CCNA multicast quiz question: How will multicast traffic flow in the network? CCNA | CCNP
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- Опубликовано: 28 авг 2024
- Can you answer this CCNA quiz question? What will happen to the multicast frames in this network? This is one of my daily quiz question scenarios. In this video, I give you the answer and explain the solution.
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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
#CCNA #GNS3 #Multicast
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
Follow me on Twitter or LinkedIn if you want to receive daily quiz questions:
Twitter: twitter.com/davidbombal
LinkedIn: www.linkedin.com/in/davidbombal/
This video was fantastic! please keep creating more videos demonstrating multicast across the network, we need more of this subject fully explained in networking
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.
very informative your explanation. Thanks, Mr.David.
very nice. learned more about multicast and how to join them. thanks
Great video. Thank you David. Have a blessed day.
Great work David, loving your GNS3 videos I bought on Udemy, CCNP expires soon so need to run through my labs.
Dear David, Thanks so Much it's awesome Like always
Always making it simple
Grateful for the explanation.
Nice explanation David 👍
Thanks Allot sir 👍
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!
thank you
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 :)
great video!
Hi David excellent tutorial I have one question though how does the switch know about the Mac address of the multicast ip address?
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.
The pc encapsulates the ip packet with a specific mac frame.***
The term convert sound like something NAT translation would do and is not the most appropriate term.
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???
No. Only a single NIC is required to receive unicast, multicast and broadcast frames.
@@davidbombalI guess we do assign second IP address(in this case multicast ip) from advanced settings. Should try it.Thanks for the reply.
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.
@@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.
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help me please