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Hloov txoj kev ntawm Hirschman keyboards

 

 

Hirschmanswitches hloov nyob rau hauv peb txoj kev hauv qab no:

https://www.tongkongtec.com/hirschmann/

Ncaj-dhau

Ncaj-los ntawm Ethernet keyboards tuaj yeem nkag siab zoo li kab matrix hloov nrog cov kab crisscross ntawm cov chaw nres nkoj. Thaum kuaj pom ib pob ntawv cov ntaub ntawv ntawm qhov chaw nres nkoj nkag, lub pob ntawv header raug kuaj xyuas, qhov chaw nyob ntawm pob ntawv tau txais, lub rooj tshawb nrhiav sab hauv dynamic tau pib, thiab qhov chaw nres nkoj sib txuas tau hloov dua siab tshiab. Cov ntaub ntawv pob ntawv txuas nrog ntawm kev sib tshuam ntawm cov tswv yim thiab cov zis, thiab cov ntaub ntawv pob ntawv txuas ncaj qha mus rau qhov chaw sib txuas kom paub txog kev hloov pauv. Vim tias nws tsis tas yuav khaws cia, qhov ncua sij hawm me me thiab kev hloov pauv sai heev, uas yog nws qhov zoo dua. Qhov tsis zoo yog vim tias cov ntsiab lus ntawm cov ntaub ntawv pob ntawv tsis tau txais kev cawmdim los ntawm Ethernet hloov, nws tsis tuaj yeem kuaj xyuas seb cov ntaub ntawv xa mus tsis raug, thiab qhov yuam kev nrhiav tsis tau. Vim tias tsis muaj cache, lub tswv yim / tso zis ports ntawm qhov sib txawv ceev tsis tuaj yeem txuas ncaj qha, thiab nws yooj yim poob.

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Khaws thiab xa mus

Cov khw muag khoom thiab xa mus rau hom yog hom kev thov hauv thaj chaw ntawm lub computer network. Nws thawj zaug khaws cov ntaub ntawv pob ntawv ntawm qhov chaw nres nkoj nkag, tom qab ntawd ua CRC (cyclic redundancy code verification) xyuas, tshem tawm qhov chaw nyob ntawm cov ntaub ntawv pob ntawv tom qab ua tiav cov pob ntawv yuam kev, thiab hloov mus rau hauv qhov chaw nres nkoj xa cov pob ntawv los ntawm lub rooj tshawb nrhiav. Vim li no, kev ncua sijhawm ntawm kev khaws cia thiab xa mus rau hauv cov ntaub ntawv ua tiav yog qhov loj, uas yog nws qhov tsis txaus, tab sis nws tuaj yeem ntes cov ntaub ntawv tsis raug nkag mus rau qhov hloov pauv thiab txhim kho kev ua haujlwm hauv network. Tshwj xeeb tshaj yog qhov tseem ceeb yog tias nws tuaj yeem txhawb kev hloov pauv ntawm cov chaw nres nkoj sib txawv ntawm qhov sib txawv thiab tswj kev sib koom ua haujlwm ntawm cov chaw nres nkoj siab ceev thiab cov chaw nres nkoj qis.

https://www.tongkongtec.com/hirschmann/

Fragment cais

Qhov no yog kev daws teeb meem ntawm thawj ob. Nws xyuas seb qhov ntev ntawm cov ntaub ntawv pob khoom puas txaus rau 64 bytes. Yog tias nws tsawg dua 64 bytes, nws txhais tau tias nws yog pob ntawv cuav thiab cov pob ntawv raug muab pov tseg; yog tias nws loj dua 64 bytes, pob ntawv xa tuaj. Txoj kev no tsis muab cov ntaub ntawv pov thawj. Nws cov ntaub ntawv ua nrawm nrawm dua li kev cia thiab xa mus, tab sis qeeb dua li kev hla ncaj qha. Qhia txog kev hloov pauv ntawm Hirschman hloov.

Tib lub sijhawm, Hirschman hloov tuaj yeem xa cov ntaub ntawv ntawm ntau qhov chaw nres nkoj. Txhua qhov chaw nres nkoj tuaj yeem suav tias yog ib qho kev ywj pheej ntawm lub cev sib txuas (ceeb toom: ntu tsis yog IP network), thiab cov khoom siv hauv lub network txuas nrog nws tuaj yeem txaus siab rau tag nrho cov bandwidth ntawm nws tus kheej yam tsis muaj kev sib tw nrog lwm yam khoom siv. Thaum node A xa cov ntaub ntawv mus rau node D, node B tuaj yeem xa cov ntaub ntawv mus rau node C tib lub sijhawm, thiab ob leeg muaj tag nrho cov bandwidth ntawm lub network thiab muaj lawv tus kheej kev sib txuas virtual. Yog tias siv 10Mbps Ethernet hloov, tag nrho cov tsheb khiav ntawm qhov hloov pauv yog sib npaug rau 2x10Mbps = 20Mbps. Thaum siv 10Mbps sib koom HUB, tag nrho cov tsheb khiav ntawm HUB yuav tsis pub tshaj 10Mbps.

https://www.tongkongtec.com/hirschmann/

Hauv luv, lubHirschman hloovyog lub network ntaus ntawv uas tuaj yeem ua tiav cov haujlwm ntawm encapsulating thiab xa cov ntaub ntawv xa mus raws li MAC chaw nyob paub. Hirschman hloov tuaj yeem kawm MAC chaw nyob thiab khaws cia rau hauv lub rooj chaw nyob sab hauv, thiab ncaj qha mus txog lub hom phiaj los ntawm kev hloov ib ntus ntawm tus neeg pib thiab lub hom phiaj txais ntawm cov ntaub ntawv ncej.

https://www.tongkongtec.com/hirschmann/

Post lub sij hawm: Dec-12-2024