Video: Dab tsi yog tus tswv tsev ntau tshaj plaws hauv Class C network?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Class C Networks (/24 Prefixes)
Nws yog 21-ntsis network naj npawb nrog 8-bit tus xov tooj . Qhov no chav kawm txhais a siab kawg 2, 097, 152(2 21) /24 tes hauj lwm . Thiab txhua tus network txhawb nqa mus txog 254 (2 8 -2) tus tswv . Tag nrho chav kawm C network sawv cev 2 29 (536, 870, 912) chaw nyob; yog li nws tsuas yog 12.5% ntawm tag nrho IPv4.
Tsis tas li ntawd, muaj pes tsawg tus tswv tuaj yeem txhawb nqa Class C network?
Lub tswv yim tseem ceeb: Hauv "chav kawm" IP addressingscheme, a Chav kawm A network muaj chaw nyob txog 16 lab network interfaces; a Chav kawm B txog 65,000; thiab a Chav Kawm C , 254. Koj ua tau pom, muaj qhov tsis sib xws ntawm tus lej ntawm tus tswv muaj rau txhua tus network hauv txhua qhov no chav kawm.
Kuj Paub, Class C network yog dab tsi? Class C Network Txhais. A Chav Kawm Cnetwork yog ib qho network nyob rau hauv 32-ntsis, IPv4 addressingscheme uas nws thawj peb cov khoom, lub npe hu ua high-order bits, yog 110. Qhov no ua rau muaj qhov siab tshaj plaws ntawm 2, 097, 152 tes hauj lwm , txhua tus tuaj yeem muaj qhov siab tshaj plaws ntawm 254 tus tswv.
Ua raws li qhov no hauv kev xav, pes tsawg tus IP chaw nyob hauv Class C network yog dab tsi?
Class C IP chaw nyob ntau los ntawm 192.0.0.x rau 223.255.255.x. Lub default subnet mask rau Chav Kawm C yog 255.255.255.x. Chav Kawm C ua 2097152 (221) Network chaw nyob thiab 254 (28-2) Host chaw nyob.
Muaj pes tsawg tus tswv hauv ib lub network hauv txhua chav kawm ntawm IP chaw nyob tuaj yeem muaj nyob?
Table 2-1 IP Chaw Nyob Muaj rau Internet Hosts
| Chaw Nyob | Thawj Octet Range | Number of Hosts Per Network |
|---|---|---|
| Chav Kawm A | 0 rau 126 | 16, 777, 214 |
| Chav B | 128-191 Ib | 65, 534 |
| Chav Kawm C | 192-223 Ib | 254 |
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