Kwixesha leenethiwekhi ezikhawulezayo kunye neziseko zophuhliso ezikwilifu, ukujonga ithrafikhi yenethiwekhi ngexesha langempela, nokusebenza kakuhle kuye kwaba yintsika yokusebenza kwe-IT ethembekileyo. Njengoko iinethiwekhi zikhula ukuze zixhase iikhonkco ze-10 Gbps+, usetyenziso olufakwe kwiikhonteyina, kunye noyilo olusasazwe, iindlela zendabuko zokujonga ithrafikhi—ezifana nokubamba iipakethi ezipheleleyo—azisasebenzi ngenxa yezixhobo zazo eziphezulu. Kulapho i-sFlow (i-sampled Flow) ingena khona: iprotokholi ye-telemetry yenethiwekhi elula, esemgangathweni eyenzelwe ukubonelela ngokubonakala okubanzi kwithrafikhi yenethiwekhi ngaphandle kwezixhobo zenethiwekhi ezikhubazayo. Kule bhlog, siza kuphendula imibuzo ebalulekileyo malunga ne-sFlow, ukusuka kwinkcazo yayo esisiseko ukuya ekusebenzeni kwayo okusebenzayo kwi-Network Packet Brokers (NPBs).
1. Yintoni i-sFlow?
I-sFlow yinkqubo evulelekileyo, esemgangathweni wezentengiso yokujonga ithrafikhi yenethiwekhi eyenziwe yi-Inmon Corporation, echazwe kwi-RFC 3176. Ngokuchasene noko igama layo linokukubonisa, i-sFlow ayinalo icebo "lokulandelela ukuhamba" elivela kwisampulu—yiteknoloji ye-telemetry esekelwe kwisampulu eqokelela kwaye ithumele izibalo zethrafikhi yenethiwekhi kumqokeleli ophakathi ukuze ihlalutywe. Ngokungafaniyo nemigaqo efana ne-NetFlow, i-sFlow ayigcini iirekhodi zokuhamba kwizixhobo zenethiwekhi; endaweni yoko, ibamba iisampulu ezincinci, ezimele ithrafikhi kunye neekhawuntara zezixhobo, ize ithumele le datha ngokukhawuleza kumqokeleli ukuze icutshungulwe.
Eyona nto iphambili kuyo, i-sFlow yenzelwe ukukhulisa nokunciphisa ukusetyenziswa kwezixhobo. Ifakwe kwizixhobo zenethiwekhi (iiswitshi, ii-routers, ii-firewalls) njenge-arhente ye-sFlow, evumela ukujonga ngexesha langempela amakhonkco anesantya esiphezulu (ukuya kuthi ga kwi-10 Gbps nangaphezulu) ngaphandle kokonakalisa ukusebenza kwesixhobo okanye ukudluliselwa kwenethiwekhi. Ukubekwa kwayo ngokwemigangatho kuqinisekisa ukuhambelana kubathengisi, okwenza kube lukhetho oluqhelekileyo kwiindawo ezahlukeneyo zenethiwekhi.
2. Isebenza njani i-sFlow?
I-sFlow isebenza ngoyilo olulula noluneziqendu ezibini: i-sFlow Agent (efakwe kwizixhobo zenethiwekhi) kunye ne-sFlow Collector (iseva ephakathi yokuhlanganisa idatha kunye nohlalutyo). Umsebenzi ujikeleza kwiindlela ezimbini ezibalulekileyo zokuthatha iisampulu—ukuthatha iisampulu kwiphakheji kunye nokuthatha iisampulu—kunye nokuthumela idatha ngaphandle, njengoko kuchaziwe ngezantsi:
2.1 Izinto Eziphambili
- I-arhente ye-sFlow: Imodyuli yesoftware ekhaphukhaphu eyakhelwe kwizixhobo zenethiwekhi (umz., ii-Cisco switches, ii-routers zeHuawei). Inoxanduva lokuqokelela iisampulu zethrafikhi kunye nedatha ye-counter, ifake le datha kwi-sFlow Datagrams, kwaye izithumele kumqokeleli nge-UDP (izibuko elimiselweyo 6343).
- Umqokeleli we-sFlow: Inkqubo ephakathi (ebonakalayo okanye ebonakalayo) efumana, ihlalutye, igcine, kwaye ihlalutye ii-sFlow Datagrams. Ngokungafaniyo nabaqokeleli be-NetFlow, abaqokeleli be-sFlow kufuneka baphathe ii-headers zepakethi ezingavuthwanga (ngesiqhelo ii-bytes ezingama-60–140 kwisampulu nganye) kwaye bazihlalutye ukuze bafumane ulwazi olunentsingiselo—oku kuguquguquka kuvumela inkxaso kwiipakethi ezingezizo ezisemgangathweni ezifana ne-MPLS, i-VXLAN, kunye ne-GRE.
2.2 Iindlela eziphambili zokuthatha iisampulu
I-sFlow isebenzisa iindlela ezimbini ezincedisayo zokuthatha iisampulu ukulinganisela ukubonakala kunye nokusebenza kakuhle kwezixhobo:
1- Ukusampula iPakethi: I-Agent ithatha iisampulu ngokungacwangciswanga zeepakethi ezingenayo/eziphumayo kwiindawo ezijongiweyo. Umzekelo, izinga lokuvavanya isampuli le-1:2048 lithetha ukuba i-Agent ithatha ipakethi enye kuzo zonke ezingama-2048 (izinga lokuvavanya isampuli elimiselweyo kwizixhobo ezininzi). Endaweni yokubamba iipakethi zonke, iqokelela kuphela ii-byte ezimbalwa zokuqala zentloko yepakethi (ngesiqhelo ii-byte ezingama-60–140), eziqulethe ulwazi olubalulekileyo (umthombo/indawo ye-IP, izibuko, iprotocol) ngelixa inciphisa iindleko. Izinga lokuvavanya isampuli linokulungiselelwa kwaye kufuneka lilungiswe ngokusekelwe kumthamo wethrafikhi yenethiwekhi—amanani aphezulu (iisampuli ezingaphezulu) aphucula ukuchaneka kodwa anyusa ukusetyenziswa kwezixhobo, ngelixa amazinga aphantsi anciphisa iindleko kodwa asenokuphoswa ziipateni zethrafikhi ezingaqhelekanga.
2- Ukusampula okuKhawulezayo: Ukongeza kwiisampuli zepakethi, i-Agent iqokelela idatha ekhawulezayo rhoqo kwii-interfaces zenethiwekhi (umz., ii-bytes ezidluliselweyo/ezifunyenweyo, ukuhla kweepakethi, amazinga eempazamo) ngamaxesha athile (okwendalo: imizuzwana eli-10). Le datha inika umxholo malunga nempilo yesixhobo kunye nekhonkco, incedisa iisampuli zepakethi ukunika umfanekiso opheleleyo wokusebenza kwenethiwekhi.
2.3 Ukuthunyelwa kunye noHlalutyo lweDatha ngaphandle
Nje ukuba iqokelelwe, i-Agent ihlanganisa iisampulu zepakethi kwaye ibale idatha kwi-sFlow Datagrams (iipakethi ze-UDP) ize izithumele kumqokeleli. Umqokeleli uhlalutya ezi datagrams, ahlanganise idatha, aze enze imifanekiso, iingxelo, okanye izilumkiso. Umzekelo, inokuchonga abantu abathetha kakhulu, ifumanise iipatheni zetrafikhi ezingaqhelekanga (umz., uhlaselo lwe-DDoS), okanye ilandelele ukusetyenziswa kwe-bandwidth ngokuhamba kwexesha. Izinga lesampulu lifakiwe kwi-datagram nganye, okuvumela umqokeleli ukuba ahlalutye idatha ukuze aqikelele umthamo wetrafikhi iyonke (umz., isampulu e-1 kwi-2048 ithetha ukuba itrafikhi ebonweyo idlula i-2048x).
3. Lithini ixabiso eliphambili le-sFlow?
Ixabiso le-sFlow livela kudibaniso lwayo olulodwa lokukwazi ukukhulisa, ukusebenza okuphezulu, kunye nokulinganisa—ukujongana neengxaki eziphambili zokubeka esweni inethiwekhi yanamhlanje. Izibonelelo zayo eziphambili zezi:
3.1 Ulawulo oluphantsi lwezixhobo
Ngokungafaniyo nokubanjwa kwepakethi epheleleyo (efuna ukugcina nokucubungula ipakethi nganye) okanye iiprotokholi ezisemgangathweni ezifana neNetFlow (egcina iitafile zokuhamba kwizixhobo), i-sFlow isebenzisa isampuli kwaye ithintela ukugcinwa kwedatha yendawo. Oku kunciphisa ukusetyenziswa kwe-CPU, imemori, kunye ne-bandwidth kwizixhobo zenethiwekhi, okwenza ukuba ilungele iikhonkco ezikhawulezayo kunye neendawo ezixinzelelweyo zezixhobo (umz., iinethiwekhi zamashishini amancinci ukuya kwaphakathi). Ayifuni hardware eyongezelelweyo okanye ukuphuculwa kwememori kwizixhobo ezininzi, nto leyo enciphisa iindleko zokusasazwa.
3.2 Ukwanda Okuphezulu
I-sFlow yenzelwe ukukhulisa iinethiwekhi zanamhlanje. Umqokeleli omnye unokujonga amashumi amawaka ee-interfaces kumakhulu ezixhobo, exhasa amakhonkco ukuya kuthi ga kwi-100 Gbps nangaphezulu. Indlela yayo yokuvavanya iqinisekisa ukuba nangona umthamo wethrafikhi unyuka, ukusetyenziswa kwezixhobo ze-Agent kuhlala kulawuleka—kubalulekile kumaziko edatha nakwiinethiwekhi zomgangatho wenkampani ezinemithwalo emikhulu yethrafikhi.
3.3 Ukubonakala kweNethiwekhi ngokubanzi
Ngokudibanisa iisampulu zepakethi (zomxholo wetrafikhi) kunye nesampulu echaseneyo (yempilo yesixhobo/ikhonkco), i-sFlow ibonelela ngokubonakala ukusuka ekuqaleni ukuya ekupheleni kwitrafikhi yenethiwekhi. Ixhasa itrafikhi yeLayer 2 ukuya kwiLayer 7, ivumela ukujonga usetyenziso (umz., iwebhu, i-P2P, i-DNS), iiprotokholi (umz., i-TCP, i-UDP, i-MPLS), kunye nokuziphatha komsebenzisi. Oku kubonakala kunceda amaqela e-IT ukuba abone iingxaki, asombulule iingxaki, kwaye aphucule ukusebenza kwenethiwekhi ngokukhawuleza.
3.4 Ukubekwa eMgangathweni koMthengisi Ongathathi cala
Njengomgangatho ovulekileyo (RFC 3176), i-sFlow ixhaswa ngabo bonke abathengisi abakhulu benethiwekhi (iCisco, iHuawei, iJuniper, iArista) kwaye idityaniswa nezixhobo zokubeka esweni ezidumileyo (umz., iPRTG, iSolarWinds, i-sFlow-RT). Oku kuphelisa ukuvalelwa kwabathengisi kwaye kuvumela imibutho ukuba isebenzise i-sFlow kwiindawo ezahlukeneyo zenethiwekhi (umz., izixhobo ezixutyiweyo zeCisco kunye neHuawei).
4. Iimeko eziqhelekileyo zokusetyenziswa kwe-sFlow
Ukuguquguquka kwe-sFlow kuyenza ifaneleke kwiindawo ezahlukeneyo zenethiwekhi, ukusuka kumashishini amancinci ukuya kumaziko edatha amakhulu. Ezona meko zixhaphakileyo zokusetyenziswa kwayo ziquka:
4.1 Ukubeka iliso kwiNethiwekhi yeZiko leDatha
Amaziko edatha axhomekeke kwiikhonkco ezikhawulezayo (10 Gbps+) kwaye axhasa amawaka oomatshini ababonakalayo (iiVM) kunye nezicelo ezikwikhonteyina. I-sFlow ibonelela ngokubonakala kwangexesha langempela kwithrafikhi yenethiwekhi ye-leaf-spine, inceda amaqela e-IT ukuba abone "ukugeleza kweendlovu" (ukugeleza okukhulu, okuhlala ixesha elide okubangela ukuxinana), ukuphucula ukwabiwa kwe-bandwidth, kunye nokusombulula iingxaki zonxibelelwano phakathi kwe-VM/container. Ihlala isetyenziswa ne-SDN (Software-Defined Networking) ukuvumela ubunjineli bethrafikhi obuguqukayo.
4.2 Ulawulo lweNethiwekhi yeKhampasi yeShishini
Iikhampasi zeshishini zifuna ukubekwa esweni okungabizi kakhulu nokunokulinganiswa ukuze kulandelelwe ithrafikhi yabasebenzi, kuqinisekiswe imigaqo-nkqubo ye-bandwidth, kwaye kubonwe izinto ezingaqhelekanga (umz., izixhobo ezingagunyaziswanga, ukwabelana ngeefayile ze-P2P). I-sFlow's low overhead yenza ukuba ilungele iiswitshi zekhampasi kunye nee-routers, ivumela amaqela e-IT ukuba achonge ii-bandwidth hogs, aphucule ukusebenza kwesicelo (umz., iMicrosoft 365, iZoom), kwaye aqinisekise uqhagamshelo oluthembekileyo kubasebenzisi bokugqibela.
4.3 Imisebenzi yeNethiwekhi yoMthwali-weSigaba
Abaqhubi be-telecom basebenzisa i-sFlow ukujonga umqolo kunye nokufikelela kwiinethiwekhi, ukulandelela ivolumu yethrafikhi, i-latency, kunye namazinga eempazamo kumawaka ee-interfaces. Inceda abaqhubi ukuba baphucule ubudlelwane bokujonga, babone uhlaselo lwe-DDoS kwangethuba, kwaye bahlawulise abathengi ngokusekelwe ekusetyenzisweni kwe-bandwidth (ukusetyenziswa kwe-accounting).
4.4 Ukubeka iliso kuKhuseleko lweNethiwekhi
I-sFlow sisixhobo esibalulekileyo kumaqela okhuseleko, njengoko inokubona iipatheni zethrafikhi ezingaqhelekanga ezinxulumene nohlaselo lwe-DDoS, ukuskena iiport, okanye i-malware. Ngokuhlalutya iisampulu zeepakethi, abaqokeleli banokubona izibini ze-IP ezingaqhelekanga zomthombo/indawo oya kuyo, ukusetyenziswa kweprotocol engalindelekanga, okanye ukunyuka ngequbuliso kwithrafikhi—okubangela izilumkiso zophando olongezelelekileyo. Inkxaso yayo kwiintloko zeepakethi ezingavuthwanga yenza ukuba isebenze ngakumbi ekufumaneni iivektha zohlaselo ezingezizo ezisemgangathweni (umz., ithrafikhi ye-DDoS efihliweyo).
4.5 Ucwangciso lobuchule kunye noHlalutyo lweNdlela
Ngokuqokelela idatha yendlela yesiqhelo, i-sFlow ivumela amaqela e-IT ukuba achonge iindlela (umz., ukunyuka kwe-bandwidth yexesha elithile, ukusetyenziswa kwezicelo okwandayo) kwaye acwangcise ukuphuculwa kwenethiwekhi ngokukhawuleza. Umzekelo, ukuba idatha ye-sFlow ibonisa ukuba ukusetyenziswa kwe-bandwidth kuyanda nge-20% ngonyaka, amaqela anokubhajetha iikhonkco ezongezelelweyo okanye ukuphuculwa kwezixhobo ngaphambi kokuba kubekho ukuxinana.
5. Imida ye-sFlow
Nangona i-sFlow sisixhobo esinamandla sokubeka esweni, inemida emele iqwalaselwe yimibutho xa iyisebenzisa:
5.1 Ukutshintshaniswa kokuchaneka kwesampulu
Eyona nto iphambili kwi-sFlow kukuxhomekeka kwayo kwisampuli. Amanani aphantsi esampuli (umz., 1:10000) asenokungaphumeleli kwiipateni zendlela ezingaqhelekanga kodwa ezibalulekileyo (umz., ukuhamba kwexesha elifutshane kohlaselo), ngelixa amazinga aphezulu esampuli enyusa iindleko zezixhobo. Ukongeza, isampuli ingenisa umahluko wezibalo—uqikelelo lomthamo wesithuthi uwonke lusenokungabi luchanekile nge-100%, nto leyo enokuba yingxaki kwiimeko zokusetyenziswa ezifuna ukubalwa kwezithuthi ngokuchanekileyo (umz., ukuhlawulisa iinkonzo ezibalulekileyo).
5.2 Akukho Mxholo Opheleleyo Wokuhamba Kwezinto
Ngokungafaniyo neNetFlow (ebamba iirekhodi zokuhamba ezipheleleyo, kuquka amaxesha okuqala/okuphela kunye neebhayithi/iipakethi ezipheleleyo ngokuhamba), i-sFlow ibamba kuphela iisampulu zeepakethi nganye. Oku kwenza kube nzima ukulandelela umjikelo wobomi bonke bokuhamba (umz., ukuchonga ukuba ukuhamba kuqale nini, ukuba kuthathe ixesha elingakanani, okanye ukusetyenziswa kwayo iyonke kwe-bandwidth).
5.3 Inkxaso Elinganiselweyo kwiiNdawo ezithile zoNxibelelwano/iiMowudi
Izixhobo ezininzi zenethiwekhi zixhasa i-sFlow kuphela kwii-interfaces ezibonakalayo—ii-interfaces ezibonakalayo (umz., ii-VLAN subinterfaces, ii-port channels) okanye ii-stack modes zisenokungaxhaswa. Umzekelo, ii-Cisco switches azixhasi i-sFlow xa iqaliswa kwi-stack mode, nto leyo ethintela ukusetyenziswa kwayo kwii-stack switch deployments.
5.4 Ukuxhomekeka kwiNkqubo yeArhente
Ukusebenza kwe-sFlow kuxhomekeke kumgangatho wokusetyenziswa kwe-Agent kwizixhobo zenethiwekhi. Ezinye izixhobo ezikumgangatho ophantsi okanye izixhobo ezindala zinokuba nee-Agent eziphuculweyo kakuhle ezisebenzisa izixhobo ezininzi okanye zibonelela ngeesampuli ezingachanekanga. Umzekelo, ezinye ii-routers zine-CPUs zolawulo olucothayo ezithintela ukuseta amazinga afanelekileyo okuthatha iisampulu, nto leyo enciphisa ukuchaneka kokufunyanwa kwezixhobo ezifana ne-DDoS.
5.5 I-Limited Encrypted Traffic Insight
I-sFlow ibamba kuphela ii-packet headers—i-trafikhi efihliweyo (umz., i-TLS 1.3) ifihla idatha yomthwalo wepayload, okwenza kube nzima ukuchonga usetyenziso okanye umxholo wokuhamba. Nangona i-sFlow isenokulandelela iimetrikhi ezisisiseko (umz., umthombo/indawo eya kuyo, ubungakanani bepakethi), ayinakubonelela ngokubonakalayo okunzulu kwindlela yokuziphatha kwe-trafikhi efihliweyo (umz., imithwalo yepayloads enobungozi efihliweyo kwi-HTTPS traffic).
5.6 Ubunzima boMqokeleli
Ngokungafaniyo neNetFlow (ebonelela ngeerekhodi zokuhamba ezihlolisisiweyo kwangaphambili), i-sFlow ifuna abaqokeleli ukuba bahlalutye ii-packet headers ezingavulwanga. Oku kwandisa ubunzima bokuthunyelwa kunye nolawulo lwabaqokeleli, njengoko amaqela kufuneka aqinisekise ukuba umqokeleli unokusingatha iintlobo ezahlukeneyo zeepakethi kunye neenkqubo (umz., i-MPLS, i-VXLAN).
6. Isebenza njani i-sFlow kwiUmthengisi weePakethi zeNethiwekhi (NPB)?
I-Network Packet Broker (NPB) sisixhobo esikhethekileyo esihlanganisa, sihluze, kwaye sisasaze ithrafikhi yenethiwekhi kwizixhobo zokubeka esweni (umz., abaqokeleli be-sFlow, i-IDS/IPS, iinkqubo zokubamba iipakethi ezipheleleyo). Ii-NPB zisebenza njenge "indawo zokubeka esweni," ukuqinisekisa ukuba izixhobo zokubeka esweni zifumana kuphela ithrafikhi efanelekileyo eziyidingayo-ukuphucula ukusebenza kakuhle kunye nokunciphisa ukuxinana kwezixhobo. Xa zidityaniswe ne-sFlow, ii-NPB ziphucula amandla e-sFlow ngokujongana nemida yayo kunye nokwandisa ukubonakala kwayo.
6.1 Indima ye-NPB kwi-sFlow Deployments
Kwindlela eqhelekileyo yokusetyenziswa kwe-sFlow, isixhobo ngasinye senethiwekhi (iswitshi, i-router) sisebenzisa i-sFlow Agent ethumela iisampulu ngqo kumqokeleli. Oku kunokukhokelela ekugcwaleni kakhulu komqokeleli kwiinethiwekhi ezinkulu (umz., amawaka ezixhobo ezithumela idatha ye-UDP ngaxeshanye) kwaye kwenza kube nzima ukucoca ithrafikhi engafanelekiyo. Ii-NPB zisombulula oku ngokusebenza njenge-sFlow Agent esembindini okanye umqokeleli wethrafikhi, ngolu hlobo lulandelayo:
6.2 Iindlela zokudibanisa ezibalulekileyo
1- Isampuli ye-sFlow esembindini: I-NPB iqokelela ithrafikhi evela kwizixhobo ezininzi zenethiwekhi (ngee-SPAN/RSPAN ports okanye ii-TAPs), ize isebenzise i-sFlow Agent ukuze ifumane isampuli kule thrafikhi idibeneyo. Endaweni yokuba isixhobo ngasinye sithumele iisampulu kumqokeleli, i-NPB ithumela umlambo omnye weesampulu—ukunciphisa umthwalo womqokeleli kunye nokwenza lula ulawulo. Le ndlela ifanelekile kwiinethiwekhi ezinkulu, njengoko ibeka isampulu kwindawo enye kwaye iqinisekisa amazinga okuthatha iisampulu ahambelanayo kuyo yonke inethiwekhi.
2- Ukuhluzwa kweTrafikhi kunye noLungiso: Ii-NPB zinokuhluza itrafikhi ngaphambi kokuba zisampulwe, ziqinisekisa ukuba kuphela itrafikhi efanelekileyo (umz., itrafikhi evela kwii-subnet ezibalulekileyo, usetyenziso oluthile) ithathwa isampuli yi-sFlow Agent. Oku kunciphisa inani leesampuli ezithunyelwa kumqokeleli, kuphucula ukusebenza kakuhle kunye nokunciphisa iimfuno zokugcina. Umzekelo, i-NPB inokucoca itrafikhi yolawulo lwangaphakathi (umz., i-SSH, i-SNMP) engadingi kubekwa esweni, igxile kwitrafikhi yomsebenzisi kunye nesicelo.
3- Ukuhlanganiswa kweSampuli kunye noNxibelelwano: Ii-NPB zinokuhlanganisa iisampulu ze-sFlow ezivela kwizixhobo ezininzi, emva koko zidibanise le datha (umz., ukudibanisa ithrafikhi ukusuka kwi-IP yomthombo ukuya kwiindawo ezininzi) ngaphambi kokuba ziyithumele kumqokeleli. Oku kunika umqokeleli umbono opheleleyo wokuhamba kwenethiwekhi, ukujongana nomda we-sFlow wokungalandeli iimeko zokuhamba ngokupheleleyo. Ezinye ii-NPB eziphambili zikwaxhasa ukulungiswa kwamazinga okuthatha iisampulu ngokuguquguqukayo ngokusekelwe kumthamo wethrafikhi (umz., ukwandisa amazinga okuthatha iisampulu ngexesha lokunyuka kwethrafikhi ukuphucula ukuchaneka).
4- Ubuninzi kunye nokuFumaneka Okuphezulu: Ii-NPB zinokubonelela ngeendlela ezingafunekiyo zeesampulu ze-sFlow, ziqinisekisa ukuba akukho datha ilahlekayo ukuba umqokeleli uyasilela. Zinokulayisha iisampulu ngokulinganisela kwiingqokelela ezininzi, zithintele nawuphi na umqokeleli omnye ekubeni yingxaki.
6.3 Iingenelo eziSebenzayo ze-NPB + sFlow Integration
Ukudibanisa i-sFlow ne-NPB kuzisa iingenelo ezininzi ezibalulekileyo:
- Ukwanda: Ii-NPB zijongana nokuhlanganiswa kwezithuthi kunye neesampuli, zivumela umqokeleli we-sFlow ukuba akhule ukuze axhase amawaka ezixhobo ngaphandle kokugqithisa kakhulu.
- Ukuchaneka: Ukulungiswa kwesantya sesampulu kunye nokuhluzwa kwetrafikhi kuphucula ukuchaneka kwedatha ye-sFlow, kunciphisa umngcipheko wokulahleka kweepateni ezibalulekileyo zetrafikhi.
- Ukusebenza kakuhle: Ukuthatha iisampulu kunye nokucoca okuphakathi kunciphisa inani leesampulu ezithunyelwa kumqokeleli, kunciphisa i-bandwidth kunye nokusetyenziswa kwendawo yokugcina.
- Ulawulo Olulula: Ii-NPB zenza uqwalaselo kunye nokubeka iliso kwi-sFlow, zisusa isidingo sokumisela ii-Arhente kuzo zonke izixhobo zenethiwekhi.
Isiphelo
I-sFlow yinkqubo yokubeka iliso kwinethiwekhi elula, ekwaziyo ukulinganiswa, nesemgangathweni ejongana nemingeni eyahlukileyo yenethiwekhi zanamhlanje ezikhawulezayo. Ngokusebenzisa isampuli ukuqokelela idatha yetrafikhi kunye nedatha echaseneyo, inika ukubonakala okubanzi ngaphandle kokonakalisa ukusebenza kwesixhobo—okuyenza ifaneleke kumaziko edatha, amashishini, kunye nabathwali. Nangona inemida (umz., ukuchaneka kwesampuli, umxholo wokuhamba okulinganiselweyo), ezi zinto zinokuncitshiswa ngokuhlanganisa i-sFlow ne-Network Packet Broker, ebeka isampuli kwindawo enye, ihluze itrafikhi, kwaye iphucule ukulinganiswa.
Nokuba ujonga inethiwekhi encinci yekhampasi okanye umqolo omkhulu wenkampani, i-sFlow inikezela ngesisombululo esingabizi kakhulu nesingathathi cala kubathengisi ukuze ufumane ulwazi olusebenzayo malunga nokusebenza kwenethiwekhi. Xa idibene ne-NPB, iba namandla ngakumbi—ivumela imibutho ukuba ikhulise iziseko zayo zokujonga kwaye igcine ukubonakala njengoko iinethiwekhi zayo zikhula.
Ixesha lokuthumela: Feb-05-2026
