What Problems Does Multicast Solve?

Поділитися
Вставка
  • Опубліковано 4 гру 2024
  • Start learning cybersecurity with CBT Nuggets. courses.cbt.gg...
    In this video, Knox Hutchinson covers the point of multicast. Multicast differs from unicast in important ways, but maybe the most important thing to ask is what problems multicast even solves. If you design networks, you'll need to design them with multicast in mind - but that can take up resources and time - so why bother?
    Understanding multicasting requires a solid understanding of unicast. A unicast route is defined by one IP address (or node) communicating to another direct IP address (or node). To do that, a device forms a unicast packet that gets routed throughout the network until it reaches its direct endpoint.
    A broadcast is typically used on ethernet segments. Generally speaking, if a device sends a broadcast to its local switch, unless that switch is trunked upward, the broadcasts would be sent out all the other ports on the same VLAN. The point of the broadcast is that it's a one-to-many, but it's contained within its Layer 2 segment.
    But if you're trying to set up streaming data - like a video call - to multiple resources throughout the entire enterprise, multicast is how to accomplish it. Multicast is 1:many, and not restricted to VLAN - it's broadcast throughout the entire enterprise to any devices who want to hear it.
    There are many different approaches and design techniques to implementing multicast, but fundamentally it's about making it possible for a 1:many relationship across an enterprise, in spite of VLANs and other obstacles.
    🌐 Download the Free Ultimate Networking Cert Guide: blog.cbt.gg/abcy
    ⬇️ 13-Week Study Plan: CCNA (200-301): blog.cbt.gg/liyf
    Start learning with CBT Nuggets:
    • Real-World VLAN Design and Implementation | courses.cbt.gg...
    • Intro to Networking | courses.cbt.gg...

КОМЕНТАРІ • 8

  • @MarkMarquez
    @MarkMarquez 3 роки тому +6

    Thank you for this CBT Nugget, very informative.

    • @cbtnuggets
      @cbtnuggets  3 роки тому

      We're glad you enjoyed it, Mark!

  • @scorpio_1312
    @scorpio_1312 3 роки тому +2

    Thanks for sharing! I have a question though. If I am in my enterprise network doing a video conference using Webex or Teams, I'm l using multicast? Or multicast use case is only like when I have a DVR and I want to broadcast that content to clients on my network. Thanks in advance!

    • @cbtnuggets
      @cbtnuggets  3 роки тому +3

      Hi Carlos, thanks for your question! Each vendor will have their own direct answers, but from what we were able to find on Microsoft’s Tech Blog, Teams uses Unicast streams for live event playback: techcommunity.microsoft.com/t5/microsoft-teams-blog/live-events-now-generally-available-in-microsoft-teams/ba-p/386460

  • @danepane527
    @danepane527 3 роки тому

    What's more interesting than the video is the comments.. didn't know you could embed external urls.. nice

  • @germancalderon1672
    @germancalderon1672 2 роки тому

    thank you!!

  • @charliecharliecharliecharl8554
    @charliecharliecharliecharl8554 2 роки тому

    Is multicast just for sharing ,fe80 ipv6

  • @adamsteele6148
    @adamsteele6148 3 роки тому

    multicast ugh