100% Original 1.25g Sfp Dual Fiber Optical Transceiver - 24+2 Gudanar da Gigabit Fiber Ethernet Canja JHA-S2024MG-26BC - JHA

24+2 Gudanar da Gigabit Fiber Ethernet Canja

Saukewa: JHA-S2024MG-26BC

24+2 Gigabit An GudanarFiber Switch

♦Samfurin ovkumaduba:

v JHA-S2024MG-26BC Series Gigabit Sarrafa Fiber Switches su ne na biyu, Layer na huɗu gigabit sarrafa sauyawa. Hardware yana goyan bayan sauya saurin waya na Layer na biyu. Masu amfani za su iya saita kowane nau'in ayyuka na sauyawa ta hanyar tashar Ethernet a WEB. Gina-ginen ARP da tsarin tsaro na DOS na iya kare kariya daga ARP, DOS da harin ƙwayoyin cuta daban-daban. Haka kuma JHA-S2024MG-26BC Series Sauyawa kuma sanye take da yawa iko fasali: a m QoS, spanning bishiya, a hadari kashewa, Bandwidth Control, IGMP Snooping, ACL damar iko, DHCP snooping da dai sauransu sosai dace da kananan da matsakaici-sized Enterprises, cibiyar sadarwa na harabar, da aikace-aikacen tattara cibiyar sadarwar yankin birni.

1. Tsaro na ARP: aikin adireshin MAC da haɗin tashar tashar jiragen ruwa da kuma tace adireshin tsaro na MAC na iya kare harin ARP yadda ya kamata; DHCP snooping na iya ba da kariya ta ARP ga masu amfani don samun MAC da ƙarfi.

2. Qos: goyon baya ga mahara QOS dabarun. Dangane da saitin fifiko na 802.1p, kowane tashar jiragen ruwa yana ba da layukan fifiko guda takwas. Ana iya raba IP-DSCP zuwa matakan sabis daban-daban bisa ga taken IP, don cimma cikakkiyar QOS. AUTO VOIP na iya saita tashar jiragen ruwa zuwa mafi girman fifiko na siginar murya, inganta ingancin muryar cibiyar sadarwar IP tarho sosai.

3. Itace Mai Kaya: Taimakawa ƙa'idar IEEE 802.1d da IEEE 802.1w (Rapid Spanning Tree Protocol) da IEEE 802.1s (Tsarin Tsarin Bishiya da yawa).

4. AUTO DOS: kare wannan hari na DOS da nau'i bakwai daban-daban.

(1) Harin ƙasa: maharin ya aika fakitin TCP SYN na jabu na bayanan da ke gudana tare da adireshin IP iri ɗaya, adireshin IP ɗin, tsarin wanda aka azabtar yana ƙoƙarin aika bayanan amsawa ga kansa, yana haifar da rikicewar tsarin kuma zai gurɓace ko sake farawa. .

(2) Harin Blat: maharin ya aika da jabun fakiti masu lambar tashar tashar ruwa iri ɗaya da lambar tashar tashar jiragen ruwa, tsarin da abin ya shafa yayi ƙoƙarin aika bayanan martani ga kansa, yana haifar da rushewar tsarin ko sake farawa.

(3) Harin Smurf: wanda ya kai harin yana amfani da adreshin tushe mara tushe na hari don aiwatar da tsarin ping zuwa adireshin watsa shirye-shirye. Sannan duk runduna masu aiki za su mayar da martani ga abin da aka sa a gaba, wanda zai haifar da cunkoson hanyar sadarwa ko rushewa.

(4) Ambaliyar Ping: ambaliya tsarin da aka yi niyya ta hanyar guguwar watsa shirye-shiryen ping, ta yadda tsarin ba zai iya amsa wasiƙar da ta dace ba.

(5) SYN/SYN-ACK ambaliya: ambaliya tsarin ramin ramin ta SYN ko SYN/ACK fakiti.

(6) Kare harin TCP mara inganci: Hana ambaliya data haifar da ingantattun fakitin TCP.

(7) Ping of Death harin: Yana aika manyan buƙatun buƙatun ICMP ("Ping"), manufarsa ita ce haifar da buffer ɗin shigar da kwamfuta da aka yi niyya, ta yadda kwamfutar ta lalace.

5. Ƙunƙarar guguwa: za a iya saita shi tare da Watsa shirye-shirye, multicast, DLF zirga-zirga.

6. ACL Access Control: ana amfani dashi don sarrafa musayar fakiti daga tashar jiragen ruwa, don tabbatar da cewa rukunin yanar gizon ba zai sami damar yin amfani da masu amfani ba tare da izini ba, yayin da yake kare harin ARP a kaikaice.

7. IGMP Snooping: Taimakawa nau'in IGMP 2 (RFC 2236): Ana amfani da IGMP Snooping don kafa ƙungiyoyin multicast don tura fakitin multicast don guje wa ɓata bandwidth lokacin da fakitin multicast ya mamaye cibiyar sadarwa.

8. Taimako don tabbatarwa na 802.1x, da kuma samar da masu amfani da damar yin amfani da tabbaci.

9. Wire-gudun tacewa - Adanawa - yanayin gaba, samar da tsarin sauyawa na gaskiya ba tare da toshewa ba.

10.Support aikin madubi tashar jiragen ruwa, tashar tashar jiragen ruwa, iyakar saurin tashar jiragen ruwa.

11. Goyi bayan VLAN na tushen tashar jiragen ruwa da IEEE802.1Q dangane da VLAN.

♦Bayanin samfur: