Pūnaehana ʻāpana kūloko (LAN)
E pili ana i kahi hui kamepiula i haku ʻia me nā kamepiula lehulehu i hoʻopili ʻia ma kekahi wahi. ʻO ka maʻamau, aia i loko o kahi mau tausani mika ke anawaena. Hiki iā LAN ke hoʻomaopopo i ka hoʻokele faila, kaʻana like polokalamu noi, paʻi
Loaʻa nā hiʻohiʻona i ka kaʻana like ʻana o ka mīkini, ka hoʻonohonoho ʻana i loko o nā pūʻulu hana, ka leka uila a me nā lawelawe kamaʻilio fax, a ʻoi aku. Ua pani ʻia ka pūnaewele wahi kūloko a hiki ke haku ʻia ʻelua kamepiula ma ke keʻena.
Hiki iā ia ke komo i nā kaukani kamepiula i loko o kahi hui.
Pūnaehana ʻĀpana Laulā (WAN)
He hōʻiliʻili ia o nā pūnaewele lolouila e hoʻopaʻa ana i kahi ʻāpana nui. ʻO ka maʻamau ma nā panalāʻau, nā kūlanakauhale, a i ʻole kahi ʻāina. Aia i loko o kahi pūnaewele ākea nā subnet o nā ʻano nui like ʻole. Hiki i nā subnets
Hiki iā ia ke ʻano pūnaewele puni honua a i ʻole kahi pūnaewele ākea liʻiliʻi.
ʻO ka ʻokoʻa ma waena o ka pūnaewele puni honua a me ka pūnaewele ākea ākea
Aia ka ʻupena ʻāpana kūloko i loko o kekahi wahi, ʻoiai ʻo ka ʻāpana ākea ākea e pili ana i kahi ʻāpana nui. No laila pehea e wehewehe ai i kēia wahi? Eia kekahi laʻana, aia ke keʻena poʻo o kahi hui nui ma Beijing.
Pekina, a ua laha na lala a puni ka aina. Inā hoʻohui ka hui i nā lālā a pau ma o ka pūnaewele, a laila he lālā kahi pūnaewele kūloko, a ʻo ke keʻena nui holoʻokoʻa.
ʻO ka ʻoihana ʻoihana he pūnaewele ākea ākea.
He aha ka ʻokoʻa ma waena o ke awa WAN a me ke awa LAN o ke alalai?
ʻO ka mea alalai broadband o kēia lā he ʻano hui pū ʻia o ke ala ala + hoʻololi. Hiki iā mākou ke noʻonoʻo iā ia e like me nā mea ʻelua.
WAN: Hoʻohana ʻia no ka hoʻopili ʻana i nā helu IP waho, e pili ana i ka puka ʻana, a i mua i nā ʻeke ʻikepili IP mai ka interface LAN kūloko.
LAN: Hoʻohana ʻia e hoʻopili i ka helu IP kūloko. Aia i loko o ka LAN kahi hoʻololi. ʻAʻole hiki iā mākou ke hoʻohui i ke awa WAN a hoʻohana i karoutere like me ka mea maʻamauhoʻololi.
LAN uwea ole (WLAN)
Hoʻohana ʻo WLAN i nā nalu electromagnetic e hoʻouna a loaʻa i ka ʻikepili ma luna o ka lewa me ka ʻole o ka pono o ka media kelepona. Hiki ke hiki i ka 11Mbps ka mamao o ka lawe ʻana i ka ʻikepili o WLAN, a ʻo ka mamao o ka hoʻouna ʻana
Aia ma mua o 20km ka mamao. Ma ke ʻano he ʻokoʻa a i ʻole ka hoʻonui ʻia ʻana o nā uea uea kuʻuna, hoʻokuʻu ʻo LAN kelepona i nā poʻe mai kā lākou mau pākaukau a hiki iā lākou ke hana i kēlā me kēia manawa.
ʻO ka loaʻa ʻana o ka ʻike ma nā wahi ʻē aʻe e hoʻomaikaʻi i ka pono o ke keʻena o nā limahana.
Kūkākūkā ʻo WLAN me ka hoʻohana ʻana i ka hui hoʻolaha lekiō ISM (Industrial, Scientific, Medical). Hoʻohana ka maʻamau 802.11a no WLAN i ka band frequency 5 GHz a kākoʻo nui loa
ʻO 54 Mbps ka wikiwiki kiʻekiʻe, ʻoiai ke hoʻohana nei nā maʻamau 802.11b a me 802.11g i ka band 2.4 GHz a me nā wikiwiki kākoʻo a hiki i 11 Mbps a me 54 Mbps.
No laila he aha ka WIFI a mākou e hoʻohana pinepine ai e komo i ka Pūnaewele?
ʻO WIFI kahi protocol no ka hoʻokō ʻana i ka ʻupena uʻi (ʻoiaʻiʻo he protocol hoʻopaʻa lima), a ʻo WIFI kahi maʻamau no WLAN. Hana ʻia ka ʻoihana WIFI ma ka 2.4G a i ʻole 5G frequency band. 'ē aʻe
ʻO ka 3G/4G waho kahi pūnaewele uʻi ʻole, akā ʻokoʻa nā protocols a he kiʻekiʻe loa ke kumukūʻai!
Pūnaehana ʻĀpana Kūlana Kūikawā (VLAN)
ʻO ka LAN Virtual (VLAN) e pili ana i kahi ʻenehana pūnaewele e hiki ai i nā pūnaewele i loko o ka pūnaewele ke hoʻokaʻawale i nā subnets like ʻole e like me nā pono, me ka nānā ʻole i ko lākou wahi kino.
Eia kekahi laʻana, hiki i nā mea hoʻohana ma nā papahele likeʻole a ma nā keʻena likeʻole ke hoʻohui i nā LAN virtual likeʻole e like me ka mea e pono ai: ua māheleʻia ka papahele mua i ka māhele pūnaewele 10.221.1.0, a ua māheleʻia ka papaheleʻelua i loko.
10.221.2.0 ʻāpana pūnaewele, etc.
Ka manawa hoʻouna: Mar-19-2024
