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    Cisco switch CBS250-24P-4G (24xGbE,4xSFP,24xPoE+,195W,fanless) - REFRESH

    Přidat do oblíbenýchCisco switch CBS250-24P-4G (24xGbE,4xSFP,24xPoE+,195W,fanless) - REFRESH
    Provedení:Rack mounted 19"; Funkce:QoS (Quality of service), VLAN (virtual local area network), PoE (Power over ethernet), DHCP snooping, L2, L3, Web management/Smart switch; Technologie:Gigabit ethernet + Gigabit optika; Počet portů LAN:24; Počet portů LAN:24; Podporované standardy PoE:802.3af, 802.3at; PoE budget (W):195; Počet SFP portů:4.

    Kód produktu1608074
    Part numberCBS250-24P-4G-EU-RF
    EAN produktu889728494069
     
    Záruka:0 Om.Doživot
    Výrobce:Cisco
    Skladová dostupnost:Skladem
    Běžná cena
    9224 Kč
    Vaše cena bez DPH
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    Vaše cena včetně DPH
    7439 Kč
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    Cisco switch CBS250-24P-4G - REFRESH

    CISCO REFRESH jsou repasované produkty, které společnost CISCO dodává s certifikací kvality, zárukou a servisní podporou odpovídající ekvivalentnímu novému produktu

    Řada Cisco Business 250 představuje novou generaci cenově dostupných inteligentních switchů, které kombinují vysoký síťový výkon, zabezpečení a spolehlivost s komplexní sadou síťových funkcí potřebných pro spolehlivou síť malých firem.

    Záruka platná do End of Support 31. 10. 2029.
    Oznámení End of Life pro CISCO CBS250


    Stránky produktu: CBS250-24P-4G
    Quick start guide: Quick start guide
    Switching capacity (All switches are wire-speed and nonblocking)
    Forwarding rate in millions of packets per second (mpps; 64-byte packets) 41,66
    Switching capacity in Gigabits per second (Gbps) 56
    Layer 2 switching
    Spanning Tree Protocol (STP) Standard 802.1d spanning tree support
    Fast convergence using 802.1w (Rapid Spanning Tree Protocol [RSTP]), enabled by default
    Multiple spanning tree instances using 802.1s (MSTP); 8 instances are supported
    Per-VLAN Spanning Tree Plus (PVST+); 126 instances are supported
    Rapid PVST+ (RPVST+); 126 instances are supported
    Port grouping/link aggregation Support for IEEE 802.3ad Link Aggregation Control Protocol (LACP)
    Up to 4 groups
    Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad Link Aggregation Group (LAG)
    VLAN Support for up to 255 active VLANs simultaneously
    Port-based and 802.1Q tag-based VLANs
    Management VLAN
    Guest VLAN
    Voice VLAN Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS. Voice Services Discovery Protocol (VSDP) delivers networkwide zero-touch deployment of voice endpoints and call control devices
    Generic VLAN Registration Protocol (GVRP) and Generic Attribute Registration Protocol (GARP) Protocols for automatically propagating and configuring VLANs in a bridged domain
    IGMP (versions 1, 2, and 3) snooping Internet Group Management Protocol (IGMP) limits bandwidth-intensive multicast traffic to only the requesters; supports 255 multicast groups (source-specific multicasting is also supported)
    IGMP querier Used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router
    HOL blocking Head-of-Line (HOL) blocking prevention
    Loopback detection Provides protection against loops by transmitting loop protocol packets out of ports on which loop protection has been enabled. It operates independently of STP.
    Layer 3 routing
    IPv4 routing Wire-speed routing of IPv4 packets
    Up to 32 static routes and up to 16 IP interfaces
    IPv6 routing Wire-speed routing of IPv6 packets
    Layer 3 interface Configuration of Layer 3 interface on physical port, LAG, VLAN interface, or loopback interface
    Classless Interdomain Routing (CIDR) Support for CIDR
    Dynamic Host Configuration Protocol (DHCP) relay at Layer 3 Relay of DHCP traffic across IP domains
    User Datagram Protocol (UDP) relay Relay of broadcast information across Layer 3 domains for application discovery or relaying of Bootstrap Protocol (BootP)/DHCP packets
    Security
    Secure Sockets Layer (SSL) SSL encrypts all HTTPS traffic, allowing secure access to the browser-based management GUI in the switch
    Secure Shell (SSH) Protocol SSH is a secure replacement for Telnet traffic. Secure Copy (SCP) also uses SSH. SSH v1 and v2 are supported.
    IEEE 802.1X (authenticator role) Remote Authentication Dial-In User Service (RADIUS) authentication, guest VLAN, single/multiple host mode, and single/multiple sessions
    STP loopback guard Provides additional protection against Layer 2 forwarding loops (STP loops)
    Secure Core Technology (SCT) Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is received
    Secure Sensitive Data (SSD) A mechanism to manage sensitive data (such as passwords, keys, and so on) securely on the switch, populating this data to other devices, and secure autoconfig. Access to view the sensitive data as plain text or encrypted is provided according to the user-configured access level and the access method of the user
    Trustworthy systems Trustworthy systems provide a highly secure foundation for Cisco products
    Run-time defenses (Executable Space Protection [X-Space], Address Space Layout Randomization [ASLR], Built-In Object Size Checking [BOSC])
    Port security Ability to lock source MAC addresses to ports and limit the number of learned MAC addresses
    RADIUS Supports RADIUS authentication for management access. Switch functions as a client.
    Storm control Broadcast, multicast, and unknown unicast
    DoS prevention Denial-of-Service (DoS) attack prevention
    Multiple user privilege levels in CLI Level 1, 7, and 15 privilege levels
    Access Control Lists (ACLs) Support for up to 512 rules
    Drop or rate limit based on source and destination MAC, VLAN ID or IPv4 or IPv6 address, IPv6 flow label, protocol, port, Differentiated Services Code Point (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag; ACL can be applied on both ingress and egress sides
    Time-based ACLs supported
    QoS
    Priority levels 8 hardware queues
    Scheduling Strict priority and Weighted Round-Robin (WRR) queue assignment based on DSCP and class of service (802.1p/CoS)
    Class of service Port based; 802.1p VLAN priority based; IPv4/v6 IP precedence/Type of Service (ToS)/DSCP based; Differentiated Services (DiffServ); classification and re-marking ACLs, trusted QoS
    Rate limiting Ingress policer; egress shaping and rate control; per VLAN, per port, and flow based
    Congestion avoidance A TCP congestion avoidance algorithm is required to reduce and prevent global TCP loss synchronization
    Standards
    Standards IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab 1000BASE-T Gigabit Ethernet, IEEE 802.3ad Link Aggregation Control Protocol, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.3 ad LACP, IEEE 802.1D (STP), IEEE 802.1Q/p VLAN, IEEE 802.1w RSTP, IEEE 802.1s Multiple STP, IEEE 802.1X Port Access Authentication, IEEE 802.3af, IEEE 802.3at, RFC 768, RFC 783, RFC 791, RFC 792, RFC 793, RFC 813, RFC 879, RFC 896, RFC 826, RFC 854, RFC 855, RFC 856, RFC 858, RFC 894, RFC 919, RFC 920, RFC 922, RFC 950, RFC 951, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1213, RFC 1215, RFC 1286, RFC 1350, RFC 1442, RFC 1451, RFC 1493, RFC 1533, RFC 1541, RFC 1542, RFC 1573, RFC 1624, RFC 1643, RFC 1700, RFC 1757, RFC 1867, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2030, RFC 2131, RFC 2132, RFC 2233, RFC 2576, RFC 2616, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 3416, RFC 4330
    IPv6
    IPv6 IPv6 host mode
    IPv6 over Ethernet
    IPv6/IPv4 Dual Stack
    IPv6 Neighbor Discovery (ND)
    IPv6 stateless address auto configuration
    Path Maximum Transmission Unit (MTU) discovery
    Duplicate Address Detection (DAD)
    Internet Control Message Protocol (ICMP) version 6
    IPv6 over IPv4 network with Intrasite Automatic Tunnel Addressing Protocol (ISATAP) support
    USGv6 and IPv6 Gold Logo certified
    IPv6 QoS Prioritize IPv6 packets in hardware
    IPv6 ACL Drop or rate limit IPv6 packets in hardware
    Multicast Listener Discovery (MLD v1/2) snooping Deliver IPv6 multicast packets only to the required receivers
    IPv6 applications Web/SSL, Telnet server/SSH, Ping, Traceroute, Simple Network Time Protocol (SNTP), Trivial File Transfer Protocol (TFTP), Simple Network Management Protocol (SNMP), Remote Authentication Dial-In User Service (RADIUS), Syslog, DNS client, DHCP client, DHCP autoconfig
    IPv6 RFCs supported RFC 4443 (which obsoletes RFC 2463): ICMPv6
    RFC 4291 (which obsoletes RFC 3513): IPv6 address architecture
    RFC 4291: IPv6 Addressing Architecture
    RFC 2460: IPv6 Specification
    RFC 4861 (which obsoletes RFC 2461): Neighbor Discovery for IPv6
    RFC 4862 (which obsoletes RFC 2462): IPv6 Stateless Address Autoconfiguration
    RFC 1981: Path MTU Discovery
    RFC 4007: IPv6 Scoped Address Architecture
    RFC 3484: Default address selection mechanism
    RFC 5214 (which obsoletes RFC 4214): ISATAP tunneling
    RFC 4293: Management Information Base (MIB) IPv6: Textual Conventions and General Group
    RFC 3595: Textual Conventions for IPv6 Flow Label
    Management
    Cisco Business Dashboard Support for embedded probe for Cisco Business Dashboard running on the switch. Eliminates the need to set up a separate hardware or virtual machine for the Cisco Business Dashboard Probe on site.
    Cisco Business mobile app Mobile app for Cisco Business Switch and Wireless products. Helps to set up a local network in minutes and provide easy management at your fingertips.
    Cisco Network Plug and Play (PnP) agent The Cisco Network Plug and Play solution provides a simple, secure, unified, and integrated offering to ease new branch or campus device rollouts or for provisioning updates to an existing network. The solution provides a unified approach to provision Cisco routers, switches, and wireless devices with a near-zero-touch deployment experience.
    Supports Cisco PnP Connect
    Web user interface Built-in switch configuration utility for easy browser-based device configuration (HTTP/HTTPS). Supports configuration, wizards, system dashboard, system maintenance, and monitoring
    Basic and advanced mode for maximum operational efficiency
    SNMP SNMP versions 1, 2c, and 3 with support for traps, and SNMP v3 User-based Security Model (USM)
    Remote monitoring (RMON) Embedded RMON software agent supports 4 RMON groups (history, statistics, alarms, and events) for enhanced traffic management, monitoring, and analysis
    IPv4 and IPv6 dual stack Coexistence of both protocol stacks to ease migration
    Firmware upgrade Web browser upgrade (HTTP/HTTPS) and TFTP and upgrade over SCP running over SSH
    Dual images for resilient firmware upgrades
    Port mirroring Traffic on a port can be mirrored to another port for analysis with a network analyzer or RMON probe. Up to 4 source ports can be mirrored to one destination port
    VLAN mirroring Traffic from a VLAN can be mirrored to a port for analysis with a network analyzer or RMON probe. Up to 4 source VLANs can be mirrored to one destination port
    Dynamic Host Configuration Protocol (DHCP) (options 12, 59, 60, 66, 67, 125, 129, and 150) DHCP options facilitate tighter control from a central point (DHCP server), to obtain IP address, autoconfiguration (with configuration and image file download), DHCP Relay, and host name
    Secure Copy (SCP) Securely transfers files to and from the switch
    Autoconfiguration with SCP file download Enables mass deployment with protection of sensitive data
    Text-editable configs Config files can be edited with a text editor and downloaded to another switch, facilitating easier mass deployment
    Smartports Simplified configuration of QoS and security capabilities
    Auto Smartports Automatically applies the intelligence delivered through the Smartports roles to the port based on the devices discovered over Cisco Discovery Protocol or LLDP-MED. This facilitates zero-touch deployments.
    Text view Command-Line Interface (CLI) Scriptable CLI. A full CLI as well as a menu-based CLI is supported. User privilege levels 1, 7, and 15 are supported for the CLI.
    Localization Localization of GUI and documentation into multiple languages
    Login banner Configurable multiple banners for web as well as CLI
    Other management Traceroute; single IP management; HTTP/HTTPS; RADIUS; port mirroring; TFTP upgrade; DHCP client; Simple Network Time Protocol (SNTP); cable diagnostics; Ping; syslog; Telnet client (SSH secure support); automatic time settings from Management Station
    Green (power efficiency)
    Energy detect Automatically turns power off on RJ-45 port when detecting link down. Active mode is resumed without loss of any packets when the switch detects the link is up
    Cable length detection Adjusts the signal strength based on the cable length. Reduces the power consumption for shorter cables
    EEE compliant (802.3az) Supports IEEE 802.3az on all copper Gigabit Ethernet ports
    Disable port LEDs LEDs can be manually turned off to save on energy
    Time-based port operation Link up or down based on user-defined schedule (when the port is administratively up)
    Time-based PoE PoE power can be on or off based on user-defined schedule to save energy
    General
    Jumbo frames Frame sizes up to 9K bytes. The default MTU is 2K bytes
    MAC table 8K addresses
    Discovery
    Bonjour The switch advertises itself using the Bonjour protocol
    Link Layer Discovery Protocol (LLDP) (802.1ab) with LLDP-MED extensions Link Layer Discovery Protocol (LLDP) allows the switch to advertise its identification, configuration, and capabilities to neighboring devices that store the data in a MIB. LLDP-MED is an enhancement to LLDP that adds the extensions needed for IP phones
    Cisco Discovery Protocol The switch advertises itself using the Cisco Discovery Protocol. It also learns the connected device and its characteristics using Cisco Discovery Protocol
    Power over Ethernet
    802.3at PoE+ and 802.3af PoE delivered over any of the RJ-45 ports within the listed power budgets The following switches support 802.3at PoE+, 802.3af, and Cisco prestandard (legacy) PoE. Maximum power of 30.0W to any 10/100 or Gigabit Ethernet port, until the PoE budget for the switch is reached. The total power available for PoE per switch is as follows:
    Power dedicated to PoE 195 W
    Number of ports that support PoE 24
    Hardware
    Power Consumption
    System power consumption 110V=34.42W
    220V=33.09W
    Power consumption (with PoE) 110V=239.7W
    220V=236.4W
    Heat dissipation (BTU/hr) 820.28
    Ports
    Total system ports 28 Gigabit Ethernet
    RJ-45 ports 24 Gigabit Ethernet
    Combo ports (RJ-45 + SFP) 4 SFP
    Console port Cisco Standard RJ45 console port
    USB slot USB Type-A slot on the front panel of the switch for easy file and image management
    Buttons Reset button
    Cabling type Unshielded Twisted Pair (UTP) Category 5e or better for 1000BASE-T
    LEDs System, Link/Act, PoE, Speed
    Flash 256 MB
    CPU 800 MHz ARM
    DRAM 512 MB
    Packet Buffer
    Packet buffer 1,5 MB
    Supported SFP Modules
    MGBSX1 Multimode fiber
    MGBLX1 Single-mode fiber
    MGBLH1 Single-mode fiber
    MGBT1 UTP Category 5
    GLC-SX-MMD Multimode fiber
    GLC-LH-SMD Single-mode fiber
    GLC-BX-U Single-mode fiber
    GLC-BX-D Single-mode fiber
    GLC-TE UTP cat 5e
    Environmental
    Unit dimensions (W x D x H) 445 x 299 x 44 mm (17.5 x 11.77 x 1.73 in)
    Unit weight 3.53 kg (7.78 lb)
    Power 100 to 240V 50 to 60 Hz, internal, universal
    Certifications UL (UL 62368), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
    Operating temperature 23° to 122°F (-5° to 50°C
    Storage temperature -13° to 158°F (-25° to 70°C)
    Operating humidity 10% to 90%, relative, noncondensing
    Storage humidity 10% to 90%, relative, noncondensing
    Acoustic Noise and Mean Time Between Failure (MTBF)
    Fan (number) Fanless
    Acoustic noise N/A
    MTBF @ 25°C (hours) 698220
    Warranty
    Limited lifetime
    Package contents
    Package contents Cisco Business 250 Series Smart Switch
    Power cord
    Mounting kit
    Quick start guide
    .
    Maximální počet portů: 28
    Technologie: Gigabit ethernet + Gigabit optika
    Management: Web
    Management: SNMP/RMON
    Provedení: Rack mounted 19"
    PoE budget (W): 195
    Přenosová rychlost LAN (Mb/s): 1000
    Funkce: L2
    Funkce: Web management/Smart switch
    Funkce: QoS (Quality of service)
    Funkce: VLAN (virtual local area network)
    Funkce: DHCP snooping
    Funkce: L3
    Funkce: PoE (Power over ethernet)
    Počet SFP portů: 4
    Podporované standardy PoE: 802.3af
    Podporované standardy PoE: 802.3at
    Počet portů LAN: 24
    Ventilátor: Ne
    Počet PoE+ portů: 24
    Počet portů LAN: 24
    Maximální počet portů: 28
    Počet SFP portů: 4
    PoE budget (W): 195
    Počet PoE+ portů: 24
    Aktuální cena produktu je7439Kč  s dph
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