CCNA R&S version 3 Topic: Collapsed Core vs. Three-Tier Architectures

[@hatemnegm2688]

The best Cisco Instructor ever, Thanks a lot for the amazing video

[@MrEnterainment]

Kevin, you're great at teaching. At the moment, I'm doing the course that you're teaching on Alphaprep, amd it's extremely helpful for me. I've been trying to find a good quality CCNA R&S 200 - 125 course for about 4 months now, I've only recently found the course on Alphaprep :) Your videos help me a ton!

[@MrEnterainment]

Kevin Wallace, you're very welcome 🙂 You're a great teacher!

[@mariomatejka]

Kevin, it would be nice if you could give a couple of examples of an actual Cisco switch used at each layer.

[@faydahyahya]

I must say that I appreciate these videos look foward to writing the exam in May...i need guide

[@RezhwScene]

Thank you so much for your effort Sir! Very easy to understand. You are awesome!

[@Telecomm2004]

Wonderful as usual

[@DamianXvolt]

Watching this video makes sense, however if you read the book 100-105 from Wendell on page 230-231 it clearly says a collapsed core does not have a core and this video shows that the perspective is that the distribution layer is removed..that's what got me thinking Kevin.

[@ejeangilles]

Kevin - For your 3 Tiered design is it not best practice to connect your distribution switches together?

[@ejeangilles]

Thanks. I'm building a classic 3 tier network with Nexus's at the core and distritbution layer. I'm wondering if I should I build a VPC between the Core and distribution or just layer 3 links. I know I want my distribution layer in a VPC I'm just not sure how it's supposed to look from the distribution switches to the core. Any general ideas or suggestions. :)

[@AldmarSousa]

Kevin, Are you hooking up the switches in core layer in layer 2(EtherChannel) or Layer3(Routing)?

[@AldmarSousa]

Thanks so much for replying me, Kevin. So, Each Switch in core layer has 3 different networks configured in it. Am I correct?

[@ashk44y]

An excellent to the point explan.

[@QikiIzdihar]

Can the core layer only use one core sir?

[@hasanghassan4308]

I am very interested in your last or old CCNA 200-120 video series, but i am sorry that i didnt catch the whole series because it was deleted. How can i obtain the old or the new video series of yours. Thanks Mr. Wallace with regards

[@georgeslombat9030]

Hasan Ghassan just type kwtrain.com and you could pay for any type of videos series you are looking for.

[@cjtrink]

So how are you running VPC from the access layer to the distro layer if you dont have a connection between distro switches in the collapsed core network topology? or is there another way to dual home the access layer not using VPC?

[@cjtrink]

Ok perfect, thanks for the clarification.

[@sladdha12]

could you just explain the real life scenario, why aggravator switch is used?

[@awalker7500]

thank you for this but there in not much info on the collapsed core , is there any other videos that explain abit more or is that all we should know

[@slambump1978]

from what I understand with the collapsed core it is worth nothing that the Access layer takes up more Layer 3 responsiblities. Since the Core layer is designed to be as fast as possible, it is not advisable to perform packet manipulation as you would in the distribution. So for Access layer in collapsed core think more Layer 3 switching