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I've created a video that I would like to share here. In the past I've wondered how we keep routes separate across several routers, considering that VRF's are local to each router.

The answer is with a combination of Route-Targets, Route-Distinguishers, and MP-BGP. I've put what I learned about this into this video. It also has a little MPLS.

I hope it's useful to you too.

https://youtu.be/dW8JjcINgDg

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2 points · 4 days ago

Awesome video. Thanks for making this. I'm going to save this to share with some colleagues to help explain MPLS/VRF. They way you explain that using MPBGP to distribute the routes is a completely separate thing from the actual forwarding of customer traffic across the core I think is very insightful and helps clear up some "mud"

Thanks again!

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Original Poster2 points · 3 days ago

Thanks for the feedback, and I'm glad to have cleared up the mud a bit.

I also found this to be a tricky point early on, and this is how I eventually came to understand it. It's good to hear that it works for you too.

Just watched this yesterday. Super helpful and informative!

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Original Poster2 points · 3 days ago

It's good to hear that it's working for you :)

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Recently I've created some videos on VRF's. Here's the next part, which uses route-targets and route-distinguishers to extend VRF functionality across routers.

This also covers MP-BGP, and touches on MPLS.

https://youtu.be/dW8JjcINgDg

7

I've written an article on Traffic Domains in NetScalers, and how to configure them.

If you're interested, have a look here:
https://networkdirection.net/NetScaler+Traffic+Domains

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107

Are you new to networking? Or do you need to brush up for the exam?

Either way, I think I can help! I recently wrote this article on the OSI Model. I hope it's useful to you

https://networkdirection.net/OSI+Model

107

So many ads =/

Hard to read on mobile without ad-block.

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Original Poster5 points · 10 days ago

Thanks for bringing this to my attention in a courteous manner.

I don't normally see the mobile version, so I didn't realise it was so bad.

I will look at tuning this so it's not so bad. I need to find a balance where there are some 'reasonable' ads which can support the cost of the website, without getting this annoying.

I'll see what I can do about this.

Thank you!

It looks bearable on a PC browser (with ad block). On mobile it was difficult to stay with it... The ads made it look gimmicky.

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Original Poster2 points · 10 days ago

Thanks again. I've just made some settings. Not sure if that will fix it.

It's hard to get the right balance on mobile.

Thanks for bearing with me

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18

A few weeks ago I shared a video I made on how VRF's work. Now, I'd like to share a follow up video on how to use OSPF, EIGRP, and BGP with VRF's.

This uses a lab environment, so you can follow on yourself if you want.

https://youtu.be/7RtoNTK-mgE

I hope you like it!

Original post:

http://goedhartvoordieren.nl/?page=r/ccnp/comments/8k8qhr/introduction_to_vrfs_with_vrflite/

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2 points · 18 days ago

really cool!

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Original Poster2 points · 17 days ago

That's good to hear!

Original Poster2 points · 17 days ago

Thank you

Wondering about integrating dynamic routing with VRF's?

In this video, we configure OSPF, EIGRP, and BGP in a VRF environment.

https://youtu.be/7RtoNTK-mgE

Downloadable configs if you want to lab it yourself.

8

A few weeks ago I shared a video I made on how VRF's work. Now, I'd like to share a follow up video on how to use OSPF, EIGRP, and BGP with VRF's.

This uses a lab environment, so you can follow on yourself if you want.

https://youtu.be/7RtoNTK-mgE

I hope you like it!

Original post:

http://goedhartvoordieren.nl/?page=r/Cisco/comments/8k8rt4/want_to_learn_vrfs/

8
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I recently uploaded Introduction to VRF's.

It's the first video in a four-part series. This part explains what VRF's are, why we use them, and how to configure them.

Includes two downloadable labs

great job! subscribed

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Thanks!

76

I have created a video on how VRF's work, which I'd like to share here.

I hope you find it useful, or at least interesting.

It covers what they are, why we use them, and includes a lab (with downloadable config) if you want to try on your own.

https://youtu.be/D0IT6ZKY3tg

This whole thing seems like an ad for some reason. The short, praising comments that offer no detail or critique, a group of upvotes but little comments, a small amount of views on the video itself; it really seems like some advertising.

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"Great post. Very informative and really made me think." /s

It's probably not an ad, but more likely the OP with multiple accounts praising himself to boost the perception/karma of the post/video.

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Original Poster2 points · 1 month ago

Nope. Only one account. Just trying hard to make good content

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25

Hi all,

I've recently put this video together explaining what VRF's do and why we use them.

I've also included some lab files and config if you want to practice on your own.

I hope you find this useful.

https://youtu.be/D0IT6ZKY3tg

Great video! I wasn't wanting to learn about VRF's today, but hell that was broken down simple enough to take a quick peak and come away with a solid chunk of knowledge. Also made my mind go on and question how to do different things with it and how'd they work. Love it when a learning video makes me question things instead of spoon feeding it. Cheers mate!

edit: PS what software are you using for the animations/video creation? I've always wanted to start a blog to help cement my learning, but creating videos would help my other passion of learning video editing!

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Original Poster1 point · 1 month ago

That's what I want to hear! Creating the videos is a learning experience in itself.

I use a combination of a few things. Simple diagrams and animations are just Visio and Powerpoint. More complicated editing is in Fusion. Audio editing is in Audacity. Then I use Shotcut for timeline editing.

So I have audacity experience and have definitely used Visio and PP so I’m pretty much there!

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Original Poster1 point · 1 month ago

Let me know when you've created a video... I'd like to see how you go

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15

I have created a video on how VRF's work, which I'd like to share here.

It covers what they are, why we use them, and includes a lab (with downloadable config) if you want to try on your own.

I hope you like it

https://youtu.be/D0IT6ZKY3tg

15
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1

Hi,

I'm trying to use the CSR1000v in Azure. It would take forever to explain all the details, but here's the summary:

I have a few virtual networks. One of these has the CSR1000v, which connects to an on-premises site with DMVPN.

I would like other virtual networks to use this connection too. Ideally I would like an interface per virtual network, so I can set different VRF's and route-targets.

Is this possible? Or do I need to find another way to do this?

Thanks

I think the generally accepted approach here is to set up VNet to VNet VPNs. You may be able to terminate these at the CSR100v. Doesn't look like your router is explicitly supported, but as far as I can tell it's pretty standard IPSEC at the end of the day.

Some docs: https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-howto-vnet-vnet-portal-classic

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Original Poster1 point · 1 month ago

What I've managed so far is a peering between VNets within a subscription, which is working well so far. My account doesn't have enough permissions yet to try this between subs. Hopefully I'll get that sorted out soon.

Where is /u/mark_3094 when you need him!

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Looks like I'm late to the party :)

15

I've created a video called 'Connecting Devices and Addresses'

It covers the basics of:

Copper/fibre cabling and wireless Copper cable types (crossover/straight through) Connectors Fibre cable types (SM and MM) The Ethernet protocol Basic LAN addressing

It's suitable for anyone starting their network journey. I hope you enjoy it!

https://youtu.be/Ud8UeNgdaz4

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[deleted]
2 points · 1 month ago

That was a great video! I’m about to take my CCENT & this was a great refresher. I’d recommend anyone that is about to take their ICND1 to give this video a view!

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Original Poster2 points · 1 month ago

Thanks for the endorsement :)

You should quit networking and work for Audible narrating books you beautiful sounding bastard!

Nice video.

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Original Poster3 points · 1 month ago

Hahaha! I think that's a compliment? Yeah, I'll take it as a compliment

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If you or someone you know is new to networking, check out this video:

https://youtu.be/Ud8UeNgdaz4

Introduction to Networking Part 2 (Cables and Addressing)

It might depend on vendor. To my knowledge, and leaf switch that connects external services to the fabric is a border leaf. Doesn't have to be dedicated.

The complication is in how you import your external routes, and how you export routes out of the fabric.

I created a video on spine/leaf, which may be of assistance. Sounds like you already know a fair bit about it, so it may not tell you anything new. https://youtu.be/x1F-RCW9fqo

Hi Luke Any video on DCI with VxLAN or EVPN-VxLAN?

Thanks

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I haven't made any on DCI. That might get vendor specific too.

If you're using Cisco, have a look at the Cisco Live on demand videos. I was present for one in Melbourne (2018), which covers this. The speaker was Lukas Krattinger. That might cover what you need

98

If you're new to networking, or just getting started with certification, here's a video that may help.

I created this video with the intent of helping anyone who is completely new.

I will eventually follow up with part 2, which will cover cabling and addressing.

I hope you like it!

https://youtu.be/cNwEVYkx2Kk

98

Awesome! Can’t wait for part 2!

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Original Poster5 points · 2 months ago

Thanks! Glad you like it! Part 2 coming in two weeks.

I'm already planning a part 3, depending on how successful parts 1 and 2 are

Thanks!

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Original Poster3 points · 2 months ago

You're welcome!

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Know anyone new to networking? I created this video as a starting point.

https://youtu.be/cNwEVYkx2Kk

163

Found this by mistake earlier. Really interesting. It's HE's 3D map of global connections.

http://he.net/3d-map/

163
14 points · 2 months ago

I feel ashamed that I've never heard of these guys before, am I the only one?

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Original Poster3 points · 2 months ago

I'd only vaguely heard of them. I guess it depends on how big they are locally in your area. Not so big here in Aus. At least not customer facing anyway

Blue. Definitely

Back-to-back vPC is what you're after.

u/mark_3094
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