Uea wikiwiki DACʻO ka (Direct Attach Cable) i unuhi nui ʻia ʻo ia ke kaula pololei, ke kaula keleawe hoʻopili pololei a i ʻole ke kaula wikiwiki. Ua wehewehe ʻia ʻo ia he papahana pili mamao pōkole haʻahaʻa e pani ana i nā modula optical. Loaʻa i nā wēlau ʻelua o ke kaula wikiwiki nā modula ʻAʻole hiki ke hoʻokaʻawale ʻia nā ʻākoakoa kaula, nā awa pani ʻole, nā poʻo modula a me nā kaula keleawe, akā i ka hoʻohālikelike ʻana me nā kaula optical module hana (Active Optical Cables), ʻaʻohe laser optical pipiʻi a me nā ʻāpana uila ʻē aʻe o nā modula hoʻohui ma nā kaula wikiwiki, no laila mālama nui i ke kumukūʻai a me ka hoʻohana ʻana i ka mana i nā noi mamao pōkole. Me nā wikiwiki Ethernet kiʻekiʻe, ka helu ao, ka Pūnaewele o nā Mea, a me nā kikowaena ʻikepili virtual, ua kau ʻia nā koi hou aku ma luna o nā mea lawelawe kikowaena ʻikepili. Aia ka wikiwiki o ka ʻikepili ma ke ala i 400G, no laila ma waho aʻe o ka pilina i loko o 3-5m i loko o ke kikowaena, hiki ke hoʻohana ʻia ʻo DAC (pono e hoʻohana i nā mea insulating kūikawā 5-7 mika e hoʻokō i nā koi hiʻohiʻona). ʻO ka pilina ma ʻō aku o kēia mau mamao e hoʻomaopopo pinepine ʻia e AOC.
10G SFP+ a i SFP+ wikiwiki kiʻekiʻe Uea
Hoʻohana ka 10G SFP+ a i SFP+ DAC i kahi hui kaula twinaxial passive a hoʻopili pololei i ka module SFP+, e hōʻike ana i ka density kiʻekiʻe, ka mana haʻahaʻa, ke kumukūʻai haʻahaʻa, a me ka latency haʻahaʻa.
He aha nā ʻano kaula wikiwiki 10G SFP+ a i SFP+ i loaʻa?
Ma keʻano laulā, aia ʻekolu ʻano o nā kaula wikiwiki 10G SFP+ a i SFP+:
10G SFP+ passive keleawe core uwea wikiwiki kiʻekiʻe (DAC),
10G SFP+ Keleawe Kope Kiʻekiʻe Keleawe (ACC),
10G SFP+ Kaula ʻŌnaehana Hana (AOC),
He kūpono lākou no nā pilina pūnaewele i loko o kahi rack a ma waena o nā racks pili a he kūpono loa ke kumukūʻai.
Hāʻawi ke kaula uila wikiwiki SFP + passive copper core i kahi pilina uila pololei ma waena o nā wēlau ʻelua o ke kaula like, a hiki i ka mamao o ka pilina ke hiki i 12m. Eia nō naʻe, ma muli o ke kaumaha o ke kaula a me ka noʻonoʻo ʻana i ka pilikia o ka pono o ka hōʻailona, ʻo kona lōʻihi hoʻohana ʻia ua kaupalena ʻia ma waena o 7m a me 10m.
40G QSFP+ a i QSFP+ Uea wikiwiki kiʻekiʻe
ʻO ke kaula uila wikiwiki 40G (DAC) e pili ana i kahi kaula hoʻohui me nā transceivers fiber optic ma nā wēlau ʻelua, hiki ke hoʻokō i ka hoʻoili ʻikepili 40Gbps a he hopena hoʻohui wikiwiki kūpono ia. Hiki ke hoʻokaʻawale ʻia nā kaula uila wikiwiki 40G maʻamau i ʻekolu ʻano: 40G QSFP+ a i QSFP+DAC, 40GQSFP+ a i 4*SFP+DAC, a me 40GQSFP+ a i 4XFP+DAC.
Ua haku ʻia ʻo 40G QSFP+ a i QSFP+ DAC me ʻelua mau transceiver optical 40G QSFP+ a me nā uea keleawe. Hiki ke hoʻohana ʻia kēia uwea wikiwiki e hoʻokō i ka pilina o nā awa 40G QSFP+ e kū nei i nā awa 40G QSFP+, ma ke ʻano maʻamau i loko o 7m wale nō ka mamao.
ʻO 40G QSFP+ a i 4×SFP+ DAC i haku ʻia me hoʻokahi mea hoʻololi optical 40G QSFP+, uea keleawe koʻikoʻi a me ʻehā mau mea hoʻololi optical 10G SFP+. ʻO kekahi ʻaoʻao he interface 40G QSFP+, kahi e hoʻokō ai i nā koi o SFF-8436, a ʻo kekahi ʻaoʻao he ʻehā mau interface 10G SFP+. , e like me nā koi o SFF-8432, hoʻohana nui ʻia e hoʻokō i ka pilina ma waena o nā lako 40G a me 10G (NIC/HBA/CNA, nā lako hoʻololi a me ke kikowaena), e like me nā koi o ka mea kūʻai aku no ka lōʻihi o nā kaula ma nā wēlau ʻelua, ma ke ʻano maʻamau i loko o 7m wale nō. ʻO ka mamao, i kēia manawa ka mea waiwai loa a maʻalahi hoʻi e hoʻokō i ka hoʻololi ʻana o ka puka hoʻololi.
ʻO ka 40G QSFP+ a i 4XFP DAC ua haku ʻia me hoʻokahi transceiver optical 40G QSFP+, uea keleawe kumu a me ʻehā mau transceiver optical 10G XFP. ʻOiai ʻaʻohe o ka transceiver fiber optic XFP i ke kūlana uwea keleawe DAC, haʻahaʻa ka uku hōʻailona i hāʻawi ʻia e ka hāmeʻa, a nui loa ka nalowale o ke kaula ponoʻī. Hiki ke hoʻohana wale ʻia no ka hoʻoili mamao pōkole, ma ke ʻano maʻamau i loko o kahi mamao o 2m. No laila, hiki ke hoʻohana ʻia kēia uwea wikiwiki no ka hoʻohui ʻana i nā awa 40G QSFP+ e kū nei i 4 mau awa XFP.
Uea wikiwiki kiʻekiʻe 25G SFP28 a i SFP28
Hiki i ka 25G SFP28 a i ka SFP28 DAC ke hāʻawi i nā mea kūʻai aku me ka hiki ke hoʻopili ʻikepili bandwidth kiʻekiʻe 25G, e like me ke kūlana IEEE P802.3by Ethernet a me SFF-8402 SFP28, a hoʻohana nui ʻia i nā kikowaena ʻikepili a i ʻole nā hiʻohiʻona ʻōnaehana kikowaena supercomputing
100G QSFP28 a i QSFP28 Kaula wikiwiki kiʻekiʻe
Hiki i ka 100G QSFP28 a i ka QSFP28 DAC ke hāʻawi i nā mea kūʻai aku me ka hiki ke hoʻopili ʻikepili bandwidth kiʻekiʻe 100G, e hāʻawi ana i nā kahawai duplex 4, hiki i kēlā me kēia kahawai ke kākoʻo a hiki i ka helu hana 25Gb/s, a ʻo ka bandwidth aggregation he 100Gb/s, e like me ka kikoʻī SFF-8436, i hoʻohana ʻia ma ka pilina ma waena o nā polokalamu me nā awa QSFP28.
100G QSFP28 a i 4 * SFP28 Uea wikiwiki kiʻekiʻe
ʻO kekahi ʻaoʻao o ka 100G QSFP28 a i 4 SFP28 DAC he 100G QSFP28 interface, a ʻo kekahi ʻaoʻao he 4 25G SFP28 interfaces, hiki ke hāʻawi i nā mea kūʻai aku me nā hiki ke hoʻopili ʻikepili kiʻekiʻe 100G, e like me SFF-8665/SFF-8679, IEEE 802.3bj a me InfinibandEDR standards, Hoʻohana nui ʻia i nā kikowaena ʻikepili a i ʻole nā hiʻohiʻona ʻōnaehana kikowaena super computing.
Ka manawa hoʻouna: ʻOkakopa-18-2022