This course contains the repetition required, and the practical and theoretical exercises needed, to provide the students with the skills for becoming a troubleshooter of generic IP networks.
Firstly, the course contains theory chapters to ensure that the students understand how the data link layer work together with the TCP/IP protocol suite, and the common used features that can cause problems in your network. This includes issues such as auto-sensing, VLANs, subnetting, as well as redundancy logic on both layer 2(spanning tree) and layer 3(routing).
The course will attempt to help students to learn a method for how to perform structured troubleshooting in any generic IP network, including higher layer functions such as TCP/UDP, DHCP and DNS.
This course is suitable for anyone who works with hosts and/or network equipment and that needs to be able to troubleshoot network problems quickly and efficiently, with a good understanding of the bigger picture of IP networks and their functions.
The students need basic knowledge of TCP/IP and generic data communication, but repetition of these subjects will be included in the course.
This is a theoretical training with practical exercises.
NOTE: This course is not delivered with the FoldOut methodology.
Ethernet, Switching and VLAN
• HUBs, Bridges and Switches
• VLAN and 802.1Q
• Layer 2 redundancy
Learning to use Wireshark
• Basic traffic analysis
• Understanding display filtering
• Customizing Wireshark
• Viewing Flows
• Using Wireshark
Basic troubleshooting methodology
• How to troubleshoot
• Baselines and documentation
• Reference models
• Isolating the error
• Addressing and Subnetting
• Error handling; ICMP, Ping, Traceroute
• Network address translation
• Basics IPv6
IP Routing and Forwarding
• Using the routing table
• Static and default routing
• Dynamic routing protocols; RIP and OSPF
• IP Routing
• Switching and VLAN problems
• TCP and UDP
• Basics of Firewalls
• Domain name resolution (DNS)
• Overview of VoIP and QoS
• Lab 2 – Addressing, Static IP Routing. Using ping and traceroute
• Lab 3 – Routing, ACLs, Higher layers