MicroNugget: What is TRILL?

In this video, Anthony Sequeira covers TRILL. Back when building large Layer 2 networks seemed like the best way to scale up to hundreds of nodes, STP's original developer created TRILL to make use of IS-IS and ECMP. Watch to learn about TRILL's history and the routing technology it uses.

Through the leveraging of ECMP and IS-IS, Radia Perlman proposed TRILL as an alternative to the complexity of spanning tree technologies like STP, RSTP and MSTP. For its part, STP enabled redundant paths in the Layer 2 Domain by dynamically blocking particular links so there wouldn't be any loops in the topology. But that had a drawback: some links end up getting rendered useless when STP blocks them in particular topologies — even if we're paying for those links in bandwidth. TRILL was introduced as a replacement to STP and was based on the idea of scaling upward by way of Layer 2. By drawing from Layer 2 routing intelligences like IS-IS and ECMP, TRILL worked to accommodate tremendous numbers of nodes with lots of redundant connectivity.

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[rohanquierohero]

I read TRILL an year and half so and from that time, I had an idea of it but I thanks to u for refreshing it. Crisp and clear.

[edwardyeryfernandez]

Excelente Anthony, blessing and thanks to everyone at CBT. I am an IT professor and I am more than please to see the quality of your pedagogy and team work. Keep it up.

[theghost]

Excellent. I learn something new. I recently received my CCNA and I spent a lot of time understanding RSTP. Thank you CBT.

[cbtnuggets]

Thank you for your feedback. We will forward your comments on to the appropriate party.

[cbtnuggets]

Anthony is now a CBT Nuggets trainer and we are excited to have him on Team CBT!

[Kopiteization]

Excellent! Just what I was looking for! Should learn a lot more to really appreciate the importance of TRILL.

[cbtnuggets]

Edward, thanks for the feedback! How long have you been an IT professor?

[antoniobosco]

Excellent, very nice technology! Amazing Micronugget!

[cbtnuggets]

First off, Congratulations on receiving your CCNA Christian! #conquer Also, we appreciate the feedback on this MicroNugget. What do you plan on training for next?

[cbtnuggets]

Wow! Thats a long time. What is your favorite subject to teach?

[MrJhisson]

I thought Antony worked at SWL was there a resume generating event or something?

[mightystef]

Awesome explanation regarding TRILL!

However, I have to understand why, in 2017, it still pertinent to make an L2 network architecture that uses an IGP to eliminate loops and broadcast (like TRILL) instead of directly making a routed architecture using an IGP !?!

If you have an answer for me Anthony, it will be very appreciated 😉 Thanks!

[eleftheriosiliopoulos]

Anthony Sequeira, based on your experience, can ccna dc be combined with any microsoft certification path? thank you in advance. I wish a happy new year.

[MasterRyu]

Lecture note: Anywhere he says routing, replace it with the word switching instead.

[RohitRaj-ywzm]

Can you try and replace this video with a less happier version ... i mean he sounds tooo happy ... through the whole video ... he doing a good job in teaching though .. would love to get another video from the person .. just a bit normal in tone .. just like the above comment says .. thanks

[cptroger]

Trill are depicted as comprising a humanoid host, and a worm-shaped symbiont that is implanted in the host's abdomen. Their personalities are a combination of the host and symbiont, with the symbiont's memories providing continuity between hosts. Their home world, also named Trill, is a planet in the Alpha Quadrant, the primary setting of most of the Star Trek series.

[LFR]

Radia actually didn't plan for STP to live long it was a hack.

[kracksmithejm]

so has Radia sued other vendors for copyrights?

[sap]

B''H, in King Lord Master Friend and my Father Yeshua Hamasiach, Name, Amen.

[fahimsayyed]

is SDN is goning to take our jobs away