In this course, you will learn and practice techniques to monitor and troubleshoot routed and switched networks through extensive hands-on lab exercises. Troubleshooting methods, approaches, procedures, and tools are explored. A series of different organizations are introduced for each a set of troubleshooting scenarios that are presented. You will attempt to solve as many of the troubleshooting tickets as you can; the debrief includes review information that will help you further understand the specific issues raised in the scenarios.
- Troubleshooting methods, approaches, and procedures
- Recommended network maintenance practices
- Using basic and specialized troubleshooting tools
- A redundant Internet gateway or redundant ISP fails to provide backup connectivity
- OSPF, EIGRP and BGP issues, including redistribution
- HSRP, VRRP, and GLBP issues
- EtherChannel issues
- Other issues including NTP, DNS, default routes, IP SLAs, AAA, and GRE
- When headquarters or branch clients are unable to access internal devices or the Internet
- When you are unable to connect to a network device using SSH or Telnet
- When devices are unable to acquire a DHCP-provided address
If you would like to provide feedback for this course, please e-mail the NICCS SO at NICCS@hq.dhs.gov.