Nekuwedzera kuri kuita masevhisi anotakurwa nePassive Optical Networks (PON), zvave zvakakosha kukurumidza kudzoreredza masevhisi mushure mekutadza kwemutsara. PON dziviriro yekuchinjisa tekinoroji, semhinduro yakakosha yekuona kuenderera kwebhizinesi, inovandudza zvakanyanya kuvimbika kwetiweki nekudzikisira kukanganiswa kwetiweki nguva kusvika pasi pe50ms kuburikidza nehungwaru dhindancy nzira.
Hunhu hwePONkudzivirira switching ndeyekuona kuenderera kwebhizinesi kuburikidza nembiri nzira yekuvaka ye "primary + backup".
Basa rayo rekushanda rakakamurwa kuva nhanho nhatu: kutanga, muchikamu chekutsvaga, chirongwa chinogona kunyatsoona fiber breakage kana kukundikana kwemidziyo mukati me5ms kuburikidza nekubatanidzwa kwemagetsi optical monitoring, kukanganisa kukanganisa, uye mameseji emwoyo; Munguva yekuchinja kwechikamu, iyo yekuchinja chiito inokonzeresa otomatiki zvichibva pane pre configured strategy, ine yakajairika switching kunonoka kunodzorwa mukati me30ms; Pakupedzisira, muchikamu chekudzoreredza, kutama kusinganzwisisike kwe218 bhizinesi paramita senge VLAN marongero uye bandwidth kugoverwa kunowanikwa kuburikidza nekugadzirisa injini yekubatanidza, kuve nechokwadi chekuti vashandisi vekupedzisira havazivi zvachose.
Deployment data chaiyo inoratidza kuti mushure mekutora tekinoroji iyi, iyo yegore yekukanganisa nguva yePON network inogona kudzikiswa kubva pa8.76 maawa kusvika 26 seconds, uye kuvimbika kunogona kuvandudzwa ne1200 times. Iyo yazvino nzira dzekudzivirira dzePON dzinosanganisira mhando ina, Type A kusvika Type D, ichigadzira yakazara tekinoroji sisitimu kubva kune yekutanga kusvika yepamusoro.
Type A (Trunk Fiber Redundancy) inotora dhizaini yembiri PON ports padivi reOLT ichigovera MAC machipi. Iyo inogadza yekutanga uye yekuchengetedza fiber optic link kuburikidza ne2: N splitter uye inochinja mukati me40ms. Mutengo wayo wekushandura Hardware unongowedzera ne20% yefiber zviwanikwa, zvichiita kuti ive yakakodzera kune mapfupi mapfupi ekutapurirana mamiriro akadai sekambasi network. Nekudaro, zvinofanirwa kucherechedzwa kuti chirongwa ichi chine zvisingakwanisi pabhodhi rimwe chete, uye kukundikana kwepoindi imwe chete yekuparadzanisa kunogona kukonzera kukanganisika kwehuviri.
Iyo yakanyanya kufambira mberi Type B (OLT port redundancy) inoendesa maviri madoko eakazvimiririra MAC machipi padivi reOLT, inotsigira inotonhora / inodziya yekuchengetedza modhi, uye inogona kukwidziridzwa kune mbiri mbiri yezvivakwa muOLTs. MuFTTHchiitiko chekuedza, mhinduro iyi yakawana synchronous migration ye128 ONUs mukati me50ms, ine chiyero chekurasikirwa kwepakeji ye 0. Yakave yakabudirira kushandiswa kune 4K vhidhiyo yekufambisa hurongwa mune yeprovince nhepfenyuro uye terevhizheni network.
Type C (yakazara fiber kuchengetedza) inoiswa kuburikidza nemusana / yakagoverwa fiber dual nzira deployment, yakabatanidzwa neONU dual optical module dhizaini, kupa magumo-kumagumo kuchengetedzwa kwemari yekutengesa masisitimu. Iyo yakawana 300ms kukanganisa kudzoreredza mukutsinhana kushushikana kuyedzwa, kusangana zvizere neiyo sub yechipiri yekukanganisa kushivirira mwero wezvivimbiso zvekutengesa masisitimu.
Iyo yepamusoro nhanho Type D (yakazara system inopisa backup) inotora dhizaini yegiredhi remauto, iine huviri hutongi uye huviri hwekuvakisa ndege kune ese OLT neONU, inotsigira matatu-layer redundancy yefiber/port/power supply. Mhosva yekuendesa ye5G base station backhaul network inoratidza kuti mhinduro inogona kuramba ichichengetedza 10ms level switching performance munzvimbo dzakanyanyisa dze -40 ℃, paine nguva yekukanganisa yegore inodzorwa mukati me32 seconds, uye yapfuura MIL-STD-810G yemauto standard certification.
Kuti uwane shanduko isina musono, maviri makuru ehunyanzvi matambudziko anofanirwa kukundwa:
Panyaya yekubatanidza kuwiriranisa, sisitimu inotora mutsauko wekuwedzera kuwiriranisa tekinoroji kuti ive nechokwadi chekuti 218 static paramita seVLAN neQoS marongero anowirirana. Panguva imwecheteyo, inowiriranisa data rine simba senge MAC kero tafura uye DHCP lease kuburikidza nekukurumidza replay michina, uye seamless inogara nhaka makiyi ekuchengetedza akavakirwa paAES-256 encryption chiteshi;
Muchikamu chekudzoreredza sevhisi, katatu garandi dhizaini yakagadzirwa - ichishandisa kukurumidza kuwanikwa kweprotocol kudzvanya iyo ONU rekunyoresa nguva kusvika mukati memasekonzi matatu, ine hungwaru yekudonhedza algorithm yakavakirwa paSDN kuti iwane chaiyo kurongeka kwetraffic, uye otomatiki calibration yemaparamita mazhinji senge simba rekuona / kunonoka.
Nguva yekutumira: Jun-19-2025