Packet switching protocol kune IP uye X-25
Packet switching ndiyo nzira inoshandiswa nemamwe mapurogiramu emakombiyuta ekutumira dheta kune imwe nzvimbo yekune imwe nzvimbo kana kure kure. Mienzaniso yepakiti yekuchinja mitambo ndiyo Frame Relay , IP , uye X.25 .
How Packet Switching Works
Packet kuchinja kunosanganisira kuputsa data muzvikamu zvakasiyana-siyana izvo zvinozoiswa muzvikwata zvakagadziridzwa zvakatumidzwa zvinonzi map packets. Izvi zvinowanzoendeswa kubva kune imwe nzvimbo kuenda kune imwe nzvimbo uchishanda network switches uye routers uye ipapo data inowanikwazve pane iyo nzvimbo.
Pakati rimwe nerimwe rine mashoko ekutaura anoratidza iyo kombiyuta yokutumira uye inogamuchirwa. Kushandisa maateri, network switches uye routers vanoona kuti zvakanakisisa sei kutumira paketani pakati pe "hops" panzira iyo inosvika. Kune mahwendefa akasununguka seWireshark ekukubatsira kutora nekuona data kana zvichidikanwa.
Chii chinonzi Hop?
Mumakombiyuta ekutengesa, chikwata chinomiririra chikamu chimwe chegwara rakakwana pakati penzvimbo nekuenda. Paunenge uchikurukura paIndaneti, somuenzaniso, data inopfuura nepakati pemashandisirwo emubhatiri anosanganisira ma routers uye kushandura pane kutenderera zvakananga pane imwe tsambo. Chimwe nechimwe chakadaro chinokonzera dambudziko kudarika pakati pe-point-to-point network connection uye imwe.
Nhamba yekoti inomiririra nhamba yose yezvigadzirwa zvepa packet ye data inopfuura. Kazhinji kutaura, hops yakawanda iyo data packets inofanirwa kuyambuka kusvika pakuenda kwayo, hurukuro yekutengesa inowanikwa.
Network utilities like ping inogona kushandiswa kugadzirisa kuverenga kubhenda kune imwe nzvimbo yaenda. Ping inogadzira mapaketi anosanganisira munda wakachengeterwa kuverenga. Nenguva imwechete iyo mudziyo unogona kugamuchira mapepa aya, chigadziri ichocho chinoshandura pakiti, kuwedzera kukura kwechikwata chimwe. Mukuwedzera, chigadzirwa chacho chinofananidza chikwata chekuverenga maererano nechigadziro chakatarwa uye chinodzinga pakiti kana chikwata chacho chekwereti chakanyanya kukwirira. Izvi zvinodzivirira mapaketi kubva pakusingaperi achishamwaridzana neukomba nekuda kwekugadzirisa zvikanganiso.
Pros uye Cons ye Packet Switching
Packet kushandura ndiyo nzira yakasiyana yekushandura magedhi ekushandura anoshandiswa kare mumatareji efoni uye dzimwe nguva nesangano reSDN .
Kuenzaniswa nekutenderera kweseji, pakiti yekutengesa inopa zvinotevera:
- PRO. Kunyanya kushandiswa kushandiswa kwehuwandu hwetambhinji bandwidth nekuda kwekushandura mafungiro ekugadzirisa zviduku zviduku pane zvekugoverana zvakabatanidzwa.
- PRO. Packet kushandura mitambo inowanzova shoma yekuvaka semidziyo miduku inodiwa.
- PRO. Kuvimbika. Kana pakato risati rasvika sezvinotarisirwa panzvimbo yayo, iyo kombiyuta inogamuchira inogamuchira pakiti rimwe chete iripo uye inokumbira kuti iratidze.
- PRO. Packet switching inopa hurumende yekudzoka inofanirwa kunge imwe node iri parwendo rwayo inokundikana.
- CON. Nguva shomanana yekugamuchira mharidzo kubva panguva yaidiwa kuvhara uye nzira mapaketi. Pamusoro pemishandisirwo yakawanda, kunonoka hakusi kwenguva yakakwana yekuve yakakosha, asi pamabasa ekufambisa-shandiswa seyenguva-yevhidhiyo yevhidhiyo, teji yepamusoro yeUnited of Service (QoS) inowanzodiwa kuti ibudirire maitiro ehutano anodiwa.
- CON. Izvo zvinogona kukonzerwa nehutano hwehutano hunovapo nekuda kwekushandisa kwekugoverana kwepanyama. Zvinyorwa nezvimwe zvinhu zvakabatana mu packet switching network zvinofanira kurongeka nezvinofanira kuchengeteka zvakachengeteka.
- CON. Latency haisati yaitika.