The most important content of this chapter(1) Tasks of the physical layer.(2) Several commonly used channel multiplexing technologies.(3) Several commonly used broadband access technologies, focusing on FTTx. Table of contents 2.1. Basic concepts of physical layer2.2. Basic knowledge of data communication2.2.1. Model of data communication system2.2.2. Several basic concepts about channels2.2.3. Li... »
This experiment illustrates how to use dual-link hot backup (load sharing) to improve the reliability of wireless user data transmission. The case uses bypass layer 2 direct forwarding networking. Parametric planning Configuration items data AP management VLAN VLAN100 STA service VLAN VLAN101、VLAN102 AC backup VLAN VLAN110 SW1 communicates with Router SW1 creates VLANIF200 and configures the IP ad... »
Switch port mirroring configuration (Huawei, H3C) Port mirroring application scenario settingsH3C switch configuration port mirroringHuawei switch configuration port mirroring Port mirroring application scenario settings In order to strengthen network security protection, a company recently purchased a new IDS network security detection equipment. The configuration of the IDS detection equipment w... »
Table of contents 1. Introduction 1.1 Overview 1.2 Introduction to Cisco Packet Tracer Simulator 1.3 Preparing tools 2. Packet Tracer simulator installation 2.1 Simulator installation 2.2 Chinese simulator 2.3 The last step, I won’t say what the specific purpose is. Cisco simulator Cisco Packet Tracer 7.3.0 installation and configuration Installation package link Link:https://pan.baidu.com/s/1KZpi... »
eNSP (Enterprise Network Simulation Platform) is a free, scalable, graphical operation network simulation tool platform provided by Huawei. It mainly conducts software simulation of enterprise network routers and switches, perfectly presents the real equipment scene, and supports large-scale networks. Simulation gives users the opportunity to simulate drills and learn network technology without re... »
Table of contents Introduction 1. What is WebSocket? 2. Use WebSocket 1.WebSocket working principle 1.1 Handshake (establish connection) 1.2 Data transmission 2.WebSocket 2.1 Events 2.2 Method 2.3 Properties 3. WebSocket advantages 4. WebSocket usage scenarios Introduction Websocket is a network technology provided by HTML5 for full duplex communication between browser and server. It is based onTC... »
Network topology: Configuration points: Log in to the device through the console portConfigure the IP address of the router’s Ethernet portConfigure Telent passwordDetermine if Telent is correctVerify configuration Configuration steps: Log in to the device through the console portConfigure the IP address of the router’s Ethernet port Ruijie>enable //Enter privileged mode Ruijie#conf... »
Preface Main reference documents:Prysm official documentationSystem situation: Ubuntu 18.04 and has been replaced by Alibaba sourceConfiguration requirements: 1. What is Prysm? Prysm is an implementation of the Ethereum proof-of-stake consensus specification. Using Prysm to run a node and stake ETH can be divided into the following three steps: Use the execution layer client to configure the execu... »
The requirement is to monitor users who log in via websocket, and monitor who logs in and launches in real time. The first reaction is to obtain the session, and then various Baidu and online documents are always half and half. The obtained session is either null or different from the session in the ordinary class. Up code The previous ones are the same as most of the ones found in the search. You... »
