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DETALI INFORMACIJA

Gamintojas Hp
Tipas

Valdomi (managed) komutatoriai suteikia galimybę valdyti duomenų perdavimą vidiniame tinkle bei jų valdymą.

Nevaldomi komutatoriai tiesiog suteikia galimybę dviems įrenginiams, Ethernet jungties pagalba, pvz., kompiuteriui ir spausdintuvui sąveikauti. Įprastai tokio tipo įrenginiai vadinami «Plug-and-Play».

Managed
Base T jungčių skaičius

Nurodoma kiek įrenginys turi Base-T jungčių, dar kitaip vadinamų RJ45 ar tiesiog tinklo lizdų.

24
Jungčių tipas

LAN arba Ethernet jungtis tinklo kabeliui pajungti.

10/100 MB/s standartinis greitis, kuris būdingas beveik visiems maršrutizatoriams.

10/100/1000 MB/s arba GigaBit standartas dešimt kartų greitesnis, kuris kartu su Gigabit LAN tinklo plokštės pagalba leidžia vidiniame kompiuterių tinkle duomenis perduoti itin greitai. Toks sprendimas yra būtinas biuruose, kur tarp kompiuterių reikia dažnai nukopijuoti didelės apimties failus arba reikalingas spartus plačiajuostis interneto ryšys (su ~30 Mb/s) keliuose kompiuteriuose vienu metu.

10/100/1000 Mbps
RJ-45

SFP
Standartai ir protokolai

Belaidžio ryšio perdavimo standartai.

802.11G vis dar nenorinti pasiduoti senoji technologija technologija. Mat G standarto adapterius turi dauguma prieš kelerius metus pagamintų nešiojamųjų kompiuterių. Ryšys veikia 2,4 GHz bangų diapazonu. Teorinė jo sparta siekia 54 MB/s, kas šiais laikais yra gerokai per mažai.

802.11ac – tai naujas belaidžio ryšio standartas, užtikrinantis didelį perduodamų duomenų greitį 5 GHz dažnio intervale. Dėl to garantuojamas trukdžių ir užlaikymų nebuvimas, kai perduodamas srautinis HD video vaizdas, atliekami video skambučiai, veikia VoIP telefonija ar žaidžiami žaidimai. 802.11ac užtikrina spartų duomenų duomenų perdavimą iki 1,3 Gb/s sparta – trigubai greičiau negu naudojant ankstesnį 802.11n standartą.

IEEE 802.3
IEEE 802.3ab
IEEE 802.3at
IEEE 802.3u
Matmenys

Plotis x aukštis x gylis

440 x 43.6 x 36 mm
Svoris (kg) 7

Prekės aprašymas

HP FlexNetwork 5120 JG091B SI Switch 24-port
Prekės aprašymas anglų kalba:





Features and benefits
Quality of Service (QoS)
• Broadcast control: allows limitation of broadcast traffic rate to cut down on unwanted network broadcast traffic
• Powerful QoS feature: supports the following congestion actions: strict priority (SP) queuing, SDWRR, and SP+SDWRR
• Advanced classifier-based QoS: classifies traffic using multiple match criteria based on Layer 2, 3, and 4 information; applies QoS policies such as setting priority level and rate limit to selected traffic on a per-port basis Management
• Friendly port names: allows assignment of descriptive names to ports
• Remote configuration and management: enables configuration and management through a secure Web browser or a CLI located on a remote device
• Manager and operator privilege levels: provides read-only (operator) and read/write (manager) access on CLI and Web browser management interfaces
• Command authorization: leverages RADIUS to link a custom list of CLI commands to an individual network administrator's login; an audit trail documents activity
• Secure Web GUI: provides a secure, easy-to-use graphical interface for configuring the module via HTTPS
• Dual flash images: provides independent primary and secondary operating system files for backup while upgrading
• Multiple configuration files: stores easily to the flash image
• Complete session logging: provides detailed information for problem identification and resolution
• SNMPv1, v2c, and v3: facilitate centralized discovery, monitoring, and secure management of networking devices
• Remote monitoring (RMON): uses standard SNMP to monitor essential network functions; supports events, alarm, history, and statistics group plus a private alarm extension group
• IEEE 802.1AB Link Layer Discovery Protocol (LLDP): advertises and receives management information from adjacent devices on a network, facilitating easy mapping by network management applications
• Management VLAN: segments traffic to and from management interfaces, including CLI/Telnet, a Web browser interface, and SNMP
• Device Link Detection Protocol (DLDP): monitors a cable between two switches and shuts down the ports on both ends if the cable is broken, this prevents network problems such as loops
• Intelligent Resilient Fabric (IRF): allows configuration and management of a system of up to four devices by accessing a single switch connected with Gigabit Ethernet links; this has great advantages in reliability, distributed deployment, and easy management

Atsiliepimai

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HP HP FlexNetwork 5120 JG091B SI Switch 24-port HP FlexNetwork 5120 JG091B SI Switch 24-port
Prekės aprašymas anglų kalba:





Features and benefits
Quality of Service (QoS)
• Broadcast control: allows limitation of broadcast traffic rate to cut down on unwanted network broadcast traffic
• Powerful QoS feature: supports the following congestion actions: strict priority (SP) queuing, SDWRR, and SP+SDWRR
• Advanced classifier-based QoS: classifies traffic using multiple match criteria based on Layer 2, 3, and 4 information; applies QoS policies such as setting priority level and rate limit to selected traffic on a per-port basis Management
• Friendly port names: allows assignment of descriptive names to ports
• Remote configuration and management: enables configuration and management through a secure Web browser or a CLI located on a remote device
• Manager and operator privilege levels: provides read-only (operator) and read/write (manager) access on CLI and Web browser management interfaces
• Command authorization: leverages RADIUS to link a custom list of CLI commands to an individual network administrator's login; an audit trail documents activity
• Secure Web GUI: provides a secure, easy-to-use graphical interface for configuring the module via HTTPS
• Dual flash images: provides independent primary and secondary operating system files for backup while upgrading
• Multiple configuration files: stores easily to the flash image
• Complete session logging: provides detailed information for problem identification and resolution
• SNMPv1, v2c, and v3: facilitate centralized discovery, monitoring, and secure management of networking devices
• Remote monitoring (RMON): uses standard SNMP to monitor essential network functions; supports events, alarm, history, and statistics group plus a private alarm extension group
• IEEE 802.1AB Link Layer Discovery Protocol (LLDP): advertises and receives management information from adjacent devices on a network, facilitating easy mapping by network management applications
• Management VLAN: segments traffic to and from management interfaces, including CLI/Telnet, a Web browser interface, and SNMP
• Device Link Detection Protocol (DLDP): monitors a cable between two switches and shuts down the ports on both ends if the cable is broken, this prevents network problems such as loops
• Intelligent Resilient Fabric (IRF): allows configuration and management of a system of up to four devices by accessing a single switch connected with Gigabit Ethernet links; this has great advantages in reliability, distributed deployment, and easy management
JG091B 5 0
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