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US 12,294,469 B2Granted
Boundary clock synchronized loop
AssigneeMellanox Technologies, Ltd.
InventorsNatan Manevich, Dotan David Levi, Wojciech Wasko, Ariel Almog, Bar Shapira
Life of this patent
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Abstract
In one embodiment, a synchronized communication system includes a plurality of network devices, and clock connections to connect the network devices in a closed loop configuration, wherein the network devices are configured to distribute among the network devices a reference clock time from any selected one of the network devices.
Claims31
A synchronized communication system, comprising:
- a plurality of network devices including a first network device, one or more intermediate network devices, and a last network device;
- and
- clock connections to connect the network devices in a closed loop configuration, wherein:
- each of the network devices has an output connected to an input of a next one of the network devices via a respective one of the clock connections, while the last network device has an output connected to an input of the first network device via another respective one of the clock connections;
- the network devices are configured to distribute among the network devices, via ones of the clock connections, a reference clock time from any selected one of the network devices, which is designated as a local reference clock;
- at a first time, one of the plurality of network devices is designated as the local reference clock and is configured to distribute the reference clock time among the network devices;
- and
- at a second time, another one of the plurality of network devices is designated as the local reference clock and is configured to distribute the reference clock time among the network devices.
5 more elements
A synchronized communication method, comprising:
- connecting network devices including a first network device, one or more intermediate network devices, and a last network device with clock connections in a closed loop configuration so that each of the network devices has an output connected to an input of a next one of the network devices via a respective one of the clock connections, while the last network device has an output connected to an input of the first network device via another respective one of the clock connections;
- and
- distributing among the network devices, via ones of the clock connections, a reference clock time from any selected one of the network devices, which is designated as a local reference clock;
- at a first time, designating one of the network devices as the local reference clock and distributing the reference clock time among the network devices;
- and
- at a second time, designating another one of the network devices is designated as the local reference clock and distributing the reference clock time among the network devices.
3 more elements
Dependencies are inferred from the claim text.