数据包和帧之间的区别 [英] Difference between PACKETS and FRAMES

问题描述

网络世界中常用的两个词——数据包和帧.

Two words commonly used in networking world - Packets and frames.

谁能详细说说这两个词的区别?

Can anyone please give the detail difference between these two words?

希望它可能听起来很傻，但它的意思如下

Hope it might sounds silly but does it mean as below

数据包是网络 OSI 模型的第 3 层(网络层 - ip 数据包)的 PDU(协议数据单元).

A packet is the PDU(Protocol Data Unit) at layer 3 (network layer - ip packet) of the networking OSI model.

帧是 OSI 模型的第 2 层(数据链路)的 PDU.

A frame is the PDU of layer 2 (data link) of the OSI model.

推荐答案

Packets 和 Frames 是 协议数据单元 (PDU) 在不同 网络层

Packets and Frames are the names given to Protocol data units (PDUs) at different network layers

• 段/数据报是传输层中的数据单元.

在互联网的情况下，Segment 一词通常指的是 TCP，而 Datagram 通常指的是 UDP.然而，Datagram 也可以在更一般的意义上使用并引用其他层(链接):

In the case of the internet, the term Segment typically refers to TCP, while Datagram typically refers to UDP. However Datagram can also be used in a more general sense and refer to other layers (link):

数据报

一个自包含、独立的数据实体，携带足够的信息，可以从源计算机路由到目标计算机，而不依赖于该源计算机和目标计算机以及传输网络之间的早期交换.

A self-contained, independent entity of data carrying sufficient information to be routed from the source to the destination computer without reliance on earlier exchanges between this source and destination computer andthe transporting network.

数据包是网络层中的数据单位(在互联网的情况下是IP)

Packets are units of data in the Network Layer (IP in case of the Internet)

帧是链接层中的数据单位(例如 Wifi、蓝牙、以太网等).

Frames are units of data in the Link Layer (e.g. Wifi, Bluetooth, Ethernet, etc).

这篇关于数据包和帧之间的区别的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！