Ke maopopo nei iaʻu ua ʻike ʻoe i ka hakakā ma waena o Network Tap (Test Access Point) a me ka mea kālailai puka kuapo (SPAN port) no nā kumu nānā pūnaewele. Loaʻa iā lāua ʻelua ka hiki ke hoʻohālike i ke kaʻa ma ka pūnaewele a hoʻouna iā ia i nā mea hana palekana ma waho o ka band e like me nā ʻōnaehana ʻike komo hewa, nā mea hoʻopaʻa inoa pūnaewele, a i ʻole nā mea kālailai pūnaewele. Hoʻonohonoho ʻia nā awa span ma nā kuapo ʻoihana pūnaewele nona ka hana hoʻohālike awa. He awa hoʻolaʻa ia ma kahi kuapo i mālama ʻia e lawe ana i kahi kope aniani o ke kaʻa pūnaewele mai ke kuapo e hoʻouna i nā mea hana palekana. ʻO ka TAP, ma ka ʻaoʻao ʻē aʻe, he mea hana e hāʻawi mālie i ke kaʻa pūnaewele mai kahi pūnaewele i kahi mea hana palekana. Loaʻa iā TAP ke kaʻa pūnaewele ma nā ʻaoʻao ʻelua i ka manawa maoli a ma kahi kahawai kaʻawale.
Eia nā pono nui ʻelima o TAP ma o ke awa SPAN:
1. Hopu ʻo TAP i kēlā me kēia pūʻolo!
Hoʻopau ʻo Span i nā packets i hōʻino ʻia a me nā packets i liʻiliʻi ma mua o ka nui liʻiliʻi. No laila, ʻaʻole hiki i nā mea hana palekana ke loaʻa nā kaʻa āpau no ka mea hāʻawi nā awa span i ka mea nui i ke kaʻa pūnaewele. Eia kekahi, ua hōʻuluʻulu ʻia ke kaʻa RX a me TX ma kahi awa hoʻokahi, no laila ʻoi aku ka nui o ka hāʻule ʻana o nā packets. Hopu ʻo TAP i nā kaʻa ʻelua ala ma kēlā me kēia awa pahuhopu, me nā hewa awa.
2. Hoʻonā hana piha loa, ʻaʻohe hoʻonohonoho IP a i ʻole ka lako mana e pono ai
Hoʻohana nui ʻia ka Passive TAP i nā pūnaewele fiber optic. Ma ka passive TAP, loaʻa iā ia ke kaʻa mai nā ʻaoʻao ʻelua o ka pūnaewele a hoʻokaʻawale i ke kukui e hiki mai ana i ʻike ʻia ka 100% o ke kaʻa ma ka mea hana nānā. ʻAʻole koi ka Passive TAP i kekahi lako mana. ʻO ka hopena, hoʻohui lākou i kahi papa o ka redundancy, pono ka mālama liʻiliʻi, a hōʻemi i nā kumukūʻai holoʻokoʻa. Inā hoʻolālā ʻoe e nānā i ke kaʻa keleawe Ethernet, pono ʻoe e hoʻohana i ka active TAP. Pono ka Active TAP i ka uila, akā ʻo ka Active TAP a Niagra e komo pū me ka ʻenehana bypass fail-safe e hoʻopau ana i ka pilikia o ka hoʻopilikia ʻana o ka lawelawe i ka hanana o ka pau ʻana o ka mana.
3. ʻAʻohe pohō pūʻolo
Nānā ka Network TAP i nā wēlau ʻelua o kahi loulou e hāʻawi i ka ʻike 100% o ke kaʻa pūnaewele ʻelua ala. ʻAʻole hoʻolei ʻo TAP i kekahi mau packets, me ka nānā ʻole i kā lākou bandwidth.
4. Kūpono no ka hoʻohana ʻana i ka pūnaewele waena a kiʻekiʻe
ʻAʻole hiki i ke awa SPAN ke hana i nā loulou pūnaewele i hoʻohana nui ʻia me ka ʻole o ka hāʻule ʻana o nā ʻeke. No laila, pono ka TAP pūnaewele i kēia mau hihia. Inā ʻoi aku ka nui o ke kaʻa e kahe ana mai ka SPAN ma mua o ka mea i loaʻa, lilo ke awa SPAN i oversubscribed a koi ʻia e hoʻolei i nā ʻeke. No ka hopu ʻana i 10Gb o ke kaʻa ʻelua ala, pono ke awa SPAN i 20Gb o ka mana, a hiki i ka 10Gb Network TAP ke hopu i nā 10Gb āpau o ka mana.
5. ʻAe ʻo TAP i nā kaʻa āpau e hala, me nā lepili VLAN
ʻAʻole ʻae nā awa span i nā lepili VLAN e hala, kahi e paʻakikī ai ka ʻike ʻana i nā pilikia VLAN a hana i nā pilikia wahaheʻe. Pale aku ʻo TAP i kēlā mau pilikia ma ka ʻae ʻana i nā kaʻa āpau ma o.
Ka manawa hoʻouna: Iulai-18-2022
