# Lab: Configure IS-IS on Point-to-Point Links

DevFeed: [Lab: Configure IS-IS on Point-to-Point Links](<https://devfeed.tech/articles/lab-configure-is-is-on-point-to-point-links-11084.md>)

Original publisher: [Read original article](<https://blog.ipspace.net/2024/10/isis-point-to-point-links/>)

Published: 2024-10-22T06:24:00Z

Content type: tutorial

Language: en

Sources: [ipSpace.net blog](<https://devfeed.tech/sources/ipspace-net-blog.md>)

Topics: [IS-IS](<https://devfeed.tech/topics/is-is.md>), [networking](<https://devfeed.tech/topics/networking.md>), [Handshake](<https://devfeed.tech/topics/handshake.md>), [Ethernet](<https://devfeed.tech/topics/ethernet.md>)

Tags: [ethernet](<https://devfeed.tech/tags/ethernet.md>), [is-is](<https://devfeed.tech/tags/is-is.md>), [netlab](<https://devfeed.tech/tags/netlab.md>), [networking](<https://devfeed.tech/tags/networking.md>), [ospf](<https://devfeed.tech/tags/ospf.md>)

## AI overview

A lab exercise on configuring IS-IS for point-to-point links in Ethernet networks. It compares IS-IS with OSPF, explains the differences between point-to-point and multi-access links, and introduces the three-way handshake.

## Source excerpt

From a very high-level perspective, OSPF and IS-IS are quite similar. Both were created in the Stone Age of networking, and both differentiate between multi-access LAN segments and point-to-point serial interfaces. Unfortunately, that approach no longer works in the Ethernet Everywhere world where most of the point-to-point links look like LAN segments, so we always have to change the default settings to make an IGP work better. That's what you'll do in today's lab exercise, which also explains the behind-the-scenes differences between point-to-point and multi-access links and the intricate world of three-way handshake. Read more ...