Case Study: What's the Best Route?
Floating static routes have been discussed quite a bit in this chapter, so it might help to understand how they work. The key to understanding floating static routes is in understanding how a Cisco router chooses which route to place in its forwarding table (which route to use). If a Cisco router has the following five paths available to 10.1.1.1, which would it use:
10.1.1.0/24, metric 44560, EIGRP, administrative distance 90
10.1.1.0/24, metric 56540, EIGRP, administrative distance 90
10.1.1.0/24, metric 2, RIP, administrative distance 120
10.0.0.0/8, metric 12500, EIGRP, administrative distance 90
10.0.0.0/8, metric 1, static, administrative distance 200
A router first looks at the prefix length of the paths ...
Get Advanced IP Network Design (CCIE Professional Development) now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
