Opisanie:Kommutatory serii 10/100 Mbit/s D-Link DES-3500 yavlyayutsya vzaimno stekiruemymi kommutatorami urovnya dostupa, podderzhivayuschimi tehnologiyu Single IP Management (SIM, upravlenie cherez edinyy IP-adres). Eti kommutatory, imeyuschie 24 ili 48 10/100BASE-TX portov i 2 kombo-porta 1000BASE-T/SFP Gigabit Ethernet v standartnom korpuse dlya ustanovki v stoyku, razrabotany dlya gibkogo i bezopasnogo setevogo podklyucheniya. Kommutatory serii DES-3500 mogut legko ob'edinyat'sya v stek i nastraivat'sya vmeste s lyubymi drugimi kommutatorami s podderzhkoy D-Link Single IP Management, vklyuchaya kommutatory 3-go urovnya yadra seti, dlya postroeniya chasti mnogourovnevoy seti, strukturirovannoy s magistral'yu i centralizovannymi bystrodeystvuyuschimi serverami.Upravlenie cherez edinyy IP-adres (Single IP Management)Kommutatory serii DES-3500 uproschayut i uskoryayut zadachu upravleniya, t.k. mnozhestvo kommutatorov mogut nastraivat'sya, kontrolirovat'sya i obsluzhivat'sya cherez unikal'nyy IP-adres s lyuboy rabochey stancii, imeyuschey Web-brauzer.Ctek upravlyaetsya kak edinyy ob'ekt, i vse ustroystva steka opredelyayutsya po edinstvennomu IP-adresu. S pomosch'yu vstroennogo Web-menedzhera, mozhno poluchit' informaciyu, predstavlennuyu v vide dereva (Tree View) o chlenah steka i topologii seti s ukazaniem mestoraspolozheniya ustroystv steka i svyazey mezhdu nimi. Eto prostoe i dostatochno effektivnoe Web-upravlenie isklyuchaet neobhodimost' ustanovki dorogogo PO dlya SNMP-upravleniya.Rasshirennyy funkcii bezopasnostiSeriya DES-3500 obespechivaet rasshirennyy nabor funkciy bezopasnosti dlya upravleniya podklyucheniem i dostupom pol'zovateley. Etot nabor vklyuchaet Access Control Lists (ACL) na osnove MAS-adresov, portov kommutatora, IP adresov i/ili nomerov portov TCP/UDP, autentifikaciyu pol'zovateley 802.1h i kontrol' MAS-adresov. Pomimo etogo, DES-3500 obespechivaet centralizovannoe upravlenie administrativnym dostupom cherez TACACS+ i RADIUS. Vmeste s kontrolem nad setevymi prilozheniyami, eti funkcii bezopasnosti obespechivayut ne tol'ko avtorizovannyy dostup pol'zovateley, no i predotvraschayut rasprostranenie vredonosnogo trafika po setiRasshirennaya proizvoditel'nost' i dostupnost'Dlya povysheniya proizvoditel'nosti i bezopasnosti seti kommutatory serii DES-3500 obespechivaet rasshirennuyu podderzhku VLAN, vklyuchaya GARP/GVRP, 802.1Q i asimmetrichnye VLAN. Upravlenie polosoy propuskaniya pozvolyaet ustanovit' limit trafika dlya kazhdogo porta, chto daet vozmozhnost' upravlyat' ob'emom trafika na granice seti. Kommutator podderzhivaet ustanovku rezervnogo istochnika pitaniya. Drugie harakteristiki vklyuchayut podderzhku 802.3ad Link Aggregation, 802.1d Spanning Tree, 802.1w Rapid Spanning Tree i 802.1s Multiple Spanning Tree dlya povysheniya nadezhnosti i dostupnosti virtual'nogo steka.Mnogourovnevoe kachestvo obsluzhivaniya (QoS)Seriya DES-3500 imeet shirokiy nabor mnogourovnevyh (L2, L3, L4) QoS/CoS funkciy, dlya garantii togo, chto kriticheski vazhnye setevye servisy, podobnye VoIP, ERP, Intranet ili videokonferencii budut obsluzhivat'sya s nadlezhaschim prioritetom. Podderzhivayutsya 4 ocheredi prioritetov dlya 802.1p/TOS/DiffServ s klassifikaciey na osnove MAS-adresov istochnika i priemnik, IP-adresov istochnika ili priemnika i/ili nomerov portov TCP/UDP.Harakteristika:Kolichestvo portov• 24 porta 10/100BASE-TX, 2 kombo-porta 1000BASE-T/MiniGBIC (SFP)Standarty i funkcii• IEEE 802.3 10BASE-T/802.3u 100BASE-TX• IEEE 802.3ab 1000BASE-T/802.3z 1000BASE-SX/LX• ANSI/IEEE 802.3 NWay avtosoglasovanie• IEEE 802.3x upravlenie potokom• Avtomaticheskoe opredelenie polyarnosti MDI/MDIX• Zerkalirovanie portovPodderzhka SFP• IEEE 802.3z 1000BASE-LX (DEM-310GT transiver)• IEEE 802.3z 1000BASE-SX (DEM-311GT transiver)• IEEE 802.3z 1000BASE-LH (DEM-314GT transiver)• IEEE 802.3z 1000BASE-ZX (DEM-315GT transiver)• IEEE 802.3z 1000BASE-LX (DEM-330T transiver)• IEEE 802.3z 1000BASE-LX (DEM-330R transiver)• IEEE 802.3z 1000BASE-LX (DEM-331T transiver)• IEEE 802.3z 1000BASE-LX (DEM-331R transiver)Programmnoe obespechenieVLAN• IEEE 802.1Q Tagged VLAN• VLAN na baze portov• GARP/GVRP• Maksimal'noe kolichestvo VLAN na ustroystvo: 255 VLAN (summarno staticheskih i dinamicheskih)Ocheredi prioritetov (CoS)• Standart: IEEE 802.1p• Kolichestv ocheredey: 4Klassifikaciya trafika (CoS)Mozhet byt' osnovana na tipah prilozheniy, opredelennyh pol'zovatelem:• TOS• Diffserv (DSCP)• Na osnove portov• Na osnove MAC-adresa• Na osnove IP -adresa• Na osnove nomera porta TCP/UDPMehanizmy upravleniya ocheredyami prioritetov• Algoritm strogoy ocheredi prioritetov (Strict priority) i vzveshennoy spravedlivoy ocherednosti (weighted fair queuing)Upravlenie dostupom• Funkciya Port security (maks. 20 MAS-adresov)• Upravlenie dostupom 802.1x na baze portov• Upravlenie dostupom 802.1x na baze MAC-adresov• SSH v.1, v.2• SSL• Segmentaciya trafika (bez ili s tegami VLAN)• IP-MAC-Port Binding: 512 zapiseyAccess Control List• Mnogourovnevye ACL na osnove:-Nomera porta- TOS- Diffserv (DSCP)- MAC-adresa- IP -adresa- Tipa protokola paketa- Nomer porta TCP/UDP (na osnove prilozheniy, opredelennyh pol'zovatelem)- Poleznoy informacii TCP/UDP (na osnove soderzhimogo paketa, opredelyaemogo pol'zovatelem)- Opredelenie ACL dlya kazhdogo portaProtokol Spanning Tree• Sovmestimost' s 802.1D Spanning Tree• 802.1w Rapid Spanning Tree• 802.1s Multiple Spanning Tree• Fil'traciya BPDU dlya kazhdogo porta• Podderzhka STP Loopback DetectionGruppovaya rassylka IP• IGMP v.3 Snooping (maksimal'no 128 grupp)• Vozmozhnost' opredeleniya VLAN dlya gruppovoy rassylki• IGMP Fast Leave• Opredelyaemoe pol'zovatelem ogranichenie diapazona IP-adresov gruppovoy rassylki dlya kazhdogo porta• ISM VLANAgregirovanie portov• Maksimal'noe kolichestvo portov v trankovoy gruppe: 8• Maksimal'noe kolichestvo trankovyh grupp na ustroystvo: 6• Rabochiy rezhim: raspredelenie nagruzki• Staticheskie i dinamicheskie rezhimy Link Aggregation (LACP), sovmestimye s 802.3adFunkcii povysheniya proizvoditel'nosti• Segmentaciya trafika• Upravlenie polosoy propuskaniya (dlya portov Fast Ethernet – shag 1 Mbit/s, dlya portov Gigabit Ethernet – shag 8 Mbit/s)Proizvoditel'nost'Kommutacionnaya fabrika• 8.8 Gbit/sSkorost' peredachi paketov• 6.6 mln. paketov v sek.Metod kommutacii• Store-and-forwardRazmer tablicy MAC-adresov• 8 K zapisey na ustroystvoIzuchenie MAC-adresov• Dinamicheskoe: avtomaticheskoe obnovlenie• Staticheskoe: opredelennoe pol'zovatelemBufer RAM• 16 Mb na ustroystvoNastroyka i upravlenieUpravlenie• Single IP Management v.1• SNMP v.1, v.2c, v.3• Web-interfeys• Monitoring trafika s pomosch'yu graficheskogo interfeysa Web GUI• Prosmotr MAC –adresov cherez Web-interfeys• CLI (command line interface)• RMON monitoring• Telnet server (do 8 sessiy)• Autentifikaciya TACACS+ pri administrativnom dostupe k kommutatoru• Autentifikaciya RADIUS pri administrativnom dostupe k kommutatoru• SYSLOG• Podderzhka dvuh kopiy PO (Dual Images)• Funkciya Back-Door• Opisanie portov• Prosmotr utilizacii processora• RFC 2030 SNTP (Simple Network Time Protocol)• Interfeysy CIT i NMS (cherez protokol SNMP)• VT-100 CLI (command line interface)• Podderzhka DHCP/Bootp Relay i DHCP Relay Agent Option 82• Setevoe upravlenie cherez interfeys Ethernet• Vklyuchenie/otklyuchenie udalennogo upravleniya cherez Telnet, Web, SNMP• Prosmotr sostoyaniya portov cherez Web-interfeys• Dobavlenie, udalenie, izmenenie konfiguracii kommutatora• Podderzhka nastroyki neskol'kih portov v odno i tozhe vremya• NVRAM dlya hraneniya programmnogo obespecheniya i konfiguracii, podderzhka udalennogo obnovleniya po TFTP• RFC 3164 Syslog udalennaya zagruzka po trem razlichnym urovnyamMIB• 802.1Q Q-BRIDGE-MIB (RFC 2674)• 802.1p P-BRIDGE-MIB (RFC 2674)• MIB-II (RFC 1213)• Bridge MIB (RFC 1493)• RMON MIB (RFC 1757)• IGMP MIB (RFC 2833)• IF MIB (RFC 2233)• Ethernet-like MIB (RFC 1643)• PING-MIB and TRACEROUTE-MIB (RFC 2925)• ICMP Ping by MIB• Rate limiting by MIB• Save configuration by MIB• 802.1w setting and read by MIB• Port interface MIB-II trap (RFC 1215)• D-Link enterprise MIBGruppy RMON• 1, 2, 3, 9 (Alarm, Statistics, History, Event)Poluchenie IP-adresa• Cherez DHCP klient, Bootp klientObnovlenie programmnogo obespecheniya• TFTPKonsol'nyy port• DB-9 RS-232 DCEDDM (Digital Diagnostics Monitoring)• DaIndikatory• Na ustroystvo:- Power- Console- RPS• Na port:- 10/100 Mbps- GEPitanie• 100 ~ 240 V, 50/60 Gc• Vnutrenniy universal'nyy istochnik pitaniyaRezervnyy istochnik pitaniya• Raz'em dlya podklyucheniya k vneshnemu rezervnomu istochniku pitaniyaPotreblyaemaya moschnost'• 23 Vatt (maks.)Ventilyaciya• 40mm x 40mm DC ventilyator x 1Razmery• 441 x 207 x 44 mm (tol'ko ustroystvo)• 19" - dlya ustanovki v shkaf, 1 U vysotaVes• 2.56 kg (tol'ko ustroystvo)Rabochaya temperatura• 0o do 40o CTemperatura hraneniya• -40o do 70o CVlazhnost'• Ot 5% do 95% bez obrazovaniya kondensataKlassy bezopasnosti (EMI)• FCC Class A• CE Class A• C-TickBezopasnost'• CSA InternationalMTBF• 53818 chasov