What is PTP master?

The Precision Time Protocol (PTP) is a protocol used to synchronize clocks throughout a computer network. On a local area network, it achieves clock accuracy in the sub-microsecond range, making it suitable for measurement and control systems.

Does PTP require special hardware?

NTP requires no hardware provisions to capture timestamps other than a typical Unix timer interrupt or counter/timer motherboard chip. PTP normally includes hardware provisions in the servers, clients and switches to capture timestamps upon the passage of an Ethernet frame at the physical layer.

How does PTP sync work?

PTP synchronizes a clock by exchanging three messages:

1. The master initiates the sync by sending a sync message.
2. The slave sends a delay request message back to the master.
3. The master responds with a delay response message.

Why do I need PTP?

PTP fills a clock-synchronization need between NTP and GPS-based clock synchronization, with accuracy to 1 μs. There are two reasons to use PTP instead of GPS. One is that in a PTP network only one GPS receiver is needed, which is less expensive than giving each network node its own GPS receiver.

What is GrandMaster identity?

GrandMaster ID: Clock identity for the grand master clock. If the local clock is not a slave, the value is the clock’s own id. • GrandMaster Clock Quality: The clock quality announced by the grand master (See the description of Clock Default DataSet: Clock Quality).

Does PTP require GPS?

What is PTP IP address?

224.0.1.129
The PTP primary IP address is 224.0. 1.129 for IPv4 and FF0X:0:0:0:0:0:0:181 for Ipv6, where X can be a value between 0x0 and 0xF, see IEEE 1588 Annex E, Section E. 3. Delay Request Messages MAY be sent as either multicast or unicast PTP event messages.

How accurate is PTP?

They achieve accuracy to 0.01 μs (10 ns). PTP fills a clock-synchronization need between NTP and GPS-based clock synchronization, with accuracy to 1 μs. There are two reasons to use PTP instead of GPS.

Who is the leader of Ouroboros?

The Grandmaster
The Grandmaster ( 盟主 グランドマスター ) is the absolute leader of Ouroboros. She describes herself as “a ‘shadow’ that declares the appointed time of the world”.

Why is the Grandmaster immortal?

The Grandmaster is an immortal capable of manipulating cosmic energies for various effects. He is almost totally immune to disease, and can regenerate from virtually any injury or recover from being slain.