MPLS - Understanding the Label Distribution Protocol (LDP)

MPLS uses labels as its method of directing data between nodes. The protocol responsible for allowing MPLS nodes to learn about each others' labels is the Label Distribution Protocol or LDP. In this video, I'll be showing you how LDP works, how it advertises labels between nodes. We'll also take a look at the internal constructs in the control and forwarding planes within each MPLS router that make the direction of data between nodes possible.

These include the following constructs:
* Routing Information Base (RIB)
* Forwarding Information Base (FIB)
* Label Information Base (LIB)
* Label Forwarding Information Base (LFIB)

In this video series on MPLS, you’ll learn where MPLS fits within the broader networking landscape, the problems it was designed to solve, and the key benefits it offers, such as improved traffic management, scalability, and support for multiple services.

Chapter list:
============================================
00:00 Introduction
00:43 MPLS Infrastructure
02:15 LDP Adjacencies
03:12 Examining Normal Routing Constructs
06:33 Examining the LFIB
09:07 Summary

[rexwondo]

What a stunning video, PE & CE, finally someone explaining with real world scenario

[rigelmandarakuriom]

Simply the best presentation. Lazarus’ level of articulation and understanding of the core principles and functionalities of routers and protocols are second to none. Thanks for always sharing your knowledge on the subject !

[JF-zsjm]

Thanks Lazarus for this wonderful expplanation

[daoudgaming]

that was very very helpful, thank you so much

[laithshamlawi]

Hello, subscribed and thanks for the video. A small question here is how is the (best) next hop determined? is it based on the IGP protocol that is running underneath MPLS?
a second question is if LDP sends label updates as soon as you configure the neighborship? or does it do that only when it's the best path?