Glossary
786 88000 Series
1588 PTP
Telecom Profile G.8275.1
The Telecom Profile G.8275.1 is designed for time/phase synchronization in
telecom network applications. The main attribute of this profile are:
Full timing support from the network, i.e. all network nodes are
boundary clocks
Slave clocks synchronize with its respective upstream Boundary Clock
1588 messages are mapped on Ethernet Multicast
A very important distinction that has to be made compared with G.8265.1 is
the mandatory use of Boundary Clocks with G.8275.1. With G.8265.1,
network nodes such as Ethernet Switches or Routers were not required to
be PTP aware. With G.8275.1, all network nodes needs to be PTP aware.
This means that regular Ethernet Switches or Routers cannot be used.
Switches/Routers are required to include the Boundary Clock functionality.
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