Utshintshiselwano ligama eliqhelekileyo letekhnoloji ethumela ulwazi ukuba ludluliselwe kwindlela ehambelanayo ehlangabezana neemfuno ngesixhobo esizenzekelayo okanye esizenzekelayo ngokweemfuno zokuhambisa ulwazi kuzo zombini iziphelo zonxibelelwano.Ngokwezikhundla ezahlukeneyo zokusebenza, inokwahlulwa ibe yiswitshi yenethiwekhi yendawo ebanzi kunye nokutshintsha kwenethiwekhi yendawo.Ukutshintsha kwenethiwekhi yendawo ebanzi luhlobo lwezixhobo ezigqibezela umsebenzi wokutshintshiselana ngolwazi kwinkqubo yonxibelelwano.Ngoko ke, zeziphi iindlela zokudlulisela ukutshintshwa?

Indlela yokudlulisa:

1. Sika-ngokutshintsha
2. Gcina-kwaye-Phambili ukutshintsha
3. Ukutshintshela ngaphandle kweqhekeza

Ingaba ukuthunyelwa ngokuthe ngqo okanye ukuthunyelwa kwevenkile yindlela yokudlulisa imigangatho emibini, kwaye izicwangciso zabo zokuthumela zisekelwe kwindawo yokuya kuyo i-MAC (DMAC), akukho mmahluko phakathi kweendlela ezimbini zokudlulisa kule ngongoma.
Umehluko omkhulu phakathi kwabo xa bejongene nokuthunyelwa, oko kukuthi, indlela umtshintshi ejongene ngayo nobudlelwane phakathi kwenkqubo yokufumana kunye nenkqubo yokuthunyelwa kwepakethi yedatha.

Uhlobo lokugqithisela:
1. Sika
Ukutshintshela ngokuthe ngqo kwe-Ethernet ukutshintshela kunokuqondwa njengomgca wefowuni yematrix ewela ngokuthe nkqo naphakathi kwezibuko ngalinye.Xa ibhaqa ipakethe yedatha kwizibuko longeniso, ijonga iheader yepakethi, ifumana idilesi yendawo yokufikela yepakethi, iqala itafile yokukhangela eguquguqukayo yangaphakathi kwaye iyiguqulele kwizibuko lemveliso elihambelanayo, iqhagamshela kwindawo yokuhlangana yegalelo. kunye nemveliso, kwaye igqithisa ipakethe yedata ngqo kwizibuko elihambelanayo liqonda umsebenzi wokutshintsha.Ekubeni akukho kugcinwa kuyadingeka, ukulibaziseka kuncinci kakhulu kwaye utshintshiselwano lukhawuleza kakhulu, oluyinzuzo yalo.
Ukungalungi kwayo kukuba ngenxa yokuba umxholo wepakethi yedatha awugcinwanga ngokutshintsha kwe-Ethernet, ayikwazi ukujonga ukuba ipakethe yedatha edlulisiweyo ayilunganga, kwaye ayikwazi ukunika amandla okubona impazamo.Ngenxa yokuba akukho buffer, i-input/output ports enezantya ezahlukeneyo ayinakuqhagamshelwa ngokuthe ngqo, kwaye iipakethi zilahleka lula.

2. Gcina kwaye uPhambili (Gcina; Phambili)
Indlela yokugcina nokudlulisa yeyona ndlela isetyenziswa kakhulu kwindawo yothungelwano lwekhompyutha.Ihlola ipakethe yedatha ye-port yongeniso, ikhupha idilesi yendawo yepakethi yedatha emva kokucubungula ipakethe yephutha, kwaye iyiguqulele kwi-port yokuphuma ukuthumela ipakethi ngetafile yokujonga.Ngenxa yoko, indlela yokugcina kunye nokuhamba phambili inokulibaziseka okukhulu ekuqhutyweni kwedatha, okuyintsilelo yayo, kodwa inokwenza ukufumanisa impazamo kwiipakethi zedatha ezifaka ukutshintshwa kunye nokuphucula ngokufanelekileyo ukusebenza kwenethiwekhi.Kubaluleke kakhulu ukuba inokuxhasa ukuguqulwa phakathi kwamachweba eezantya ezahlukeneyo kunye nokugcina intsebenziswano phakathi kwamazibuko anesantya esiphezulu kunye namachweba aphantsi.

3. Isiqwenga sasimahla
Esi sisisombululo phakathi kwezi zibini zokuqala.Ihlola ukuba ubude bepakethi yedatha yanele kwi-bytes ye-64, ukuba ingaphantsi kwe-64 bytes, ithetha ukuba ipakethi yenkohliso, uze ulahle ipakethi;ukuba ingaphezulu kwe-64 bytes, thumela ipakethi.Le ndlela nayo ayinikezeli ukuqinisekiswa kwedatha.Isantya sokucwangcisa idatha sikhawuleza kunokugcina-kunye-phambili, kodwa sicotha kunokudlula ngokuthe ngqo.
Kungakhathaliseki ukuba ukuthunyelwa ngokuthe ngqo okanye ukuthunyelwa kwevenkile, yindlela yokudlulisa imigangatho emibini, kunye nezicwangciso zabo zokuthumela zisekelwe kwindawo yokuya kuyo i-MAC (DMAC).Akukho mahluko phakathi kweendlela ezimbini zokudlulisela kule ngongoma.Umehluko omkhulu phakathi kwabo xa bejongene nokuthunyelwa, oko kukuthi, indlela umtshintshi ejongene ngayo nobudlelwane phakathi kwenkqubo yokufumana kunye nenkqubo yokuthunyelwa kwepakethi yedatha.