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CCNA 200 - 301 - Lesson 87: Understanding Network Time Protocol (NTP)
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Section - 20: Mastering IP Services:
CCNA 200 - 301 - Lesson 87: Understanding Network Time Protocol (NTP)
We are back again with a new topic in our CCNA Course series. In this Video, we will discuss what NTP is. Let’s get started -
What is NTP?
NTP stands for Network Time Protocol. It is a UDP (User Datagram Protocol) based protocol that uses port numbers 123 and is used to synchronize time amongst all the networking devices. Networking devices refer to routers, switches, or firewalls.
NTP Stratum Preference
Stratum is the value that tells you how far you are from the NTP server. In a domain, there can be a maximum of 15 NTP servers.
Suppose you have a chain of devices connected, there is an atomic clock which is using a Stratum value 0, the device that will send time acting as the client has the Stratum value of 1. The second device will sync time with the first device and the Stratum value on the second device will be 2. In this way, you can connect 15 servers at once. The 16th server will be considered unsynchronized.
When it comes to the third device, it will sync time from the atomic clock and therefore, it will have the Stratum value of 1. The 3rd device and router will act as a server and as a client at the same time and so the Stratum value on the 4th device will be 2.
Why do we use a Stratum Value?
In a real-time network, if you are using a single NTP server and it fails, then the devices will require other servers to synchronize time. That’s why multiple NTP servers are used and to prefer one server over another, we use the concept of Stratum. NTP client will try to sync time to the sync time with all the servers but it will use the server that has the lower Stratum value.
In this video, we have discussed what NTP is, how we use NTP in our networks and what is the concept of Stratum in NTP.
If you want to get a high paying job, just then keep learning after completing your CCNA Course until you hit the CCIE certification.
Our 100% Job guarantee courses are specially designed for students aiming to get placed just after completing their Cisco CCIE Course Training. These courses are designed after thorough industry research and include multiple latest technologies, practical sessions and personality development sessions.
Reach out to our education counsellor for more details!
WhatsApp - +917840018889
Toll-Free Number - 1800-313-2545
Happy Learning!
CCNA 200 - 301 - Lesson 87: Understanding Network Time Protocol (NTP)
We are back again with a new topic in our CCNA Course series. In this Video, we will discuss what NTP is. Let’s get started -
What is NTP?
NTP stands for Network Time Protocol. It is a UDP (User Datagram Protocol) based protocol that uses port numbers 123 and is used to synchronize time amongst all the networking devices. Networking devices refer to routers, switches, or firewalls.
NTP Stratum Preference
Stratum is the value that tells you how far you are from the NTP server. In a domain, there can be a maximum of 15 NTP servers.
Suppose you have a chain of devices connected, there is an atomic clock which is using a Stratum value 0, the device that will send time acting as the client has the Stratum value of 1. The second device will sync time with the first device and the Stratum value on the second device will be 2. In this way, you can connect 15 servers at once. The 16th server will be considered unsynchronized.
When it comes to the third device, it will sync time from the atomic clock and therefore, it will have the Stratum value of 1. The 3rd device and router will act as a server and as a client at the same time and so the Stratum value on the 4th device will be 2.
Why do we use a Stratum Value?
In a real-time network, if you are using a single NTP server and it fails, then the devices will require other servers to synchronize time. That’s why multiple NTP servers are used and to prefer one server over another, we use the concept of Stratum. NTP client will try to sync time to the sync time with all the servers but it will use the server that has the lower Stratum value.
In this video, we have discussed what NTP is, how we use NTP in our networks and what is the concept of Stratum in NTP.
If you want to get a high paying job, just then keep learning after completing your CCNA Course until you hit the CCIE certification.
Our 100% Job guarantee courses are specially designed for students aiming to get placed just after completing their Cisco CCIE Course Training. These courses are designed after thorough industry research and include multiple latest technologies, practical sessions and personality development sessions.
Reach out to our education counsellor for more details!
WhatsApp - +917840018889
Toll-Free Number - 1800-313-2545
Happy Learning!
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