Your browser failed to load CSS style sheets. Your browser or web proxy might not support elliptic-curve TLS

Building network automation solutions

6 week online course

Start now!
back to overview

Making the case for Layer 2 and Layer 3 VPNs

Occasionally someone would try to persuade me that the layer-2 VPN services are like aspirin (you know, totally harmless plus it could get rid of all your headaches). OK, that might be true if you take the layer-2 VPN offering as a pure transport solution and plug in an extra router (sometimes also called a layer-3 switch by marketing people) between the Service Provider's Ethernet (or whatever they give you) and your LAN. But there are people who don't know the details and plug the SP Ethernet straight into their L2 switch … and things might even work for a while … until the whole network collapses.

In my opinion, we need both L2 and L3 VPN services, but it's important that they are positioned and deployed correctly. You can read more about my views on this topic in the SearchTelecom article Making the case for Layer 2 and Layer 3 VPNs.

The list of all articles I wrote for SearchTelecom is available in the CT3 wiki.

No comments:

You don't have to log in to post a comment, but please do provide your real name/URL. Anonymous comments might get deleted.

Sidebar