Ma Algorithm Oyendetsera Ma Networks
Kutumiza njira ndi gawo lofunika kwambiri pakupanga ndi kugwiritsa ntchito maukonde a makompyuta. Kutumiza njira kumatanthauza njira yodziwira njira yoyenera kapena njira kuchokera pamalo amodzi kupita kwina mkati mwa netiweki. Njira yotumizira njira ndi njira yomwe ma rauta amagwiritsa ntchito kuti adziwe njira yabwino kwambiri mkati mwa netiweki. Nkhaniyi ifufuza ma algorithms osiyanasiyana otumizira njira omwe amagwira ntchito yofunika kwambiri pakugwira ntchito kwa netiweki, kuphatikiza mtunda wa vector, link-state, ndi ma algorithms osakanikirana.
Pendauluan
Mu netiweki yolumikizirana, deta iyenera kudutsa m'malo angapo apakati kuti ifike komwe ikupita. Mfundo iliyonse mwa izi imadziwika kuti node, ndipo njira yotumizira deta pakati pa ma node awa imafuna njira yotumizira deta. Pogwiritsa ntchito njira yotumizira deta, rauta imatha kudziwa njira yothandiza komanso yachangu kwambiri yotumizira ma phukusi a deta.
Ma algorithm oyendetsera ntchito amagwira ntchito potengera zinthu zingapo monga mtunda, mtengo, bandwidth, kuchedwa, katundu, ndi zina zambiri. Kusankha algorithm yoyenera yoyendetsera ntchito ndikofunikira kwambiri kuti netiweki igwire bwino ntchito komanso kudalirika.
Magulu a Algorithm Yoyendetsera Njira
Ma algorithms oyendetsera amatha kugawidwa m'magulu angapo kutengera zofunikira zina, monga njira yosinthira chidziwitso, mtundu wa netiweki yothandizira, ndi magawo owongolera.
1. Kachitidwe ka Vekitala ya Kutali
Njira yodziwira ma algorithm a Distance Vector ndi imodzi mwa njira zoyambirira komanso zosavuta zoyendetsera ma routing. Chitsanzo chodziwika bwino cha njira iyi ndi Routing Information Protocol (RIP).
Mfundo Zoyambira
Njira imeneyi imagwira ntchito mwa kukhala ndi rauta iliyonse yosungira tebulo loyendetsera lomwe lili ndi njira zingapo zomwe zingatheke komanso kusonyeza mtunda wopita kumalo enaake. Matebulo awa amasinthidwa nthawi ndi nthawi potumiza zambiri za njira kwa oyandikana nawo a rauta. Njira yosinthirayi imaphatikizapo magawo atatu akuluakulu:
- Kuyambitsa: Rauta iliyonse imadziwa kuti mtunda wake ndi zero ndipo mtunda wopita ku rauta ina iliyonse yolumikizidwa nayo ndi mtengo wa ulalo umenewo.
– Kusinthana kwa Njira: Rauta iliyonse nthawi ndi nthawi imatumiza tebulo lake la njira ku ma rauta apafupi.
– Zosintha pa Tebulo: Rauta iliyonse imalandira zambiri kuchokera kwa anansi ake, ndipo ngati yapeza njira yaifupi yopita komwe ikupita, imasintha tebulo lake la njira.
Ubwino ndi Kuipa kwake
Ubwino waukulu wa njira ya Distance Vector ndi kuphweka kwake. Komabe, ili ndi zovuta zingapo, monga mavuto olumikizana pang'onopang'ono komanso kuthekera kwa ma routing loops, pomwe deta imazungulira nthawi zonse pa netiweki popanda kufika komwe ikupita.
2. Algorithm ya Boma la Link
Pofuna kuthana ndi zofooka za Distance Vector, ma algorithm a Link State adapangidwa. Chitsanzo cha kukhazikitsa kwa algorithm iyi ndi Open Shortest Path First (OSPF).
Mfundo Zoyambira
Mu njira iyi, rauta iliyonse ili ndi chithunzi chonse cha topology ya netiweki ndipo imawerengera njira yabwino kwambiri kutengera zomwezo. Masitepe onse mu njira ya Link State ndi awa:
- Kuyambitsa: Rauta iliyonse imapereka malo olumikizirana ndi anansi ake onse apamtima, kuphatikiza mtengo wa ulalo.
– Kusinthana kwa Chidziwitso: Ma router amafalitsa zambiri za link state ku ma router ena onse omwe ali mu netiweki kudzera mu mapaketi a Link State Advertisements (LSA).
– Kupanga Mapu a Netiweki: Ndi ma LSA omwe alandiridwa, rauta iliyonse imapanga mapu a netiweki athunthu.
– Kuwerengera Njira: Mapu athunthu a netiweki akapangidwa, njira ya Dijkstra kapena njira yofanana nayo imagwiritsidwa ntchito kuwerengera njira yaifupi kwambiri yopita komwe mukufuna kupita.
Ubwino ndi Kuipa kwake
Ma algorithm a Link-state ndi achangu kwambiri akamalumikizana ndipo amalimbana kwambiri ndi ma routing loops. Komabe, ndi ovuta kwambiri ndipo amafunikira zinthu zambiri, kuphatikizapo kukumbukira ndi kuwerengera.
3. Kachitidwe Kosakanikirana
Ma algorithms a hybrid routing amaphatikiza zinthu zabwino kwambiri za Distance Vector ndi Link State. Chitsanzo chimodzi cha algorithm yosakanikirana ndi Enhanced Interior Gateway Routing Protocol (EIGRP).
Mfundo Zoyambira
Mwachitsanzo, EIGRP imagwiritsa ntchito gawo la Distance Vector kufalitsa zambiri za njira komanso imaphatikizapo zinthu zina za Link State, monga zosintha za topology pang'ono ndi kuwerengeranso pang'ono. Izi zimalola EIGRP kuti:
- Zimapanga kulumikizana mwachangu kuposa ma protocol a Distance Vector oyera.
- Imapewa katundu wokwera kwambiri womwe umapezeka kwambiri mu ma protocol a Link State.
Ubwino ndi Kuipa kwake
Ma algorithms osakanikirana amapereka mgwirizano pakati pa liwiro la kulumikizana ndi kugwiritsa ntchito bwino zinthu. Komabe, kukhazikitsidwa kwawo ndi kovuta kwambiri kuposa algorithm yosavuta ya Distance Vector.
Magawo a Metric mu Routing
Kusankha njira yoyenera kumadalira paziwerengero zingapo zomwe zingagwiritsidwe ntchito ndi njira yoyendetsera:
– Mtunda: Kawirikawiri umawerengedwa mu “kuchuluka kwa kugwedezeka” kapena kulumpha pakati pa ma node.
– Bandwidth: Imapereka njira zokhala ndi mphamvu zambiri.
- Kuchedwa: Sankhani njira kutengera nthawi yochepa yoyendera.
- Kudalirika: Ikani patsogolo njira zokhazikika komanso zodalirika.
– Katundu: Amagawa magalimoto mofanana kuti apewe kudzaza katundu.
Ma protocol ambiri amakono oyendetsera maulendo amalola kugwiritsa ntchito kuphatikiza kwa ziwerengero zingapo kuti adziwe njira yabwino kwambiri.
Mapeto
Ma algorithm oyendetsera maukonde amagwira ntchito yofunika kwambiri pakugwira ntchito bwino komanso kudalirika kwa maukonde apakompyuta. Sikuti amangosankha njira yoyenera yotumizira deta komanso amasintha malinga ndi kusintha kwa maukonde. Kusankha bwino kwa algorithm yoyendetsera maukonde kumadalira zosowa zenizeni za netiweki yomwe ikukambidwa, kuphatikizapo kukula, kupezeka kwa zinthu, kapena njira zina.
Mu dziko lomwe likusintha nthawi zonse, kumvetsetsa bwino ma algorithms a routing ndi momwe amagwiritsidwira ntchito ndi ndalama zofunika kwambiri kwa akatswiri a netiweki. Popeza pali ma algorithms osiyanasiyana omwe alipo, kuphatikizapo Distance Vector, Link State, ndi ma algorithms osakanizidwa, pali yankho loyenera pafupifupi vuto lililonse la netiweki.
