Clock synchronization method and device
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United States of America Patent
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Jun 14, 2016
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app pub date -
Nov 15, 2013
filing date -
Jan 30, 2013
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Abstract
Embodiments of the present invention provide a clock synchronization method and device. The method includes: receiving, a preconfigured multi-protocol label switching (MPLS) capability parameter and a traffic engineering (TE) capability parameter, and establishing, based on the MPLS capability parameter and the TE capability parameter, an MPLS tunnel interface; establishing, an MPLS TE tunnel whose bidirectional paths are consistent between the first clock synchronization device and a second clock synchronization device; and performing, clock synchronization message interaction with the second clock synchronization device through the established MPLS TE tunnel. In the embodiments of the present invention, by establishing the MPLS TE tunnel whose bidirectional paths are consistent between the first clock synchronization device and the second clock synchronization device which perform clock synchronization message interaction, symmetry of clock synchronization message interaction paths is ensured, and therefore, a time error in clock synchronization resulting from asymmetry of the paths is avoided.
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