He aha ka IEEE 802.3?

He pūʻulu hana ʻo IEEE 802.3 i kākau i ka Institute of Electrical and Electronics Engineers (IEEE) standard set , e wehewehe ana i ka mana hiki ke hoʻohana ʻia (MAC) ma nā papa pili kino a me ka ʻikepili o Ethernet uea.ʻO kēia ka mea maʻamau i ka ʻenehana ʻāpana kūloko (LAN) me kekahi mau noi ākea ākea (WAN).E hoʻopaʻa i nā pilina kino ma waena o nā nodes a me nā mea hana ʻenehana (hubs, switch, routers) ma o nā ʻano like ʻole o ke keleawe a i ʻole ke kelepona optical.

ʻO 802.3 kahi ʻenehana e kākoʻo ana i ka hoʻolālā pūnaewele IEEE 802.1.802.3 no ka wehewehe ʻana i kahi ala komo LAN me CSMA/CD.

He aha ka Subnet Mask?

Ua kapa ʻia ka subnet mask he mask network, address mask, a i ʻole subnetwork mask.Hōʻike ia i nā bits o kahi IP address e ʻike ai i ka subnet o ka host a me nā bits e ʻike i ka bitmask o ka host.ʻAʻole hiki i ka subnet mask ke noho wale.Pono e hoʻohana pū me ka helu IP.

ʻO ka subnet mask he helu 32-bit e uhi ana i kahi ʻāpana o kahi IP address e hoʻokaʻawale i ka ID pūnaewele mai ka ID host, a hōʻike inā aia ka IP address ma kahi LAN a i ʻole WAN.