[Aipuwaton] Ulwazi olubalulekile lonjiniyela benethiwekhi: Ukushintshwa kwe-Mastering Core Core

Yini izintambo eziyi-8 kukhebula le-Ethernet

Esikhathini esingokobunjiniyela benethiwekhi, ukushintshwa okuqondayo okuyisisekelo kubalulekile ekuqinisekiseni ukuphatha idatha efanelekile kanye nokuxhumana okungenamthungo. Ukushintshwa komgogodla kusebenza njenge-backbone yenethiwekhi, kusiza ukudluliswa kwedatha phakathi kwamanethiwekhi ahlukene ahlukahlukene. Le ndatshana ibeka imiqondo eyisithupha yesisekelo njalo unjiniyela wenethiwekhi kufanele aqonde ukuze akwazi ukushintshwa kwawo okushintshiwe futhi athuthukise ukusebenza kwenethiwekhi yonke.

Ukuqonda i-Backplane Bandwidth

I-Backplane Bandwidth, okubizwa nangokuthi umthamo wokushintshana, yidatha ephezulu yedatha phakathi kwe-interface ye-interface kanye nebhasi ledatha. Cabanga njengenani eliphelele lemigwaqo emizileni edlula enye nenye isho ukuthi ithrafikhi ethe xaxa ingageleza kahle. Njengoba kunikezwe ukuthi yonke ukuxhumana kwePort kudlula emuva kwangemuva, leli bandwidth livame ukwenza njengebhodlela ngesikhathi sezimoto eziphakeme. Uma kukhudlwana i-bandwidth, imininingwane eminingi ingaphathwa ngasikhathi sinye, okuholela ekushintshisaneni kwedatha okusheshayo. Ngakolunye uhlangothi, i-bandwidth ekhawulelwe izokwehlisa ukucubungula idatha.

Ifomula ebalulekile:
I-Backplane Bandwidth = Inani lamachweba × 2

Isibonelo, i-switch efakwe amachweba angama-24 asebenza ku-1 GBPS kungaba ne-bandwidth yangemuva ye-48 GBPS.

Amanani wokudlulisela phambili wepakethe wesendlalelo 2 nesendlalelo 3

Idatha kunethiwekhi iqukethe amaphakethe amaningi, ngalinye lidinga izinsiza zokucubungula. Izinga lokudlulisela phambili (ukugcwala) libonisa ukuthi amaphakethe amangaki angaphathwa ngesikhathi esifanele, ngaphandle kokulahleka kwepakethe. Lesi sinyathelo sifana nokugeleza kwethrafikhi ebhulohweni futhi kuwukusebenza okusebenzayo kwe-metric kokushintshwa kwesendlalelo 3.

Ukubaluleka kokushintshwa kwejubane le-Line:
Ukuqeda amabhodlela e-Network, ukushintshwa kufanele kufinyelelwe ukushintshana okusheshayo, okusho ukuthi isilinganiso sabo sokushintsha sihambelana nezinga lokudlulisa lemininingwane ephumayo.

Ukubalwa kokusebenzisa:
Ukusebenzisa (MPPS) = Inani lamachweba ayi-10 gbps × 14.88 ama-MPPs + Inombolo yamachweba angu-1 gbps × 1.488 ama-MPP + Inombolo yamachweba ayi-100 mbps × 0.1488 ama-MPP.

Ukushintshwa okunamachweba angama-24 1 GBPS kumele kufinyelelwe ubuncane be-35.71 MPP ukwenza lula ukushintshana ngepakethe okungavinjelwe kahle.

Ukwehla: Ukuhlela Ikusasa

I-Scalability ifaka ubukhulu obukhulu obukhulu:

Isibalo se-Slot

Inani lama-slots ekushintsheni linquma ukuthi mangaki amamojula wokusebenza futhi abonakalayo angafakwa. Imodyuli ngayinye ihlala i-slot, ngaleyo ndlela ikhawula inani eliphakeme lamachweba okushintshana kungasekela.

Izinhlobo zemodyuli

Uhla oluhlukile lwezinhlobo zemodyuli ezisekelwayo (isib. Isibonelo, amamojula e-LAN kufanele afake amafomu ahlukahlukene afana ne-RJ-45 ne-GBIC ukuze abheke izidingo ezihlukile zokuxhumana.

I-Layer 4 Shintsha: Ukuthuthukisa ukusebenza kwenethiwekhi

Isendlalelo 4 Ukushintsha i-ExpeDedites Ukufinyelela kuzinsizakalo zenethiwekhi ngokuhlola hhayi amakheli e-MAC nje noma amakheli we-IP, kepha futhi nezinombolo zamachweba zesicelo se-TCP / UDP. Yakhelwe ngqo izinhlelo ze-intranet ze-intranet ephezulu, ungqimba 4 ukushintshanisa okuthuthukisayo akuwona kuphela ukulinganisa kuphela kepha futhi kunikeza izilawuli ezisuselwa kuhlobo lwesicelo ne-ID yomsebenzisi. Lesi sikhundla ungqimba 4 sishintshana njengamanetha okuphepha afanelekayo ekufinyeleleni okungagunyaziwe kwamaseva abucayi.

Module redundancy: Ukuqinisekisa ukuthembeka

I-Redundancy iyisihluthulelo sokugcina inethiwekhi eqinile. Amadivaysi enethiwekhi, kufaka phakathi ukushintshwa kwe-CORE, kufanele abe namakhono akwamukelekayo ukunciphisa isikhathi sokuphumula ngesikhathi sehluleka. Izingxenye ezibalulekile, ezinjengabaphathi kanye namamojula wamandla, kufanele abe nezinketho ze-Failover ukuqinisekisa ukusebenza kwenethiwekhi ezinzile.

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I-Routing Redundancy: Ukuqinisa Ukuqina Kwenethiwekhi

Ukuqalisa ukusebenza kwe-HSRP kanye ne-VRRP Protocols kuqinisekisa ukulinganisa okusebenzayo kokulinganisa kanye nama-backups ashisayo amadivayisi aphezulu. Uma kwenzeka ukwehluleka kokushintsha ngaphakathi kokusetha okuhlanganisiwe noma okuhlanganisiwe okuhlanganisiwe, uhlelo lungashintshela ngokushesha ngezinyathelo zokusekelayo, luqinisekise ukwehla kwamandla angenamthungo kanye nokugcina ubuqotho benethiwekhi yonke.

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Ukugcina

Ukufaka le mininingwane yokushintshwa kwe-CORE ku-repertoire yakho yobunjiniyela benethiwekhi kungathuthukisa kakhulu ukusebenza kwakho kanye nokusebenza kahle ekuphatheni ingqalasizinda yenethiwekhi. Ngokubamba imiqondo efana ne-bandwidth yangemuva, amanani okudlulisela phambili ngepakethe, ukushintshwa kwesendlalelo, ukushintshwa kwesendlalelo, amaphrothokholi wokuphinda, uzibeka ngaphambi kwejika lomhlaba oqhutshwa ngedatha.

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Isikhathi sePosi: Jan-16-2025