100% Original 1.25g Sfp Dual Fiber Optical Transceiver - 24+2 Management Gigabit Fiber Ethernet Switch JHA-S2024MG-26BC - JHA
100% Original 1.25g Sfp Dual Fiber Optical Transceiver - 24+2 Management Gigabit Fiber Ethernet Switch JHA-S2024MG-26BC – JHA Imininingwane:
24+2 Ukuphatha Gigabit Fiber Ethernet Shintsha
I-JHA-S2024MG-26BC
24+2 Gigabit ManagedI-Fiber Switch
♦Umkhiqizo ovfuthirview:
v JHA-S2024MG-26BC Uchungechunge lwe-Gigabit EphethweI-Fiber SwitchI-es ingeyesibili, isendlalelo sesine sokushintshwa kwe-gigabit ephethwe. I-Hardware isekela ukushintsha kwe-wire-speed kwesendlalelo sesibili. Abasebenzisi bangasetha zonke izinhlobo zemisebenzi yeswishi ngembobo ye-Ethernet ku-WEB. Isistimu yokuzivikela eyakhelwe ngaphakathi ye-ARP ne-DOS ingavikela ngempumelelo i-ARP, i-DOS kanye nokuhlaselwa kwegciwane okuhlukahlukene. Ngaphezu kwalokho i-JHA-S2024MG-26BC Series Switches nayo ifakwe izici eziningi ezinamandla: i-QoS ebanzi, isihlahla esinwebekayo, ukucindezelwa kwesiphepho, Ukulawulwa Komkhawulokudonsa, I-IGMP Snooping, Ukulawulwa kokufinyelela kwe-ACL, ukuhlola kwe-DHCP njll. Ifaneleka kakhulu amabhizinisi amancane naphakathi nendawo, inethiwekhi yekhampasi, kanye nezicelo zokuhlanganisa inethiwekhi yendawo yedolobha elikhulu.
- Ukuzivikela kwe-ARP: umsebenzi wekheli le-MAC nokubophezela kwechweba kanye nokuhlunga kwekheli le-MAC kungavikela ngempumelelo ukuhlasela kwe-ARP; I-DHCP snooping inganikeza ukuvikelwa kwe-ARP kubasebenzisi ukuze bathole i-MAC ngamandla.
2. Qos: ukusekelwa kwesu le-QOS eminingi. Ngokusekelwe kusilungiselelo sokubalulekile esingu-802.1p, imbobo ngayinye inikeza imigqa ebalulekile eyisishiyagalombili. I-IP-DSCP ingahlukaniswa ngamaleveli esevisi ahlukene ngokuya ngesihloko se-IP , ukuze kuzuzwe i-QOS ebanzi. I-AUTO VOIP ingasetha itheku endaweni ebaluleke kakhulu yesiginali yezwi, ithuthukise ikhwalithi yezwi yocingo lwenethiwekhi ye-IP kakhulu.
3. Isihlahla Esinwebekayo: Sekela izinga le-IEEE 802.1d kanye ne-IEEE 802.1w (Iphrothokholi Yesihlahla Esibanzi Esisheshayo) kanye ne-IEEE 802.1s (Iphrothokholi Yezihlahla Ezibanzi Ezibanzi).
4. I-AUTO DOS: vikela ukuhlasela kwe-DOS okulandelayo ngezindlela eziyisikhombisa ezahlukene.
(1) Ukuhlaselwa komhlaba: umhlaseli uthumela amaphakethe e-TCP SYN afojiwe okugeleza kolwazi nekheli le-IP eliwumthombo ofanayo, ikheli lendawo le-IP, uhlelo lwesisulu luzama ukuthumela ulwazi lokuphendula lona ngokwalo, lubangele ukuphazamiseka kohlelo futhi luzokhubazeka noma luqale kabusha. .
(2) Ukuhlasela kwe-Blat: umhlaseli uthumela amaphakethe omgunyathi anenombolo yembobo yomthombo ofanayo kanye nenombolo yembobo yendawo okuyiwa kuyo, isistimu yesisulu izama ukuzithumelela ulwazi lwempendulo, kubangele ukuphahlazeka kwesistimu noma ukuqalisa kabusha.
(3) Ukuhlasela kwe-Smurf: umhlaseli usebenzisa ikheli lomthombo elikhohlakele lethagethi yokuhlasela ukuze aqhube inqubo ye-ping ekhelini lokusakaza. Bese bonke abasingathi abasebenzayo bazophendula okuqondiwe, okuholela ekuminyanisweni kwenethiwekhi noma ukuphazamiseka.
(4) Isikhukhula se-Ping: ukukhukhula uhlelo oluqondiwe yiziphepho zokusakaza ze-ping, ukuze uhlelo lungakwazi ukuphendula ekubhaleni okusemthethweni.
(5) I-SYN/SYN-ACK igcwele izikhukhula: ikhukhula isistimu yembobo eqondiwe ngephakethe le-SYN noma le-SYN / ACK.
(6) Vikela ukuhlasela kwe-TCP okungavumelekile: Vimbela ukugcwala kwedatha okubangelwa amaphakethe e-TCP angavumelekile.
(7) I-Ping of Death attack: Ithumela amaphakethe esicelo esikhulu kakhulu se-ICMP (“Ping”), inhloso yayo iwukubangela ukuchichima kwebhafa yokufakwayo kwekhompyutha okuhlosiwe, ukuze ikhompuyutha ikhubazeke.
5. Ukucindezelwa kwesiphepho: kungasethwa ngethrafikhi ye-Broadcast, multicast, DLF.
6. Ukulawula Ukufinyelela kwe-ACL: kusetshenziselwa ukulawula ukushintshaniswa kwephakethe kusuka echwebeni, ukuqinisekisa ukuthi isayithi le-intranet ngeke likwazi ukufinyelela kubasebenzisi ngaphandle kwegunya, kuyilapho livikela ngokungaqondile ukuhlasela kwe-ARP.
7. I-IGMP Snooping: Sekela inguqulo 2 ye-IGMP (RFC 2236): I-IGMP Snooping isetshenziselwa ukusungula amaqembu okusakaza okuningi ukuze adlulisele amaphakethe okusakaza okuningi ukuze kugwenywe ukumosha umkhawulokudonsa lapho inethiwekhi yephakethe le-multicast echichimayo.
8. Ukusekelwa kokuqinisekisa okungu-802.1x, kanye nokuhlinzeka abasebenzisi ngokufinyelela ekuqinisekiseni.
9. Ukuhlunga kwesivinini socingo – Isitoreji – imodi yokuya phambili, ehlinzeka ngesakhiwo sokushintsha esingavimbi sangempela.
10.Sekela umsebenzi wokwenza isibuko sechweba, ukuqoqwa kwechweba, umkhawulo wejubane lechweba.
11. Sekela i-VLAN esekwe ethekwini kanye ne-IEEE802.1Q esekelwe ku-VLAN .
♦Ukucaciswa komkhiqizo:
Imodeli yomkhiqizo | 24+2I-Gigabit Managed Fiber Switch |
Imbobo engashintshi | 24*1000M SFP amachweba+2*1000M RJ45 amachweba |
Umkhawulokudonsa wendiza yasemuva | 52Gbit |
Inqolobane | 32Mbits |
I-VLAN | 4K |
Ithebula lekheli le-MAC | 8K |
Ubude befreyimu | 9216B |
Imidiya Yenethiwekhi |
I-1000Base-LX: ukusetshenziswa kwe-laser ye-wavelength ende (1310nm) phezu kwe-multi-mode kanye ne-single mode fiber, i-multi-mode fiber, ibanga eliphakeme lingu-550m, imodi eyodwa 10-24km. I-1000Base-SX: 62.5μm i-multimode fiber, ibanga lokudlulisela eliphakeme lika-275m 50μm i-multimode fiber, ibanga lokudlulisela eliphakeme lamamitha angama-550. |
Isivumelwano esisekelwe | IEEE802.3,IEEE 802.3ab,IEEE 802.3x,IEEE802.1q,IEEE802.1p,IEEE802.1z,IEEE802.1d,IEEE802.1s,IEEE802.1w,IEEE802.1ax,IEEE802.1ak |
Izinga lokuhlunga nokudlulisela phambili | 1000Mbps:1488000pps |
Ubukhulu | 440x280x44mm (1U19 inch standard chassis) |
Ukusetshenziswa kwemvelo | Izinga Lokushisa Lesitoreji:-20 ℃~70℃;Umswakama wesitoreji5%~90%Ukungafinyeleli |
umsebenzi Temperature:0℃~40 ℃;umswakama womsebenzi10%~90%Ukungafinyeleli | |
Amandla | okokufaka:90-264VAC,50-60HZ;okukhiphayo:5V/12A |
Ukusetshenziswa kwamandla | 60W |
Izithombe zemininingwane yomkhiqizo:
Umhlahlandlela Womkhiqizo Ohlobene:
Ukuthuthuka kwethu kuncike emishinini ethuthukisiwe, amathalente amahle kakhulu kanye namandla obuchwepheshe aqinise ngokuqhubekayo ku-100% Original 1.25g Sfp Dual Fiber Optical Transceiver - 24+2 Management Gigabit Fiber Ethernet Switch JHA-S2024MG-26BC - JHA , Umkhiqizo uzohlinzeka yonke indawo umhlaba, njenge: Guatemala, Paraguay, Portland, Sihlose ukwakha uhlobo oludumile olungathonya iqembu elithile labantu futhi likhanyise umhlaba wonke. Sifuna abasebenzi bethu babone ukuzethemba, bese bethola inkululeko yezezimali, ekugcineni bathole isikhathi nenkululeko engokomoya. Asigxili ekutheni ingakanani ingcebo esingayenza, kunalokho sihlose ukuthola isithunzi esiphezulu futhi saziwe ngemikhiqizo yethu. Ngenxa yalokho, injabulo yethu itholakala ekwanelisekeni kwamakhasimende ethu kunokuba ingakanani imali esiyiholayo. Ithimba lethu lizokwenzela njalo.
Ngu-Agnes waseSenegal - 2018.09.29 13:24
Lona umthengisi ochwepheshe kakhulu, sihlala siza enkampanini yabo ukuze sithenge, ikhwalithi enhle futhi eshibhile.
Ngu-Natividad wase-Bahrain - 2017.11.29 11:09