Cibiyar sadarwa topology

Cibiyar sadarwa topology - wani dabaru kewaye musayar na kwakwalwa ko nodes sadarwa tashoshi. Topology aka kira na lissafi image dangantaka a cikin cibiyar sadarwa. Akwai wani babban yawan daban-daban topologies. Key - wani "bas", "Star", "zobe", a Bugu da kari, akwai ƙarin - "itace", "Ƙidaya", "grating" da sauransu.

Cibiyar sadarwa topology "Star" - shi ne irin wannan irin cibiyar sadarwa inda duk kwakwalwa suna da alaka ta tsakiyar cibiya. Irin rawa ta tsakiya kumburi kullum uwar garken ko cibiya. Wannan topology yana da amfani ko rashin amfani. A abũbuwan amfãni hada high yi, tun da wasan kwaikwayon na dukan cibiyar sadarwa dogara kawai a kan iyakar damar da tsakiyar naúrar. A amfani ne da rashin data collisions, wanda aka ruwaito a kan hanyar sadarwa, saboda gaskiyar cewa data musayar tsakanin tashar da uwar garken da aka yi da raba tashar da kuma ba ya shafar wasu kwakwalwa.

A tsakiyar kumburi - mafi m batu topology cibiyar sadarwa AMINCI aka ƙaddara AMINCI na tsakiyar kashi. Idan saboda wasu dalilai da tsakiyar kumburi daina aiki, da cibiyar sadarwa zai gushe aiki. A downside na "taurari" da kuma kira da babban kudin connectivity, domin kowane sabon Subscriber cibiyar sadarwa wajibi ne a gudanar da wani raba line.

Topology "zobe" networks kahu a kan gaskiyar cewa duk workstations haɗa zuwa layin rufe a cikin zobe, daga abin da ya zo da sunan. A sakonni a cikin "zobe" yana daukar kwayar cutar ne kawai a daya shugabanci da kuma sequentially ratsa duk kwakwalwa. Jigon da watsa bayanai da cewa na musamman alama an shige daga kwamfuta zuwa kwamfuta, har ya yi na'am ne workstation inda kana so ka canja wurin bayanai. The kwamfuta na'am da alama, Halicci kunshin a cikin abin da adireshin da kuma bayanai, sa'an nan ta aika da fakiti ga zobe. Bayani ya wuce ta kowane tashar har da shi ne a kusa da wanda adireshin ne m zuwa adireshin da mai karɓa. Bayan nan, mai karɓa gefen aika da amincewa na samu daga data Madogararsa. A abũbuwan amfãni daga wannan topology ne cewa aika saƙonnin ne quite tasiri, tun yana yiwuwa don aika saƙonni da yawa daya bayan daya. A tsawon wannan wata cibiyar sadarwa zai iya isa wani babba size ba tare da amfani da duk wani alama amplifiers. Babbar drawback ne low AMINCI na cibiyar sadarwa da wannan topology, saboda gazawar da wani daya kwamfuta zai fadi dukan tsarin. Don haɗa wani sabon abokin ciniki, shi wajibi ne don kashe dukan cibiyar sadarwa, kuma idan wani babban yawan biyan kuɗi, da yi slows saukar da yawa. A] aukacin wasan kwaikwayon na cibiyar sadarwa da aka ƙaddara da wasan kwaikwayon na slowest kwamfuta.

Topology "bas" cibiyar sadarwa ne cewa duk masu biyan kuɗi da alaka da wannan kowa tashar bayanai watsa. A daidai wannan lokaci, abokan ciniki iya zo a cikin lamba tare da wani online kwamfuta. A data aka aika zuwa ga dukan kwakwalwa, amma zai iya daukar bayanai kawai tashar wanda adireshin yayi daidai da adireshin da mai karɓa. Wannan cibiyar sadarwa topology yana da muhimman abũbuwan amfãni. Da fari dai, duk data kasance online da kuma samuwa ga kowane workstation, kuma abu na biyu, da kwakwalwa za a iya haɗa da kansa, da kuma na uku, irin wannan cibiyar sadarwa ne maras tsada saboda gaskiyar cewa ba lallai ba ne su kashe kudi a kan kwanciya ƙarin Lines a haɗa wani sabon Subscriber. Yana yana da irin wannan high AMINCI cibiyar sadarwa. Abin baƙin ciki, da watsa kudi ne quite low, tun da dukan data circulating a kan wannan bas, da kuma gudun dogara da yawan da alaka da abokan ciniki. A mafi girma da lambar, da ƙarin bayani yana daukar kwayar cutar mafi sannu a hankali. Tsaro a irin wannan cibiyar sadarwa ne low, saboda da bayanai a kan kowane workstation za a iya isa ga daga wani kwamfuta.

The sama topology Ethernet quite tasiri amma a yi sau da yawa amfani da haɗin lokaci daya da mahara topologies.