Network and method for implementing a high-availability grand master clock

摘要

In a network based on IEEE 1588, comprising a plurality of nodes (201, 501) and a plurality of connections where each connection connects at least two nodes to allow communication between nodes including the exchange of messages according to a network protocol, the synchronization of IEEE 1588 is improved by allowing multiple grandmaster clocks (701) to operate simultaneously in the system. Thus, the re-election protocol of IEEE 1588 is made obsolete. For this, a multitude of nodes form a subsystem implementing a high-availability grand master clock (301) according to the IEEE 1588 Standard, wherein the subsystem is configured to tolerate the failure of at least one of said nodes forming said subsystem. Bi-directional communication link (401) are configured for physically connecting a IEEE 1588 Master clocks (201) and/or IEEE 1588 Slave clocks (201) to the subsystem implementing a high-availability grand master clock (301).

主权项

1. A network comprising a plurality of nodes and a plurality of connections where each connection connects at least two nodes to allow communication between connected nodes including an exchange of messages according to a network protocol comprising:
a high-availability grand master clock according to the IEEE 1588 Standard that is implemented by a subsystem of the network of at least two computing nodes that includes a switch and is configured to tolerate failure of at least one of at least two nodes in the subsystem, where the high-availability grand master clock provides a compression function that configures the subsystem to:
receive IEEE Sync messages from a plurality of standard IEEE 1588 grand master clocks connected to the subsystem implementing the high-availability grandmaster clock,generate a new IEEE 1588 Sync message based upon the IEEE 1588 Sync messages received from the plurality of standard IEEE 1588 grandmaster clocks, andtransmit the new IEEE Sync message over at least one bi-directional communication link to at least one of an IEEE 1588 Master clock and IEEE 1588 Slave clock, where each at least one bi-directional communication link physically connects one of an IEEE 1588 Master clock and an IEEE 1588 Slave clock to the subsystem implementing the high-availability grand master clock.