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Пікірлер
@muhammadissam3684 Ай бұрын
Heyy buddy, just checking in on you, are you okay? I love your content. Hands down the best core network content across the whole internet.
@NguyenThiTam0910 3 ай бұрын
I love this, thank you so much for sharing, i am a newbie in this area.
@muktyleo 3 ай бұрын
Kindly do more video on this please
@RobertDunn310 6 ай бұрын
Interesting video. Is there a way to sniff traffic on a Samsung Galaxy smartphone to see it connect to these SGW/PGW in real time?
@muktyleo 8 ай бұрын
Thank you
@soimtheowl 8 ай бұрын
Hello. After a whole load of trying to learn this stuff, your video was gold. Do you have any recommendations for tutorials about MAP and CAP?
@chabaneelhocine5698 Жыл бұрын
it is a master piece. thank you a lot for your efforts
@jamesshang7975 Жыл бұрын
层层推进，神人！
@ciroiriarte8804 Жыл бұрын
Thanks a lot for making the time to publish this!. Are the notes shared somewhere?
@bavadara 2 жыл бұрын
Hi Russel, this is great. watched your video when i joined the industry 7 years back. rock solid foundation. can you help with a video of the 5g call flow as well? that would be really helpful. Thanks in advance :)
@Air-nomads 2 жыл бұрын
nope
@romasy3990 2 жыл бұрын
Thank you Dear Mr.Russel I have flopped m2pa links What do you suggest to know the root of this problem?
@SunilYadav-ol6cz 2 жыл бұрын
Ims security???
@oluwatobilobaayofe6303 2 жыл бұрын
Thanks for this video. It's quite unfortunate I have had this notion that SCTP is used for real-time communications such as voice and video calls/conferencing. Perhaps I mislead myself based on the fact the protocol is being said to be usually employed in telecom networks and my assumption was basically voice calls without considering data networks traverses through the network.
@sypher4912 Жыл бұрын
Yeah, I disagree with his take. 5G LTE networking uses SCTP transport for the GTP-u tunneling protocol.
@drebutters4282 2 жыл бұрын
Really in-depth explanations. You seem to be very familiar with these protocols and give great examples.
@ivanki731 2 жыл бұрын
awesome vid
@mhamd2020 2 жыл бұрын
Love it! Can we have a hand-on session on an end-to-end behavrou analysis of and UE when trying to cement the the core network? e.g., UE first connect to gNB, then trying to connect to EMF and NRF what are the exchanged information ? can we see those information in K8S cluster ? Such information and hands on experience will be highly beneficial.
@Girry_ 2 жыл бұрын
This is gold. Everytime I watch this video, I grasp more and more info. Been watching intermittently for 8 years. Hahah.
@Girry_ 9 ай бұрын
Here I am again.
@ditritrio2247 2 жыл бұрын
Nice video and very good and clear explanation. Quick question, if you have multiple APN's that have the same way of PGW selection I guess you can do it as well with the same CNAME aliases principle like with the TACs?
@khaledhossain4642 3 жыл бұрын
Last time I have learned EPC,IMS ..now learning 5G ..great lecture ..Many many thanks
@JoshuaNomwesigwa 3 жыл бұрын
Very informative and elaborate, thank you
@JoshuaNomwesigwa 3 жыл бұрын
Well explained, thank you
@russellteejaymolina6736 3 жыл бұрын
Hi nice explanation, but I dont see the actual volte call flow once set up by the IMS, can you specify the voice call flow between two users accessing a single eNodeB base station. Thanks
@sassynatan 3 жыл бұрын
At Last some good overview about SCTP
@mubarikali3452 3 жыл бұрын
Thank you much
@kipfepuleai4639 3 жыл бұрын
This is good information and many thanks for sharing this...
@javiervelasquezgil4109 3 жыл бұрын
I loved it, thanks!
@anilkumarchoudhary8444 3 жыл бұрын
very nice video ,easy to understand tried to capture and explain all possible thing, i never found any video which explain when to use SCCP and TACP like u did. i am requesting please share one such informative and well explained vidoe with example to understand well only on SIGTRAN. Also if possible please make some video on VoIP, SIP.
@JahidMasud 3 жыл бұрын
Hi Russell, when is your next tutorial coming? Eagerly waiting :)
@heybillpack 3 жыл бұрын
<whisper whisper whisper> *!!!DING!!!!* <whisper whisper whisper> :) Good video, turn off the system beep!
@QuadraticSquared 3 жыл бұрын
Oh yes, I'm sorry about that. There were a couple other videos I completely re-did because of sound issues that were even worse. :)
@heybillpack 3 жыл бұрын
Lovely info, but holy crap those system dings are killing my ears.
@nikosapostolakis7895 3 жыл бұрын
Great video and really thanks for sharing your knowledge! It is very enlighting! I am trying to understand SCTP procedures, because recently I have run through a problem in which eNB tries to connect to an MME to establish the S1-AP connection. eNB sends an INIT, MME responds with an INIT-ACK but unfortunately eNB replies with an ABORT chunk.
@முதலும்நீமுடிவும்நீ-ந6ச 4 жыл бұрын
Hey russel really great explanations..Can you please start the video to explain about 5G concepts.
@HassanElmzouart 4 жыл бұрын
Hi Dear, Thank you for your presentation its really helpful , Please if you can provide me these slides i have a presentation about SS7 next week
@replywasims 4 жыл бұрын
Hi Russell .. can you please share the link for slides/one-note file that you are using in this video?
@juliosantisteban8452 4 жыл бұрын
min 13:45 SCTP is not an RDT 100%, but SCTP has to modes UDP and RDT, which one you are talking about?
@QuadraticSquared 4 жыл бұрын
UDP is an alternate transport protocol to SCTP, not a "mode" of SCTP. That part of the video was discussing TSN acknowledgement concepts in SCTP RFC 4960, described categorically (eg: section 1.5.4). Can you clarify what you are referring to? "RDT" is not a term found in the SCTP RFC, and UDP is a real thing but a completely different protocol to SCTP.
@juliosantisteban8452 4 жыл бұрын
Reliable Data Transfer (RDT) , SCTP implements RDT, but you mention that SCTP allows to skip msg 26 which will break the RDT protocol. RFC 4960 also mention in 6.7 that gaps are reported until is received as is describe in 6.2.1.
@QuadraticSquared 4 жыл бұрын
@@juliosantisteban8452 I did not say that SCTP "allows" to skip chunk 26, but rather that data chunk 26 could potentially be lost, where I then described SCTP's duplicate-ack mechanism which allows the receiver to indicate what needs to be retransmitted. I think the problem here is interpretation. Retransmissions and lost packets aren't "allowed" to happen by the protocol, but the protocol has mechanisms to deal with these unwanted things happening.
@juliosantisteban8452 4 жыл бұрын
@@QuadraticSquared I found the video very useful, but I still I have some doubts perhaps as you mention interpretation is the key. nevertheless, I will recommend the video to my students., cheers.
@davedamerjian6035 4 жыл бұрын
great absolutely great
@ArthurCor-ts2bg 4 жыл бұрын
Excellent exposition
@ArthurCor-ts2bg 4 жыл бұрын
Logically SMF must also do conventional DHCP function......is that understanding correct??
@QuadraticSquared 4 жыл бұрын
The concept of DHCP, although in actual signaling it would be "PCO Options" as opposed to DHCP attributes and options in an "offer" message. That's not to say you couldn't have a DHCP server being queried by an SMF, but the protocol in use isn't DHCP between the UE and SMF for address assignment.
@ArthurCor-ts2bg 4 жыл бұрын
@@QuadraticSquared Like NRF subsumes DNS function, which element of 5G core is responsible for dhcp function....Thank you for your patient response
@mohammadnuralhassan8527 4 жыл бұрын
nice but , explanation is some what fast... my view is to low the speed
@RajnishAhuja 4 жыл бұрын
Thanks, this is a very nice introduction to 5G. Hope you have more videos somewhere :)
@pouriaall3925 4 жыл бұрын
Many thanks for explanation 👍
@IrfanAli-jl7vb 4 жыл бұрын
Hi Russell. Excellent videos explaining the use of DNS in EPC. Is it possible for you to share the zone files either here or on github. I just got a bind server up and wanted to experiment. Thanks
@GuruVlk 4 жыл бұрын
thank you for this summary
@javadgh1034 4 жыл бұрын
Very good, appreciate it .
@sagarkar701 4 жыл бұрын
Hi Russell, I hope you are doing great. Would you let me know what is the interface name between MME and DNS and what protocol are they using ? Thanks for your help.
@QuadraticSquared 4 жыл бұрын
The protocol is actually DNS, where the interface doesn't have a formal name. The closest think you'll find to an interface specification would be 3GPP TS 29.303.
@sagarkar701 4 жыл бұрын
@@QuadraticSquared Thanks .. :)
@McNickolson 4 жыл бұрын
Thanks for the easy to undertand seminar! By the way did you upload a video with describing how to trace a session in wireshark??
@McNickolson 4 жыл бұрын
excellent presentation!!
@riadokba1580 4 жыл бұрын
I came for topoff/topon! you kept saying I'll get to that in second... when we reach time for delivery, it wasn't clear.... so anoying How the hell a node going to understand "closeness" of a network topology?!! and what's the longest match?!!
@QuadraticSquared 4 жыл бұрын
With "topon", you read the name from right to left, where a "closer" node is one with more matches until they stop matching. For example, this SGW interface name has five levels of hierarchy (mcc234 > mnc123 > east > sgw1 > eth1): topon.eth1.sgw1.east.mnc123.mcc234. Of the following two PGW interfaces, the first will win on topological closeness, because it has three common hierarchy levels (mcc234 > mnc123 > east) while the second only has two levels (mcc234 > mnc123). Here "east" is said to be "closer" than "west", but by "closer" we just mean more names match through the right-to-left hierarchy as we read the FQDN: topon.eth2.pgw1.east.mnc123.mcc234. topon.eth1.pgw1.west.mnc123.mcc234.
@mvexler 4 жыл бұрын
Great and clear!