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    QUẢNG CÁO

    SF300 và SG300

    Cisco SF300-48 48-port 10/100 Managed Switch with Gigabit Uplinks
    Giá bán: 10,000,000 VND
    • Mã sản phẩm: SRW248G4-K9-EU
    • Tình trạng: Còn hàng
    • Giá trên đã bao gồm VAT, Giao hàng, lắp đặt, hướng dẫn và bảo hành tận nơi sử dụng
    • Bảo hành: 1 năm

      48-port 10/100Mbps Managed Switch CISCO SF300-48 ( SRW248G4-K9)

      -       Product ID Number: SRW248G4-K9

      -       48-port 10/100Mbps + 4-Port Gigabit Switch with WebView.

      -       48 10/100Mbps; 2 10/100/1000Mbps  ports; 2 Combo mini-GBIC ports.

      -       Performance: Switching capacity 17.6 Gbps, nonblocking, Forwarding rate 13.10 mpps wire-speed performance.

      -       Layer 2: Port grouping up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation, Number of VLANs 256 active VLANs (4096 range), Head-of-line (HOL) blocking HOL blocking prevention.

      -       Layer 3: IPv4 routing Wirespeed routing of IPv4 packets, Up to 32 static routes and up to 32 IP interfaces, Classless Inter-Domain Routing (CIDR) support for CIDR.

      -       QoS: Priority levels 4 : hardware queues, Scheduling: Priority queuing and weighted round-robin (WRR), Queue assignment based on DSCP and class of service (802.1p/CoS).

    Cisco SF300-48 48-port 10/100 Managed Switch with Gigabit Uplinks

     

    Performance

    Capacity in Mpps (64-byte packets): 13.10

    Switching Capacity in Gbps: 17.6

    Layer 2 Switching

    Spanning Tree Protocol: Standard 802.1d Spanning Tree support

    Fast convergence using 802.1w (Rapid Spanning Tree), enabled by default

    Multiple Spanning Tree instances using 802.1s

    Port Grouping: Support for IEEE 802.3ad Link Aggregation Control Protocol

    • Up to 8 groups

    • Up to 8 ports per group with 16 candidate ports for each (dynamic) 802.3ad link aggregation

    VLAN: Support for up to 256 VLANs simultaneously (out of 4096 VLAN IDs)

    Port-based and 802.1Q tag-based VLANs

    MAC-based VLAN

    Management VLAN

    Private VLAN Edge, also known as protected ports, with multiple uplinks

    Guest VLAN

    Unauthenticated VLAN

    Voice VLAN: Voice traffic is automatically assigned to a voice-specific VLAN and treated with appropriate levels of QoS

    Q-in-Q VLAN: VLANs transparently cross a service provider network while isolating traffic among customers

    Generic VLAN Registration Protocol/Generic Attribute Registration Protocol: Protocols for automatically propagating and configuring VLANs in a bridged domain

    Dynamic Host Configuration Protocol Relay at Layer 2: Relay of DHCP traffic to DHCP server in different VLAN. Works with DHCP Option 82

    Internet Group Management Protocol Versions 1, 2 and 3 snooping: IGMP limits bandwidth-intensive multicast traffic to only the requesters; supports 256 multicast groups (source-specific multicasting is also supported)

    IGMP Querier: IGMP querier is used to support a Layer 2 multicast domain of snooping switches in the absence of a multicast router.

    Head-of-Line (HOL) Blocking: HOL blocking prevention

    Layer 3

    IPv4 Routing: Wirespeed routing of IPv4 packets

    Up to 32 static routes and up to 32 IP interfaces

    Classless Inter-Domain Routing: Support for CIDR

    DHCP Relay at Layer 3: Relay of DHCP traffic across IP domains

    User Datagram Protocol Relay: Relay of broadcast information across Layer 3 domains for application discovery or relaying of BootP/DHCP packets

    Security

    Secure Shell Protocol: SSH secures Telnet traffic to and from the switch; SSH v1 and v2 are supported

    Secure Sockets Layer: SSL support: Encrypts all HTTPS traffic, allowing highly secure access to the browser-based management GUI in the switch

    IEEE 802.1X (Authenticator role): RADIUS authentication and accounting, MD5 hash; guest VLAN; unauthenticated VLAN, single/multiple host mode and single/multiple sessions

    Supports time-based 802.1X

    Dynamic VLAN assignment

    STP Bridge Protocol Data Unit Guard: A security mechanism to protect the network from invalid configurations.

    A port enabled for BPDU Guard is shut down if a BPDU message is received on that port

    Secure Core Technology: Ensures that the switch will receive and process management and protocol traffic no matter how much traffic is received

    Layer 3 Isolation: Allow/disallow routing between IP subnets or directly connected IP networks

    Layer 2 Isolation Private VLAN Edge (PVE) with community VLAN: PVE (also known as protected ports) provides Layer 2 isolation between devices in the same VLAN, supports multiple uplinks

    Port Security: Locks MAC addresses to ports, and limits the number of learned MAC addresses

    RADIUS/TACACS+: Supports RADIUS and TACACS authentication. Switch functions as a client

    Storm Control: Broadcast, multicast and unknown unicast

    DoS Prevention: DoS attack prevention

    Congestion Avoidance: A TCP congestion avoidance algorithm is required to minimize and prevent global TCP loss synchronization.

    ACLs: Support for up to 512 rules

    Drop or rate limit based on source and destination MAC, VLAN ID or IP address, protocol, port, differentiated services code point/IP precedence, TCP/ UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol packets, IGMP packets, TCP flag

    Quality of Service

    Priority Levels: 4 hardware queues

    Scheduling: Strict priority and weighted round-robin

    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/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

    Standards

    IEEE 802.3 10BASE-T Ethernet, IEEE 802.3u 100BASE-TX Fast Ethernet, IEEE 802.3ab 1000BASE-T Gigabit Ethernet, IEEE 802.3ad LACP, IEEE 802.3z Gigabit Ethernet, IEEE 802.3x Flow Control, IEEE 802.1D (STP, GARP, and GVRP),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 922, RFC 920, RFC 950, RFC 951, RFC 1042, RFC 1071, RFC 1123, RFC 1141, RFC 1155, RFC 1157, RFC 1350, RFC 1533, RFC 1541, RFC 1542, RFC 1624, RFC 1700, RFC 1867, RFC 2030, RFC 2616, RFC 2131, RFC 2132, RFC 3164, RFC 3411, RFC 3412, RFC 3413, RFC 3414, RFC 3415, RFC 2576, RFC 4330, RFC 1213, RFC 1215, RFC 1286, RFC 1442, RFC 1451, RFC 1493, RFC 1573, RFC 1643, RFC 1757, RFC 1907, RFC 2011, RFC 2012, RFC 2013, RFC 2233, RFC 2618, RFC 2665, RFC 2666, RFC 2674, RFC 2737, RFC 2819, RFC 2863, RFC 1157, RFC 1493, RFC 1215, RFC 3416

    IPv6

    IPv6: IPv6 host mode

    IPv6 over Ethernet

    Dual IPv6/IPv4 stack

    IPv6 neighbor and router discovery

    IPv6 stateless address auto-configuration

    Path maximum transmission unit discovery

    Duplicate address detection

    ICMP version 6

    IPv6 over IPv4 network with Intra-Site Automatic Tunnel Addressing Protocol support

    IPv6 QoS: Prioritize IPv6 packets in hardware

    IPv6 ACL: Drop or rate limit IPv6 packets in hardware

    Multicast Listener Discovery Snooping: Deliver IPv6 multicast packets only to the required receivers

    IPv6 Applications: Web/SSL, Telnet server/SSH, ping, traceroute, Simple Network Time Protocol, Trivial File Transfer Protocol, SNMP, RADIUS, syslog, DNS client, protocol-based VLANs

    IPv6 RFCs Supported: RFC 2463 - ICMP version 6

    RFC 3513 - IPv6 address architecture

    RFC 4291 - IPv6 addressing architecture

    RFC 2460 - IPv6 specification

    RFC 2461 - Neighbor discovery for IPv6

    RFC 2462 - IPv6 stateless address auto-configuration

    RFC 1981 - Path MTU discovery

    RFC 4007 - IPv6 scoped address architecture

    RFC 3484 - Default address selection mechanism

    RFC 4214 - ISATAP tunneling

    RFC 4293 - MIB IPv6: Textual conventions and general group

    RFC 3595 - Textual conventions for IPv6 flow label

    Power Efficiency

    Energy Detect: Automatically turns off power off on Gigabit Ethernet RJ-45 port when detecting link down

    Active mode is resumed without loss of any packets when the switch detects the link up

    Cable Length Detection: Adjusts the signal strength based on the cable length. Reduces the power consumption for cables shorter than 10 m.

    General Features

    Jumbo Frames: Frame sizes up to 10 KB supported on 10/100 and Gigabit interfaces

    MAC Table: Up to 8000 MAC addresses

    Discovery

    Bonjour: The switch advertises itself using the Bonjour protocol

    Link Layer Discovery Protocol (802.1ab) with LLDP-MED extensions: 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

    Ports

    Total System Ports: 48 Fast Ethernet + 4 Gigabit Ethernet

    RJ-45 Ports: 48 Fast Ethernet, 2 Gigabit Ethernet

    Combo Ports (RJ-45 + SFP): 2 Gigabit Ethernet Combo

    Buttons

    Reset button

    Cabling Type

    Unshielded twisted pair Category 5 or better for 10BASE-T/100BASE-TX; UTP Category 5 Ethernet or better for 1000BASE-T

    LEDs

    System, Link/Act, Speed

    Flash

    16 MB

    CPU

    128 MB memory

    Packet Buffer Memory

    8 MB* 2

    Power Supply

    100-240V 47-63 Hz, internal, universal

    Acoustic Noise

    43.1 dB at 30°C

    54.3 dB at 40°C

    MTBF

    @ 40°C (hours): 182540.0

    Certifications

    UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A

    Dimensions (DxWxH)

    13.78 x 17.3 x 1.45' (350 x 440 x 36.83 mm)

    Weight

    12.94 lb (5.87 kg)

     

     

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