No ke kālailai ʻana i ka ʻoihana pūnaewele, pono e hoʻouna i ka ʻeke pūnaewele iā NTOP/NPROBE a i ʻole Out-of-band Network Security and Monitoring Tools. ʻElua mau hoʻonā i kēia pilikia:
Awa Mirroring(ʻike pū ʻia ʻo SPAN)
Paʻa pūnaewele(ʻike pū ʻia ʻo Replication Tap, Aggregation Tap, Active Tap, Copper Tap, Ethernet Tap, etc.)
Ma mua o ka wehewehe ʻana i nā ʻokoʻa ma waena o nā hoʻonā ʻelua (Port Mirror a me Network Tap), he mea nui e hoʻomaopopo i ka hana ʻana o ka Ethernet. Ma 100Mbit a ma luna, ʻōlelo pinepine nā pūʻali i ka duplex piha, ʻo ia hoʻi e hiki i hoʻokahi host ke hoʻouna (Tx) a loaʻa iā (Rx) i ka manawa like. ʻO ia hoʻi, ma kahi uwea 100 Mbit i hoʻohui ʻia i hoʻokahi pūʻali, ʻo ka huina o nā kaʻa pūnaewele e hiki ai i kahi mea hoʻokipa ke hoʻouna/loaʻa(Tx/Rx)) ʻo 2 × 100 Mbit = 200 Mbit.
ʻO ka hoʻohālikelike ʻana o Port he hoʻopiʻi packet hana, ʻo ia hoʻi ke kuleana kino o ka pūnaewele no ke kope ʻana i ka ʻeke i ke awa aniani.
'O ia ho'i, pono e hana ka mea hana i kēia hana ma ka ho'ohana 'ana i kekahi kumu waiwai (e like me ka CPU), a e ho'opili hou 'ia nā 'ao'ao ka'a 'elua i ka awa like. E like me ka mea i ʻōlelo ʻia ma mua, ma kahi loulou duplex piha, ʻo ia ke ʻano
A -> B a me B -> A
ʻAʻole e ʻoi aku ka nui o A ma mua o ka wikiwiki o ka pūnaewele ma mua o ka hiki ʻana o ka poho packet. No ka mea, ʻaʻohe wahi ma ke kino e kope ai i nā ʻeke. ʻIke ʻia he ʻenehana maikaʻi loa ka hoʻohālikelike ʻana i ke awa e like me ka mea hiki ke hana ʻia e nā hoʻololi he nui (akā ʻaʻole nā mea āpau), no ka mea, ʻo ka hapa nui o nā hoʻololi me ka drawback o ka poho packet, inā ʻoe e nānā i kahi loulou me ka 50% o ka ukana, a i ʻole ke aniani nā awa ma kahi awa ʻoi aku ka wikiwiki (e like me ke aniani 100 Mbit awa ma kahi awa 1 Gbit). ʻAʻole e haʻi ʻia e koi ʻia paha ka hoʻololi ʻana i nā kumuwaiwai hoʻololi, hiki ke hoʻouka i ka hāmeʻa a hoʻohaʻahaʻa i ka hana hoʻololi. E hoʻomaopopo he hiki iā ʻoe ke hoʻohui i 1 awa i hoʻokahi awa, a i ʻole 1 VLAN i hoʻokahi awa, akā ʻaʻole hiki iā ʻoe ke kope i nā awa he nui i 1. (Pēlā me ke aniani packet) nalo.
ʻO kahi TAP pūnaewelehe mea lako lako pasif piha, hiki ke hopu i ka holo ma ka uwna. Hoʻohana maʻamau ia e nānā i ke kaʻa ma waena o ʻelua mau wahi i ka pūnaewele. Inā he uwea kino ka pūnaewele ma waena o kēia mau kiko ʻelua, ʻo ka TAP pūnaewele paha ke ala maikaʻi loa e hopu ai i nā kaʻa.
ʻO ka TAP pūnaewele he ʻekolu mau awa: he awa A, he awa B, a he awa nānā. No ka hoʻokomo ʻana i kahi paʻi ma waena o nā kiko A a me B, ua hoʻololi ʻia ke kaula pūnaewele ma waena o ke kiko A a me ka helu B me nā kaula ʻelua, hele kekahi i ke awa o TAP A, ʻo kekahi e hele ana i ke awa o TAP B. Hāʻawi ka TAP i nā kaʻa āpau ma waena o nā wahi pūnaewele ʻelua, no laila ua pili pū kekahi i kekahi. Hoʻopili pū ka TAP i ke kaʻa i kona awa nānā, no laila e hiki ai i kahi hāmeʻa loiloi ke hoʻolohe.
Hoʻohana maʻamau ʻia nā TAP pūnaewele e ka nānā ʻana a me nā mea hōʻiliʻili e like me APS. Hiki ke hoʻohana ʻia nā TAPs i nā noi palekana no ka mea ʻaʻole ia e nānā ʻia, ʻaʻole ʻike ʻia ma ka pūnaewele, hiki ke hana me nā pūnaewele piha-duplex a ʻaʻole kaʻana like ʻole, a e hele maʻamau i nā kaʻa ʻoiai inā pau ka hana ʻana a nalowale ka mana. .
No ka loaʻa ʻole o nā awa ʻo Network Taps akā hoʻouna wale nō, ʻaʻohe ʻike o ka hoʻololi e noho ana ma hope o nā awa. ʻO ka hopena, ʻo ia ka hoʻolaha ʻana i nā ʻeke i nā awa a pau. No laila, inā hoʻopili ʻoe i kāu hāmeʻa kiaʻi i ka hoʻololi, e loaʻa iā ia nā ʻeke āpau. E hoʻomaopopo i ka hana ʻana o kēia mīkini inā ʻaʻole hoʻouna ka mea nānā i kekahi ʻeke i ka hoʻololi; inā ʻaʻole, e manaʻo ka hoʻololi ʻaʻole no ia mea nā ʻeke i paʻi ʻia. No ka hoʻokō ʻana i kēlā, hiki iā ʻoe ke hoʻohana i ke kelepona pūnaewele āu i hoʻopili ʻole ai i nā uea TX, a i ʻole e hoʻohana i kahi kikowaena pūnaewele IP-emi (a me DHCP-emi) ʻaʻole e hoʻouna i nā ʻeke. E hoʻomaopopo hope inā makemake ʻoe e hoʻohana i ka paʻi no ka nalowale ʻole ʻana i nā ʻeke, a laila mai hoʻohui i nā kuhikuhi a i ʻole hoʻohana i kahi hoʻololi i ʻoi aku ka lohi o nā kuhikuhi i paʻi ʻia (e laʻa me 100 Mbit) ma mua o ke awa hui (e laʻa me 1 Gbit).
No laila, pehea e kiʻi ai i ka Pūnaewele Pūnaewele? Nā Paʻi Pūnaewele vs Switch Ports Mirror
1- ʻO ka hoʻonohonoho maʻalahi: Pūnaewele Tap > Port Mirror
2- Ka Hoʻoikaika Hana Pūnaewele: Paʻi Pūnaewele < Port Mirror
3- Hopu, Hoʻopiʻi, Hoʻohui, Hoʻohou i ka hiki: Paʻi Pūnaewele> Port Mirror
4- Latency Hoʻomaka ʻana i ke Kaʻa: Paʻi Pūnaewele < Port Mirror
5- Hiki i ke kaʻa kaʻa kaʻa: Paʻi Pūnaewele > Mirror Port
Ka manawa hoʻouna: Mar-30-2022
