SAN. Kusintha kotereku kumatha kulumikizidwa palimodzi kudzera mumizere yolumikizirana pakati pa masinthidwe kuti apereke madoko ambiri. Mizere yolumikizirana pakati pa masinthidwe imatha kupangidwa padoko lililonse pa Fiber Channelkusintha. Komabe, ngati mukufuna kugwiritsa ntchito zinthu zochokera kwa ogulitsa angapo, muyenera kuwonetsetsa kuti zidazo zimagwirizana.
3.mlingo woloweramasiwichi
Kugwiritsa ntchito masiwichi olowera mu fiber opticmasiwichiimakhazikika m'magulu ang'onoang'ono ogwira ntchito okhala ndi madoko 8 mpaka 16. Ndizoyenera nthawi zokhala ndi mitengo yotsika komanso kufunikira kochepa pakukulitsa ndi kasamalidwe. Nthawi zambiri amagwiritsidwa ntchito m'malo mwa ma hubs, omwe angapereke ma bandwidth apamwamba ndikupereka maulumikizidwe odalirika kuposa ma hubs. Anthu nthawi zambiri samagula kulowa mulingomasiwichimosiyana, koma nthawi zambiri amawagula limodzi ndi magawo ena osinthira kuti apange yankho lathunthu losungirako. Masiwichi olowera amtundu wa fiber optic amapereka mwayi wocheperako wapadoko. Ngati ogwiritsa ntchito akugwiritsa ntchito zida zotsika ngati zokha, amatha kukumana ndi zovuta zowongolera.