Multicast is just Weird.... Doesn't even know who gets it?

Is this the strangest type of communication in networks or the Internet? The sender doesn't even know who is receiving the transmission. It could be a single device or thousands of devices. It just doesn't know - simply sends and forgets. The network needs to take care of things.

// David's SOCIAL //

// MY STUFF //

// SPONSORS //

// Menu //
00:00 - Intro
01:05 - Difference Between Multicast, Unicast & Broadcast
03:07 - Multicast
04:04 - Multicast Setup
04:47 - Address Classes
06:45 - Wireshark
10:23 - Multicasting and Broadcasting
14:27 - Demonstration using routers and switches
14:46 - IGMP Snooping
20:24 - How is the Typology Built? (PIM routing protocol)
30:50 - Conclusion
31:33 - Outro

// Detailed Timestamps //
00:00:00 - Introduction to Data Streaming to Multiple Devices
00:00:06 - Explanation of Multicasting
00:00:12 - Devices Used in the Demonstration
00:00:17 - Multicast Stream Setup and Demonstration
00:00:28 - Definition and Use of Multicasting in Networking
00:00:46 - Examples of Multicasting Applications
00:01:10 - Unicast vs. Multicast Communication
00:01:41 - Multicast Streaming Process
00:02:04 - Differences Between Unicast, Multicast, and Broadcast
00:02:59 - Use of Address Resolution Protocol (ARP) in Networking
00:03:10 - Using VLC for Multicast Streaming
00:03:39 - VLC Multicast Streaming Setup
00:04:25 - UDP Protocol in Multicasting
00:05:26 - IP Address Ranges in Multicasting
00:06:02 - Setting Up Multicast Address in VLC
00:06:54 - Network Traffic Analysis with Wireshark
00:07:41 - Understanding MAC Addresses in Multicasting
00:09:13 - Importance of the Multicast Vendor Code
00:10:28 - Advantages of Multicasting Over Broadcasting
00:11:35 - Router Configuration for Multicasting
00:12:56 - Explanation of IGMP Snooping in Switches
00:14:31 - Detailed Multicast Network Topology
00:15:59 - Demonstration of Multicast Routing and IGMP Snooping
00:18:55 - Advanced Networking Concepts in Multicasting
00:20:25 - Building Multicast Distribution Trees
00:22:28 - Enabling Multicast Routing in Routers
00:23:23 - PIM Protocol in Multicast Routing
00:24:09 - Dynamic Multicast Routing Demonstration
00:26:24 - IGMP Join Messages in Multicast Subscriptions
00:27:36 - Impact of IGMP Snooping on Network Traffic
00:29:04 - Practical Implementation of Multicasting
00:31:04 - Summary and Future Topics in Networking

vlc
stream
streaming
twitch
stream video
video streaming
ip
ipv4
ipv6
unicast
multicast
broadcast
igmp
igmp snooping

#wifi #networking #internet

[davidbombal]

Is this the strangest type of communication in networks or the Internet? The sender doesn't even know who is receiving the transmission. It could be a single device or thousands of devices. It just doesn't know - simply sends and forgets. The network needs to take care of things.

// David's SOCIAL //

// MY STUFF //

// SPONSORS //

// Menu //
00:00 - Intro
01:05 - Difference Between Multicast, Unicast & Broadcast
03:07 - Multicast
04:04 - Multicast Setup
04:47 - Address Classes
06:45 - Wireshark
10:23 - Multicasting and Broadcasting
14:27 - Demonstration 2
14:46 - IGMP Snooping
20:24 - How is the Typology Built?
30:50 - Conclusion
31:33 - Outro

// Detailed Timestamps //
00:00:00 - Introduction to Data Streaming to Multiple Devices
00:00:06 - Explanation of Multicasting
00:00:12 - Devices Used in the Demonstration
00:00:17 - Multicast Stream Setup and Demonstration
00:00:28 - Definition and Use of Multicasting in Networking
00:00:46 - Examples of Multicasting Applications
00:01:10 - Unicast vs. Multicast Communication
00:01:41 - Multicast Streaming Process
00:02:04 - Differences Between Unicast, Multicast, and Broadcast
00:02:59 - Use of Address Resolution Protocol (ARP) in Networking
00:03:10 - Using VLC for Multicast Streaming
00:03:39 - VLC Multicast Streaming Setup
00:04:25 - UDP Protocol in Multicasting
00:05:26 - IP Address Ranges in Multicasting
00:06:02 - Setting Up Multicast Address in VLC
00:06:54 - Network Traffic Analysis with Wireshark
00:07:41 - Understanding MAC Addresses in Multicasting
00:09:13 - Importance of the Multicast Vendor Code
00:10:28 - Advantages of Multicasting Over Broadcasting
00:11:35 - Router Configuration for Multicasting
00:12:56 - Explanation of IGMP Snooping in Switches
00:14:31 - Detailed Multicast Network Topology
00:15:59 - Demonstration of Multicast Routing and IGMP Snooping
00:18:55 - Advanced Networking Concepts in Multicasting
00:20:25 - Building Multicast Distribution Trees
00:22:28 - Enabling Multicast Routing in Routers
00:23:23 - PIM Protocol in Multicast Routing
00:24:09 - Dynamic Multicast Routing Demonstration
00:26:24 - IGMP Join Messages in Multicast Subscriptions
00:27:36 - Impact of IGMP Snooping on Network Traffic
00:29:04 - Practical Implementation of Multicasting
00:31:04 - Summary and Future Topics in Networking


vlc
ip
ipv4
ipv6
unicast
multicast
broadcast
igmp
igmp snooping

[ChrisGreer]

6:50 Yay Wireshark!! Nice job David! Great demo of how multicast works and how it looks at the protocol level. 👏👏

[ebpsalm]

This is just sweet. So practical I love it. I recently got my CCNA and my friends were sure it's a waste of time because I was always playing in packet tracer but with this, I can flex a little even to non technical people. Thanks a lot David, I would like to watch more content where we apply networking to basic home devices and everyday used apps.

[romuloromero]

This recording was very educational and informative. I would be interested in seeing more contents like these such as protocols and networking subject in general. I enjoy very much watching your videos, thank you for sharing.

[SuperChoongus]

I have a bachelors in network engineering and my CCNA from '21, but have never gotten a good grasp on multicast. Although I knew mcast had its own dedicated IP class (range) I didn't really understand why or even realize that it was outside if any RFC 1918 addresses, so obviously hadn't fully considered all the applications of the technology. The single LAN implementation with different devices with a free app and packet caps was a fantastic introduction and really appreciate all the supplemental info!

[ray]

Multicast was awesome back in the Norton Ghost / FOG Project days, being able to reimage an entire lab of computers all at the exact same time, all initiated from your desk, all getting the exact same stream of data from the server.

All finishing at pretty much the exact same time.

And then along comes MDT and SCCM with its thin images utilising a WIM file, and, well, unicast is the most common deployment method for those.

[KrishanuKonar]

One of the best videos on multicast. Very clear explaination on the theory and the actual implementation of multicast.
Subbed!

[SipherJD]

Great video! Appreciated the overview of PIM without getting too in the depths of the different modes. I would be interested on a BGP focused video, not sure if you've covered it in the past so my apologizes but given its importance to the internet it seems like a prime topic. Wasn't that huge "face-book" outage a while back caused by erroneous BGP updates? It would be neat to explore the types of vulnerabilities (and benefits) of BGP. Thanks again David, love the videos.

[scottspa]

This was fantastic! I'd LOVE to see more like this (deep). Im currently studying for my CCNA (again), using your udemy course (and Jeremy's, and Neal's, and a few others), and ive never really seen multicast discussed in much depth at all. 👍🤘.

[Abduselam.m]

Best channel that helps others how to success their education and work world

[buzooliibrahim]

I'm working in a cable Tv company we r internally using this technology. Such a wonderful explanation and thx David for it. Waiting for deep dive in this tech thx.

[Andreterragt]

This is incredibly useful!! I miss a CCNP course of yours!! That would be great! Thanks for amazing content!

[roaridse]

One thing you didn't mention; multicast on wireless have some issues as it has to be sent on a lower bitrate. Some access point deal with this by converting multicast to unicast packages, but not all . Multicast on wireless may also reduce battery life on batterypowered devices...

[TheBnary]

Routing protocol deep dives would be amazing!

[briancotten]

Loved this….i would be hard pressed to turn right around and relay this info to somebody else, but i understand the concept on this. GO DEEPER…MORE VIDEOS!! Lol. Videos like this are a great springboard for helping people understand things conceptually, but also gives them ideas on what other things they need study better in order to fully and deeply understand the concepts used. I hope that makes sense. Basically in this video i learned some new concepts and now know what specific things i need to further study in order to better solidify those concepts in my brain. Videos like this are a great resource! Even if I don’t 100% get everything, I get enough to know where i need to study more. Thanks!

[jonathantx]

Very interesting and exiting topic. This helps me understand multicasting more. Yes please create some more networking videos. Cyber security is great by without learning networking is like trying to run before you learn how to walk. Again awesome content.

[JaykPuten]

Interpretive dance is the strangest communication
But.. via a computer.. fair point

[harshvermacIT]

Thankyou very much sir, We'd be glad if you continue these form of video and tell us more deeply about more strange things of networking.

[caiomotta]

A deep dive into MPLS would be exceptionally interesting! I am reviewing some of your older videos on it now.

[JonLondrezos]

Some high-performance business apps use middleware, which in turn uses multicast for data transfers. How easy is it to a) intercept and capture messages, but more importantly b) inject "bad" multicast messages to corrupt data flows?