255.255.255.0 Maskaxda Subnet

Maaskarada subnet 255.255.255.0 cinwaanka ayaa ah maskaxda ugu caansan ee loo isticmaalo kombiyuutarada ku xiran shabakadaha Internetka (IPv4) . Marka laga reebo isticmaalka habka shabakadaha guryaha , waxaa laga yaabaa inaad sidoo kale la kulanto maaskarada this ee imtixaannada shahaadooyinka xirfadaha shabakada sida CCNA .

Subnets waxay u dhaqmaan sida dayrarka dijitalka ah, kala-soocida cinwaanka IP-cinwaanada unugyada yaryar. Farsamadani waxay yareyneysaa ciriiriga shabakadda waxayna u oggolaaneysaa helitaanka rukunka ah ee kuyaal hoose.

Maaskaro maskaxda ah ayaa tilmaamaya shaxda shakhsi ahaaneed.

255.255.255.0 iyo Subnetting

Subnets dhaqameed waxay la shaqeeyeen shabakado fasal oo qeexaya ciwaanada IP-ga mid ka mid ah shan fasal (Fasalka A / B / C / D / E) sida ku cad qiimaha lambarka IP-ga.

Maaskarada subnet 255.255.255.0 waxay u badashaa qiimaha ikhtiyaarka ah ee 32-bit:

0 lambar ee maskadani waxay ku xiran tahay xadka IP-ga ee hoos-8 bits ama ilaa 256 cinwaankani kiiskan. Tirooyin badan oo ka mid ah shabakadaha hoose ee yar-yar ayaa sidoo kale lagu qeexi karaa iyada oo wax ka beddelaysa maaskarada sida ku cad jadwalka hoose.

Subnets Subclasses oo ku saleysan 255.255.255 Prefix Maskaxda
Maaskaro Subnetworks Nodes / Subnet
255.255.255.0 1 254
255.255.255.128 2 126
255.255.255.192 4 62
255.255.255.224 8 30
255.255.255.240 16 14
255.255.255.248 32 6
255.255.255.252 64 2


Maaskaro maskaxda ah oo aan habooneyn (oo sidoo kale lagu magacaabo netmask ) ayaa sababa qaar ka mid ah noocyada xiriirinta shabakadaha .

Subnets iyo CIDR

Nidaamka caadiga ah ee caadiga ah, cinwaano badan oo aan la isticmaalin IP ayaa la burburiyay sababtoo ah bixiyeyaasha adeegga internetka iyo shirkadaha waaweyn ayaa bixiya cinwaanno aan la wadaagin.

Inta badan internetka ayaa markaa loo beddelay shabakad aan caadi ahayn oo IP ah si ay u taageeraan siyaasadaha qoondaynta dabacsan iyo in ay la qabsadaan baahida loo qabo internetka IPv4 ee 1990-maadkii.

Nidaamyada aan fasallada lahayn waxay u beddelaan matalaadda subnetka ee dhaqameed si ay u muujiyaan farriin ku saleysan lambarka 1 lambar ee maaskarada.

Interless Domain Routing shorthand Qoraallada IP-ka iyo mawduuca xiriirka la leh ee mawduuca ku xiran:

xxx.xxx.xxx.xxx/n

Halkan, n wuxuu u taagan yahay lambar u dhexeeya 1 illaa 31 taas oo ah tirada 1 bits maaskarada.

CIDR waxa ay taageertaa cinwaanka IP-ga aan ahayn fasalka iyo macaamiisha shabakadaha shabakadaha leh lambarrada taleefanka ee IP-ga oo ka madax bannaan fasalka caadiga ah. Routers oo taageera CIDR waxay aqoonsadaan shabakadahaan sida shakhsi shakhsiyadeed, inkasta oo ay u matalaan iskudubarro badan oo ka mid ah subnets.

Fasallada Shabakada

Ururka InterNIC oo maamula magacyada internetka ayaa kala qaybiya cinwaanada IP-ga fasallada. Inta badan calaamadahaasi waa fasalada A, B, iyo C. Shuruudaha C ee dhammaantood waxay isticmaalaan maaskaro maskaxeed oo caadi ah 255.255.255.0.

Adigoo isticmaalaya 255.255.255.0 sida IP Adrees

Inkasta oo lagu qeexay foomka lambarka IP lambarka, aaladaha shabakada waxay isticmaali karaan oo kaliya 255.255.255.0 maaskaro oo aan ahayn cinwaan IP ah. Isku day inaad isticmaasho lambarkan (ama lambarka IP ee ka bilaabma 255) adoo adeegsanaya cinwaanka qalabku wuxuu keenayaa xiriirka shabakadda IP in uu ku fashilmo sababtoo ah qeexida lambarka waxay ku kala duwan yihiin shabakadaha IP.