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
TUsually chikamu chetiweki chakatarisana nemushandisi kuti abatanidze kana kuwana network chinodaidzwa kuti dhizaini yekupinda, iyo yakaenzana nevashandi veuswa mumagadzirirwo emakambani, saka iyo yekupinda layer switch ine 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.Mune iyo aggregation layer, switch 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 kwetiweki yese, uye midziyo yayo inosanganisira ma routers, firewall, core layer switch, nezvimwe, izvo zvakaenzana nepamusoro manejimendi mune yekambani yekuvaka.
Iyo yepakati layer yagara 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 yemusana layer dhizaini basa. kazhinji iyo inotarisisa ye redundancy, kuvimbika uye yakakwirira-kumhanya kutapurirana.Naizvozvo, zvinodikanwa kuti iyo yepakati layer maturusi atore mbiri-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 peiyo yekupinda layer switch, iyo aggregation layer switch uye core layer switch ndiyo yakakosha yeruzivo rwepamusoro.Switch yataurwa pamusoro apa ndeyezvinopisa-zvinotengeswa zvekutaurirana zvigadzirwa muShenzhen HDV Phoelectron Technology LTD., senge: Ethernet switch, Fiber Channel switch, Ethernet Fiber Channel switch, nezvimwewo, ma switch ari pamusoro anogona kushandiswa munzvimbo dzakasiyana siyana, kupa mamwe sarudzo kune vashandisi vane zvinodiwa zvakasiyana, kugamuchirwa kuti uuye kuzonzwisisa, isu tichapa yakanakisa mhando sevhisi.
