Tag Archives: CLNS

IS-IS vs. OSPF Part II:  Small steps make steady progress

IS-IS Subnetwork Independent Operation

Continuing our journey through the land of IS-IS and hoping to reach the point where we get to understand how it actually works and the differences between it and OSPF, let’s focus today on how IS-IS is configured and why it uses both Levels and Areas.

Continue reading IS-IS vs. OSPF Part II:  Small steps make steady progress

Rating

IS-IS vs. OSPF Part I: First steps in understanding IS-IS

The theme question is actually quite a good one, because it may seem like the fight has already been won by IS-IS in the Service Provider segment, and by OSPF on the enterprise market. So why ask it then? Well, because I got the following answer one too many times: “IS-IS is awesome, OSPF not so much. I have no idea how IS-IS works but it’s great. OSPF is so complicated and offers so little flexibility…”.

Continue reading IS-IS vs. OSPF Part I: First steps in understanding IS-IS

Rating