Redistribution Loop Prevention: Route Tags, AD, and Filtering
Two-point redistribution is where redistribution stops being a config exercise and starts being a design problem. The moment two
8 min read
IP Routing
12 posts
Route Redistribution on Cisco IOS XE: The Complete Multi-Protocol Guide
Most networks do not run one routing protocol. Mergers bolt an EIGRP shop onto an OSPF backbone, a campus hands
10 min read
Static Routing on Cisco IOS XE: Default, Floating, and Host Routes
Static routing is the first routing you ever configure and the last routing you stop using. Dynamic protocols get the
7 min read
Longest Prefix Match: How Routers Actually Choose Routes
Ask a room of engineers "which route wins?" and most reach straight for administrative distance. That is the
6 min read
Administrative Distance: The Complete Table and Why It Matters
When a router learns the same destination from two different routing protocols, it cannot install both. It has to pick
6 min read
How to Read the Cisco Routing Table (show ip route Line by Line)
The routing table is the single most important piece of state on a Cisco router, and show ip route is
8 min read