Method for synchronizing network device, and network device
AssigneeHuawei Technologies Co., Ltd.
InventorsJingfei Lv, Yawei Zhang
Life of this patent
Estimating the term…
Abstract
A method for synchronizing a network device includes: receiving, by the network device, a first SSM and a second SSM, where the first SSM carries a first SSM code for indicating a quality level of a first clock source and a first eSSM code for indicating the quality level of the first clock source, and the second SSM carries a second SSM code for indicating a quality level of a second clock source and a second eSSM code for indicating the quality level of the second clock source. When a value of the first SSM code is less than a value of the second SSM code, the network device calibrates a frequency of the network device based on a timing signal of the first clock source.
Claims23
A method implemented by a network device and comprising:
- receiving a first synchronization status message (SSM) and a second SSM, wherein the first SSM carries a first SSM code for indicating a first quality level of a first clock source and a first enhanced SSM (eSSM) code for indicating the first quality level, and wherein the second SSM carries a second SSM code for indicating a second quality level of a second clock source and a second eSSM code for indicating the second quality level;
- and
- determining, based on the first SSM code, the first eSSM code, the second SSM code, and the second eSSM code, a clock source for calibrating a frequency of the network device.
A network device comprising:
- a memory configured to store instructions;
- and
- a processor coupled to the memory and configured to execute the instructions to:
- receive a first synchronization status message (SSM) and a second SSM, wherein the first SSM carries a first SSM code for indicating a first quality level of a first clock source and a first enhanced SSM (eSSM) code for indicating the first quality level, and wherein the second SSM carries a second SSM code for indicating a second quality level of a second clock source and a second eSSM code for indicating the second quality level;
- and
- determine, based on the first SSM code, the first eSSM code, the second SSM code, and the second eSSM code, a clock source for calibrating a frequency of the network device.
A computer program product comprising instructions that are stored on a non-transitory medium and that, when executed by a processor, cause a network device to:
- receive a first synchronization status message (SSM) and a second SSM, wherein the first SSM carries a first SSM code for indicating a first quality level of a first clock source and a first enhanced SSM (eSSM) code for indicating the first quality level, and wherein the second SSM carries a second SSM code for indicating a second quality level of a second clock source and a second eSSM code for indicating the second quality level;
- and
- determine, based on the first SSM code, the first eSSM code, the second SSM code, and the second eSSM code, a clock source for calibrating a frequency of the network device.
Dependencies are inferred from the claim text.