O'Reilly logo

IS-IS Network Design Solutions by Scott Sturgess, Abe Martey

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter Summary

The IS-IS routing protocol is one of three network layer protocols specified by ISO to support the CLNS. The others are CLNP and ES-IS. Even though IS-IS was designed for routing ISO CLNP packets, it has been adapted for use in IP environments as Integrated IS-IS.

Integrated IS-IS has evolved over the years into a scalable, robust, and easy-to-use Interior Gateway Routing Protocol (IGP) that can operate in dual mode to support overlayed IP and ISO CLNS networks. However, IS-IS has probably gained more popularity on the Internet, where its primary application is for intradomain IP routing. As an IGP in an Internet routing domain or autonomous system, Integrated IS-IS plays a critical supportive role for the Border Gateway Protocol ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required