Only one peer clock address can be configured as clock source.īoundary clocks can assume any of the following roles:Ī BC that can only be a grandmaster (T-GM)Ī server-only boundary clock can have multiple server port configured. Not provide synchronization through PTP to any other device.Īn ordinary clock with single client port can be configured. Synchronizes its local clock to another PTP clock (GM, T-GM or T-BC), and does Partial-Support Telecom Time Subordinate/Client Clocks (T-TSC-P): A client clock Role does not change by negotiating with its peer. The T-GM OC server port is a fixed port that is, it always acts as a server clock and its One T-GM server port can have multiple clients associated with it. Only one PTP port can be configured as a server port. It does not synchronize its local clock to other network The network, and is usually connected to a server reference time source, such asĪ GNSS receiver. Telecom Grandmaster (T-GM): A telecom grandmaster provides timing for other devices in Two types of ordinary clocks and three types of boundary clocks are used in this profile: The fourth generation (4G) of mobile telecommunications technology.
The G.8275.2 profile is used in mobile cellular systems that require accurate synchronization of time and phase.
Hence nodes using G.8275.2 are not required The G.8275.2 profile is based on the partial timing support from the network. Restrictions for Using the G.8275.2 Profile.However, IPv6 is not supported in Cisco IOS XE Everest Uses PTP over IPv4 and IPv6 in unicast mode. It differsįrom G.8275.1 in that it is not required that each device in the network participates in the PTP protocol. The G.8275.2 is a PTP profile for use in telecom networks where phase or time-of-day synchronization is required. Selection of PTP configuration options that are selected to meet the requirements of a particular application.ġ6.5.1, Cisco ASR 900 routers with RSP3 module support the ITU- T G.8275.2 telecom profile (PTP telecom profile for Phase/Time-of-day synchronization with partial timing
PTP allows for separate profiles to be defined in order to adapt PTP for use in different scenarios. It defines an exchange of timed messages. Precision Time Protocol (PTP) is a protocol for distributing precise time and frequency over packet networks.
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