Ma TAP a Mylinking™ Network Bypass okhala ndi ukadaulo wa kugunda kwa mtima amapereka chitetezo cha netiweki nthawi yeniyeni popanda kuwononga kudalirika kapena kupezeka kwa netiweki. Ma TAP a Mylinking™ Network Bypass okhala ndi gawo la 10/40/100G Bypass amapereka magwiridwe antchito othamanga kwambiri ofunikira polumikiza zida zachitetezo ndikuteteza kuchuluka kwa magalimoto pa netiweki nthawi yeniyeni popanda kutayika kwa paketi.
Choyamba, kodi Bypass ndi chiyani?
Kawirikawiri, chipangizo chachitetezo cha netiweki chimagwiritsidwa ntchito pakati pa maukonde awiri kapena kuposerapo, monga Intranet ndi netiweki yakunja. Pulogalamu yogwiritsira ntchito pa chipangizo chachitetezo cha netiweki imasanthula mapaketi a netiweki kuti idziwe ngati pali zoopsa, kenako imatumiza mapaketiwo motsatira malamulo ena oyendetsera. Ngati chipangizo chachitetezo cha netiweki chili ndi vuto, Mwachitsanzo, pambuyo poti magetsi alephera kapena kugwa, magawo a netiweki olumikizidwa ndi chipangizocho adzataya kukhudzana. Pakadali pano, ngati netiweki iliyonse ikufunika kulumikizidwa, iyenera kuyendetsedwa patsogolo.
Bypas, monga momwe dzinalo likusonyezera, ndi ntchito yodutsa, zomwe zikutanthauza kuti maukonde awiri amatha kuyendetsedwa mwachindunji kudzera mu dongosolo la chipangizo chachitetezo cha netiweki kudzera mu mkhalidwe winawake woyambitsa (kulephera kwa magetsi kapena kuzimitsa). Pambuyo poti Bypass yayatsidwa, chipangizo chachitetezo cha netiweki chikalephera, netiweki yolumikizidwa ku chipangizo cha kudutsa imatha kulumikizana. Pankhaniyi, chipangizo cha kudutsa sichimakonza mapaketi pa netiweki.
Chachiwiri, gulu la Bypass limagwiritsidwa ntchito m'njira zotsatirazi:
Njira yodutsa imagawidwa m'njira zotsatirazi: njira yowongolera kapena njira yoyambitsa
1. Yoyambitsidwa ndi magetsi. Mu mawonekedwe awa, ntchito ya Bypass imayatsidwa chipangizocho chikapanda kuyatsidwa. Chipangizocho chikayatsidwa, Bypass imazimitsidwa nthawi yomweyo.
2. Yolamulidwa ndi GPIO. Mukalowa mu OS, mutha kugwiritsa ntchito GPIO kuyendetsa madoko enaake kuti muwongolere switch ya Bypass.
3, ndi Watchdog control. Iyi ndi njira yowonjezera ya Njira 2. Mutha kugwiritsa ntchito Watchdog kuti muwongolere kuyatsa ndi kuletsa pulogalamu ya GPIO Bypass, kuti muwongolere momwe Bypass ilili. Mwanjira imeneyi, Bypass ikhoza kutsegulidwa ndi Watchdog ngati nsanjayo yagwa.
Mu ntchito zenizeni, zinthu zitatuzi nthawi zambiri zimakhalapo nthawi imodzi, makamaka njira ziwiri 1 ndi 2. Njira yogwiritsira ntchito nthawi zambiri ndi iyi: Chipangizocho chikazima, Bypass imakhala yoyatsidwa. Chipangizocho chikayatsidwa, BIOS imatha kugwiritsa ntchito Bypass. BIOS ikatenga chipangizocho, Bypass imakhala yoyatsidwabe. Bypass imazimitsidwa kuti pulogalamuyo igwire ntchito. Pa nthawi yonse yoyambira, palibe kulumikizidwa kwa netiweki.
Pomaliza, Kusanthula kwa mfundo ya kukhazikitsa Bypass
1. Mulingo wa zida
Pa mulingo wa zida, relay imagwiritsidwa ntchito makamaka pochita Bypass. Relay izi zimalumikizidwa makamaka ku zingwe za chizindikiro cha doko lililonse la netiweki pa doko la netiweki la Bypass. Chithunzi chotsatirachi chikugwiritsa ntchito chingwe chimodzi cha chizindikiro kuti chiwonetse momwe relay imagwirira ntchito.
Mwachitsanzo, tengerani choyambitsa magetsi. Ngati magetsi alephera, switch yomwe ili mu relay idzafika pa 1, kutanthauza kuti, Rx yomwe ili mu doko la RJ45 la LAN1 imalumikizana mwachindunji ndi RJ45 Tx ya LAN2. Chipangizocho chikayatsidwa, switchyo idzalumikizidwa ku 2. Muyenera kuchita izi kudzera mu pulogalamu pa chipangizochi.
2. Mulingo wa mapulogalamu
Mu gulu la Bypass, GPIO ndi Watchdog zimakambidwa kuti ziwongolere ndikuyambitsa Bypass. Ndipotu, njira zonsezi zimayendetsa GPIO, kenako GPIO imalamulira relay pa hardware kuti ipange kulumpha kofanana. Makamaka, ngati GPIO yofananayo yayikidwa pamwamba, ndiye kuti relay idzafika pamalo 1. Mosiyana ndi zimenezi, ngati chikho cha GPIO chayikidwa pansi, relay idzafika pamalo 2.
Pa Watchdog Bypass, kwenikweni, potengera ulamuliro wa GPIO womwe uli pamwambapa, onjezani Watchdog control Bypass. Pambuyo poti watchdog yayamba kugwira ntchito, ikani zochita kuti zidutse mu BIOS. Dongosololi limalola ntchito ya Watchdog. Pambuyo poti watchdog yayamba kugwira ntchito, netiweki yofananira ya Bypass imayatsidwa, zomwe zimapangitsa chipangizocho kukhala mu Bypass state. Ndipotu, Bypass imayendetsedwanso ndi GPIO. Pankhaniyi, kulemba kwa GPIO kotsika kumachitika ndi Watchdog, ndipo palibe pulogalamu yowonjezera yomwe ikufunika kuti mulembe GPIO.
Ntchito ya hardware Bypass ndi ntchito yofunika kwambiri pazinthu zotetezera ma netiweki. Chipangizocho chikazima kapena kusokonezedwa, ma doko amkati ndi akunja amatha kulumikizidwa kuti apange chingwe cha netiweki. Mwanjira imeneyi, kuchuluka kwa deta ya ogwiritsa ntchito kumatha kudutsa mu chipangizocho popanda kukhudzidwa ndi momwe chipangizocho chilili panopa.
Nthawi yotumizira: Feb-06-2023
