Switch chia mạn PoE Cisco 8Port 10/100Mbps SF302-08P chính hãng giá rẻ

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    Switch chia mạng PoE Cisco 8Port 10/100Mbps SF302-08P

    Giới thiệu chung
    Switch chia mạng PoE Cisco 8Port 10/100Mbps SF302-08P là một những thiết bị quan trọng dùng để kết nối các đoạn mạng lại với nhau theo mô hình mạng hình sao (Star). Theo mô hình này, thiết bị đóng vai trò là switch trung tâm, tất cả các máy tính đều được nối về đây trong một hệ thống mạng.
    Tính năng switch mạng Cisco 8Port 10/100Mbps PoE – Cisco SF302-08P
    – Product ID Number: SRW208P-K9
    – 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.
    – 8port 10/100 + 2 Combo mini-GBIC ports.
    – Performance: Switching capacity 5.6 Gbps, nonblocking, Capacity in Millions of Packets per Second (64-byte packets) 4.17 mpps.
    – 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 8Port 10/100Mbps PoE – Cisco SF302-08P hiệu suất cao và sử dụng công nghệ tiên tiến
    . Fast store-and-forward switching xác định các gói tin bị hư hỏng và ngăn ngừa chúng khỏi bị truyền qua mạng. Tất cả những tính năng chạy tự động, không có quản lý hoặc cấu hình yêu cầu
    Cisco 8Port 10/100Mbps PoE – Cisco SF302-08P mang hiệu suất cao để chạy các ứng dụng viễn thông, bao gồm cả các dịch vụ video băng thông. Nâng cao công suất và hiệu suất truyền tải, cho phép bạn chuyển các tập tin lớn trong vài giây

    – Hỗ trợ cho các công nghệ tiên tiến: Tất cả các thiết bị chuyển mạch Cisco bao gồm các tính năng giao thông xử lý tiên tiến để giữ cho các ứng dụng chạy ở hiệu suất cao điểm.
    . Tích hợp QoS thông minh trên tất cả các mô hình tự động ưu tiên dịch vụ chậm trễ nhạy cảm như thoại hoặc video để cải thiện hiệu suất mạng.

    Thông số kỹ thuật
    Performance
    Capacity in Mpps (64-byte packets): 4.17
    Switching Capacity in Gbps: 5.6
    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
    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
    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
    Power Over Ethernet
    Power Dedicated to PoE: 62W
    Number of Ports That Support PoE: 8
    Power Consumption
    Power Savings Mode: Energy Detect
    Power Consumption Worst Case: 110V=75.3W
    220V=75.7W
    Heat Dissipation (BTU/hr): 258.3
    Ports
    Total System Ports: 8 Fast Ethernet + 2 Gigabit Ethernet
    RJ-45 Ports: 8 Fast 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, PoE, Speed
    Flash
    16 MB
    CPU
    128 MB memory
    Packet Buffer Memory
    4 MB
    Power Supply
    100-240V 47-63 Hz, internal, universal
    MTBF
    @ 40°C (hours): 65,527
    Certifications
    UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
    Dimensions (DxWxH)
    6.7 x 11 x 1.45′ (170 x 279.4 x 36.83 mm)
    Weight
    2.67 lb (1.21 kg)


    Chỉnh sửa lần cuối bởi ntanhvtx; 23/11/2019 vào lúc 10:06 AM.
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