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Well Explained .. Thank you. So much

Papa 🙌🙌🙌 Well done

Thank you

Harris Robert Thomas Scott Rodriguez James

I finally understood multicast topic. Thank you!!

Great video! thanks for sharing

Excellent explanation of Multicast, Thank you.

does the rendezvous point keep changing when more igmp joins come in at some later point in time from different switches ?

Thank you.

Perfect explanation, loved it!

Do u have the presentaion of L3VPN or the resource ?

How do you store this snowblower for winter? Is there a tutorial video by him? He does a great job.

This video really tied it all together for me after watching/reading dozens of sources trying to explain multicast routing and still struggling to understand how it all works together. Superb presentation! Thank you for taking the time to share your knowledge.

Great explanation of IP multicast. Thanks!

Great, is there also a video about Software PTP so with with no PTP Hardware and if using Software PTP if a acceptable choice when going for low latency in a small lab enviroment?

That's awesome, thanks for sharing that

nice and well explained !

Appreicate it. Maybe you can also upload a video that explains each header. I believe Segment Routing Label is your transport label and PW label is a VPN label signalled by TLDP or eVPN. However I am not aware what is control word :) Thank you for your posts

It's surprising for me to learn your channel. Excellent video. Appreciate it

Thank you for your video. Got my blower started with your directions.

Good video, Mutlicast mac seems wrong

Im a telco guy, you didnt include the evolution of PDH to SDH then NGSDH to CWDM to DWDM and now OTN. We actually have more optical transport on the local networks than long haul. The IP and Ethernet guys always believe that their P and PE routers are directly connected via fibre over a 10Gbe port which isnt always the case. ROADM isnt cheap because its design is multiplexed similar to SDH and you need to build a ring and cannot just do a hub and spoke as per the older passive DWDM networks for best practice. Its also not economical for enterprise transport because the client ethernet ports on muxponder transponders are typically clear channel and you still need a switch or router to do your traffic engineering and routing etc. Its mainly a transport multiplexing purpose as how we have deployed them since 1990 hah.

Hi Anne so for RSVP-TE the FRR is only configured in the LSR's?

Thank you, Barbara. Great Video!

Interesting topic, I have had little experience with dwdm, mostly wdm, cwdm, for access we usually use gpon or gepon.

As an old telecom guy, going back to the analog days, I found your comments about going hop to hop to hop to cover a long distance curious. Even half a century ago, when I got started in the business, there would be trunks carrying the traffic between distant locations, without being broken down at each hop. These days, there could be some fibres used for short hops, but also others that are essentially passed all the way between distant points, without passing through routers routers along the way. And yes, they worry about power levels, as they did even back in the analog days, where too strong a signal could result in distortion and intermod between circuits. Even the test tone levels were reduced, when testing over analog microwave links, for that reason. BTW, there is also Coarse Wavelength Division Multiplex (CWDM) often used over short distances, where perhaps a dozen wavelengths are used over a fibre and the appropriate SPF modules are used for the wavelength. These could plug into any standard router that can accept SPFs. In this situation, the multi-wavelength would connect to a diffraction grating filter, which splits out the various wavelengths and then connects to the individual devices.

Did not work.

Hi Barbara, Can you explain why P5 is considered in the Q-space as it is not on the post computed shortest path.

Confusing

Concise and helpful :) Thank you very much :)

i invented this...

I believe, or at least the way it's illustrated on mine, you want the choke to the left.

Thank you very much.

Very short and highly informative video, now I understood the basics well. Thanks a lot @BarbaraAnne.

excellent

Got cut off at the end?

Excellent and very detailed explanation. I was struggling getting the P and Q knows. Now I have a better understanding. Also, a great point was how to the P4 router calculates what label to push, whether the prefix sid or a adj sid label.

22:45 - why does router 6 not chose to be identified by SID=6 and instead that strange SID 16006 is used? And how does Segment Routing differ from MPLS with a label stack?

Hello, I was under the impression that you seem to have come to as well using ROADM rings to actually do all the movement of data between large spread out aggregation boxes and having a few ROADM cards would let you put huge amounts of bandwidth onto few fiber pairs. Some vendors will do 32+ 1.2Tb/s channels in just the C band and another 32+ in the L band. Why is it that some vendors like Nokia and Cisco are really pushing for integrating Dense Wave Division Multiplexing Links straight into the routers and connecting them straight to each other arguing that the ROADM functionality can be bypassed entirely for operation expenses reasons since now you only manage "1 layer"? Routers are far far more expensive than optical transport equipment and offer far far less throughput per fiber run and just like in your example the closer you get to large peers or the internet drain you need higher and higher capacity chassis to switch traffic from downstream boxes.

I gotta say this is the best explanation I have ever come across on this.

Great session

It seems like this protocol is only useful in highly dedicated networks. In other words, it wouldn’t work over the Internet.

Brilliant, by understanding of SRv6 is significantly enhanced

One of the best explanations of Multicast, PIM-SM, and IGMP Snooping

Great advices and thank you so much for sharing...

Amazing high level explanation! It really puts into perspective why and how everything works together the way it does.

Exactly the explaination im looking for. Simple and easy to understand. Thank you !

This was amazing. Thank you

Once we are receiving multicast traffic through the RP, it’s possible to switch to the SPT (Source Path Tree). From the diagram , dont see any other alternative paths toward 4 switches.

You have a bright red kill switch for the ignition you can pull if throttling all the way down doesn't kill it. You don't want to drain the carb out if you're just going to be starting it again. The fuel cut off is for storage.