Iswitshi (Switshi) ithetha “iswitshi” kwaye sisixhobo senethiwekhi esisetyenziselwa ukudlulisela isignali yombane (ebonakalayo). Ingabonelela ngendlela ekhethekileyo yesignali yombane kuzo naziphi na ii-node ezimbini zenethiwekhi zeswitshi yokufikelela. Ezona switshi zixhaphakileyo ziiswitshi ze-Ethernet. Ezinye eziqhelekileyo ziiswitshi zelizwi zefowuni, iiswitshi zefayibha njalo njalo.
Imisebenzi ephambili yeswitshi ibandakanya idilesi ebonakalayo, i-topology yenethiwekhi, ukujonga iimpazamo, ulandelelwano lwesakhelo, kunye nolawulo lokuhamba kwesantya. Iswitshi ikwanazo nemisebenzi emitsha, efana nenkxaso ye-VLAN (Virtual Local Area Network), inkxaso yokuhlanganiswa kweekhonkco, kwaye eminye ikwanayo nomsebenzi we-firewall.
1. Njengee-hubs, iiswitshi zibonelela ngenani elikhulu leeports zokufaka iintambo, nto leyo evumela ukuba kufakwe iintambo kwi-topology yenkwenkwezi.
2. Njengee-repeaters, ii-hubs, kunye nee-bridges, iswitshi iphinda ivuselele isignali yombane yesikwere engajikwanga njengoko ithumela iifreyimu phambili.
3. Njengeebhulorho, iiswitshi zisebenzisa indlela efanayo yokudlulisela okanye yokucoca kwizibuko ngalinye.
4. Njengebhulorho, iswitshi yahlula inethiwekhi yendawo ibe ziidomeyini ezininzi zokungqubana, nganye kuzo ine-bandwidth ezimeleyo, ngaloo ndlela iphucula kakhulu i-bandwidth yenethiwekhi yendawo.
5. Ukongeza kwimisebenzi yeebhulorho, ii-hubs, kunye nee-repeaters, iiswitshi zibonelela ngeempawu eziphambili ngakumbi ezifana neenethiwekhi zengingqi ezingabonakaliyo (ii-VLAN) kunye nokusebenza okuphezulu.
Ixesha lokuthumela: Matshi-17-2022