CN112788440A - Data transmission method and equipment - Google Patents
Data transmission method and equipment Download PDFInfo
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- CN112788440A CN112788440A CN201911066319.3A CN201911066319A CN112788440A CN 112788440 A CN112788440 A CN 112788440A CN 201911066319 A CN201911066319 A CN 201911066319A CN 112788440 A CN112788440 A CN 112788440A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
- H04Q2011/0037—Operation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0086—Network resource allocation, dimensioning or optimisation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention provides a data transmission method and equipment, and the method can close an optical port transmitting power supply of a local terminal according to the idle state of a transmitting cache when data transmission is carried out between equipment through the optical port, so that the transmitting power consumption of the optical port transmitting the local terminal can be reduced. In addition, the embodiment of the present invention further triggers the opposite device to turn off the receiving power supply of the corresponding receiving optical port by sending the control message, so that the receiving of data on the corresponding receiving optical port on the second device can be stopped while the first device stops sending data on the first sending optical port, thereby saving the receiving power consumption of the second device.
Description
Technical Field
The invention relates to the technical field of data communication, in particular to a data transmission method and equipment.
Background
Based on the relevant statistics, energy consumption has become the main Operating cost of data centers (OPEX). With the popularization of Network Function Virtualization (NFV) and the Virtualization and cloud of various transmission and IP infrastructures, the demand for reducing energy consumption as much as possible is more and more urgent, and a switch serving as an infrastructure of a transmission and IP and data center has a large deployment amount, so that the low power consumption of the switch plays a significant role in reducing energy consumption.
The existing switch low-power consumption technology is summarized to have the following three schemes:
1) the optical module is used for detecting whether optical fibers are inserted or not, and a power supply of the optical module is cut off when no optical fibers are inserted.
2) And judging the link state of the optical interface by adopting software, and cutting off the power supply of the optical module if the link fails.
3) For an electrical port switch, the waste of power by a switch port when a link is idle can be solved according to an Energy Efficient Ethernet (EEE) specification defined by IEEE 802.3 az.
In the prior art, optical fibers are adopted for interconnection among each exchanger spine, leaf and tor and between tor and a server of the data center, the 3 rd scheme in the low-power-consumption technical scheme of the exchanger is specific to an electric port exchanger, and is not suitable for the scene of the optical port exchanger interconnected through the optical fibers, and in addition: the optical fibers interconnected among the data center switches which are actually deployed and delivered are connected well, and the energy consumption generated by an optical port is difficult to further reduce through a scheme of detecting whether the optical fibers are inserted or not and judging the link state by software. Furthermore, in the prior art, idle frames are usually transmitted at the interconnection ports when the link is idle, and there is a great waste in power consumption of each port of the switch in this part of time. For example, the power consumed by each optical port is typically around 1W, which varies with the speed of the optical port. Therefore, there is a need for a solution that can reduce the power consumption of devices when data transmission is performed between the devices using an optical port.
Disclosure of Invention
At least one embodiment of the present invention provides a data transmission method and device, which are used to reduce power consumption of devices when data transmission is performed between the devices through an optical port.
According to another aspect of the present invention, at least one embodiment provides a data transmission method applied to a first device, where a first transmitting optical port of the first device is connected to a second receiving optical port of a second device through an optical fiber, including:
detecting the idle degree of a sending buffer of a first sending optical port;
when the idle degree reaches a first threshold, sending a first control message to second equipment through the first sending optical port, wherein the first control message is used for triggering the second receiving optical port to enter a low power consumption state and keeping a first time;
after the first control message is sent, the sending power supply of the first sending light port is closed, and after the first time is kept, the sending power supply of the first sending light port is turned on again.
Optionally, after the step of turning on the transmission power of the first transmission light port again, the method further includes:
and returning to the step of detecting the idle degree of the sending buffer of the first sending optical port.
Optionally, when the idle degree reaches a first threshold, the step of sending a first control message to the second device through the first sending optical port includes:
when the idle degree reaches a first threshold, determining first time corresponding to the first threshold according to a preset corresponding relation table of the threshold and the time, wherein a higher threshold corresponds to a longer time in the corresponding relation table;
generating a first control message for triggering the second receiving optical port to enter a low power consumption state, and carrying indication information of the first time in the first control message;
and transmitting the first control message through the first transmitting light port.
Optionally, when the idle degree reaches a first threshold, the step of sending a first control message to the second device through the first sending optical port includes:
acquiring a first service attribute of service data cached in a sending cache of the first sending optical port;
selecting a first corresponding relation table corresponding to the first service attribute from a plurality of preset corresponding relation tables according to the first service attribute, wherein the corresponding relation table stores the corresponding relation between a threshold and time;
when the idle degree reaches a first threshold, determining first time corresponding to the first threshold according to the first corresponding relation table;
generating a first control message for triggering the second receiving optical port to enter a low power consumption state, and carrying indication information of the first time in the first control message;
and transmitting the first control message through the first transmitting light port.
Optionally, before the step of detecting the idle degree of the transmission buffer of the first transmission optical port, the method further includes:
judging whether the idle energy-saving function of the link of the first sending optical port is started or not;
entering the step of detecting the idle degree of the transmission buffer of the first transmission optical port under the condition that the idle energy-saving function of the link of the first transmission optical port is started;
and under the condition that the idle energy-saving function of the link of the first sending optical port is not started, ending the process.
Optionally, the first control message is a Pause Frame, and a reserved Padding field of the Pause Frame includes a first field and a second field, where the first field is used to indicate whether the Pause Frame is a control message for triggering entry into a low power consumption state, and the second field is used to carry indication information of the first time.
Optionally, the first receiving optical port of the first device is connected to the second sending optical port of the second device through an optical fiber; the method further comprises the following steps:
receiving a second control message from the first receiving optical port, wherein the second control message is used for triggering the first receiving optical port to enter a low power consumption state and keeping a second time;
and according to the second control message, closing the receiving power supply of the first receiving optical port, and after keeping the second time, switching on the receiving power supply of the first receiving optical port again.
The embodiment of the present invention further provides a data transmission method, which is applied to a second device, where a second receiving optical port of the second device is connected to a first transmitting optical port of a first device through an optical fiber, and the method includes:
receiving a first control message sent by first equipment through a second receiving optical port, wherein the first control message is used for triggering the second receiving optical port to enter a low power consumption state and keeping a first time;
and according to the first control message, closing the receiving power supply of the second receiving optical port, and keeping the first time, and then switching on the receiving power supply of the second receiving optical port again.
Optionally, after receiving the first control message, the method further includes:
judging whether the idle energy-saving function of the link of the second receiving optical port is started or not;
under the condition that the idle link energy-saving function of the second receiving optical port is started, turning off the receiving power supply of the second receiving optical port according to the first control message, and turning on the receiving power supply of the second receiving optical port again after keeping the first time;
and under the condition that the idle link energy-saving function of the second receiving optical port is not started, discarding the first control message.
Optionally, the first control message is a Pause Frame, and a reserved Padding field of the Pause Frame includes a first field and a second field, where the first field is used to indicate whether the Pause Frame is a control message for triggering entry into a low power consumption state, and the second field is used to carry indication information of the first time.
An embodiment of the present invention further provides a first device, where a first sending optical port of the first device is connected to a second receiving optical port of a second device through an optical fiber, and the first device includes:
the idle detection module is used for detecting the idle degree of the sending buffer of the first sending light port;
a control message sending module, configured to send a first control message to a second device through the first sending optical port when the idle degree reaches a first threshold, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and the power consumption control module is used for closing the transmitting power supply of the first transmitting light port after the first control message is transmitted, and reconnecting the transmitting power supply of the first transmitting light port after the first time is kept.
The embodiment of the present invention further provides a first device, where a first transmitting optical port of the first device is connected to a second receiving optical port of a second device through an optical fiber, and the first device includes a transceiver and a processor,
the processor is used for detecting the idle degree of the sending buffer of the first sending light port; after the transceiver transmits the first control message, the transmitting power supply of the first transmitting light port is closed, and after the first time is kept, the transmitting power supply of the first transmitting light port is switched on again;
and the transceiver is configured to send a first control message to the second device through the first sending optical port when the idle degree reaches a first threshold, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time.
An embodiment of the present invention further provides a first device, where a first sending optical port of the first device is connected to a second receiving optical port of a second device through an optical fiber, and the first device includes: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the data transmission method as described above.
The embodiment of the present invention further provides a second device, where a second receiving optical port of the second device is connected to a first transmitting optical port of the first device through an optical fiber, and the second device includes:
a control message receiving module, configured to receive, through a second receiving optical port, a first control message sent by a first device, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and the power consumption control module is used for closing the receiving power supply of the second receiving optical port according to the first control message and reconnecting the receiving power supply of the second receiving optical port after keeping the first time.
The embodiment of the present invention further provides a second device, where a second receiving optical port of the second device is connected to a first transmitting optical port of the first device through an optical fiber, and the second device includes a transceiver and a processor, where,
the transceiver is configured to receive a first control message sent by a first device through a second receiving optical port, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and the processor is used for closing the receiving power supply of the second receiving optical port according to the first control message and reconnecting the receiving power supply of the second receiving optical port after keeping the first time.
The embodiment of the present invention further provides a second device, where a second receiving optical port of the second device is connected to a first transmitting optical port of the first device through an optical fiber, and the second device includes: a processor, a memory and a program stored on the memory and executable on the processor, which program, when executed by the processor, carries out the steps of the data transmission method as described above.
According to another aspect of the invention, at least one embodiment provides a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of the method as described above.
Compared with the prior art, the data transmission method and the data transmission equipment provided by the embodiment of the invention can close the optical port transmitting power supply of the local terminal according to the idle state of the transmitting cache when data transmission is carried out between the equipment through the optical port, thereby reducing the transmitting power consumption of the transmitting optical port of the local terminal. In addition, the embodiment of the present invention further triggers the opposite device to turn off the receiving power supply of the corresponding receiving optical port by sending the control message, so that the receiving of data on the corresponding receiving optical port on the second device can be stopped while the first device stops sending data on the first sending optical port, thereby saving the receiving power consumption of the second device.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic view of an application scenario according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a data transmission method according to an embodiment of the present invention applied to a first device side;
fig. 3 is a flowchart illustrating a data transmission method according to an embodiment of the present invention applied to a second device side;
FIG. 4 is a diagram illustrating an example of first and second fields provided by an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first device according to an embodiment of the present invention;
fig. 6 is another schematic structural diagram of the first apparatus according to the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a second apparatus according to an embodiment of the present invention;
fig. 8 is another schematic structural diagram of the second apparatus according to the embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. In the description and in the claims "and/or" means at least one of the connected objects.
The following description provides examples and does not limit the scope, applicability, or configuration set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the spirit and scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as appropriate. For example, the described methods may be performed in an order different than described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
As described in the background art, in the solution of the prior art, it is difficult to reduce the power consumption of the device when the optical port is used for data transmission between the devices, and in order to solve at least one of the above problems, embodiments of the present invention provide a data transmission method, which can reduce the power consumption of the device under the above conditions, thereby saving the operation cost of the device or system.
Referring to fig. 1, an application scenario of the embodiment of the present invention is provided, where the application scenario includes a first device and a second device, the first device includes a first transmitting optical port TX1 and a first receiving optical port RX1, and the second device includes a second transmitting optical port TX2 and a second receiving optical port RX2, where the first transmitting optical port TX1 of the first device is connected to the second receiving optical port RX2 of the second device through an optical fiber, and the second receiving optical port TX2 of the second device is connected to the first transmitting optical port RX1 of the first device through an optical fiber. The first device and the second device may be specifically a switch or other devices that need to perform data transmission, and may also be referred to as a first communication device and a second communication device.
Referring to fig. 2, a data transmission method provided in an embodiment of the present invention, when applied to a first device, includes:
Here, the free resources and/or the amount of buffered data in the transmission buffer (e.g., transmission FIFO) of the first transmission optical port may be detected to determine the degree of free of the transmission buffer. The larger the idle degree is, the smaller the data amount currently buffered in the sending buffer is, and the larger the idle resource is. Conversely, the smaller the idle degree is, the larger the data amount of the current buffer in the sending buffer is, the smaller the idle resource is. Specifically, the idle degree can be represented by a ratio of idle resources in the entire transmission buffer, such as 1/4 (or 25%) indicating that its idle resources are 1/4 (or 25%) of the transmission buffer. The specific manner of detecting the idle degree of the sending buffer may be implemented by reading a corresponding register or other manners, which is not specifically limited in this embodiment of the present invention.
And step 22, when the idle degree reaches a first threshold, sending a first control message to a second device through the first sending optical port, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time.
Here, in the embodiment of the present invention, a correspondence table may be preset, and the correspondence table records the correspondence between different thresholds and time. Thus, when the idle degree reaches a first threshold, a first time corresponding to the first threshold may be determined according to a preset correspondence table between thresholds and times, a first control message for triggering the second receiving optical port to enter a low power consumption state is generated, the first control message carries indication information of the first time, and then the first control message is sent through the first sending optical port. The first control message is used to trigger the second receiving optical port to enter a low power consumption state, and specifically, may be to trigger the opposite end device to close the receiving power of the corresponding receiving optical port.
In the correspondence table, a higher threshold corresponds to a longer time. For example, when the idle degree is 1/4, the corresponding time is 0.5 seconds; an idle level of 1/2, a corresponding time of 1 second, and so on. Therefore, when the idle degree of the sending buffer is larger, the current data transmission amount is smaller, so that a longer low-power consumption state can be maintained, and the embodiment of the invention can perform power consumption reduction processing specifically according to the current data transmission scene.
And step 23, after the first control message is sent, closing the sending power supply of the first sending light port, and after the first time is kept, switching on the sending power supply of the first sending light port again.
Here, after the first control message is sent, the first device turns off the sending power of the first sending optical port, so as to avoid the first device sending an idle frame when the first sending optical port is idle, thereby reducing the sending power consumption of the first device at the first sending optical port, and achieving a better energy saving effect. Specifically, when the transmission power of the first transmission light port is turned off, a timer may be started to time, and when the time reaches a first time, the transmission power is provided for the first transmission light port again to resume the operation of the first transmission light port.
Through the steps, the embodiment of the invention can close the optical port transmitting power supply of the local terminal according to the idle state of the transmitting cache when data transmission is carried out between the devices through the optical port, thereby reducing the transmitting power consumption of the optical port transmitted by the local terminal. In addition, the embodiment of the present invention further triggers the opposite device to turn off the receiving power supply of the corresponding receiving optical port by sending the control message, so that the receiving of data on the corresponding receiving optical port on the second device can be stopped while the first device stops sending data on the first sending optical port, thereby saving the receiving power consumption of the second device.
In step 23, the embodiment of the present invention may turn on the transmission power supply of the first transmission optical port again, and then, may further return to step 21, and continue to detect the idle degree of the transmission buffer of the first transmission optical port, so as to execute the above steps 21 to 23 in a loop manner, so as to continue to perform energy saving control.
Considering that in some application scenarios, in order to ensure timeliness of data transmission, it may not be desirable to turn off the power supply of the transmitting optical port/receiving optical port, for this reason, the embodiment of the present invention may further set a switch of the link idle energy saving function for the transmitting optical port, and set the switch state of the switch according to a specific application scenario. Thus, before step 21, the embodiment of the present invention may first determine whether the idle link energy saving function of the first transmitting optical port is turned on, and enter step 21 when the idle link energy saving function of the first transmitting optical port is turned on, otherwise, directly end the process, so that the idle link energy saving function of the transmitting optical port of the local device may be turned off when the idle link energy saving function is not needed.
In practical applications, different service data may be buffered in the transmission buffer, and the service data has different service attributes, for example, different requirements on transmission delay. In order to better meet the requirements of service attributes of different services, the embodiment of the present invention may set different correspondence tables for different service attributes in advance, for example, set different correspondence tables for services with different transmission delay requirements, respectively, where the correspondence tables store the correspondence between thresholds and time.
That is to say, the embodiment of the present invention may preset a plurality of correspondence tables, where each correspondence table corresponds to one service attribute. Taking the service attribute as the transmission delay requirement of the data as an example, assuming that the first corresponding relationship table corresponds to the first data transmission delay requirement, the second corresponding relationship table corresponds to the second data transmission delay requirement, and the first data transmission delay requirement (if the data transmission delay is required to be lower than 50ms) is higher than the second data transmission delay requirement (if the data transmission delay is required to be lower than 200ms), at this time, the same threshold is at the time corresponding to the first corresponding relationship table, and is lower than the threshold is at the time corresponding to the second corresponding relationship table. That is, when the data transmission delay requirement of the service is high, the embodiment of the present invention may set a short duration for closing the transmitting optical port for the service through different corresponding relationship tables, so as to adapt to the requirement of the service on the transmission delay.
Therefore, in step 22, in the embodiment of the present invention, the first service attribute of the service data cached in the sending cache of the first sending optical port may be obtained first; then, according to the first service attribute, selecting a first corresponding relation table corresponding to the first service attribute from a plurality of preset corresponding relation tables, wherein the corresponding relation table stores the corresponding relation between a threshold and time; and then, when the idle degree reaches a first threshold, determining a first time corresponding to the first threshold according to the first corresponding relation table, and further generating and sending a first control message for triggering the second receiving optical port to enter a low power consumption state through the first sending optical port, wherein the first control message carries indication information of the first time.
When the first service attribute is a data transmission delay requirement, it is considered that there may be a plurality of services with different delay requirements in the transmission cache, and therefore, when the first service attribute of the service data cached in the transmission cache of the first transmission optical port is obtained, the first service attribute may be determined according to the service data with the highest data transmission delay requirement in the cached service data.
Referring to fig. 1, in the embodiment of the present invention, the steps 21 to 23 may be performed to control the transmission power of the first transmission light port of the first device to be turned off or turned on, so as to implement the energy saving processing of the first transmission light port. In addition, since the first device may also receive data sent by the second device through the first receiving optical port, in this embodiment of the present invention, the first device may also receive a second control message from the first receiving optical port, where the second control message is used to trigger the first receiving optical port to enter a low power consumption state and keep for a second time; then, according to the second control message, the receiving power supply of the first receiving optical port is closed, and after the second time is kept, the receiving power supply of the first receiving optical port is turned on again.
Similarly, the embodiment of the present invention may also set a switch with a link idle energy saving function for the first receiving optical port, and set the switch state of the switch according to a specific application scenario. Thus, after receiving the second control message, the embodiment of the present invention may first determine whether the idle link power saving function of the first receiving optical port is turned on, turn off the receiving power supply of the first receiving optical port only when the idle link power saving function of the first receiving optical port is turned on, and keep the receiving power supply of the first receiving optical port after the second time, otherwise, discard or ignore the second control message when the idle link power saving function of the first receiving optical port is not turned on, and keep the power supply state to the first receiving optical port, so that the idle link power saving function of the receiving optical port of the local device may be turned off when the idle link power saving function is not needed.
Referring to fig. 3, the data transmission method provided in the embodiment of the present invention, when applied to the second device side, includes:
And step 32, according to the first control message, closing the receiving power supply of the second receiving optical port, and after keeping the first time, switching on the receiving power supply of the second receiving optical port again.
Through the steps, the second device can close the receiving power supply of the corresponding receiving optical port when the first device stops sending data, and the receiving power consumption of the device is reduced.
Similarly, the embodiment of the present invention may set a switch with a link idle energy saving function for the second receiving optical port, and set the switch state of the switch according to a specific application scenario. Thus, after receiving the first control message, the embodiment of the present invention may first determine whether the idle link power saving function of the second receiving optical port is turned on, turn off the receiving power supply of the second receiving optical port only when the idle link power saving function of the second receiving optical port is turned on, and keep the receiving power supply of the second receiving optical port turned on again after the first time, otherwise, discard or ignore the first control message when the idle link power saving function of the second receiving optical port is not turned on, and keep the power supply state to the second receiving optical port, so that the idle link power saving function of the receiving optical port of the local device may be turned off when the idle link power saving function is not needed.
The first and second control messages of the embodiment of the present invention can be obtained by expanding a Pause Frame (Pause Frame) defined by IEEE 802.3 x. Specifically, a reserved field (Padding) of the pause frame may include a first field and a second field, where the first field is used to indicate whether the pause frame is a control message for triggering entry into a low power consumption state, and the second field is used to carry indication information of the first time. For example, as shown in FIG. 4, the first 2 bytes of Padding can be used as the first field, and the 3 rd to 4 th bytes can be used as the second field. The time indicated by the second field may be calculated according to a product of a value of the second field and a preset time unit, where the preset time unit is usually represented by a time required for transmitting a data size of a preset size (e.g., 512 bits) by a corresponding link. For example, assuming that the transmission link of the first transmission optical port is a gigabit link, the preset unit time for transmitting 512-bit data amount is 1 nanosecond (ns).
As an example, taking fig. 4 as an example, the first field indicates a switch in the low power consumption state, and when it takes a value of 0x0000, it indicates that the control message is not a control message for triggering entry into the low power consumption state, and when it takes a value of 0x0001, it indicates that the control message is a control message for triggering entry into the low power consumption state. The value range of the second field is 1-65535, and the time unit of the second field is the unit time of transmitting 512-bit data quantity.
For example, when a gigabit interconnection link is formed between a first transmitting optical port of the first device and a second receiving optical port of the second device, and when the link is idle, the first device transmits a Pause frame in the format shown in table 1 through the first transmitting optical port, where "0001" is a first field and "FFFF" is a second field, so that the local-end transmission and the opposite-end reception will simultaneously enter a low-power-consumption mute state for the following time durations: 65535 × 512 × 1ns — 33.55 ms.
| 0180C2000001 | 82D2004001 | 8808 | 0000 | 0000 | 0001 | FFFF | …… |
TABLE 1
For another example, when a link is a hundreds of megabytes interconnected link between a first transmitting optical port of the first device and a second receiving optical port of the second device, and when the link is idle, the first device transmits a Pause frame in a format shown in table 2 through the first transmitting optical port, where a first "0001" is a first field and a second "0001" is a second field, so that the local terminal transmitting and the opposite terminal receiving will enter a low-power consumption silent state at the same time, and the duration is: 1X512X10ns ═ 5120 ns.
| 0180C2000001 | 82D2004001 | 8808 | 0000 | 0000 | 0001 | 0001 | …… |
TABLE 2
For another example, when there is a trillion interconnection link between the first transmitting optical port of the first device and the second receiving optical port of the second device, and when the link is idle, the first device transmits a Pause frame in the format shown in table 2 through the first transmitting optical port, where "0001" is a first field and the second "000A" is a second field, so that the local end transmitting and the opposite end receiving will enter a low-power silent state at the same time, and the duration is: 10 x512x 0.1ns 512 ns.
| 0180C2000001 | 82D2004001 | 8808 | 0000 | 0000 | 0001 | 000A | …… |
TABLE 3
The values of the fields in the above tables are all expressed by 16 systems.
It can be seen from the above flow that, in the embodiment of the present invention, the transmitting power supply of the transmitting optical port of the local terminal is turned off according to the idle degree of the transmitting optical port transmitting buffer, and the opposite terminal is notified to turn off the receiving power supply of the corresponding interface optical port and resume power supply after a certain time of silence by transmitting the control message carrying the silent time, so as to achieve the purpose of low power consumption when the link is idle.
The above interaction flow of the embodiment of the present invention is described below by using a specific example.
A) And the optical ports interconnected with the local end equipment and the remote end equipment respectively open the link idle energy-saving.
B) The local terminal device continuously detects the port transmission FIFO waterline by reading a register or other means, and judges the FIFO idle degree. Here, the preset threshold (threshold) is generally represented by a FIFO pipeline.
C) The quiet time of the Pause frame extension field is set to a value of 8192, 16384, 32768, or 65535, respectively, when the FIFO pipeline representation 1/8, 1/4, 1/2, or 100/100 is idle.
D) Configuring the port of the local end to send a Pause frame with an extension field when the port is idle at 1/8, 1/4, 1/2 or 100/100, and informing the opposite end to enter a link idle silent state (power saving state), wherein the default is to trigger when the port is idle at 100/100.
E) And cutting off the transmitting power supply of the optical module of the local transmitting optical port and the receiving power supply of the optical module of the remote receiving optical port, and turning on the power supply again after keeping silent time.
F) And the local end sends the monitoring of the optical port recovery to the transmission FIFO waterline, and judges whether to trigger the idle energy-saving action of the link again.
G) The link idle energy-saving implementation steps of the far-end transmitting optical port and the local receiving optical port follow the same flow.
In addition, when the link idle energy-saving function is not needed, the link idle energy-saving functions of the optical ports of the local terminal and the remote terminal equipment can be respectively closed. And, the corresponding silent time when the optical port is idle at 1/8 or 1/4 or 1/2 or 100/100 can be remapped according to the service scene.
It can be seen from the above examples that the embodiments of the present invention can enable the optical port of the switch to automatically enter the energy saving state and recover when the link is idle. In addition, the embodiment of the invention can set the threshold value of the idle degree of the link triggering the energy-saving state according to the service scene and the actual requirement, and can flexibly customize and map the duration time of the energy-saving state according to the service scene and the actual requirement. In addition, the embodiment of the invention can also respectively and accurately carry out idle energy saving aiming at the idle states of the links in two directions of the full-duplex link. Furthermore, the embodiment of the invention can expand the reserved field of the Pause frame, and has small change on the realization structure of the prior art and easy realization.
Various methods of embodiments of the present invention have been described above. An apparatus for carrying out the above method is further provided below.
An embodiment of the present invention provides a first device 50 shown in fig. 5, where a first transmitting optical port of the first device 50 is connected to a second receiving optical port of a second device through an optical fiber, and the first device 50 includes:
an idle detection module 51, configured to detect an idle degree of a transmission buffer of a first transmission optical port;
a control message sending module 52, configured to send a first control message to the second device through the first sending optical port when the idle degree reaches a first threshold, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and a power consumption control module 53, configured to turn off the transmission power supply of the first transmission optical port after the first control message is sent, and turn on the transmission power supply of the first transmission optical port again after the first time is kept.
Optionally, the power consumption control module 53 is further configured to trigger the idle detection module 51 to continue detecting an idle degree of the transmission buffer of the first transmission optical port after the step of turning on the transmission power supply of the first transmission optical port again.
Optionally, the control message sending module 52 is further configured to determine, when the idle degree reaches a first threshold, a first time corresponding to the first threshold according to a preset correspondence table between thresholds and times, where a higher threshold in the correspondence table corresponds to a longer time; generating a first control message for triggering the second receiving optical port to enter a low power consumption state, and carrying indication information of the first time in the first control message; and transmitting the first control message through the first transmitting light port.
Optionally, the control message sending module 52 is further configured to obtain a first service attribute of the service data cached in the sending cache of the first sending optical port; selecting a first corresponding relation table corresponding to the first service attribute from a plurality of preset corresponding relation tables according to the first service attribute, wherein the corresponding relation table stores the corresponding relation between a threshold and time; when the idle degree reaches a first threshold, determining first time corresponding to the first threshold according to the first corresponding relation table; generating a first control message for triggering the second receiving optical port to enter a low power consumption state, and carrying indication information of the first time in the first control message; and transmitting the first control message through the first transmitting light port.
Optionally, the first device may further include the following modules (not shown in the figure):
the judging module is used for judging whether the idle energy-saving function of the link of the first sending optical port is started or not; under the condition that the idle energy-saving function of the link of the first transmitting optical port is started, triggering the idle detection module 51 to detect the idle degree of the transmitting cache of the first transmitting optical port; and under the condition that the idle link energy-saving function of the first transmitting optical port is not started, no action is executed.
Optionally, the first control message is a Pause Frame, and a reserved Padding field of the Pause Frame includes a first field and a second field, where the first field is used to indicate whether the Pause Frame is a control message for triggering entry into a low power consumption state, and the second field is used to carry indication information of the first time.
Optionally, the first device may further include the following modules:
a control message receiving module, configured to receive a second control message from the first receiving optical port, where the second control message is used to trigger the first receiving optical port to enter a low power consumption state and keep for a second time;
the power consumption control module 53 is further configured to turn off the receiving power supply of the first receiving optical port according to the second control message, and reconnect the receiving power supply of the first receiving optical port after the second time is kept.
Referring to fig. 6, an embodiment of the invention provides a structural diagram of a first apparatus 600, including: a processor 601, a transceiver 602, a memory 603, and a bus interface, wherein:
in this embodiment of the present invention, the first device 600 further includes: a program stored in the memory 603 and executable on the processor 601, the program when executed by the processor 601 implementing the steps of:
detecting the idle degree of a sending buffer of a first sending optical port; and after the first control message is sent, closing the sending power supply of the first sending light port, and after the first time is kept, switching on the sending power supply of the first sending light port again.
The transceiver 602 is configured to send a first control message to a second device through the first sending optical port when the idle degree reaches a first threshold, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time.
It can be understood that, in the embodiment of the present invention, when being executed by the processor 601, the computer program can implement the processes of the data transmission method embodiment shown in fig. 2, and can achieve the same technical effects, and details are not repeated herein to avoid repetition.
In fig. 6, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 601 and various circuits of memory represented by memory 603 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 602 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.
In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:
detecting the vacancy degree of a sending cache of a first sending optical port of first equipment, wherein the first sending optical port of the first equipment is connected with a second receiving optical port of second equipment through an optical fiber;
when the idle degree reaches a first threshold, sending a first control message to second equipment through the first sending optical port, wherein the first control message is used for triggering the second receiving optical port to enter a low power consumption state and keeping a first time;
after the first control message is sent, the sending power supply of the first sending light port is closed, and after the first time is kept, the sending power supply of the first sending light port is turned on again.
When executed by the processor, the program can implement all the implementation manners in the data transmission method applied to the first device, and can achieve the same technical effect, and is not described herein again to avoid repetition.
An embodiment of the present invention provides a second device 70 shown in fig. 7, where a second receiving optical port of the second device 70 is connected to a first transmitting optical port of a first device through an optical fiber, and the second device 70 includes:
a control message receiving module, configured to receive, through a second receiving optical port, a first control message sent by a first device, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and the power consumption control module is used for closing the receiving power supply of the second receiving optical port according to the first control message and reconnecting the receiving power supply of the second receiving optical port after keeping the first time.
Optionally, the second device further includes the following modules:
a judging module, configured to judge whether a link idle energy saving function of the second receiving optical port is started after the first control message is received; under the condition that the idle link energy-saving function of the second receiving optical port is started, triggering the power consumption control module to close the receiving power supply of the second receiving optical port according to the first control message, and keeping the first time, and then switching on the receiving power supply of the second receiving optical port again; and under the condition that the idle link energy-saving function of the second receiving optical port is not started, discarding the first control message.
Optionally, the first control message is a Pause Frame, and a reserved Padding field of the Pause Frame includes a first field and a second field, where the first field is used to indicate whether the Pause Frame is a control message for triggering entry into a low power consumption state, and the second field is used to carry indication information of the first time.
Referring to fig. 8, an embodiment of the present invention provides a structural schematic diagram of a second device 800, where a second receiving optical port of the second device is connected to a first transmitting optical port of a first device through an optical fiber, and the second device 800 includes: a processor 801, a transceiver 802, a memory 803, and a bus interface, wherein:
the transceiver 802 is configured to receive a first control message sent by a first device through a second receiving optical port, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time.
In this embodiment of the present invention, the second device 800 further includes: a program stored on the memory 803 and executable on the processor 801, which when executed by the processor 801, performs the steps of:
and according to the first control message, closing the receiving power supply of the second receiving optical port, and keeping the first time, and then switching on the receiving power supply of the second receiving optical port again.
It can be understood that, in the embodiment of the present invention, when being executed by the processor 801, the computer program can implement the processes of the data transmission method embodiment shown in fig. 3, and can achieve the same technical effects, and in order to avoid repetition, the description thereof is omitted here.
In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 801, and various circuits, represented by the memory 803, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 802 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.
In some embodiments of the invention, there is also provided a computer readable storage medium having a program stored thereon, which when executed by a processor, performs the steps of:
receiving a first control message sent by first equipment through a second receiving optical port of second equipment, wherein the first control message is used for triggering the second receiving optical port to enter a low-power-consumption state and keep a first time, and the second receiving optical port of the second equipment is connected with a first sending optical port of the first equipment through an optical fiber;
and according to the first control message, closing the receiving power supply of the second receiving optical port, and keeping the first time, and then switching on the receiving power supply of the second receiving optical port again.
When executed by the processor, the program can implement all the implementation manners in the data transmission method applied to the second device, and can achieve the same technical effect, and is not described herein again to avoid repetition.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (17)
1. A data transmission method applied to a first device, a first transmitting optical port of the first device being connected to a second receiving optical port of a second device through an optical fiber, the method comprising:
detecting the idle degree of a sending buffer of a first sending optical port;
when the idle degree reaches a first threshold, sending a first control message to second equipment through the first sending optical port, wherein the first control message is used for triggering the second receiving optical port to enter a low power consumption state and keeping a first time;
after the first control message is sent, the sending power supply of the first sending light port is closed, and after the first time is kept, the sending power supply of the first sending light port is turned on again.
2. The method of claim 1, wherein after the step of re-energizing the first transmit light port for transmit power, the method further comprises:
and returning to the step of detecting the idle degree of the sending buffer of the first sending optical port.
3. The method of claim 1, wherein the step of transmitting a first control message to a second device through the first transmit optical port when the idle level reaches a first threshold comprises:
when the idle degree reaches a first threshold, determining first time corresponding to the first threshold according to a preset corresponding relation table of the threshold and the time, wherein a higher threshold corresponds to a longer time in the corresponding relation table;
generating a first control message for triggering the second receiving optical port to enter a low power consumption state, and carrying indication information of the first time in the first control message;
and transmitting the first control message through the first transmitting light port.
4. The method of claim 1, wherein the step of transmitting a first control message to a second device through the first transmit optical port when the idle level reaches a first threshold comprises:
acquiring a first service attribute of service data cached in a sending cache of the first sending optical port;
selecting a first corresponding relation table corresponding to the first service attribute from a plurality of preset corresponding relation tables according to the first service attribute, wherein the corresponding relation table stores the corresponding relation between a threshold and time;
when the idle degree reaches a first threshold, determining first time corresponding to the first threshold according to the first corresponding relation table;
generating a first control message for triggering the second receiving optical port to enter a low power consumption state, and carrying indication information of the first time in the first control message;
and transmitting the first control message through the first transmitting light port.
5. The method of claim 1, wherein prior to the step of detecting the idleness of the transmit buffer of the first transmit optical port, further comprising:
judging whether the idle energy-saving function of the link of the first sending optical port is started or not;
entering the step of detecting the idle degree of the transmission buffer of the first transmission optical port under the condition that the idle energy-saving function of the link of the first transmission optical port is started;
and under the condition that the idle energy-saving function of the link of the first sending optical port is not started, ending the process.
6. The method of claim 1,
the first control message is a Pause Frame, and a reserved Padding field of the Pause Frame includes a first field and a second field, where the first field is used to indicate whether the Pause Frame is a control message for triggering entry into a low power consumption state, and the second field is used to carry indication information of the first time.
7. A method as claimed in any one of claims 1 to 6, wherein the first receiving optical port of the first device is connected to the second transmitting optical port of the second device by an optical fibre; the method further comprises the following steps:
receiving a second control message from the first receiving optical port, wherein the second control message is used for triggering the first receiving optical port to enter a low power consumption state and keeping a second time;
and according to the second control message, closing the receiving power supply of the first receiving optical port, and after keeping the second time, switching on the receiving power supply of the first receiving optical port again.
8. A data transmission method applied to a second device, a second receiving optical port of the second device being connected to a first transmitting optical port of a first device through an optical fiber, the method comprising:
receiving a first control message sent by first equipment through a second receiving optical port, wherein the first control message is used for triggering the second receiving optical port to enter a low power consumption state and keeping a first time;
and according to the first control message, closing the receiving power supply of the second receiving optical port, and keeping the first time, and then switching on the receiving power supply of the second receiving optical port again.
9. The method of claim 8,
after receiving the first control message, the method further comprises:
judging whether the idle energy-saving function of the link of the second receiving optical port is started or not;
under the condition that the idle link energy-saving function of the second receiving optical port is started, turning off the receiving power supply of the second receiving optical port according to the first control message, and turning on the receiving power supply of the second receiving optical port again after keeping the first time;
and under the condition that the idle link energy-saving function of the second receiving optical port is not started, discarding the first control message.
10. The method of claim 8 or 9,
the first control message is a Pause Frame, and a reserved Padding field of the Pause Frame includes a first field and a second field, where the first field is used to indicate whether the Pause Frame is a control message for triggering entry into a low power consumption state, and the second field is used to carry indication information of the first time.
11. A first device having a first transmitting optical port coupled to a second receiving optical port of a second device via an optical fiber, the first device comprising:
the idle detection module is used for detecting the idle degree of the sending buffer of the first sending light port;
a control message sending module, configured to send a first control message to a second device through the first sending optical port when the idle degree reaches a first threshold, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and the power consumption control module is used for closing the transmitting power supply of the first transmitting light port after the first control message is transmitted, and reconnecting the transmitting power supply of the first transmitting light port after the first time is kept.
12. A first device having a first transmitting optical port coupled to a second receiving optical port of a second device via an optical fiber, comprising a transceiver and a processor, wherein,
the processor is used for detecting the idle degree of the sending buffer of the first sending light port; after the transceiver transmits the first control message, the transmitting power supply of the first transmitting light port is closed, and after the first time is kept, the transmitting power supply of the first transmitting light port is switched on again;
and the transceiver is configured to send a first control message to the second device through the first sending optical port when the idle degree reaches a first threshold, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time.
13. A first device having a first transmitting optical port coupled to a second receiving optical port of a second device via an optical fiber, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data transmission method according to any one of claims 1 to 7.
14. A second device having a second receiving port coupled to a first transmitting port of a first device via an optical fiber, the second device comprising:
a control message receiving module, configured to receive, through a second receiving optical port, a first control message sent by a first device, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and the power consumption control module is used for closing the receiving power supply of the second receiving optical port according to the first control message and reconnecting the receiving power supply of the second receiving optical port after keeping the first time.
15. A second device having a second receive optical port coupled to a first transmit optical port of a first device via an optical fiber, comprising a transceiver and a processor, wherein,
the transceiver is configured to receive a first control message sent by a first device through a second receiving optical port, where the first control message is used to trigger the second receiving optical port to enter a low power consumption state and keep a first time;
and the processor is used for closing the receiving power supply of the second receiving optical port according to the first control message and reconnecting the receiving power supply of the second receiving optical port after keeping the first time.
16. A second device having a second receiving port coupled to a first transmitting port of a first device via an optical fiber, comprising: processor, memory and program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the data transmission method according to any one of claims 8 to 10.
17. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the data transmission method according to one of claims 1 to 10.
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