Chekutanga pane zvese, isu tinofanirwa kujekesa pfungwa: yekupinda layer switch, aggregation layer switch, uye core layer switch haisi iyo kupatsanurwa uye hunhu hwekuchinja, asi yakakamurwa nemabasa avanoita. Ivo havana zvakatarwa zvinodiwa, uye zvakanyanya zvinoenderana nehukuru hwetiweki nharaunda, kugona kutumira kwechigadzirwa, uye nzvimbo mune network chimiro. Semuenzaniso, iyo imwechete Layer 2 switch inogona kushandiswa padanho rekupinda kana iyo yekuunganidza layer mune akasiyana network zvimiro. Kana ichishandiswa padanho rekupinda, switch inodaidzwa kuti access layer switch, uye kana ichishandiswa paaggregation layer, switch inonzi aggregation layer switch.
Hunhu uye misiyano yekuwana layer, aggregation layer uye core layer
Iyo yepakati layer inogona kupa yakakwana interzone kutapurirana, iyo aggregation layer inogona kupa policy-based yekubatanidza, uye iyo yekupinda layer inogona kupa mushandisi kuwana kune network kune akawanda-sevhisi maapplication uye mamwe maapplication network.
1. Access layer
Chaizvoizvo chikamu chetiweki chakatarisana nemushandisi kuti abatanidze kana kuwana network chinodaidzwa kuti dhizaini yekupinda, iyo yakaenzana nevashandi veuswa mukuvaka kwekambani, saka iyo yekupinda layer.chinjaine mutengo wakaderera uye yakakwirira-yekupedzisira port density maitiro.
Iyo yekupinda layer inopa vashandisi kugona kuwana iyo application system pane yemunharaunda network segment. Iyo yekupinda layer inopa yakakwana bandwidth yekuwana pakati pevashandisi vavakidzani. Iyo yekupinda layer ine basa rekuita manejimendi evashandisi mabasa (akadai seyechokwadi kero uye yechokwadi yemushandisi) uye mushandisi ruzivo rwekuunganidza (senge IP kero, MAC kero, uye matanda ekuwana).
2. Aggregation layer
Iyo Aggregation layer, inozivikanwawo seyekugovera layer, ndiyo "murevereri" pakati peiyo network yekuwana layer uye yepakati layer. Iyo yakaenzana neyepakati manejimendi yekambani uye inoshandiswa kubatanidza iyo core layer uye yekupinda layer. Muchinzvimbo chepakati, iyo convergence layer inoitwa isati yasvika nzvimbo yekushanda kuti ideredze mutoro wemidziyo yepakati.
Hazvina kuoma kunzwisisa kuti aggregation layer, inozivikanwawo seaggregation layer, ine mabasa akasiyana siyana sekuita marongero, chengetedzo, kupinda kweboka rebasa, nzira pakati penzvimbo dzenharaunda network (vlans), uye tsime kana kero yekusefa. Muchikamu chekuunganidza, achinjaiyo inotsigira Layer 3 switching tekinoroji uye VLAN inofanirwa kushandiswa kuwana network yekuzviparadzanisa nevamwe uye segmentation.
3. Core layer
Nheyo yepakati ndiyo musana wetiweki, iyo inovimbisa kushanda kwese network, uye midziyo yayo inosanganisirarouters, firewall, core layer switch, nezvimwewo, izvo zvakaenzana nepamusoro manejimendi mukuvaka kwekambani.
Iyo yepakati layer yakagara ichionekwa seyekupedzisira anogamuchira uye aggregator ye traffic yese, saka iyo core layer dhizaini uye network yemidziyo zvinodiwa zvakanyanya kuomarara, basa rayo ndere kuzadzisa iyo yakakwana kutapurirana pakati peiyo backbone network, iyo musana layer dhizaini dhizaini. kazhinji kutarisisa kwedundancy, kuvimbika uye yakakwirira-kumhanya kutapurirana. Naizvozvo, zvinodikanwa kuti iyo yepakati layer maturusi atore maviri-system redundancy inopisa backup, uye basa rekuenzanisa remutoro rinogona kushandiswawo kuvandudza mashandiro etiweki. Basa rekutonga retiweki rinofanira kuitwa pamusana wepamusoro zvishoma sezvinobvira.
Musiyano uripo pakati penzvimbo yekuwanachinja, iyo aggregation layerchinjauye core layerchinjandicho chinhu chikuru chezivo iri pamusoro. Thechinjaataurwa pamusoro ndeezvinopisa-kutengesa kutaurirana zvigadzirwa muShenzhen HDV Phoelectron Technology LTD., senge: Ethernetchinja, Fiber Channelchinja, Ethernet Fiber Channelchinja, zvichingodaro, shanduko dziri pamusoro dzinogona kushandiswa munzvimbo dzakasiyana siyana, kupa sarudzo dzakawanda kune vashandisi vane zvinodiwa zvakasiyana, kugamuchirwa kuti vauye kuzonzwisisa, isu tichapa yakanakisa mhando sevhisi.
