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Thiết bị Switch Cisco SG250-26-K9-EU

Thiết bị Switch Cisco SG250-26-K9-EU

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Mã sản phẩm : SG250-26-K9-EU

Thông số sản phẩm Switch Cisco SG250-26-K9-EU

  • Ports: 8 x SFP
  • Other ports: 2 x SFP combo
  • Managed: Yes
  • Form factor: Rack-mount

BẢO HÀNH: 12 THÁNG

(*) GIAO HÀNG HỎA TỐC NỘI THÀNH 1H

Mô tả

Switch Cisco SG250-26-K9-EU thuộc dòng sản phẩm Cisco Small Business 250 series. Thiết bị mạng Switch Cisco SG250-26-K9-EU được thiết kế để phù hợp ở cả 3 lớp mạng. Switch Cisco SG250-26-K9-EU cung cấp 24 10/100/1000 ports, 2 Gigabit copper/SFP combo ports cho các kết nối LAN tại các công ty vừa và nhỏ.

Thiết bị chuyển mạch Switch Cisco SG250-26-K9-EU

26-Port Gigabit Smart Switch CISCO SG250-26-K9-EU

Switch Cisco SG250-26-K9-EU để kết nối các máy tính, máy in, camera hoăc các thiết bị wifi trong 1 phòng ban, trong các doanh nghiệp nhỏ với số lượng user ít… hoặc sử dụng để mở rộng mạng LAN trong các công ty.

Thiết Bị Mạng Switch Cisco 26 Port Gigabit Smart SG250-26-K9

Tham khảo thêm sản phẩm Switch Enterprise Ciscotại đây

|| Bạn đang cần tư vấn giải pháp và thiết bị mạng phù hợp. Đừng ngại liên hệ ngay cho NetworkPro:

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THÔNG SỐ KỸ THUẬT

General Information
Interface
–  24 10/100/1000 ports
–  2 Gigabit copper/SFP combo ports
Manufacturer Part Number SG250-26-K9-EU
Product Series 250
Product Model SG250-26
Hardware
Capacity in Millions of Packets per Second (mpps) (64-byte packets) 38.69
Switching Capacity in Gigabits per Second (Gbps) 52.0
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 5 or better for 10BASE-T/100BASE-TX; UTP Category 5e or better for 1000BASE-T

LEDs System, Link/Act, PoE, Speed
Flash 256 MB
CPU 800 MHz ARM
CPU memory 512 MB
Packet Buffer 12 Mb
Environmental
Unit dimensions (W x H x D) 440 x 44 x 202 mm (17.3 x 1.45 x 7.95 in)
Unit weight 2.72 kg (6.0 lb)
Power 100 to 240V 50 to 60 Hz, internal, universal
Power Dedicated to PoE N/A
Number of Ports That Support PoE N/A
Certification UL (UL 60950), CSA (CSA 22.2), CE mark, FCC Part 15 (CFR 47) Class A
Operating temperature 32° to 122°F (0° to 50°C)
Storage temperature –4° to 158°F (–20° to 70°C)
Operating humidity 10% to 90%, relative, noncondensing
Storage humidity 10% to 90%, relative, noncondensing
Acoustic noise and MTBF
FAN (Number) No fan
Acoustic Noise
MTBF @50C (hr) 343,592
Miscellaneous
Package Contents
–  Cisco 250 Series Smart Switch
–  Power cord (power adapter for 8-port and 10-port SKUs)
–  Mounting kit
–  Quick Start Guide
Other Information
Minimum requirements
–  Web browser: Mozilla Firefox version 36 or later; Microsoft Internet Explorer version 9 or later, Chrome version 40 or later, Safari version 5 or later
–  Category 5 Ethernet network cable
–  TCP/IP, network adapter, and network operating system (such as Microsoft Windows, Linux, or Mac OS X) installed

Các tính năng của Switch Cisco SG250-26-K9-EU

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

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 LAG

VLAN

Support for up to 256 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. Auto voice capabilities deliver 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 4K 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

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

Wirespeed routing of IPv4 packets

Up to 32 static routes and up to 16 IP interfaces

IPv6 routing

Wirespeed 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

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 bootP/DHCP packets

Security

SSL

Secure Sockets Layer (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)

RADIUS authentication, guest VLAN, single/multiple host mode, and single/multiple sessions

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 plaintext or encrypted is provided according to the user-configured access level and the access method of the user

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

Access Control Lists (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 (DSCP)/IP precedence, TCP/UDP source and destination ports, 802.1p priority, Ethernet type, Internet Control Message Protocol (ICMP) packets, IGMP packets, TCP flag

STP loopback guard

Provides additional protection against Layer 2 forwarding loops (STP loops)

Quality of service

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

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