Thaum cov neeg siv khoom siv kho qhov muag siv, lawv yuav tau ntau dua lossis tsawg dua ntsib ntau yam kev txhaum, xws li seb tus qauv kho qhov muag tau xaiv tau raug, puas yog jumper siv raug thiab lwm yam teeb meem. Cov neeg siv khoom muaj peev xwm txiav txim siab thiab muaj kev daws teeb meem meej, tab sis rau qee qhov teeb meem, xws li kev xa xov tsis meej, ntau tus neeg muas zaub tsis paub yuav kuaj thiab daws lawv li cas.
Kev daws teeb meem thiab kev daws teeb meem ntawm kev sib kis
Qhov kev ua txhaum no feem ntau muaj xws li chaw nres nkoj tsis nce, chaw nres nkoj nce tab sis tsis tau txais lossis xa cov lus, nquag dhau los yog qis chaw nres nkoj thiab CRC yuam kev. Cov teeb meem tshwj xeeb daws teeb meem thiab cov kev daws teeb meem yog cov hauv qab no:
Chaw nres nkoj tsis nce
Noj 10g sfp + / xfp optical module ua piv txwv, thaum lub chaw nres nkoj kho qhov muag ntawm lub module tsis tuaj yeem txuas nrog lwm cov khoom siv nce, nws tuaj yeem kuaj tau los ntawm tsib yam hauv qab no:
Kauj ruam 1: xyuas seb tus nqi thiab duplex hom ntawm ob qho chaw nres nkoj sib piv - kev ua haujlwm ntawm" qhia qhov interface luv luv" txib kom saib, yog tias tsis yog, teeb tsa cov chaw nres nkoj nrawm thiab duplex hom los ntawm cov lus hais kom ua ceev thiab duplex.
Kauj Ruam 2: xyuas seb lub chaw nres nkoj ntaus ntawv phim cov kev nrawm thiab duplex ntawm hom kho qhov muag - ua" qhia pom interface luv" txib mus kuaj. Yog tias tsis yog, teeb tsa ntawm qhov ceev thiab duplex hom ntawm qhov chaw nres nkoj los ntawm cov lus hais kom ceev thiab duplex.
Kauj Ruam 3: xyuas seb lub pob ntawm ob hnub xaus yog dab tsi - ntsuam xyuas seb cov chaw nres nkoj ntawm ob hnub xaus tuaj yeem ua tau los ntawm loopback. Ntawm 10g SFP + chaw nres nkoj ntawm ib lub rooj tsavxwm, siv 10g SFP + cov xaim ncaj qha (haum rau kev sib nrug luv, lossis siv SFP + optical module thiab optical fiber jumper) rau kev sib tshuam. Ntawm 10g XFP chaw nres nkoj, siv XFP optical module thiab kho qhov muag kom pom seb qhov chaw nres nkoj puas tuaj yeem nce. Yog tias nws tuaj yeem ua tau, nws txhais tau tias qhov chaw nres nkoj rov qab txawv txav; yog tias nws tuaj yeem ua tsis tiav, nws txhais tau hais tias qhov chaw nres nkoj hauv zos yog qhov txawv txav. Koj tuaj yeem kuaj xyuas seb tus txhaum puas daws tau los ntawm kev hloov chaw nres nkoj hauv zos thiab chaw nres nkoj rov qab.
Kauj Ruam 4: xyuas seb puas muaj qhov khoos phis tawj qhov qub - feem ntau los xyuas seb cov tsis xws li DDM, lub zog kho qhov muag, qhov ntev thiab qhov deb yog qhov qub. Yog tias tsis yog, hloov kho qhov muag hluav taws xob txuam nrog cov khoos phis tawm kho qhov muag.
1.DDM cov ntaub ntawv - xyuas seb qhov ntsuas tsis zoo ib yam los ntawm" qhia kev cuam tshuam cuam tshuam pob tshab nthuav dav" txib. Yog tias muaj lub tswb, nws txhais tau tias qhov ntsuas hluav taws xob tsis yog qhov cuam tshuam lossis qhov ntsuas hluav taws xob tsis haum rau cov hom optical interface.
2.Optical zog - siv cov cuab yeej hluav taws xob kho qhov ntsuas los ntsuas seb lub teeb tsa lub zog ntawm qhov chaw nres nkoj nyob hauv thaj tsam li qub thiab ruaj khov.
3.Wavelength / nrug - xyuas seb lub wavelength, qhov deb, thiab lwm yam ntawm cov kho qhov muag ntawm ob qho kawg yog ua tau zoo sib xws los ntawm" qhia kev xa tawm interface" txib.
Kauj ruam thib tsib yog los kuaj xyuas seb puas muaj qhov kho qhov muag (optical fiber) ua qhov qub - piv txwv li, tib hom SFP + optical module ntais ntawv ntawm cov kho qhov muag fiber ntau, thiab ntau hom SFP + kho qhov muag kho qhov khoom siv. lub ntau hom kho qhov muag fiber. Yog tias nws tsis sib haum, cov kab hluav taws xob txuam nrog cov khoom siv tau hloov tau tam sim ntawd.
Cov xwm txheej ntawm chaw nres nkoj tau nce, tab sis cov lus tsis tau txais lossis xa
Thaum qhov xwm txheej ntawm chaw nres nkoj nce, tab sis cov lus tsis tuaj yeem tau txais lossis xa, teeb meem daws teeb meem yog nqa los ntawm peb yam nram qab no:
Kauj ruam 1: khij qhov chaw nres nkoj lus ntsuas. Txheeb xyuas seb qhov chaw nres nkoj ntawm ob qho kawg puas yog txhua lub sijhawm, thiab tshawb xyuas seb cov xov tooj txheeb cais ntawm ob qho kawg puas nce.
Kauj ruam 2: xyuas seb qhov chaw nres nkoj puas cuam tshuam rau kev tau txais cov lus. Ua ntej tshaj, xyuas seb lub network teeb tsa tau ua tiav, xyuas seb qhov teeb tsa puas muaj tseeb, rho tawm txhua yam khoom yog tsim nyog, thiab mam li ntsuam xyuas seb puas tsim teeb meem; qhov thib ob, kuaj seb MTU tus nqi ntawm qhov chaw nres nkoj yog 1500, yog tias nws yog ntau dua 1500, hloov kho qhov teeb tsa.
Kauj Ruam 3: xyuas seb qhov chaw nres nkoj thiab txuas txuas kev txiav ib txwm. Hloov qhov chaw nres nkoj sib txuas, txuas nws mus rau lwm qhov chaw nres nkoj kom pom tias muaj tib yam tshwm sim, yog tias tseem muaj qhov yuam kev, hloov kho qhov kho qhov muag.
Chaw nres nkoj nce lossis nqis tas li
Thaum lub chaw nres nkoj ntawm lub kho qhov muag hluav taws xob kho tau nce lossis poob ntau zaus, ua ntej tshaj tawm seb puas lub ntsej muag hluav taws xob tsis kho. Tshawb cov ntawv ceeb toom ntawm lub teeb tsa kho qhov muag kom kuaj xyuas cov teeb meem ntawm cov khoos phis tawm ntawm ob qho kawg thiab qhov txuas sib txuas fiber. Txog rau cov kho qhov kho "module" txhawb nqa cov kev kuaj mob digital, tshawb xyuas DDM cov ntaub ntawv kom paub meej tias lub zog kho qhov muag ntawm lub ntsej muag hluav taws xob nyob ntawm tus nqi tseem ceeb. Yog tias qhov hloov cov khoom siv hluav taws xob yog ntawm tus nqi tseem ceeb, hloov kho qhov kho qhov muag thiab qhov kho qhov muag Rau Cov khoom siv sib tshooj, yog tias tau txais lub zog kho qhov muag tseem ceeb ntawm tus nqi tseem ceeb, tshawb xyuas qhov kawg ntawm qhov kho qhov muag thiab txuas lub fiber ntau. Thaum qhov no tshwm sim rau hluav taws xob chaw nres nkoj kho qhov muag hluav taws xob, sim teem lub duplex.
Kev daws teeb meem thiab kev daws teeb meem rau qhov nyeem tsis tau ntawv
Zaub tsis txaus siab
DDM tsis txaus siab
Thaum lub kaw lus yov ua kom pom tias tus kho qhov muag tsis txhawb kev kuaj mob digital, koj tuaj yeem nug seb cov haujlwm kuaj mob digital puas tau txhawb nqa lossis tsis dhau los ntawm cov lus txib" qhia cov kev hloov pauv cuam tshuam nthuav dav" module txhawb cov kev kuaj mob digital. Yog tias tus qauv txhawb nqa cov kev kuaj mob digital, tab sis tsis tuaj yeem daws cov teeb meem, hu rau cov neeg ua haujlwm pabcuam kev txhawb nqa ntawm tus xa khoom ncaj qha rau kev pab.
DDM kev zam
Thaum lub interface tau nruab nrog optical module tsis ua hauj lwm ib txwm, kev daws teeb meem tuaj yeem nqa tawm raws li peb kauj ruam nram no:
Kauj Ruam 1: txheeb xyuas cov ntawv ceeb toom ntawm cov ntsuas hluav taws xob. Yog tias muaj cov teeb meem tau txais nyob hauv cov lus ceeb toom tswb, feem ntau yog tshwm sim los ntawm qhov chaw nres nkoj rov qab, cov khoom siv fiber ntau lossis hloov khoom siv; yog tias muaj cov teeb meem sib kis lossis qhov tsis zoo tam sim no thiab qhov ntsuas hluav taws xob, nws yog qhov yuav tsum tau kuaj xyuas qhov chaw nres nkoj hauv zos.
Kauj Ruam 2: xyuas seb puas tau txais thiab xa tawm ntawm lub zog kho qhov muag ntawm lub ntsej muag hluav taws xob yog qhov qub." qhia kev cuam tshuam pom tseeb" cov lus txib tuaj yeem siv los xyuas seb puas tau txais / kis ntawm lub zog ntawm cov kho qhov muag hluav taws xob yog qhov qub, thiab seb lwm qhov tsis muaj nyob rau ntawm qhov chaw pib; los yog cov lus nug ntawm lub sijhawm tiag tiag tuaj yeem siv los xyuas seb lub zog kho qhov muag, qhov kub, qhov ntsuas hluav taws xob, kev tsis ncaj ncees tam sim no thiab lwm yam tsis zoo.
Kauj Ruam 3: tshuaj xyuas seb puas muaj qhov kho qhov muag nws tus kheej ua tsis tau lossis cov khoom siv sib txuas lossis cov khoom sib txuas tsis ua tiav. Qhov chaw nres nkoj, kho qhov muag module, thiab lwm yam tuaj yeem hloov los nqa cov ntawv hla kev.
Cov khoom kho vajtse thiab cov kev daws teeb meem
Cov khoom kho vajtse daws teeb meem feem ntau pib ntawm qhov kho qhov muag ntawm nws tus kheej. Ua ntej tshaj, nws yog qhov yuav tsum ua kom ntseeg tau tias qhov zoo tshaj ntawm cov kho qhov muag tau txais yuav tau ntawv pov thawj. Yog tias tsis yog, qhov zoo tsis tuaj yeem lav, yog li nws pom zoo kom tsis txhob siv cov kho qhov muag. Thib ob, xyuas seb tus ntiv tes kub ntawm tus khoos phis tawj puas tau puas lawm, thiab hloov kho qhov "optical module" yog tias nws puas lawm Thaum kawg, xyuas seb lub interface puas paug lossis puas. Yog tias lub interface muaj kuab paug thiab huv, nws pom zoo kom hloov nws yog tias nws puas ntsoog.
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