Optical network data transmission method as well as system and equipment thereof
A technology for sending data and sending equipment, applied in the field of optical communication, it can solve problems such as service interruption, poor user experience, and reduced user satisfaction, saving ranging time, reducing interruption time, and ensuring continuity.
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Example Embodiment
[0058] Example 1
[0059] When the backbone fiber of the main OLT in the PON network fails (or the main OLT fails), the PON network needs to perform a main-standby switchover to switch data to the standby OLT. This embodiment is based on figure 2 The schematic diagram of the active / standby switch provided is taken as an example. During the switchover of the active and standby OLTs, due to the difference in the length of the active and standby backbone fibers, the standby OLT is the new active OLT. The ONU performs re-ranging processing. In order to reduce the ranging time required for performing ranging processing on all the connected ONUs and reduce the service interruption time, an embodiment of the present invention provides a method for transmitting data on an optical network. See image 3 In this embodiment, the main-use OLT's backbone fiber fails and needs to be switched as an example for description. The content of the method is as follows:
[0060] 101: The active OLT dete
Example Embodiment
[0097] Example 2
[0098] In the PON network, due to the main and standby OLT switching caused by the failure of the backbone fiber, each ONU needs to obtain a new EqD value due to the difference in parameters such as the length of the main and backup backbone fibers, see Figure 5 , The embodiment of the present invention provides a system for transmitting data on an optical network, the system includes: a transmitting device, a ranging device, and a non-ranging device, where:
[0099] The sending device is used to obtain the first round-trip delay Rtd value of the ranging device and the non-ranging device; it is also used to send a ranging request to the ranging device, and obtain the second value of the ranging device according to the ranging response of the ranging device. Round trip delay Rtd value; according to the first Rtd value and second Rtd value of the ranging device, obtain the change value of the Rtd value; when the change value is obtained, obtain the change value acco
Example Embodiment
[0119] Example 3
[0120] See Figure 7 An embodiment of the present invention provides a device for sending data on an optical network, and the device includes:
[0121] The acquisition module is used to acquire the first round-trip delay Rtd value of the ranging device and the non-ranging device (that is, the Rtd value on the active OLT);
[0122] The ranging module is used to send a ranging request to the ranging device, and obtain the second round-trip delay Rtd value of the ranging device (that is, the Rtd value on the standby OLT) according to the ranging response of the ranging device;
[0123] The difference module is configured to obtain the change value of the Rtd value according to the first Rtd value of the ranging device obtained by the obtaining module and the second Rtd value of the ranging device obtained by the ranging module;
[0124] The processing module is configured to obtain the second Rtd value of the non-range-finding device according to the change value obtai
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