CCIE R&S V5.1 Written Exam: Implement and Troubleshoot Loop Free Path Selection
I will be discussing Implement and Troubleshoot Loop Free Path Selection as part of Layer 3 Technologies and Fundamental Routing Concepts CCIE Routing and Switching (R&S) V5.1 exam blueprint topics.
Implement and Troubleshoot Loop Free Path Selection :
3.5 EIGRP [for IPv4 and IPv6]
3.5.c Implement and troubleshoot loop free path selection
3.5.c [i] RD, FD, FC, successor, feasible successor
3.5.c [ii] Classic metric
3.5.c [iii] Wide metric
Let me summarize some of the key takeaways related to CCIE R&S V5.1 Written Exam: Implement and Troubleshoot Static Routing as relevant to CCIE Routing and Switching (R&S) V5.1 written exam blueprint topics.
- Feasible distance (FD) is the best metric along a path to a destination network, including the metric to the neighbor advertising that path
- The feasibility condition (FC) is a sufficient condition for loop freedom in EIGRP-routed network
- EIGRP delay metric is propagated to all neighbors on a given segment as opposed to bandwidth metric
- EIGRP delay metric is calculated as a sum of all paths from source to destination whereas only the minimum bandwidth is considered. Any changes to bandwidth metric also affect QoS
I sincerely hope that you found this article and video helpful. Please post your questions or suggestions in the comments and tell me how you are preparing for your CCIE Routing and Switching (R&S) V5.1 written and lab exams.