MPLS has been the butt of many jokes at Packet Pushers. Most engineers agree that MPLS is far from perfect, but it’s the best that we have.
Which is pretty sad considering how far we’ve come over the last twenty years in almost every aspect of computing.
But networking? Here, a technology that’s decades old just means it’s “proven” and “everyone understands it” and “we can’t change it now, it runs the Internet.”
Which begs the question, how did we get here? What’s the history behind MPLS, and why is it the way it is?
Today Greg Ferro and Ethan Banks sit down with some of the people who were there at the creation of MPLS.
Our guests are Tom Nadeau, an independent consultant on SDN, NFV and open source software; Dan Tappan, a form distinguished engineer at Cisco; and George Swallow, also a former distinguished engineer at Cisco and chair of the MPLS Working Group at the IETF.
We explore why MPLS and tag switching gained momentum, examine the concept of and drivers for traffic engineering, why the industry got behind Label Distribution Protocol (LDP), the rise of segment routing, and the current state of MPLS.
And for more on MPLS, check out the Packet Pushers’ Show 102 – A Layer of Indirection: Is MPLS Tunneling?