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Duration 21 hours
Course Outline
Fundamentals of Networking and the OSI Reference Model
- Overview of data networks
- Differences between LAN and WAN
- Application types and their specific requirements
- Functions of the OSI Reference Model and the modular design of data networks
LAN Technologies and Ethernet Protocols
- The Ethernet protocol and standards (10M/100M/1G/10Gbps)
- Ethernet media types, including twisted pairs, cable categories (5/5e), and fiber optic cables/connectors
- The CSMA/CD algorithm
- Frame structures (802.3, Ethernet-2, Ethernet-SNAP)
- Common troubleshooting issues
LAN Switching: Functionality and Operation
- Characteristics and operation of LAN bridges
- Operational principles of LAN switches
- Switching technologies, including Half-Duplex/Full-Duplex (HD/FD) and auto-negotiation
- Virtual LANs (VLANs) and VLAN tagging
- Spanning Tree Protocols (STP/RSTP/MSTP)
- Link Aggregation (LAG) and EtherChannel; LAN structures and topologies
- Switching in Data Center environments
WAN Protocols and Services
- Public network structure, focusing on access, transmission, and switching
- Legacy network architectures and protocols
- End-to-end services: Frame Relay (FR), ATM, and Leased Lines
- Transmission services: SDH and WDM/DWDM
- Access services: xDSL and Cable TV/DOCSIS
- Next-generation networks
- End-to-end services: Carrier Ethernet and IP-based MPLS services
- Transmission networks: Carrier Ethernet
- Access networks: Advanced xDSL, DOCSIS, and Optical technologies
Wireless Networks and Wi-Fi
Network architecture, including key elements and topologies
The Physical Layer
- IEEE 802.11a/b/g
- IEEE 802.11n, focusing on OFDM and MIMO
MAC Layer - Contention Resolution
- CSMA/CA, RTS, CTS, and NAV
- IEEE 802.11 Frame Format and Addressing
Advanced Features
- Wi-Fi security standards: WEP, EAP, TLS, TTLS, and 802.11x
Wi-Fi Quality of Service (QoS): Contention-based access (AIFS, Access Categories, Contention Windows) and controlled access (Polling, TXOPs). Managing QoS via ADDTS, Traffic Streams, and TSPECs.
- Cellular Networks
Introduction
- Frequency spectrum reuse
- Call setup and management
- Key network elements: MSC, BSC, BTS, and terminals
- Handover procedures and channel management
Standards and Evolution
3GPP, 3GPP2, and IMT-2000
Network evolution: From cdma1 to EVDO/DV and from GSM to HSPA and LTE
Introduction to TCP/IP
- The TCP/IP model and common protocols
- Protocol operations
- Key standardization bodies
IPv4: Protocol and Addressing
- Characteristics of IP
- ARP (Address Resolution Protocol)
- IP frame structure
- IP addressing and address classes
- Private vs. public addressing
- Subnetting IP address spaces using VLSM and CIDR
- IP address design (Practical Exercise)
- DHCP (Dynamic Host Configuration Protocol)
- Multicast and IGMP
IPv6: Protocol and Addressing
- IPv6 characteristics and comparison with IPv4
- Packet structure and headers (Overview)
- IPv6 addresses and address categories
- The Auto-configuration process
- Migrating from IPv4
Layer 4 Protocols: TCP and UDP
- Overview of Layer 4 protocols and well-known ports
- UDP packet structure and operation
- TCP packet structure and operation
- TCP connectivity and reliability mechanisms
- TCP sliding window, slow-start, and congestion avoidance
- Sequence and acknowledgment numbers
- Calculating TCP maximum throughput (based on Window Size and RTT)
- Go-back-N and Selective Repeat mechanisms
- TCP performance challenges
Routing and Layer 3 Switching Fundamentals
- Principles of the routing process
- Routing domains and areas
- Static vs. dynamic routing
- Distance-vector and Link-state protocols
- Routing metrics
- RIP and OSPF
- BGP: eBGP and iBGP
- Layer 3 Switching
- Static and Dynamic NAT
- HSRP and VRRP
- QoS in IP Networks
QoS Parameters: Bandwidth, Delay, Jitter, and Packet Loss
- Application requirements and network behavior
- Classification, marking, policing, shaping, queuing, and RED/WRED
Network Security Fundamentals and Components
- Basics of network security, threats, and vulnerabilities
- Secure network architecture: Firewalls (FWs), VPNs, NACs, and security devices
- Firewall operation: Packet filtering and stateful inspection
- Security protocols: Encryption and Authentication
- Types and definitions of encryption
- Symmetric-key algorithms, block and stream ciphers
- Public-key cryptography
- Hash Functions
- Authentication basics
- Multi-factor authentication
- Tokens, Smart Cards, and Wireless encryption protocols
- OTP (One-Time Passwords)
Introduction to Data Network Design
- Introduction to Network Engineering
- Requirements analysis
- Flow models
- High-Level Architecture Design
- Component and Reference architectures
- Architectural models
- Systems and network architectures
- Selecting service and vendor architectures
- Low-Level Topology Design
- Enterprise network design
- LAN/WAN design
- IP network design
- Security and privacy design
- Network management design
- Network operations design
Requirements
Prior technical proficiency with basic computer operating systems is required.
Custom Corporate Training
Training solutions designed exclusively for businesses.
- Customized Content: We adapt the syllabus and practical exercises to the real goals and needs of your project.
- Flexible Schedule: Dates and times adapted to your team's agenda.
- Format: Online (live), In-company (at your offices), or Hybrid.
Price per private group, online live training, starting from 3900 € + VAT*
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Testimonials (2)
The complexity and the way of approaching and presenting the concepts
Andreea GINGU
Course - Data Communications Networks - Theory and Practice
He is very creative and He likes for us to have good questions.
