USIO21 东芝交换机 TOSHIBA 模块进口备件

USIO21 东芝交换机 TOSHIBA 模块进口备件

网络交换机是一种用于在计算机网络中连接设备并转发数据包的网络设备。它们在现代计算机网络中起着至关重要的作用，通常用于创建局域网络（LAN）、广域网络（WAN）和数据中心网络。以下是网络交换机的一些一般特征和功能：

数据包交换：网络交换机能够接收数据包并将它们从一个端口转发到另一个端口，以实现设备之间的通信。这使得它们能够提供快速、点对点的数据传输。

端口数量：交换机可以拥有多个端口，通常有数十个、甚至数百个，以支持多个设备的连接。不同的交换机类型具有不同数量的端口。

局域网络：交换机通常用于创建局域网络（LAN），在企业、学校或家庭中连接多台计算机和其他网络设备。

VLAN 支持：一些交换机支持虚拟局域网络（VLAN），允许将网络划分为多个逻辑子网，提供更好的网络管理和隔离。

QoS 支持：质量服务（Quality of Service，QoS）功能允许交换机为不同类型的数据流分配不同的优先级，以确保关键应用的高性能。

管理功能：高级交换机通常提供远程管理功能，允许管理员配置和监视网络设置。

安全性：网络交换机通常包括安全功能，如访问控制列表（ACL）和端口安全，以确保网络的安全性。

扩展性：某些交换机支持堆叠或串联，以扩展端口数量和增加冗余性。

速度和带宽：交换机可以支持不同的数据传输速度和带宽，如千兆位（Gigabit）以太网和十千兆位（10 Gigabit）以太网。

生产厂商：各种厂商生产网络交换机，包括思科（Cisco）、惠普（HP）、华为（Huawei）、迈普（D-Link）等，每个厂商的产品都有自己的特点和规格。 

USIO21 东芝交换机 TOSHIBA 模块进口备件

A network switch is a network device used to connect devices in a computer network and forward data packets. They play a vital role in modern computer networks and are commonly used to create local area networks (Lans), wide area networks (Wans), and data center networks. The following are some general features and functions of network switches:

Packet switching: A network switch is capable of receiving packets and forwarding them from one port to another to enable communication between devices. This allows them to provide fast, point-to-point data transfers.

Number of ports: Switches can have multiple ports, often dozens or even hundreds, to support the connection of multiple devices. Different switch types have different numbers of ports.

Local Area Network: Switches are commonly used to create local area networks (Lans) to connect multiple computers and other network devices in a business, school, or home.

VLAN support: Some switches support virtual Local area networks (vlans), allowing the network to be divided into multiple logical subnets, providing better network management and isolation.

QoS support: The Quality of Service (QoS) feature allows the switch to assign different priorities to different types of data flows to ensure high performance for critical applications.

Management capabilities: Advanced switches typically provide remote management capabilities that allow administrators to configure and monitor network Settings.

Security: Network switches often include security features such as access control lists (ACLs) and port security to ensure the security of the network.

Scalability: Some switches support stacking or series in series to expand the number of ports and increase redundancy.

Speed and bandwidth: The switch can support different data transfer speeds and bandwidths, such as Gigabit Ethernet and 10 Gigabit Ethernet.

Manufacturers: Network switches are produced by various manufacturers, including Cisco, HP, Huawei, D-Link, etc. Each manufacturer's product has its own characteristics and specifications.