CCNA multicast quiz question: How will multicast traffic flow in the network? CCNA | CCNP

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  • Опубліковано 10 гру 2024

КОМЕНТАРІ • 29

  • @davidbombal
    @davidbombal  5 років тому +2

    Menu:
    Question overview: 0:09
    GNS3 Topology overview 1:46
    Why routers as PCs: 2:20
    Disable IGMP on switch: 2:49
    Demo of multicast subscription: 3:36
    Answer to question using Wireshark: 6:57
    Who will reply to Multicast (igmp join): 10:58
    IGMP snooping: 14:52
    Cisco Multicast troubleshooting: 16:47:
    Cisco document: Multicast Does Not Work in the Same VLAN in Catalyst Switches
    bit.ly/2T4dyPj
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  • @alphazulu7488
    @alphazulu7488 14 днів тому

    Go Deep , Go deep deep David.. excellent Multicast practical demo. Than You for your hard work for easy going beings like us.

  • @Authentic_Confidence
    @Authentic_Confidence 4 роки тому

    This video was fantastic! please keep creating more videos demonstrating multicast across the network, we need more of this subject fully explained in networking

  • @vmanyu86
    @vmanyu86 5 років тому

    Packet goes to PC4 after enabling IGMP is most likely because if you see at 15:47, multicast router learning mode is set to pim-dvmrp which is dense mode and works by flooding packets from source to all possible destn and then building a tree based on membership by pruning branches. If you intend to see working as you said, routing protocol should be sparse mode like PIM-SM.

  • @naingaung7827
    @naingaung7827 5 років тому +1

    very informative your explanation. Thanks, Mr.David.

  • @shakirbukhari
    @shakirbukhari 5 років тому

    very nice. learned more about multicast and how to join them. thanks

  • @G0nz0uk
    @G0nz0uk 5 років тому

    Great work David, loving your GNS3 videos I bought on Udemy, CCNP expires soon so need to run through my labs.

  • @Peterstevoli
    @Peterstevoli 5 років тому

    Great video. Thank you David. Have a blessed day.

  • @mohammadhesni139
    @mohammadhesni139 5 років тому

    Dear David, Thanks so Much it's awesome Like always

  • @briangallaghgmailcom
    @briangallaghgmailcom 5 років тому

    Nice explanation David 👍

  • @branmeize
    @branmeize 5 років тому

    Grateful for the explanation.

  • @silviomhula5837
    @silviomhula5837 5 років тому

    Always making it simple

  • @rkmallesh5
    @rkmallesh5 5 років тому

    Thanks Allot sir 👍

  • @mathqesystem
    @mathqesystem 5 років тому

    great video!

  • @ajuamungumichael4377
    @ajuamungumichael4377 5 років тому

    thank you

  • @john_doe6731
    @john_doe6731 5 років тому

    Hey greate vidoes you pump out for our cheap asses viewing pleassure. A quick question, does the new changes to the CCNA with python and what not make the 2016 revision of 200-125 pointless in picking up ? Looking at getting my CCNA done this time arround. And the Cisco CCNA Cyber Ops seems pretty familiar as the comptia Sec+ and Cysa, any point in taking them for some one how allready got the sec+ ? Currently working on imporving my "position" within the security field, so just want to start getting my certifications to have something to show for my effort :)

  • @allenxd
    @allenxd 5 років тому

    Hi David! This one really helped me as I have been working in an AV company which uses multicast alot! Can you do PIM too? again thank you very much!

  • @nishigrandhi3653
    @nishigrandhi3653 5 років тому

    Hi David excellent tutorial I have one question though how does the switch know about the Mac address of the multicast ip address?

    • @davidbombal
      @davidbombal  5 років тому

      The PC converts the IP address to a specific MAC address (based on the multicast address used). A Layer 2 switch will flood multicast frames. A switch using IGMP snooping will "snoop" or listen in on the IGMP messages sent by subscribers to know where to forward traffic.

    • @Douglas_Gillette
      @Douglas_Gillette 2 роки тому

      The pc encapsulates the ip packet with a specific mac frame.***

    • @Douglas_Gillette
      @Douglas_Gillette 2 роки тому

      The term convert sound like something NAT translation would do and is not the most appropriate term.

  • @elchinefa9524
    @elchinefa9524 5 років тому

    Excellent tutorial. Thanks for that. Really appreciate it. By the way, I did research about "how to assign multicast ip in windows?" and as I understood if we want to have unicast Ip address and multicast ip address in the same device then we need two NIC. Is it true???

    • @davidbombal
      @davidbombal  5 років тому +2

      No. Only a single NIC is required to receive unicast, multicast and broadcast frames.

    • @elikelik3574
      @elikelik3574 5 років тому

      @@davidbombalI guess we do assign second IP address(in this case multicast ip) from advanced settings. Should try it.Thanks for the reply.

    • @davidbombal
      @davidbombal  5 років тому +1

      You don't have to assign multicast addresses to PCs. Applications like VLC are used and the NIC on the PC will start receiving multicast frames automatically.

    • @elikelik3574
      @elikelik3574 5 років тому

      @@davidbombal I see. So APPs do it themselves if they need it. I just for testing purposes wanted try to give multicast ip to some PCs in PacketTracer and see what happens. Thanks for explanation. Appreciate it.

  • @qaisalbaghdady1243
    @qaisalbaghdady1243 5 років тому

    Like 👍 Like 👍🏽 Like 👍🏾

  • @Bshawara
    @Bshawara 2 роки тому

    help me please