Understanding Precision Time Protocol (PTP)

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In this video, you'll learn the theory of Precision Time Protocol (PTP), how it differs from Network Time Protocol (NTP), and how to interpret PTP configurations.
Precision Time Protocol is one of the new topics introduced in version 1.1 of Cisco's ENCOR (350-401) exam, which goes live on Sept. 20, 2023.
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Kevin Wallace, CCIEx2 # 7945 Emeritus (Collaboration and Ent. Infrastructure)
Homepage: kwtrain.com
RUclips: / kwallaceccie
LinkedIn: / kwallaceccie
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If you enjoyed this video, here is the video title and also the link for you to share:
Understanding Precision Time Protocol (PTP)
• Understanding Precisio...
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[@kenechukwunduka]

Thanks for what you are doing in this Tech industry

[@majiddehbi9186]

Hello, Mr Wallace happy , to see you again , you are our real mentor, any advices for my next CCNP ENCOR exam in 03 in 03 months

[@BullCraftMaxx]

Hi Kevin, would you also considering making videos on SDP (Session Description Protocol) and RTP? Your videos make things so easy to understand for anybody 😊

[@purplemonkeydishwasher5269]

I'm sure if you look RTP and SRTP are out there. Kevins background is UC. So it will be in his play list somewhere

[@kosmonautofficial296]

Thanks so much! Went through so much training and didn’t find anything on this.

[@starioa]

That is the best explanation of PTP. Thanks a lot!
If I have docker containers in the same host machine, they all share the same clock, so, it is NOT possible to do PTP on them, correct? Is there a way to simulate clocks?
Better to use VMs, if I want to clock sync virtual machines on the same host machine?

[@BullCraftMaxx]

Thanks for making this! The broadcast uses this for the SMPTE 2110 standard. I will be sharing this 😊

[@Douglas_Gillette]

I am familiar with Dante and other real time media technologies as well.

[@BullCraftMaxx]

@@Douglas_Gillette Dante is pretty simple actually. It doesn't require PTP (although you can use it) as it has its own system of timing and can even use things like Word Clock. Basically Dante just chooses one device as the master and the sync automatically happens.
In SMPTE 2110 it is much more complex. PTP is needed because the Audio, Video, and ANC data are uncompressed that use RTP protocol and SDP for format understanding. Literally without PTP the whole system goes down.

[@Douglas_Gillette]

@@BullCraftMaxx I thought for certain Dante required PTP. 🤔🤔🤔

[@BullCraftMaxx]

​@@Douglas_GilletteSorry, let me rephrase this better. Dante doesn't require an external PTP Clock. One device is elected as the leader clock to which the other devices are synchronized. You can wire word clock to a Dante device that you want to be master, it will put it's timing from that, and handle PTP within the Dante ecosystem.
In 2110, you have to have an external PTP Clock to handle timing, from a device such as a Telestream SPG8000a.

[@BloodyMer]

very informative. Thank you. I have to deploy this and I had no idea this protocol even existed

[@feel82]

Very good explanation. Many thanks.😄

[@anshumansingh6252]

Excellent!

[@sudiptabhar3161]

GREAT...!!!!

[@basadake]

Hello Papa Bear. Cool video as always.

[@oleksandrone]

It is not mentioned that PTP is also used in DOCSIS.

[@rafbru]

If PTP synchronizes clocks, why does the local clock time between IE-GMC and IE-BC differ by 87 seconds?

[@Paul-G232]

Lucid Explanation

[@purplemonkeydishwasher5269]

Hi Kevin bought your new ENCOR 1.1 course. I love how you have built CML and automation in from the word go by providing those YAML files.

[@oleksandrone]

Best PTP explanation ever

[@DKORALable]

The ENCORE Exam changed?

[@kwallaceccie]

It changes in Sept. 20th.