Patent ID: 8335861

Claim:
A method for processing correction field information comprising: receiving a packet carrying correction field information, and obtaining a first correction value contained in the correction field information; obtaining first time information and second time information according to a time for the packet entering device, the first time information is nanosecond value information, the second time information is second value information; obtaining a second correction value according to the first correction value and the first time information; updating a first correction value in the correction field information to be the second correction value, and inserting the second time information into the correction field information; obtaining third time information and fourth time information according to a time for packet exiting device; the third time information is nanosecond value information, the fourth time information is second value information; obtaining a third correction value according to the second correction value, the second time information, the third time information, and the fourth time information; and updating the second correction value in the correction field information to be the third correction value.