Cisco TSHOOT 2.0: Troubleshooting FHRP

Professionals who work in complex network environments desiring the skills they need to maintain their networks and to diagnose and resolve network problems quickly and effectively. The TSHOOT learning path will provide information about troubleshooting and maintaining particular technologies as well as the procedural and organizational aspects of the troubleshooting and maintenance process. A large part of the training will consist of practicing these skills and reinforcing the concepts by putting them to use in a controlled environment. At the end of the learning path, you should have increased your skill level and developed a set of best practices that are based on your own experience that you can take back to your organization.


Expected Duration
149 minutes

An essential element in building highly available networks is the implementation of a First Hop Redundancy Protocol (FHRP). FHRPs, such as the Hot Standby Router Protocol (HSRP), Virtual Router Redundancy Protocol (VRRP), and Gateway Load Balancing Protocol (GLBP), can prevent loss of connectivity by providing redundant default gateway functionality in a way that is transparent to the end hosts. Performance issues can adversely affect a business as employees may not be able to service their customers correctly. But does a network cause the problem or does a client, a server, or an application cause the problem? It is important to establish the realistic network performance expectations, and to be able to determine if switches are not performing as expected. It is also important to identify and possibly resolve the cause of the observed difference between the expected performance and the actual performance. This course reviews the operation of the common FHRPs and how to use Cisco IOS commands to diagnose and resolve problems that might occur while using these protocols. Using Cisco IOS commands to diagnose physical and data link layer problems on switch ports is also covered.


Troubleshooting HSRP

  • start the course
  • recognize HSRP operational issues that can occur
  • troubleshoot a HSRP preempt issue
  • troubleshoot a HSRP priority issue
  • troubleshoot a HSRP virtual address issue
  • troubleshoot an HSRP IP address issue
  • troubleshoot a HSRP object tracking issue
  • troubleshoot a HSRP peer issue
  • describe HSRP authentication operations

Troubleshooting VRRP

  • describe VRRP operational issues that can occur
  • verify a VRRP configuration
  • troubleshoot a VRRP preemption issue
  • troubleshoot an VRRP IP address issue
  • troubleshoot a VRRP object tracking issue

Troubleshooting GLBP

  • describe GLBP operational issues that can occur
  • verify a GLBP configuration
  • troubleshoot a GLBP preemption issue
  • troubleshoot an GLBP IP address issue
  • troubleshoot a GLBP object tracking issue
  • identify how to troubleshoot various FHRP issues

Practice: Troubleshooting FHR Protocols

  • troubleshoot a FHRP in a given scenario





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