This 2 day course covers issues and protocols in the TCP/IP environment. Students learn to troubleshoot common problems at all layers of the TCP/IP stack. Students also learn to examine, and analyze components using a network analyzer.

Objective:

Manage and troubleshoot TCP/IP environments. Know how IP addressing provides for the delivery of packets to the intended destination address. Know how to use the significant bits and bytes in the protocol headers to assist in troubleshooting. Analyze the operations of the TCP layer and look for solutions. Understand the functions of important upper-layer protocols to analyze trace files for erroneous conditions and solve them.

Course Agenda - Day 1

- Internet Protocol Suite (Background, RFCs, TCP/IP Suite, Addressing)

- Network layer protocols

- IP [Internet Protocol] (IP functions and addressing)

- Sub netting and subnet masks, IP routers, IP Type of Service, Differentiated Services

- MPLS

- IP fragmentation and reassembly, IP options and common problems

- Voice Over IP (VOIP, Jitter, RTP, H.323, SCCP, SIP)

- IP Version 6

- IP Multicasting

- ARP and Reverse ARP [Address Resolution Protocol] (Frame formats)

- DHCP [Dynamic Host Configuration Protocol] (Options and frame format)

- Internet Gateways (Routing algorithms – static and dynamic)

- ICMP (Internet Control Message Protocol)

- Vector distance and link state routing protocols

- RIP [Routing Information Protocol] (Slow Convergence)

- OSPF [Open Shortest Path First] (Frame formats and message types)

- HSRP, VRRP

- Troubleshooting IP problems with a network analyzer

Course Agenda - Day 2

- Transport layer protocols

- TCP [Transmission Control Protocol] (Functions of TCP, TCP header fields)

- TCP ports and sockets, common ports

- 3 Way Handshake (Starting a connection, Flow control, Sliding Window)

- Adaptive retransmission, Closing TCP connections, Optimizing segment sizes

- Windows TCP stack, Selective Acks and Window Scaling

- Common TCP problems and troubleshooting tips

- User Datagram Protocol [UDP] header

- Troubleshooting HTTP Application Protocol Problems

- Multi Tiered Application Troubleshooting