Data Communications Networks - Theory and Practice培训

课程编码

datacomnet

课程时长

21 小时 通常来说是3天,包括中间休息。

要求

Technical familiarity with basic computer operating systems.

课程概览

数据Communication课程介绍了操作数据通信网络的基本理论,从OSI-RM,LAN,WAN,TCP / IP和基本网络安全和网络应用程序开始。该课程为学生提供了架构,硬件组件,软件配置和数据通信网络结构的一般知识。

Machine Translated

课程大纲

  • Introduction to networking and the OSI reference model

    • Introduction to data networks
    • LAN and WAN
    • Application types and requirements
    • The OSI-RM functions and the modular structure of the data network
  • Introduction to LAN technology and theEthernet protocols

    • The Ethernet protocol and 10M/100M/1G/10Gbps Ethernet
    • Ethernet media types (Twisted Pairs, cable categories - 5/5e, fiber optical cables and connectors)
    • CSMA/CD algorithm
    • Frame structure (802.3, 802.3, Ethernet-2, Ethernet-SNAP)
    • Common problems
  • LAN Switching – Functionality and Operation

    • The LAN bridge characters and operation
    • LAN switch operation
    • LAN switches technology – HD/FD and auto-negotiation
    • VLANs (Virtual LAN) and VLAN tagging
    • The Spanning Tree protocols - STP/RSTP/MSTP
    • LAG and Etherchannel. LAN Structure and topologies
    • Data Center switching
  • WAN Protocols and Services

    • The public network structure – access transmission and switching.
    • Traditional Networks architecture and protocols
      • End to end services - FR, ATM and Leased lines
      • Transmission services – SDH and WDM/DWDM
      • Access services – xDSL, CaTV/DOCSIS
    • The new generation networks
      • End to end services – Carrier Ethernet and MPLS IP-Based services
      • Transmission networks – Carrier Ethernet
      • Access networks – advanced xDSL, DOCSIS and Optical technologies
  • Wireless Network and Wi-Fi

  • Network architecture – elements and network topologies

  • The physical layer

    • 801.11a/b/g
    • 801.11n - OFDM ad MIMO
  • The MAC layer - Contention Resolution

    • CSMA/CA, RTS, CTS and NAV
    • IEEE 802.11 Frame Format and Addressing
  • Additional features

    • WiFi security – WEP, EAP, TLS, TTLS and 802.11x

WiFi QoS - Contention Based Access - AIFS, Access Categories and Contention Windows. Controlled Access - Polling and TXOPs. Controlling Quality of Service - ADDTS, Traffic Streams and TSPECs.

  • Cellular Networks

Introduction

  • Frequencies spectrum re-use
  • Call setup and management,
  • The main servers - MSC, BSC, BTS and terminals
  • Handovers and Channels

Standards and evolution

  • 3GPP, 3GPP2 and IMT-2000

  • Networks evolution – cdma1 to EVDO/DV and GSM to HSPA and LTE

  • Introduction to TCP/IP

    • The TCP/IP model and Common protocols
    • Protocols operation
    • Standard organizations
  • IPv4 – Protocol and Addressing

    • IP characteristics
    • ARP – Address Resolution Protocol
    • The IP frame structure
    • IP addressing and address classes
    • Private and public addresses
    • Subnetting an IP address space – VLSM and CIDR
    • IP address design (Exercise)
    • DHCP – Dynamic Host Configuration Protocol
    • Multicast and IGMP
  • IPv6 – Protocol and Addressing

    • IPv6 characteristics and comparison to IPv4
    • Packet structure and headers (brief)
    • IPv6 addresses and address categories
    • The Auto-configuration process
    • Migration from IPv4
  • L4 Protocols – TCP and UDP

    • Introduction to layer 4 protocols and Well known ports
    • UDP packet structure and operation
    • TCP packet structure and operation
    • TCP connectivity and reliability
    • TCP sliding window, slow-start and congestion avoidance
    • Sequence and acknowledge numbers
    • TCP maximum throughput (WS and RTT) calculation
    • Go-back-N and Selective-Repeat
    • TCP performance issues
  • Routing and L3 Switching basics

    • Routing process principles
    • Routing domains and areas
    • Static and dynamic routing
    • Distance-vector and Link-state protocols
    • Routing metrics
    • RIP and OSPF
    • BGP – eBGP and iBGP
    • L3 Switching
    • Static and Dynamic NAT
    • HSRP and VRRP
    • QoS in IP Networks
  • QoS parameters – Bandwidth, Delay, Jitter and Packet Loss

    • Applications requirements and network behavior
    • Classification and marking, Policing and shaping, Queuing, RED/WRED
  • Network Security Basics and Components

    • Network security Basics, threats and Vulnerabilities.
    • Secured network architecture – FWs, VPN's, NACs, and security devices.
    • FW operation – packet filtering and statefull inspection.
    • Security protocols – Encryption and Authentication
    • Encryption types and definitions
      • Symmetric-key algorithm. Block and Stream Cyphers.
      • Public-key cryptography.
      • Hash Functions.
    • Authentication basics
      • Multi-factor authentication
      • Tokens and Smart Card Encryption Wireless encryption protocols
      • OTP - One Time Passwords
  • Introduction to Data Networks Design

    • Introduction to Network Engineering
      • Requirements analysis
      • Flow models
    • Architecture (High-Level) Design
      • Component architecture and the Reference architecture
      • Architectural models
      • Systems and network architectures
      • Service and vendor architecture choices
    • Topology (Low-Level) Design
      • Enterprise networks design
      • LAN/WAN design
      • IP networks design
      • Security and privacy design
      • Network management design
    • Network operations design

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