CN106982105B - Method and apparatus for processing resilient ethernet signals - Google Patents

Abstract

The embodiment of the invention provides a method and a device for processing an elastic Ethernet signal, wherein the method comprises the following steps: acquiring at least two Flexe client signals; distributing the at least two Flexe client signals to a plurality of PCS lanes, and generating PMD lane signals according to the PCS lanes, wherein the PCS lanes are divided into at least two PCS lane groups, the at least two Flexe client signals correspond to the at least two PCS lane groups one by one, and each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PCS lane group; or the PMD lane signals correspond to at least two PMD lane groups, the at least two Flexe client signals correspond to the at least two PMD lane groups one by one, and each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PMD lane group. The processing burden of the transmission network equipment can be reduced, the processing time of the transmission network equipment is reduced, and the forwarding efficiency and the system throughput of the transmission network equipment are improved.

Description

Method and apparatus for processing resilient ethernet signals

Technical Field

The present invention relates to the field of communications, and more particularly, to a method and apparatus for processing resilient ethernet signals.

Background

At present, a communication technology is known in which a sending device and a receiving device implement signal transmission through forwarding of a transport network device, and a communication technology is known, for example, a Flexible Ethernet (FlexE) technology, in which multiple client signals (for example, signals that need to be sent to different receiving devices) are carried in a signal sent to the transport network device by the sending device, in this case, the transport network device needs to probe a Media Access Control (MAC) layer of the received signal to determine a destination MAC address of the signal, and further forward the signal according to the destination MAC address so as to accurately send each client signal to the receiving device.

However, probing the MAC layer increases the processing load of the transport network device, prolongs the processing time of the transport network device, and further affects the forwarding efficiency and system throughput of the transport network device.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for processing an elastic ethernet signal, which can reduce processing load of a transport network device, reduce processing time of the transport network device, and improve forwarding efficiency and system throughput of the transport network device.

In a first aspect, a method for processing a resilient ethernet signal is provided, the method comprising: the method comprises the steps that a sending device obtains at least two paths of elastic Ethernet Flexe client signals; the transmitting equipment distributes the at least two Flexe client signals to a plurality of physical coding sublayer channels PCS lane, and generates a physical medium related channel PMD lane signal according to the PCS lane, wherein the PCS lane is divided into at least two PCS lane groups, the at least two Flexe client signals correspond to the at least two PCS lane groups one by one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PCS lane group, each PCS lane group in the at least two PCS lane groups comprises at least one PCS lane, and one PCS lane only belongs to one PCS lane group; or the PMD lane signal corresponds to at least two PMD lane groups, the at least two FlexE client signals correspond to the at least two PMD lane groups one to one, each FlexE client signal in the at least two FlexE client signals is distributed to the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups includes at least one PMD lane, and one PMD lane only belongs to one PMD lane group.

According to the method for processing the elastic Ethernet signals, the transmitting equipment distributes the at least two Flexe client signals to the at least two PCS lane groups or PMD lane groups, and the transmitting network equipment can distinguish the at least two Flexe client signals according to the PCS lane groups or PMD lane groups corresponding to the received signals, so that the transmitting network equipment can accurately transmit the at least two Flexe client signals to the receiving end equipment under the condition of not detecting the received signals through an MAC layer, the processing load of the transmitting network equipment can be relieved, the processing time of the transmitting network equipment is shortened, and the forwarding efficiency and the system throughput of the transmitting network equipment are improved.

With reference to the first aspect, in a first implementation manner of the first aspect, the allocating, by the sending device, the at least two FlexE client signals to multiple PCS lanes, and generating PMD lane signals according to the multiple PCS lanes includes: the sending equipment determines the number of PCS lanes included in each PCS lane group of at least two PCLANe groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and distributes each Flexe client signal to the PCS lanes in the corresponding PCS lane group; the sending equipment determines the number of PMD lanes included in one PMD lane group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and each PCS lane in the at least two PCS lane groups is adapted to the PMD lane in the PMD lane group so as to generate a PMD lane signal.

With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, the allocating, by the sending device, the at least two FlexE client signals to a plurality of PCS lanes, and generating PMD lane signals according to the plurality of PCS lanes includes: the sending equipment determines the number of PCS lane contained in each PCS lane group of at least two PCS lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and distributes each Flexe client signal to the PCS lane in the corresponding PCS lane group; the sending equipment determines the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapts the PCS lane in the PCS lane group corresponding to each Flexe client signal to the PMD lane in the PMD lane group corresponding to the same Flexe client signal so as to generate the PMD lane signal.

With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the allocating, by the sending device, the at least two FlexE client signals to multiple PCS lanes, and generating a PMD lane signal according to the multiple PCS lanes includes: the sending equipment determines the number of PCS lanes included in one PCSLane group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals and distributes the at least two Flexe client signals to the PCS lanes in the PCSLane group; the sending equipment determines the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapts the bit block in the PCS lane group corresponding to each Flexe client signal to the PMD lane in the PMD lane group corresponding to the same Flexe client signal so as to generate the PMD lane signal.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a fourth implementation manner of the first aspect, when the plurality of PCS lanes are divided into at least two PCS lane groups, in the process of distributing the at least two FlexE client signals to the plurality of PCS lanes, the method further includes: the transmitting device performs encoding processing on the alignment mark AM corresponding to each PCS lane based on the same encoding method.

According to the method for processing the elastic Ethernet signal, the AM in each path of signal is coded by using the same coding mode, so that the processing process can be simplified, and the efficiency of the method for processing the elastic Ethernet signal can be improved.

In a second aspect, a method of processing a resilient ethernet client signal is provided, the method comprising: the method comprises the steps that receiving equipment obtains a PMD lane signal of a physical medium related channel, the PMD lane signal corresponds to at least two PMD lane groups, the at least two PMD lane groups correspond to at least two elastic Ethernet Flexe client signals one to one, each Flexe client signal in the at least two Flexe client signals is borne by the corresponding PMD lane group, each PMDLane group in the at least two PMD lane groups comprises at least one PMD lane, and one PMD lane only belongs to one PMD lane group; the receiving equipment determines at least two physical coding sublayer channel PCS lane groups according to the at least two PMD lane groups, wherein the at least two PMD lane groups correspond to the at least two PCS lane groups one by one, each PCS lane group in the at least two PCS lane groups comprises at least one PCS lane, and one PCS lane only belongs to one PMD lane group; the receiving equipment adapts each PMD lane in each PMD lane group to each PCS lane in the corresponding PCS lane group; and the receiving equipment recovers the at least two Flexe client signals according to the at least two PCSANE groups.

According to the method for processing the elastic Ethernet signal, the receiving equipment adapts at least two PMD lane groups to at least two PCS lane groups, and the flexE client signals carried in the PMD lane groups are respectively recovered in the PCS lane groups, so that the receiving equipment can receive the flexE client signals from different sending equipment in the same time period, and the system throughput can be improved.

With reference to the second aspect, in a first implementation manner of the second aspect, the recovering, by the receiving device, the at least two FlexE client signals according to the at least two pcslanes includes: the receiving end equipment acquires a coding mode used when the sending end equipment of a first Flexe client signal codes an alignment mark AM corresponding to the first Flexe client signal, wherein the first Flexe client signal corresponds to a first PMD lane group; and the receiving end equipment recovers the first Flexe client signal according to the coding mode and a first PCS lane group, wherein the first PCS lane group corresponds to the first PMDlane group.

In a third aspect, a method of processing resilient ethernet client signals is provided, the method comprising: the method comprises the steps that a transmitting network device receives a physical medium related channel PMD lane signal sent by a sending device, wherein the PMD lane signal is generated by the sending device according to a plurality of physical coding sublayer channels PCS lanes after the sending device distributes at least two Flexe client signals to the PCS lanes; when the PMD lane signal corresponds to at least two PCS lane groups, the transport network device performs encapsulation processing on the signal according to the at least two PCS lane groups to generate at least two optical channel data unit ODU groups, where the at least two PCS lane groups correspond to the at least two ODU groups one to one, each ODU group of the at least two ODU groups includes at least one ODU, and an ODU belongs to only one ODU group;

when the PMD lane signal corresponds to at least two PMD lane groups, the transport network device encapsulates the signal according to the at least two PMDlane groups to generate at least two optical channel data unit ODU groups, where the at least two PMD lane groups correspond to the at least two ODU groups one to one, each ODU group of the at least two ODU groups includes at least one ODU, and an ODU belongs to only one ODU group.

In a fourth aspect, an apparatus for processing a resilient ethernet client signal is provided, which includes means for performing the steps in the first aspect and the implementations of the first aspect.

In a fifth aspect, an apparatus for processing a resilient ethernet client signal is provided, which includes means for performing the steps in the implementations of the second and first aspects.

In a sixth aspect, an apparatus for processing a resilient ethernet client signal is provided, which includes means for performing the steps in the third aspect and the implementations of the first aspect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an example of a communication system to which the method and apparatus for processing resilient ethernet signals according to the embodiments of the present invention are applied.

Fig. 2 is a schematic diagram of an example of an apparatus to which the method for processing a resilient ethernet signal according to the embodiment of the present invention is applied.

Fig. 3 is a schematic diagram of another example of an apparatus to which the method for processing a resilient ethernet signal according to the embodiment of the present invention is applied.

Fig. 4 is a schematic diagram of another example of an apparatus to which the method for processing a resilient ethernet signal according to the embodiment of the present invention is applied.

Fig. 5 is a schematic diagram of an interaction process of a method of processing a resilient ethernet signal according to an embodiment of the present invention.

Fig. 6 is a schematic diagram of a bit block distribution process of a transmitting device according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a bit block distribution process of a receiving device according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a structure of an AM according to an embodiment of the present invention.

Fig. 9 is a schematic diagram of an AM encoding method according to an embodiment of the present invention.

Fig. 10 is a schematic diagram of an AM encoding method according to another embodiment of the present invention.

Fig. 11 is a schematic diagram of an interactive process of a method of processing a resilient ethernet signal according to another embodiment of the present invention.

Fig. 12 is a schematic diagram of a bit block distribution process of a transmitting device according to another embodiment of the present invention.

Fig. 13 is a schematic diagram of a bit block distribution process of a receiving apparatus according to another embodiment of the present invention.

Fig. 14 is a schematic structural diagram of an apparatus for processing a resilient ethernet signal according to an embodiment of the present invention.

Fig. 15 is a schematic structural diagram of an apparatus for processing a resilient ethernet signal according to another embodiment of the present invention.

Fig. 16 is a schematic structural diagram of an apparatus for processing a resilient ethernet signal according to still another embodiment of the present invention.

Fig. 17 is a schematic structural diagram of an apparatus for processing a resilient ethernet signal according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First, the architecture of a communication system to which the method and apparatus for processing a resilient ethernet signal according to the embodiment of the present invention are applied, and the functions and structures of each device in the communication system will be described with reference to fig. 1. Fig. 1 is a schematic block diagram illustrating an example of a communication system to which the method and apparatus for processing a resilient ethernet signal according to the embodiment of the present invention are applied.

In an embodiment of the present invention, the communication system includes at least three communication devices, for example, as shown in fig. 1, the communication system may include a communication device 110, a communication device 120, and a communication device 130.

Also, in the embodiment of the present invention, the communication device 110, the communication device 120, and the communication device 130 communicate with each other through a transport network.

By way of example and not limitation, in the embodiment of the present invention, the Transport Network may be, for example, a Wavelength Division Multiplexing (WDM), an Optical Transport Network (OTN), or the like.

In the embodiment of the present invention, the transport network may include a plurality of transport network devices, for example, as shown in fig. 1, the communication system may include a transport network device 111, a transport network device 121, and a transport network device 131.

As shown in fig. 1, the transport network device 111 is communicatively connected to the communication device 110, and hereinafter, a signal transmission process between the communication devices will be described by taking an interaction between the transport network device 111 and the communication device 110 as an example without loss of generality.

Specifically, when the communication device 110 sends a signal to another communication device (e.g., the communication device 120 or the communication device 130, etc.), the communication device 110 may generate a signal and transmit the signal to the transmission network device 111, so that the transmission network device 111 may process (e.g., encapsulate) the signal to convert the signal into a signal capable of being transmitted in a transmission network and transmit the signal to another transmission network device in the transmission network for transmitting the signal to a destination receiving device of the signal.

In addition, the transport network device 111 may also receive a signal that needs to be sent to the communication device 110 from another transport network device or a communication device, and may process (e.g., decapsulate) the signal to convert the signal into a signal that can be recognized by the transport network device 111, and transmit the processed signal to the communication device 110, so that the communication device 110 may parse the received signal to obtain data carried in the signal.

The functions of the other communication devices are similar to those of the communication device 110, and the functions of the other transmission network devices are similar to those of the transmission network device 111, and thus, detailed descriptions thereof are omitted or omitted herein in order to avoid redundancy.

In addition, in the embodiment of the present invention, a signal transmitted between any two communication devices may be processed and forwarded by one transport network device, or may be processed and forwarded by a plurality of transport network devices, which is not particularly limited in the present invention.

It should be understood that the number of communication devices and transport network devices shown in fig. 1 is merely an example, and the present invention is not particularly limited.

By way of example, and not limitation, in embodiments of the invention, the communication device may be a client device, such as a personal computer, capable of communicating via a medium such as ethernet or fiber optic.

In the embodiment of the present invention, the Communication device may also be a network device, and the network device may be a server that provides various services for the user equipment, for example, an SDN server, a Web server, a File Transfer Protocol (FTP) server, an enterprise critical application server, and other critical task servers (e.g., a server that provides a firewall Service), a Service processing board (SPU) in the Communication Technology field, and the like; the communication device may also be a switch, a router in an Internet Protocol (IP) communication network, or a storage device in a storage network, etc.

By way of example and not limitation, in embodiments of the present invention, the transport network device may be a WDM, OTN, or the like device.

In the embodiment of the present invention, the communication device may be a transmitting end (i.e., a transmitting device) of a signal, or may be a receiving end (i.e., a receiving device) of a signal. The structure and function of each device involved in the transmission process for processing resilient ethernet signals according to the present invention will be described in detail with reference to fig. 2 to 4.

A. Transmitting apparatus

Fig. 2 is a schematic diagram of an example of a transmitting device 200 (for example, the communication device) to which the method for processing a resilient ethernet signal according to the embodiment of the present invention is applied, and as shown in fig. 2, the transmitting device 200 includes:

the control module 210 is configured to calculate a PCS lane (or input lane of the PMA module) and a PMD lane occupied by each of the FlexE client signals according to the number and bandwidth of the FlexE client signals to be generated and the currently available PMD lane, for example, the number and bandwidth of optical channels (optical lanes), generate indication information for instructing each MAC sending module to generate the FlexE client signals, generate indication information for instructing the FlexE and PCS lane distribution modules to distribute bit blocks (or PCS lane distribution), and generate indication information for instructing the PMA modules to insert bits (or pmdlan distribution), and send the indication information to the corresponding modules.

A plurality of (at least two) MAC transmission modules 220: the FlexE client signal processing module is configured to generate a plurality of FlexE client signals (in this case, the FlexE client signals may be MAC layer signals, MAC layer data, or ethernet messages) according to indication information (for example, bandwidth of signals that need to be generated may be indicated) from the control module, and send the FlexE client signals to the FlexE and PCS lane distribution modules. It should be noted that, in the embodiment of the present invention, one MAC sending module may generate one FlexE client signal, that is, a FlexE and PCS lane distribution module described later may distinguish a plurality of FlexE client signals according to the MAC sending module from which each FlexE client signal comes, and functions and specific processing procedures of each MAC sending module may be similar to those of the prior art, and the present invention is not particularly limited. It should be noted that the FlexE client signal may refer to ethernet flow (ethernet), and in the present invention, the FlexE client signal may be all signals using FlexE as a service layer, for example, ethernet flow, Synchronous Digital Hierarchy (SDH) signal, OTN signal, fibre channel (fibre channel) signal in a storage network, and the like. Therefore, in this embodiment, the MAC sending module or the MAC receiving module is only an example and is not limited, and they may also be sending modules or receiving modules of other client signals.

The FlexE and PCS lane distribution module 230 is configured to perform bit block encoding, bit block splitting, FlexE overhead insertion, bit block distribution, and Alignment mark insertion (AM) on the input data (i.e., the FlexE client signal) according to instruction information (e.g., a PCS lane corresponding to each FlexE client signal) from the control module. Wherein, the bit block distribution (indicated by the indication information from the control module) can realize the following functions: bit blocks (or data blocks) of one path of Flexe client layer signals need to be distributed to a determined PMD lane group (comprising at least one PMD lane), and one PMD lane group cannot contain bit blocks corresponding to a plurality of paths of Flexe client signals. Or, the bit blocks of one FlexE client layer signal need to be distributed to certain PCS lane groups (including at least one PCS lane), and one PCS lane group cannot contain the bit blocks corresponding to multiple FlexE client signals.

A Physical Medium Attachment (PMA) module 240, configured to adjust (or adapt) the input PCS lane to the output PMDlane in a bit interleaving manner according to indication information (e.g., the PMD lane corresponding to each FlexE client signal, or the PMD lane to which each PCS lane needs to be adapted) from the control module. Wherein the adjustment has the following requirements: bit blocks (or data blocks) of one path of Flexe client layer signal need to be distributed to certain PMD lanes, and one PMD lane cannot contain bit blocks corresponding to multiple paths of Flexe client signals.

A transmitting module 250 to process (e.g., electro-optical convert) the signal from the PMA module 240 to generate a transmit signal (e.g., an optical signal).

It should be understood that the above-listed structure of the sending device is only an exemplary illustration, and the present invention is not limited thereto as long as the sending device can realize the functions provided by the above-mentioned modules.

In addition, the transmission signal generated as described above needs to be transmitted to a plurality of receiving devices (one-to-one correspondence with the plurality of FlexE client layer signals described above) via the transport network. Without loss of generality, fig. 2 also shows an example of the structure of one of the receiving devices 400. The following describes the process of the sending device performing the above signal processing in the detailed description of the method 500 for processing a resilient ethernet signal according to the embodiment of the present invention.

As shown in fig. 2, the receiving apparatus 400 may include:

the receiving module 410 is configured to receive a signal (e.g., an optical signal) transmitted by the transmitting apparatus 200 via the transmission network, and may perform, for example, an optical-to-electrical conversion process on the signal to obtain a received signal corresponding to one or more PMD lanes.

And the PMA module 420 is used for adjusting the PMD lanes to PCS lanes in a bit interleaving mode.

And a FlexE and PCS lane reordering module 430, configured to reorder pclan according to the size of the PCS lane serial number corresponding to the AM, extract FlexE overhead, and perform bit block decoding, so as to recover a FlexE client signal. It should be noted that, since the PCS lane number corresponding to the AM in the received signal may not start from the PCS lane 0, the FlexE and PCS lane rearrangement module 430 only needs to sort the PCS lane numbers.

And a MAC receiving module 440 for decapsulating the FlexE client signal.

It should be understood that the number of the receiving devices 400 shown in fig. 2 is only an exemplary illustration, and the present invention is not particularly limited.

B. Transmitting terminal transmission network equipment

The transmitting end transport network device may serve as an interface of the transport network to the transmitting device.

Fig. 3 is a schematic diagram of an example of a transmitting-end transport network device 300 to which the method for processing an elastic ethernet signal according to the embodiment of the present invention is applied, and as shown in fig. 3, the transmitting-end transport network device 300 includes:

the receiving module 310 is configured to receive the transmitting signal sent by the sending device, and may process (e.g., perform optical-to-electrical conversion) the transmitting signal to obtain a receiving signal, where the receiving signal includes a component corresponding to each FlexE client signal.

The ODU encapsulation module 320 encapsulates, based on the PMD lane or the PCS lane corresponding to each component (or each FlexE client signal) in the received signal, each component to generate a plurality of optical channel Data Unit (ODU) groups (each ODU group includes at least one ODU), where the encapsulation process has the following requirements: ODUs in an ODU group cannot be encapsulated into components corresponding to multiple FlexE client signals.

In addition, the sending-end Transport network device 300 may further include an ODU cross module, an Optical channel Transport Unit (OTU) encapsulation module, a line-side sending module, and the like, and through processing of the modules, each ODU may be converted into a signal that can be transmitted in the Transport network, and functions and a processing procedure of the modules may be similar to those in the prior art, and here, detailed descriptions thereof are omitted to avoid redundancy.

It should be understood that the structure of the transmitting-side transport network device listed above is only an exemplary illustration, and the present invention is not limited thereto, for example, the transmitting-side transport network device may also be a device that performs optical layer cross-scheduling at an optical lane (i.e., an example of PMD lane) granularity, in which case the transmitting-side transport network device may be an optical cross-connect (OXC) device based on a Micro-Electro-Mechanical System (MEMS) or a Liquid Crystal On Silicon (LCOS).

In addition, in the embodiment of the present invention, a signal transmitted between a sending device and a receiving device may be forwarded through one transmission device (for example, the sending-end transmission device) in a transmission network, or may be forwarded through a plurality of transmission devices (including the sending-end transmission device) in the transmission network, for example, a receiving-end transmission network device may be further configured in the transmission network, as an interface facing the receiving device, and by way of example and without limitation, the receiving-end transmission network device may include a line-side receiving module, an OTU decapsulating module, an ODU crossing module, and a sending module, converts the signal transmitted in the transmission network into a signal that can be recognized by the receiving device, and sends the signal to the receiving device, and each ODU converts into a signal that can be transmitted in the transmission network, and functions and processing procedures of the modules, may be similar to the prior art, and a detailed description thereof will be omitted herein in order to avoid redundancy.

C. Receiving apparatus

Fig. 4 is a schematic diagram of an example of a receiving device 500 (e.g., the communication device) to which the method for processing a resilient ethernet signal according to the embodiment of the present invention is applied, where the receiving device 500 can receive signals from a plurality of transmitting devices in the same time period as shown in fig. 4, and the receiving device 500 includes:

the control module 510 is configured to generate, according to a PMD lane (e.g., optical lane) corresponding to the received signal, indication information of a bit interleaving manner (or PCS lane allocation manner) of the PMA module and indication information indicating a PCS lane rearrangement manner of the FlexE and pclane distribution modules, and send the indication information to the corresponding modules.

A receiving module 520, configured to receive the transmission signals sent from the multiple sending devices, and process (e.g., perform photoelectric conversion) the transmission signals to obtain a receiving signal, where the receiving signal includes a component corresponding to each PMD lane.

The PMA module 530 is configured to adjust (or adapt) the input PMD lane to the output pclan in a bit interleaving manner according to the indication information (e.g., the PCS lane to which each PMD lane needs to be adapted) from the control module. Wherein the adjustment has the following requirements: bit blocks (or data blocks) of one FlexE client layer signal need to be distributed to certain PCS lane groups (including at least one PCS lane), and a PCS lane in one PCS lane group cannot contain bit blocks corresponding to multiple FlexE client signals.

And a FlexE and PCS lane rearrangement module 540, configured to rearrange each PCS lane according to the number of the PMD lane and the size of the PMD lane serial number corresponding to the AM, extract FlexE overhead, and perform bit block decoding, so as to obtain a FlexE client signal from each sending device.

And a MAC receiving module 550 for decapsulating the FlexE client signal.

It should be noted that the functions of the sending device shown in fig. 4 and the specific process of generating the transmission signal may be similar to those of the prior art, or may be similar to those of the sending device shown in fig. 2, and the present invention is not particularly limited. The number of transmitting devices shown in fig. 4 is merely an exemplary illustration, and the present invention is not particularly limited.

It should be understood that the above-listed structure of the receiving device is only an exemplary illustration, and the present invention is not limited thereto as long as the receiving device can realize the functions provided by the above-mentioned modules. The following describes the process of the receiving device performing the above signal processing in the detailed description of the method 700 for processing a resilient ethernet signal according to the embodiment of the present invention.

The following describes in detail an interaction procedure of the method for processing an elastic ethernet signal executed in the sending device according to the embodiment of the present invention with reference to fig. 5 to 13.

Fig. 5 is a schematic diagram of an interaction process of a method 500 of processing resilient ethernet client signals according to an embodiment of the present invention. Hereinafter, for convenience of understanding and explanation, a specific procedure of the method for processing the resilient ethernet client signal according to the embodiment of the present invention will be described in detail by taking as an example a procedure in which the communication device 110 transmits data to both the communication device 120 and the communication device 130 via the transport network device 111.

As shown in fig. 5, on the transmitting device side, the method 500 includes:

the method comprises the steps that a sending device obtains at least two paths of elastic Ethernet Flexe client signals;

the sending equipment distributes the at least two Flexe client signals to a plurality of physical coding sublayer channels PCSLane and generates a physical medium related channel PMD lane signal according to the plurality of PCSLane, wherein

The plurality of PCS lane are divided into at least two PCS lane groups, the at least two Flexe client signals correspond to the at least two PCS lane groups one by one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PCS lane group, each PCS lane group in the at least two PCS lane groups comprises at least one PCS lane, and one PCS lane only belongs to one PCS lane group; or

The PMD lane signal corresponds to at least two PMD lane groups, the at least two Flexe client signals correspond to the at least two PMD lane groups one to one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups comprises at least one PMD lane, and one PMD lane only belongs to one PMD lane group.

Specifically, as shown in fig. 5, the communication device 110 (e.g., the MAC sending module of the communication device 110) may obtain the FlexE client signal (i.e., one example of one of the at least two FlexE client signals, hereinafter, referred to as FlexE client signal # a for ease of understanding and explanation) to be sent to the communication device 120 and the FlexE client signal (i.e., another example of one of the at least two FlexE client signals, hereinafter, referred to as FlexE client signal # B for ease of understanding and explanation) to be sent to the communication device 130.

By way of example and not limitation, in the embodiment of the present invention, the FlexE client signal # a and the FlexE client signal # B may be MAC layer data obtained after MAC layer encapsulation processing (for example, the MAC sending module 220 described above), and a method and a procedure of the MAC layer encapsulation processing may be similar to those in the prior art, and a detailed description thereof is omitted here for avoiding redundancy. It should be noted that the FlexE client signal may be Ethernet flow, and in the present invention, the FlexE client signal may be all signals using FlexE as a service layer, for example, Ethernet flow may be used, and also may be SDH signal, OTN signal, Fiberchannel signal in a storage network, and the like. Therefore, in this embodiment, the MAC sending module or the MAC receiving module is only an example and is not limited, and they may also be sending modules or receiving modules of other client signals.

It should be noted that, in the embodiment of the present invention, the communication device 120 may be a final receiving device of the FlexE client signal # a, in this case, for example, the communication device 110 may determine, through the destination MAC address of the FlexE client signal # a, that the FlexE client signal # a needs to be sent to the communication device 120; alternatively, in the embodiment of the present invention, the communication device 120 may be a forwarding communication device for the FlexE client signal # a (or the communication device 120 is the next hop in the transmission path (excluding devices in the transport network) of the FlexE client signal # a), in which case, for example, the communication device 110 may determine that the FlexE client signal # a needs to be sent to the communication device 120 based on a routing table or the like.

Similarly, the communication device 110 determines that a FlexE client signal # B needs to be sent to the communication device 130.

It should be understood that the above-listed method for determining the receiving end device of each FlexE client signal by the communication device 110 is only an exemplary one, and the present invention is not limited thereto, and other methods capable of determining the receiving end device of each FlexE client signal (or distinguishing each FlexE client signal based on the communication device to be sent) are within the scope of the present invention. For example, and not by way of limitation, communication device 110 may complete the configuration of at least two MAC transmit modules based on the number and bandwidth of MAC layer data. Specifically, in the embodiment of the present invention, the FlexE client signal # a and the FlexE client signal # B may be generated by different MAC layer modules configured in the communication device 110.

As shown in fig. 5, after acquiring the FlexE client signal # a and the FlexE client signal # B, the communication device 110 may perform a physical layer encapsulation process on the FlexE client signal # a and the FlexE client signal # B.

By way of example and not limitation, in embodiments of the present invention, the physical layer mainly includes: a coordination Sublayer (RS), a Physical Coding Sublayer (PCS), a Forward Error Correction (FEC) layer, a Physical Medium Attachment (PMA) layer, and a Physical Medium Dependent (PMD) layer.

The RS is used for converting serial data of The MAC layer and a parallel interface of The PCS (The RS adaptation protocol of The MAC to The parallel format of The PCS service interface). By way of example and not limitation, the RS may convert data from the MAC layer (i.e., the FlexE client signal) into Interface data of a 40G Media Independent Interface (XLGMII, 40 Gigabit Media Independent Interface) or a 100G Media Independent Interface (cgmiii, 100 Gigabit Media Independent Interface) and implement the inverse thereof. Here, the processing method and procedure of the RS may be similar to those of the prior art, and here, detailed description thereof is omitted for avoiding redundancy.

The PCS mainly completes physical layer encoding and decoding. For example, after receiving data from the RS, the PCS divides the data in units of 64 bits (bits), and adds a 2-bit synchronization Header (Sync Header) to the data to form a 66-bit block. The synchronization header is "01" to indicate a data block, and the synchronization header is "10" to indicate a control block; cutting into blocks and then scrambling (the synchronous head does not need scrambling); and distributing the 66bit blocks after scrambling to each physical coding Sublayer channel (PCS lane) in turn so as to form a Multi-lane (Multi-lane) structure.

The FEC layer mainly implements a correction process of the bit error. Here, the FEC layer processing method and procedure may be similar to those of the prior art, and a detailed description thereof is omitted here for avoiding redundancy.

The PMA layer is mainly used for realizing PCS to connect various physical media, and the main functions comprise: the PCS lane is adapted to PMDlane, PMDlane number conversion, data clock conversion and the like.

The PMD layer is mainly used to define the parameters of the physical interface connecting the transmission medium. Such as the optical signal wavelength of the optical interface, the type of fiber connected, the transmission distance, etc.

In the embodiment of the present invention, the data of the at least two FlexE client signals may be allocated to the at least two PCS lane groups at the PCS, or the data of the at least two FlexE client signals may be allocated to the PMD lane groups at the PMA layer, so that the transport network device may distinguish the at least two FlexE client signals according to the PCS lane group or the PMD lane group to which the received signals correspond.

That is, one PCS lane group may carry only data of one FlexE client signal, and one PMD lane group may carry only data of one FlexE client signal (i.e., case 1), or one PCS lane group may carry only data of one FlexE client signal, and one PMD lane group may carry data of multiple FlexE client signals (i.e., case 2), or one PCS lane group may carry data of multiple FlexE client signals, and one PMD lane group may carry only data of one FlexE client signal (i.e., case 3).

Next, the operation in each of the above three cases will be described in detail.

Case 1

Optionally, the allocating, by the sending device, the at least two FlexE client signals to a plurality of PCS lanes, and generating PMD lane signals according to the plurality of PCS lanes, includes:

the sending equipment determines the number of PCS lanes included in each PCS lane group of at least two PCS lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and distributes each Flexe client signal to the PCS lanes in the corresponding PCS lane group;

the sending equipment determines the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapts the PCS lane in the PCS lane group corresponding to each Flexe client signal to the PMD lane in the PMD lane group corresponding to the same Flexe client signal so as to generate the PMD lane signal.

Specifically, in the embodiment of the present invention, the communication device 110 (e.g., a control module of the communication device 110) may allocate PCS lane groups to each FlexE client signal according to the number of FlexE client signals and the bandwidth requirement (or the size of the data amount) of each FlexE client signal, where one PCS lane group includes at least one PCS lane, and one PCS lane group is allocated to only one FlexE client signal, that is, different FlexE client signals are not allocated to the same PCS lane group, nor are they allocated to the same PCS lane.

Without loss of generality, the communication device 110 may allocate a PCS lane group of one or more PCS lanes to the FlexE client signal # a (hereinafter, referred to as PCS lane group # a for ease of understanding and distinction) according to the bandwidth requirement (or, the size of the data amount) of the FlexE client signal # a, and allocate a PCS lane group of one or more PCS lanes to the FlexE client signal # B according to the bandwidth requirement of the FlexE client signal # B (hereinafter, referred to as PCS lane group # B for ease of understanding and distinction). Of these, the PCS lane group # a is assigned only to the FlexE client signal # a, and the PCS lane group # B is assigned only to the FlexE client signal # B.

In this embodiment of the present invention, the communication device 110 may negotiate with the transmission network device to determine the PCS lane group # a and the pclane group # B (i.e., manner 1), or the communication device 110 may also determine the PCS lane group # a and the PCS lane group # B (i.e., manner 2) based on a first mapping relationship preset in the communication device 110 and the transmission network device, and the specific procedures of the manner 1 and the manner 2 are described in detail below.

Mode 1

The communication device 110 may determine PCS lane group # a and PCS lane group # B under conditions that ensure that one PCS lane group corresponds to only one receiving device, for example, based on the bandwidths of the FlexE client signal # a and the FlexE client signal # B, and the currently available PCS lane.

In this case, the method further includes:

the first sending device sends first control information to the transmission network device, wherein the first control information is used for indicating the receiving device corresponding to each PCS lane.

Specifically, the communication device 110 may transmit information (i.e., an example of the first control information) indicating that the PCS lane group # a is assigned to the FlexE client signal # a (i.e., a signal that needs to be transmitted to the communication device 120) and the PCS lane group # B is assigned to the FlexE client signal # B (i.e., a signal that needs to be transmitted to the communication device 130) to the transport network device 111.

Thus, the transport network apparatus 111 can determine, based on the first control information, that a signal corresponding to the PCS lane group # a (i.e., the physical layer processed FlexE client signal # a) needs to be transmitted to the communication apparatus 120 (or the transport network apparatus 121), and that a signal corresponding to the PCS lane group # B (i.e., the physical layer processed FlexE client signal # B) needs to be transmitted to the communication apparatus 130 (or the transport network apparatus 131).

By negotiating the receiving device corresponding to each PCS lane between the communication device 110 and the transmission network device 111, it is possible to flexibly cope with the transmission of data with different bandwidth requirements, and thus it is possible to improve the practicality and reliability of the method of processing a flexible ethernet signal of the present invention.

Mode 2

Optionally, the sending device distributes the at least two FlexE client signals to a plurality of PCS lanes, including:

the sending device allocates a PCS lane group to each path of Flexe client signal according to first mapping relation information and receiving devices of each path of Flexe client signal, wherein the first mapping relation information is preset in the sending end device and the transmission network device, and the first mapping relation information is used for indicating communication devices corresponding to each PCS lane.

Specifically, in the embodiment of the present invention, information (i.e., an example of the first mapping relationship information) for recording the mapping relationship between each communication device and each PCS lane may be stored in the communication device 110 and the transmission network device 111, where the mapping relationship between each communication device and each PCS lane may indicate that each PCS lane is uniquely allocated to the communication device, that is, one PCS lane only carries data of one FlexE client signal.

Thus, the communication device 110 may determine the PCS lane(s) corresponding to the communication device 120 based on the first mapping, and may determine the PCS lane group # a from the PCS lanes corresponding to the communication device 120, for example, according to the bandwidth requirement of the FlexE client signal # a. Similarly, the communication device 110 may determine the PCS lane(s) corresponding to the communication device 130 based on the first mapping, and may determine the PCS lane group # B from the PCS lanes corresponding to the communication device 130, e.g., based on the bandwidth requirements of the FlexE client signal # B.

Further, the transport network apparatus 111 may determine, based on the first mapping, that data corresponding to the PCS lane group # a (i.e., the physical layer processed FlexE client signal # a) needs to be transmitted to the communication apparatus 120 (or the transport network apparatus 121), and determine that data corresponding to the PCS lane group # B (i.e., the physical layer processed FlexE client signal # B) needs to be transmitted to the communication apparatus 130 (or the transport network apparatus 131).

By determining the receiving device corresponding to each PCS lane based on the first mapping information, the communication device 110 and the transmission network device 111 do not need to perform a process of negotiating the receiving device corresponding to each PCS lane group between the communication device 110 and the transmission network device 111, thereby simplifying a communication flow and saving system communication resources.

After determining the PCS lane group corresponding to the data of each FlexE client signal as described above, the communication device 110 (e.g., FlexE and PCS lane distribution module of the communication device 110) may distribute the FlexE client signal # a processed by the RS to each PCS lane in the PCS lane group # a, and the communication device 110 may distribute the FlexE client signal # B processed by the RS to each PCS lane in the PCS lane group # B.

Therein, the communication device 110 may insert a 66-bit Alignment Mark (AM) every 16383 66-bit blocks in the data lane of each FlexE client signal.

The main function of the AM is to identify the serial number of the PCS lane, and specifically, when the ethernet with the Multi-lane structure is transmitted between chips or devices, multiple Physical lanes (Physical lanes) are usually used for transmission, different transmission delays of the Physical lanes may cause the PCS lane recovered during reception to be out of order, and after the AM is added, the receiving device may reorder the PCS lane according to the AM identification, thereby recovering correct data.

For example, in a Multi-channel Distribution (MLD) mechanism, virtual channel processing, multiple channels of an inter-chip interface, and multiple channels of an optical fiber connection, delay (skew) between the channels is inevitably introduced, and if no processing is performed on the delay between the channels, an error of data reassembly occurs when a PCS receiving end recovers Multi-channel data. However, the only thing that is disordered is the order of the channels, and the order of the data transmitted in each channel is not wrong. If the data is to be recovered correctly at the receiving end, an AM should be added to the PCS lane at the sending end to identify which channel the channel data should belong to. And (3) according to the AM as a channel data starting mark, the cache can be used for realizing the alignment processing (for eliminating time delay) of the channel data. After the data alignment, the channel data is sent to the original channel through the identifier of the channel data attribution by the AM, and the channel rearrangement is realized.

Since AM is unscrambled, AM requires special encoding to achieve dc balance (i.e., equal numbers of "0" and "1") and to avoid more distributions of "0" or "1" (to avoid loss of lock on the receiving-side clock lock circuit).

Fig. 8 is a schematic diagram showing a structure of an AM according to an embodiment of the present invention, in which 10 syncs a header. M0 to M2 are AM codes and indicate PCS lane numbers (PCS lane numbers). BIP3 is used to perform a BIP (bit interleaved parity) check (i.e., an example of an error check). M4-M6 are the inverses of M0-M2, and BIP7 is the inverses of BIP 3.

In the embodiment of the present invention, different encoding modes (or encoding rules) may be used for the AM according to the bit rate requirements of different data.

For example, when the bit rate is 40Gb/s, the AM encoding method shown in FIG. 9 can be used.

For example, when the bit rate is 100Gb/s, the AM encoding method shown in FIG. 10 can be used.

Optionally, when the plurality of PCS lanes are divided into at least two PCS lane groups, in distributing the at least two FlexE client signals to the plurality of PCS lanes, the method further comprises:

the transmitting device performs encoding processing on the alignment mark AM corresponding to each PCS lane based on the same encoding method.

Specifically, in the embodiment of the present invention, the same AM encoding method may be used to encode the AM in the FlexE client signal # a and the FlexE client signal # B, which can simplify the processing procedure, thereby improving the efficiency of the method for processing the flexible ethernet signal according to the present invention.

In this embodiment of the present invention, the communication device 110 (for example, a control module of the communication device 110) may allocate PMD lane groups to each FlexE client signal according to the number of FlexE client signals and the bandwidth requirement (or the size of the data amount) of each FlexE client signal, where one PMD lane group includes at least one PMD lane, and one PMD lane group is allocated to only one FlexE client signal, that is, different FlexE client signals are not allocated to the same PMDlane group, nor are they allocated to the same PMD lane.

Without loss of generality, the communication device 110 may allocate a PMD lane group consisting of one or more PMD lanes to the FlexE client signal # a according to the bandwidth requirement (or the size of the data amount) of the FlexE client signal # a (hereinafter, for ease of understanding and distinction, referred to as PMD lane group # a), and allocate a PMD lane group consisting of one or more PMD lanes to the FlexE client signal # B according to the bandwidth requirement of the FlexE client signal # B (hereinafter, for ease of understanding and distinction, referred to as PMDlane group # B). Of these, PMD lane group # a is assigned only to the FlexE client signal # a, and PMD lane group # B is assigned only to the FlexE client signal # B.

In the embodiment of the present invention, the communication device 110 may negotiate with the transmission network device to determine the PMD lane group # a and the PMDlane group # B (i.e., manner 3), or the communication device 110 may also determine the PMD lane group # a and the PMD lane group # B (i.e., manner 4) based on a second mapping relationship preset in the communication device 110 and the transmission network device, and the specific procedures of the manners 3 and 4 are described in detail below.

Mode 3

The communication device 110 may determine the PMDlane group # a and the PMD lane group # B under conditions that ensure that one PMD lane corresponds to only one receiving device (specifically, one PMDlane is only used for PMD processing for the FlexE client signal that needs to be transmitted to one receiving device), for example, based on the magnitudes of the FlexE client signal # a and the FlexE client signal # B, and the currently available PMD lane.

In this case, the method further includes:

and the first sending equipment sends second control information to the transmission network equipment, wherein the second control information is used for indicating the sending equipment corresponding to each PMD lane.

Specifically, the communication device 110 may transmit, to the transport network device 111, information (i.e., an example of the second control information) indicating that the PMD lane group # a is allocated to the communication device 120 (or, to a signal that needs to be transmitted to the communication device 120), and the PMD lane group # B is allocated to the communication device 130 (or, to a signal that needs to be transmitted to the communication device 130).

Thus, the transport network apparatus 111 can determine, based on the second control information, that a signal corresponding to the PMD lane group # a (i.e., the physical-layer-processed FlexE client signal # a) needs to be transmitted to the communication apparatus 120 (or the transport network apparatus 121), and that a signal corresponding to the PMD lane group # B (i.e., the physical-layer-processed FlexE client signal # B) needs to be transmitted to the communication apparatus 130 (or the transport network apparatus 131).

By negotiating the receiving device corresponding to each PMD lane between the communication device 110 and the transmission network device 111, it is possible to flexibly cope with the transmission of data with different bandwidth requirements, and thus it is possible to improve the practicality and reliability of the method of processing an elastic ethernet signal of the present invention.

Mode 4

Optionally, the generating a physical medium dependent channel PMD lane signal according to the plurality of PCS lanes includes:

the sending equipment distributes at least one PMD lane group for each path of Flexe client signal according to second mapping relation information and receiving equipment of each path of Flexe client signal, wherein the second mapping relation information is preset in the sending end equipment and the transmission network equipment, and the second mapping relation information is used for indicating communication equipment corresponding to each PMD lane.

Specifically, in the embodiment of the present invention, information (i.e., an example of the second mapping relationship information) for recording the mapping relationship between each communication device and each PMD lane may be stored in the communication device 110 and the transport network device 111, where the mapping relationship between each communication device and each PMD lane may indicate that each PMD lane is uniquely allocated to the communication device, that is, one PMD lane only carries data of one FlexE client signal.

Thus, the communication device 110 may determine the PMD lane(s) corresponding to the communication device 120 based on the second mapping relationship, and may determine the PMD lane group # a from the PMD lanes corresponding to the communication device 120, for example, according to the bandwidth requirement of the FlexE client signal # a. Similarly, the communication device 110 may determine the PMD lane(s) corresponding to the communication device 130 based on the second mapping relationship, and may determine the PMD lane group # B from the PMD lane corresponding to the communication device 130, for example, according to the bandwidth requirement of the FlexE client signal # B.

Further, the transport network apparatus 111 may determine, according to the second mapping relationship, that data corresponding to the PMD lane group # a (i.e., the physical layer processed FlexE client signal # a) needs to be transmitted to the communication apparatus 120 (or the transport network apparatus 121), and determine that data corresponding to the PMD lane group # B (i.e., the physical layer processed FlexE client signal # B) needs to be transmitted to the communication apparatus 130 (or the transport network apparatus 131).

By enabling the communication device 110 and the transmission network device 111 to determine the receiving device corresponding to each PMD lane based on the second mapping relationship information, the process of negotiating the receiving device corresponding to each PMD lane group between the communication device 110 and the transmission network device 111 can be omitted, thereby simplifying the communication flow and saving the system communication resources.

After determining the PMD lane group corresponding to the data of each FlexE client signal as described above, the communication device 110 (e.g., the PMA module of the communication device 110) may adapt each PCS lane in the PCS lane group # a to each PMD lane in the PMDlane group # a to generate a PMD signal corresponding to the FlexE client signal # a (hereinafter, referred to as PMD signal # a for easy understanding and distinction), and the communication device 110 may adapt each pclane in the PCS lane group # B to each PMD lane in the PMD lane group # B to generate a PMD signal corresponding to the FlexE client signal # B (hereinafter, referred to as PMD signal # B for easy understanding and distinction).

Optionally, the method further comprises:

the transmitting device performs cross-connect (or cross-scheduling) processing on each PMD lane signal.

It should be noted that, in the embodiment of the present invention, the communication device 110 may perform physical layer processing on the FlexE client signal # a and the FlexE client signal # B by using the same physical layer processing entity, or the communication device 110 may perform physical layer processing on the FlexE client signal # a and the FlexE client signal # B by using different physical layer processing entities, respectively, and the present invention is not particularly limited.

In the embodiment of the present invention, the communication device 110 may perform, for example, digital-to-analog conversion processing, electrical-to-optical conversion processing, and the like on the data in the PMD lane allocated as described above, so as to generate a PMD lane signal that needs to be sent to the transmission network device 111. Thereafter, the communication apparatus 110 transmits the generated PMD lane signal to the transmission network apparatus 111.

The transport network device 111 may parse the signal to determine the receiving device (or transport network devices communicatively coupled to the receiving device) to which each data in the signal needs to be transmitted.

For example, in the embodiment of the present invention, because each PMD group only carries data of one FlexE client signal, the transport network device 111 may analyze the received signal to determine the PMDlane group corresponding to each PMD lane signal, and further determine the receiving device to which each PMD lane signal needs to be sent (e.g., according to the second mapping relationship information or the second control information).

In this case, the transport network device 111 may perform ODU encapsulation on the PMD lane signal from the sending device according to the PMD lane group, so that one ODU is only used for carrying a signal that needs to be transmitted to one receiving device, specifically, the transport network device 111 may carry a signal (i.e., a signal carried by the PMDlane group # a) that needs to be transmitted to the communication device 120 (or the transport network device 121) on an ODU group formed by one or more ODUs (hereinafter, for convenience of understanding and distinguishing, referred to as an ODU group # a), where the ODU group # a is only used for carrying data that needs to be transmitted to the communication device 120 (or the transport network device 121), or the ODU # group a only includes data in the PMD lane group # a. Moreover, the transport network device 111 may carry a signal (i.e., a signal carried by the PMD lane group # B) to be transmitted to the communication device 130 (or the transport network device 131) on an ODU group (hereinafter, for convenience of understanding and distinction, referred to as an ODU group # B) formed by one or more ODUs, where the ODU group # B is only used for carrying data to be transmitted to the communication device 130 (or the transport network device 131), or the ODU group # B only includes data in the PMD lane group # B.

Alternatively, in the embodiment of the present invention, after determining the PMDlane group corresponding to each PMD lane signal, the transport network device 111 may perform optical layer cross-connection or cross-scheduling on each PMD lane signal with the PMD lane (e.g., optical lane) as a granularity to transmit each PMD lane signal to a receiving device to which the PMD lane signal needs to be transmitted.

For another example, in the embodiment of the present invention, because each PCS group only carries data of one FlexE client signal, the transport network device 111 may analyze the received signal to determine the PCS lane group corresponding to each signal, and further determine the receiving device to which each signal needs to be sent (for example, according to the first mapping relationship information or the first control information).

In this case, the transport network device 111 may perform ODU encapsulation processing on the signal from the sending device according to the PCS lane group, so that one ODU is only used for carrying a signal that needs to be transmitted to one receiving device, specifically, the transport network device 111 may carry each signal (i.e., a signal carried by the PCS lane group # a) that needs to be transmitted to the communication device 120 (or the transport network device 121) on an ODU group formed by one or more ODUs (hereinafter, for convenience of understanding and distinction, referred to as ODU group # a '), where the ODU group # a ' is only used for carrying data that needs to be transmitted to the communication device 120 (or the transport network device 121), or the ODU group # a ' only includes data in the PCS lane group # a. Also, the transport network device 111 may carry each signal (i.e., the signal carried by the PCS lane group # B) that needs to be transmitted to the communication device 130 (or transport network device 131) on an ODU group (hereinafter, for convenience of understanding and distinction, referred to as ODU group # B ') formed by one or more ODUs, where the ODU group # B' is only used for carrying data that needs to be transmitted to the communication device 130 (or transport network device 131), or the ODU # group B only includes data in the PCS lane group # B.

On the receiving side, the transport network device 121 may transmit the received signal (e.g., an optical signal) to the communication device 120. The communication device 120 may perform photoelectric conversion processing, analog-to-digital conversion, and other processing on the received optical signal to obtain PMD layer data (specifically, data of one or more PMD lanes transmitted to the communication device 120), obtain PCS layer data (specifically, data of one or more PCS lanes transmitted to the communication device 120) in a bit interleaving manner, for example, and then the communication device 120 rearranges the PCS lanes according to the size of the PCS lane number corresponding to the AM and performs bit block decoding. Since the PCS lane sent to the PCS layer of the communication device 120 may not start with the PCS lane with sequence number 0, the communication device 120 only needs to sort by the PCS lane sequence number. Thereby enabling recovery of the FlexE client signal # a that the communication device 110 needs to send to the communication device 120.

The processing procedure of the transmission network device 131 is similar to the processing procedure of the transmission network device 121, and the processing procedure of the communication device 130 is similar to the processing procedure of the communication device 120, and here, detailed descriptions thereof are omitted to avoid redundancy.

Fig. 6 is a schematic diagram of a bit block distribution process of a transmitting device according to an embodiment of the present invention. As shown in fig. 6, assuming that the bandwidth of the FlexE client signal # a acquired by the communication device 110 (for example, by the MAC module # a) is 150G and the bandwidth of the FlexE client signal # B acquired by the communication device 110 (for example, by the MAC module # B) is 50G, 40 pcseles (denoted as PCS lane #0 to PCS lane #39) are arranged in the communication device 110, and the PMA layer performs 40: 4, that is, 4 PMD lanes (for example, optical lanes, denoted as optical lane #0 to optical lane #3) are arranged in the communication device 110, and the bandwidth of each optical lane is 50G. Also, at the communication device 110 and the transport network device 111, it may be agreed that: the PCS lane group consisting of PCS lane #0 to PCS lane #29 is assigned to the communication device 120, and the PCS lane group consisting of PCS lane #30 to PCS lane #39 is assigned to the communication device 130; alternatively, an optical lane group (an example of a PMD lane group) including optical lane #0 to optical lane #2 is assigned to the communication device 120, and an optical lane group including optical lane #3 is assigned to the communication device 130.

Then, the communication device 110 can assign the FlexE client signal # a to PCS lanes with serial numbers 0 to 29 (i.e., pclane #0 to PCS lane #29) and assign the FlexE client signal # B to PCS lanes with serial numbers 30 to 39 (i.e., pclane #30 to PCS lane # 39).

The communication device 110 can also adapt the PCS lane #0 to PCS lane #29 to the optical lanes with numbers 0 to 2 (i.e., optical lane #0 to optical lane #2), and adapt the PCS lane #30 to PCS lane #39 to the optical lane with number 3 (i.e., optical lane # 3).

The transport network apparatus 111 can transmit data in optical lane #0 to optical lane #2 or data in pclane #0 to PCS lane #29 to the communication apparatus 120, and transmit data in optical lane #3 or data in pclane #30 to PCS lane #39 to the communication apparatus 130.

Without loss of generality, the jth bit block in one PCS lane # i can be represented as i-j, e.g., "0-1" in FIG. 6 represents a bit block with bit number 1 in PCS lane # 0.

Fig. 7 is a schematic diagram of a bit block distribution process of a receiving device according to an embodiment of the present invention. As shown in FIG. 7, assume that 2 PMD lanes (for example, optical lanes: optical lane #0 '-optical lane # 1') are provided in the communication device 130, the bandwidth of each optical lane is 50G, and the PMA layer performs 2: 20, that is, 20 PCS lanes (denoted as PCS lane #0 'to PCS lane # 19') are arranged in the communication device 130.

Then, the communication device 130 can distribute the bit blocks in the Optical lane to the PCS lane in the existing manner, i.e., only one channel of the Optical lane #0 '-Optical lane # 1' receives data, and only 10 channels of the PCS lane #0 '-pclane # 19' receive data.

As an example and not by way of limitation, as shown in fig. 7, the communication device 130 receives the signal transmitted by the communication device 110 through the optical lane #3 through the optical lane #1 ', and the communication device 130 may adapt the optical lane #1 ' to 10 channels (for example, a channel with a single sequence number) of the PCS lanes #0 ' to PCS lane #19 ', so that the sequence number of the AM identifier in the signal does not coincide with the sequence number of the actually allocated PCS lane, for example, the bit block of the PCS lane #30 in the PCS lane #1 ', and at this time, the communication device 130 only needs to reorder according to the size of the sequence number corresponding to the AM in the received bit block, and does not need to check whether the sequence number of the PCS lane should be received matches.

In addition, in the present embodiment, one Optical lane (i.e., pclane # 0' shown in fig. 7) in the communication apparatus 130 is not used. In the prior art, decapsulated data is sequentially sent to the MAC layer according to the sequence of PCS lane. Since the idle bit blocks are discarded in the PCS layer, it is also equivalent to sequentially transmitting data transmitted from the communication device 110 through the PCS lane #30 to PCS lane #39 to the MAC layer as in the conventional art. Thereby enabling to double the existing techniques.

Case 2

Optionally, the allocating, by the sending device, the at least two FlexE client signals to a plurality of PCS lanes, and generating PMD lane signals according to the plurality of PCS lanes, includes:

the sending equipment determines the number of PCS lanes included in each PCS lane group of at least two PCS lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and distributes each Flexe client signal to the PCS lanes in the corresponding PCS lane group;

the sending equipment determines the number of PMD lanes included in one PMD lane group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and each PCS lane in the at least two PCS lane groups is adapted to the PMD lane in the PMD lane group so as to generate a PMD lane signal.

In case 2, the procedure of determining the PCS lane group by the communication device 110 may be similar to that in case 1, and a detailed description thereof is omitted here to avoid redundancy.

Unlike case 1, the communication device 110 may cause each PMD lane to carry data in each PCS lane when adapting each PCS lane in the PCS lane group to the PMDlane, e.g., the communication device 110 may adapt each PCS lane to each PMD lane in a manner known in the art.

In this case, the transport network device 111 may perform PCS layer decapsulation processing on the received signal to determine data corresponding to each PCS lane group in the signal, and perform ODU encapsulation processing on the received signal according to each PCS lane group, so that one ODU is only used for carrying a signal that needs to be transmitted to one receiving device, or one ODU is only used for carrying data in one PCS lane group.

Also, in this case, the processing procedure and method of the receiving device are similar to those described in case 1, and here, detailed description thereof is omitted in order to avoid redundancy.

Case 3

The sending equipment distributes the at least two Flexe client signals to a plurality of PCS lanes, and generates PMD lane signals according to the PCSLanes, and the method comprises the following steps:

the sending equipment determines the number of the PCS lanes included in one PCS lane group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals and distributes the at least two Flexe client signals to the PCS lanes in the one PCS lane group;

the sending equipment determines the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapts the bit block in the PCS lane group corresponding to each Flexe client signal to the PMD lane in the PMD lane group corresponding to the same Flexe client signal so as to generate the PMD lane signal.

Specifically, after acquiring the FlexE client signals, the communication device 110 may distribute the FlexE client signals into multiple PCS lanes, which are not grouped in case 3, i.e., each PCS lane carries data (e.g., bit blocks) of the FlexE client signals, unlike cases 1 and 2. For example, the communication device 110 may perform PCS lane assignments in a prior art manner.

It should be noted that, in the embodiment of the present invention, during the PCS lane assignment process, the communication device 110 needs to record the position (or serial number) of the bit block of each FlexE client signal in each PCS lane.

Thus, in the process of adapting a PCS lane to a PMD lane by the communication device 110, the communication device 110 may determine each PMD lane group in the manner described in case 1, where each PMD lane group carries only one piece of data (i.e., bit block) of the FlexE client signal, and the communication device 110 may adapt the data of each piece of FlexE client signal to the corresponding PMD lane group according to the position of the bit block of each FlexE client signal in each PCS lane recorded as described above.

In this case, the transport network device 111 may perform PMD layer decapsulation processing on the received signal to determine data corresponding to each PMD lane group in the signal, and perform ODU encapsulation processing on the received signal according to each PMD lane group, so that one ODU is only used for carrying a signal that needs to be transmitted to one receiving device, or one ODU is only used for carrying data in one PMD lane group.

Alternatively, in the embodiment of the present invention, after determining the PMDlane group corresponding to each PMD lane signal, the transport network device 111 may perform optical layer cross-connection or cross-scheduling on each PMD lane signal with the PMD lane (e.g., optical lane) as a granularity to transmit each PMD lane signal to a receiving device to which the PMD lane signal needs to be transmitted.

Also, in this case, the processing procedure and method of the receiving device are similar to those described in case 1, and here, detailed description thereof is omitted in order to avoid redundancy.

According to the method for processing the elastic Ethernet signals, the transmitting equipment distributes the at least two Flexe client signals to the at least two PCS lane groups or PMD lane groups, and the transmitting network equipment can distinguish the at least two Flexe client signals according to the PCS lane groups or PMD lane groups corresponding to the received signals, so that the transmitting network equipment can accurately transmit the at least two Flexe client signals to the receiving end equipment under the condition of not detecting the received signals through an MAC layer, the processing load of the transmitting network equipment can be relieved, the processing time of the transmitting network equipment is shortened, and the forwarding efficiency and the system throughput of the transmitting network equipment are improved.

Fig. 11 is a schematic diagram of an interaction process of a method 600 of processing resilient ethernet client signals according to an embodiment of the present invention. Hereinafter, for convenience of understanding and explanation, a specific procedure of the method for processing an elastic ethernet client signal according to the embodiment of the present invention will be described in detail by taking, as an example, a procedure in which the communication device 130 (i.e., an example of a receiving device) receives signals transmitted from both the communication device 110 and the communication device 120 via the transport network device 131.

As shown in fig. 11, the method 600 includes:

the method comprises the steps that receiving equipment obtains a PMD lane signal of a physical medium related channel, the PMD lane signal corresponds to at least two PMD lane groups, the at least two PMD lane groups correspond to at least two elastic Ethernet Flexe client signals one to one, each Flexe client signal in the at least two Flexe client signals is borne by the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups comprises at least one PMD lane, and one PMD lane only belongs to one PMDlane group;

the receiving equipment determines at least two physical coding sublayer channel PCvlan sets according to the at least two PMD lane sets, the at least two PMD lane sets correspond to the at least two PCS lane sets one by one, each PCS lane set in the at least two PCS lane sets comprises at least one PCS lane, and one PCS lane only belongs to one PMD lane set;

the receiving equipment adapts each PMD lane in each PMD lane group to each PCS lane in the corresponding PCS lane group;

and the receiving equipment recovers the at least two Flexe client signals according to the at least two PCS lane groups.

Specifically, as shown in fig. 11, the communication device 110 can acquire a FlexE client signal (hereinafter, for ease of understanding and explanation, referred to as a FlexE client signal # C) that needs to be transmitted to the communication device 130, and the communication device 120 can acquire a FlexE client signal (hereinafter, for ease of understanding and explanation, referred to as a FlexE client signal # D) that needs to be transmitted to the communication device 130.

By way of example and not limitation, in the embodiment of the present invention, the FlexE client signal # C and the FlexE client signal # D may be MAC layer data obtained after MAC layer encapsulation processing, and the method and procedure of the MAC layer encapsulation processing may be similar to those in the prior art, and a detailed description thereof is omitted here for avoiding redundancy.

As shown in fig. 11, after acquiring the FlexE client signal # C, the communication device 110 may perform physical layer encapsulation processing on the FlexE client signal # C.

It should be noted that, when the communication device 110 needs to transmit a FlexE client signal (referred to as a FlexE client signal # E) to another communication device in addition to the communication device 130, the communication device 110 may allocate the FlexE client signal # C and the FlexE client signal # E to different PCS lane groups or PMD lane groups according to the receiving end devices of the FlexE client signal # C and the FlexE client signal # E to generate a PMD lane signal, for example, an optical lane signal, and the process may be similar to the process performed by the communication device 110 shown in fig. 5 for the FlexE client signal # a and the FlexE client signal # B, and a detailed description thereof is omitted here for avoiding redundant description.

In the case where the communication device 110 transmits only the FlexE client signal to the communication device 130, the communication device 110 may distribute the FlexE client signal # C to multiple PCS lanes and adapt the PCS lanes to one or more PMD lanes to generate PMD lane signals, e.g., Optical lane signals, in a manner similar to the prior art.

Thereafter, the communication apparatus 110 transmits the PMD lane signal generated as described above to the transmission network apparatus 111.

The transport network device 111 may parse the received signal to transmit data corresponding to the FlexE client signal # C in the signal to the communication device 130 (or the transport network device 131 communicatively connected to the communication device 130). The process may be similar to the prior art, or may be similar to the processing process of the transport network device 111 shown in fig. 5, and here, a detailed description thereof is omitted to avoid redundancy.

Similarly, the communication device 120 can transmit data corresponding to the FlexE client signal # D to the communication device 130 via the transport network device 121.

Thus, the communication device 130 (e.g., the receiving module of the communication device 130) may receive data corresponding to the FlexE client signal # C through a PMD lane group (hereinafter, referred to as a PMD lane group # C for easy understanding and distinction) composed of one or more PMD lanes and receive data corresponding to the FlexE client signal # D through a PMD lane group (hereinafter, referred to as a PMD lane group # D for easy understanding and distinction) composed of one or more PMD lanes at the same time period.

It should be noted that, in the embodiment of the present invention, indication information for indicating the PMD lane group to which each PMDlane belongs may be prestored in the communication device 130, and one PMD lane group carries only one FlexE client signal (or, a signal from one transmitting device).

Among other things, the communication device 130 (e.g., a control module of the communication device 130) may determine a plurality of PCS lane groups that are in one-to-one correspondence with a plurality of PMD lane groups, each PCS lane group carrying only data from the corresponding PMDlane group.

Thereafter, the communication device 130 (e.g., PMA module of the communication device 130) may adapt the PMD lane group # C to a PCS lane group consisting of one or more PCS lanes (hereinafter, referred to as PCS lane group # C for easy understanding and distinction) and adapt the PMD lane group # D to a PCS lane group consisting of one or more PCS lanes (hereinafter, referred to as PCS lane group # D for easy understanding and distinction), for example, in a bit interleaving manner.

Thereafter, the communication device 130 (e.g., the FlexE and PCS lane reordering modules of the communication device 130) may recover the FlexE client signal # C in the pclan group # C based on the data from the PMD lane group # C; and in PCS lane group # D, based on the data from PMD lane group # D, FlexE client signal # D is recovered.

Thus, the communication device 130 (e.g., the MAC receiving module of the communication device 130) can perform, for example, ethernet decapsulation processing on the FlexE client signal # C, thereby obtaining data transmitted by the communication device 110; also, the FlexE client signal # D may be subjected to, for example, ethernet decapsulation processing, thereby obtaining data transmitted by the communication device 120.

Optionally, the recovering, by the receiving device, the at least two FlexE client signals according to the at least two PCS lane groups includes:

the receiving end equipment acquires a coding mode used when the sending end equipment of a first Flexe client signal codes an alignment mark AM corresponding to the first Flexe client signal, wherein the first Flexe client signal corresponds to a first PMD lane group;

and the receiving end equipment recovers the first Flexe client signal according to the coding mode and a first PCS lane group, wherein the first PCS lane group corresponds to the first PMD lane group.

Specifically, since the PCS lane number indicated by the AM may not match the pclane number included in the PCS lane group, or the AM encoding method of the transmitting device may not match the AM decoding method of the communication device 130, the communication device 130 only needs to reorder the received bit blocks according to the size of the sequence number corresponding to the AM therein, and does not need to check whether the received bit blocks match the sequence number of the PCS lane to be received, and the communication device 130 selects a corresponding decoding method according to the AM encoding method to decode.

Fig. 12 is a schematic diagram of a bit block distribution process of a transmitting device according to an embodiment of the present invention. As shown in fig. 12, assuming that the bandwidth of the FlexE client signal # C acquired by the communication device 110 is 150G, the bandwidth of the FlexE client signal # D acquired by the communication device 120 is 50G, 30 PCS lanes (denoted by PCS lane #0-C to PCS lane #29-C, serial numbers 0 to 29) are arranged in the communication device 110, and the PMA layer performs 30: 3, that is, 3 PMD lanes (for example, optical lanes: optical lane #0-C to optical lane #2-C, serial numbers 0-2) are arranged in the communication device 110, and the bandwidth of each optical lane is 50G. 10 PCS lane (denoted as PCS lane #0-D to PCS lane #9-D, serial numbers 0 to 9) are configured in the communication device 120, and the PMA layer performs the following operations: 1, that is, 1 PMD lane (for example, optical lane, optical lane #0-D, serial number 0) is arranged in the communication device 110, and the bandwidth of the optical lane is 50G.

Then, the communication device 110 may assign the FlexE client signal # C to PCS lanes with serial numbers 0-29 (i.e., pclane #0-C to PCS lane #29-C), and the communication device 120 may assign the FlexE client signal # D to PCS lanes with serial numbers 0-9 (i.e., PCS lane #0-D to PCS lane # 9-D).

Moreover, communication device 110 can adapt PCS lane #0-C to PCS lane #29-C to optical lane with sequence numbers 0-2 (i.e., optical lane #0-C to optical lane #2-C), and communication device 120 can adapt PCLANe #0-D to PCS lane #9-D to optical lane with sequence number 0 (i.e., optical lane # 0-D).

Fig. 13 is a schematic diagram of a bit block distribution process of a receiving device according to an embodiment of the present invention. As shown in FIG. 13, assume that the communication device 130 has 4 PMD lanes (e.g., optical lanes, numbered 0-3, and having a bandwidth of 50G per optical lane, and that the PMA layer performs 4: in the conversion of 40, 40 PCS lanes (denoted as PCS lane #0 'to PCS lane # 39', with serial numbers of 0 to 39) are arranged in the communication device 130.

In this case, the communication device 130 may group the optical lanes #0 "to # 3" according to the size of data transmitted by the communication device 110 and the communication device 120, and may form the PMD lane group # C with the optical lanes #0 "to # 2" and the pmdlan group # D with the optical lane #3 ", by way of example and not limitation. That is, the PMD lane group # C is used for receiving signals from optical lanes #0-C to optical lanes #2-C, and the PMD lane group # D is used for receiving signals from optical lanes # 0-D.

Furthermore, the communication device 130 may determine a plurality of PCS lane groups according to the number of PMD lanes included in each PMD lane group (or the bandwidth of data received by each PMD lane group), where the plurality of PCS lane groups are in one-to-one correspondence with the plurality of PMD lane groups, each PCS lane group is only used for carrying data in the corresponding PMD lane group, and the PCS lane group # C may be formed by PCS lane #0 "to PCS lane # 29" by way of example and not limitation, and the PCS lane group # D may be formed by PCS lane #30 "to PCS lane # 39".

Thereafter, the communication device 130 may adapt each PMD lane in the PMD lane group # C to each PCS lane in the PCS lane group # C, and each PMD lane in the PMD lane group # D to each PCS lane in the PCS lane group # D.

Thus, the communication device 130 can perform PCS lane reordering in PCS lane group # C to recover the FlexE client signal # C.

Also, the communication device 130 may perform PCS lane reordering in PCS lane group # D to recover FlexE client signal # D. The PCS lane numbers carried by the data in the PCS lane group # D are the numbers of PCS lane #0-D to PCS lane #9-D, i.e., 0 to 9, and the numbers of the PCS lanes (i.e., PCS lane #30 'to PCS lane # 39') in the PCS lane group # D are 30 to 39. That is, the sequence numbers of the PCS lanes used by the transmitting device and the receiving device do not match, or the sequence number indicated by the AM of the data in the PCS lane group # D does not match the sequence number of the PCS lane included in the PCS lane group # D, and in this case, the communication device 130 may reorder the PCS lane according to the size of the pclane sequence number corresponding to the AM of each data in the PCS lane group without checking whether or not the PCS lane sequence number corresponding to the AM matches the CS lane sequence number actually used by the communication device 130.

In addition, the encoding method of the AM by the sending device may not match the decoding method of the AM by the communication device 130, and therefore, the communication device 130 needs to acquire the encoding method of the AM by the sending device and select a corresponding decoding method according to the encoding method of the AM for decoding.

According to the method for processing the elastic Ethernet signal, the receiving equipment adapts at least two PMD lane groups to at least two PCS lane groups, and the flexE client signals carried in the PMD lane groups are respectively recovered in the PCS lane groups, so that the receiving equipment can receive the flexE client signals from different sending equipment in the same time period, and the system throughput can be improved.

It should be understood that the above-mentioned processing of the receiving device is only an exemplary illustration, and the present invention is not particularly limited, for example, the receiving device may receive signals from a plurality of transmitting devices through the same PMD lane group, that is, each PMD lane carries signals of a plurality of transmitting devices, in this case, each transmitting device may agree on the AM coding scheme so that different transmitting devices use different AM coding schemes, so that the receiving device can distinguish the transmitting device from which the signal comes according to the AM coding scheme, thereby recovering the signals from different transmitting devices.

Fig. 14 is a schematic block diagram illustrating an apparatus 700 for processing a resilient ethernet signal according to an embodiment of the present invention, and as shown in fig. 14, the apparatus 700 includes:

an obtaining unit 710, configured to obtain at least two channels of elastic ethernet FlexE client signals;

a generating unit 720, configured to distribute the at least two FlexE client signals to a plurality of physical coding sublayer channels PCS lane, and generate a physical medium dependent channel PMD lane signal according to the plurality of PCS lane, where

The plurality of PCS lane are divided into at least two PCS lane groups, the at least two Flexe client signals correspond to the at least two PCS lane groups one by one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PCS lane group, each PCS lane group in the at least two PCS lane groups comprises at least one PCS lane, and one PCS lane only belongs to one PCS lane group; or

The PMD lane signal corresponds to at least two PMD lane groups, the at least two Flexe client signals correspond to the at least two PMD lane groups one to one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups comprises at least one PMD lane, and one PMD lane only belongs to one PMD lane group.

Optionally, the generating unit is specifically configured to determine, according to a bandwidth of each of the at least two FlexE client signals, the number of PCS lanes included in each of the at least two PCS lane groups, and allocate each FlexE client signal to a corresponding PCS lane in the PCS lane group;

and the PMD land signal generating unit is used for determining the number of PMD lands included in one PMD land group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting each PCS land in the at least two PCS land groups to the PMD land in the PMD land group to generate the PMD land signal.

Optionally, the generating unit is specifically configured to determine, according to a bandwidth of each of the at least two FlexE client signals, the number of PCS lanes included in each of the at least two PCS lane groups, and allocate each FlexE client signal to a corresponding PCS lane in the PCS lane group;

the method comprises the steps of determining the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting the PCS lanes in the PCS lane group corresponding to each Flexe client signal to the PMD lanes in the PMD lane group corresponding to the same Flexe client signal to generate the PMD lane signal.

Optionally, the generating unit is specifically configured to determine, according to a bandwidth of each of the at least two FlexE client signals, the number of PCS lanes included in one PCS lane group and allocate the at least two FlexE client signals to the PCS lanes in the one PCS lane group;

the method comprises the steps of determining the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting a bit block in the PCS lane group corresponding to each Flexe client signal to the PMD lanes in the PMD lane group corresponding to the same Flexe client signal to generate the PMD lane signal.

Optionally, the generating unit is specifically configured to perform encoding processing on the alignment mark AM corresponding to each PCS lane based on the same encoding method.

The units or modules in the apparatus 700 are respectively configured to perform the actions and functions performed by the sending device (e.g., the communication device 110) in the method 500, and a detailed description thereof is omitted here for avoiding redundancy.

According to the apparatus for processing the elastic ethernet signals, the transmitting device is enabled to distribute the at least two FlexE client signals to the at least two PCS lane groups or PMD lane groups, and the transmitting device is enabled to distinguish the at least two FlexE client signals according to the PCS lane groups or PMD lane groups corresponding to the received signals.

Fig. 15 is a schematic block diagram illustrating an apparatus 800 for processing a resilient ethernet signal according to an embodiment of the present invention, and as shown in fig. 15, the apparatus 800 includes:

a receiving unit 810, configured to receive a PMD lane signal of a physical medium dependent channel sent by a sending device, where the PMDlane signal is generated by the sending device according to a plurality of physical coding sublayer channels pclanes after the sending device distributes at least two FlexE client signals to the plurality of physical coding sublayer channels pclanes;

a generating unit 820, configured to, when the PMD lane signal corresponds to at least two PCS lane groups, perform encapsulation processing on the signal by the transport network device according to the at least two PCS lane groups to generate at least two optical channel data unit ODU groups, where the at least two PCS lane groups correspond to the at least two ODU groups one to one, each ODU group in the at least two ODU groups includes at least one ODU, and an ODU belongs to only one ODU group;

when the signal corresponds to at least two PMD lane groups, the transport network device performs encapsulation processing on the signal according to the at least two PMD lane groups to generate at least two optical channel data unit ODU groups, where the at least two PMD lane groups correspond to the at least two ODU groups one to one, each ODU group of the at least two ODU groups includes at least one ODU, and one ODU belongs to only one ODU group.

Each unit or module in the apparatus 800 is configured to perform the actions and functions performed by the transmitting-end transport network device (e.g., the transport network device 111) in the method 500, and a detailed description thereof is omitted here for avoiding redundancy.

Fig. 16 is a schematic block diagram illustrating an apparatus 900 for processing a resilient ethernet signal according to an embodiment of the present invention, and as shown in fig. 16, the apparatus 900 includes:

an obtaining unit 910, configured to obtain a PMD lane signal of a physical medium related channel, where the PMD lane signal corresponds to at least two PMD lane groups, the at least two PMD lane groups correspond to at least two elastic ethernet FlexE client signals one to one, each FlexE client signal in the at least two FlexE client signals is borne by the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups includes at least one PMD lane, and one PMD lane belongs to only one PMD lane group;

a determining unit 920, configured to determine at least two physical coding sublayer channel PCS lane groups according to the at least two PMD lane groups, where the at least two PMD lane groups and the at least two PCS lane groups are in one-to-one correspondence, each PCS lane group of the at least two PCS lane groups includes at least one PCS lane, and one PCS lane belongs to only one PMD lane group;

an adapting unit 930, configured to adapt each PMD lane in each PMD lane group to each PCS lane in the corresponding PCS lane group;

a restoring unit 940, configured to restore the at least two FlexE client signals according to the at least two PCS lane groups.

Optionally, the obtaining unit is further configured to obtain an encoding manner used by a sending-end device of a first FlexE client signal when encoding an alignment mark AM corresponding to the first FlexE client signal, where the first FlexE client signal corresponds to a first PMD lane group;

the recovery unit is specifically configured to recover the first FlexE client signal according to the coding scheme and a first PCS lane group, where the first PCS lane group corresponds to the first PMD lane group.

The units or modules in the apparatus 900 are respectively configured to perform the actions and functions performed by the receiving device (e.g., the communication device 130) in the method 600, and a detailed description thereof is omitted here for avoiding redundancy.

According to the device for processing the elastic Ethernet signal, the receiving equipment adapts at least two PMD lane groups to at least two PCS lane groups, and the flexE client signals carried in the PMD lane groups are respectively recovered in the PCS lane groups, so that the receiving equipment can receive flexE client signals from different sending equipment in the same time period, and the system throughput can be improved.

The method and the device for transmitting data provided by the embodiment of the invention can be applied to a computer, and the computer comprises a hardware layer, an operating system layer running on the hardware layer and an application layer running on the operating system layer. The hardware layer includes hardware such as a CPU, a Memory Management Unit (MMU), and a Memory (also referred to as a Memory). The operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux system, a Unix system, an Android system, an iOS system, or a windows system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like.

Next, the structure and function of the computer device provided by the present invention will be described with reference to fig. 17.

Fig. 17 is a schematic block diagram of an apparatus 1000 for processing a resilient ethernet signal according to an embodiment of the present invention, and as shown in fig. 14, the apparatus 1000 includes: the processor 1010 and the transceiver 1020, the processor 1010 and the transceiver 1020 being connected, optionally the device 1000 further comprises a memory 1030, the memory 1030 being connected to the processor 1010, further optionally the device 1000 comprises a bus system 1040. The processor 1010, the memory 1030, and the transceiver 1020 may be coupled by a bus system 1040, the memory 1030 may be configured to store instructions, and the processor 1010 may be configured to execute the instructions stored by the memory 1030 to control the transceiver 1020 to receive information or signals.

In an embodiment of the present invention, the apparatus 1000 for processing a resilient ethernet signal may be a transmitting apparatus of a signal, for example, for performing the actions and functions performed by the transmitting apparatus (e.g., the communication apparatus 110) in the method 500 described above, in which case:

the processor 1010 is configured to obtain at least two paths of flexible ethernet FlexE client signals;

the processor 1010 is configured to distribute the at least two FlexE client signals to a plurality of physical coding sublayer channels PCS lane, and generate a physical medium dependent channel PMD lane signal according to the plurality of PCS lane, wherein the PMD lane signal is generated by a plurality of physical medium dependent channels of the physical medium dependent channels

The plurality of PCS lane are divided into at least two PCS lane groups, the at least two Flexe client signals correspond to the at least two PCS lane groups one by one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PCS lane group, each PCS lane group in the at least two PCS lane groups comprises at least one PCS lane, and one PCS lane only belongs to one PCS lane group; or

The PMD lane signal corresponds to at least two PMD lane groups, the at least two Flexe client signals correspond to the at least two PMD lane groups one to one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups comprises at least one PMD lane, and one PMD lane only belongs to one PMD lane group.

Optionally, the processor 1010 is configured to determine, according to a bandwidth of each of the at least two FlexE client signals, the number of PCS lanes included in each of the at least two PCS lane groups, allocate each of the FlexE client signals to a corresponding PCS lane in the PCS lane group, determine, according to the bandwidth of each of the at least two FlexE client signals, the number of PMD lanes included in one PMD lane group, and adapt each of the at least two PCS lanes to the PMD lane in the one PMD lane group, so as to generate the PMD lane signal.

Optionally, the processor 1010 is configured to determine, according to a bandwidth of each of the at least two FlexE client signals, the number of PCS lanes included in each of the at least two PCS lane groups, and allocate each FlexE client signal to a PCS lane in a corresponding PCS lane group; the method comprises the steps of determining the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting the PCS lanes in the PCS lane group corresponding to each Flexe client signal to the PMD lanes in the PMD lane group corresponding to the same Flexe client signal to generate a PMD lane signal.

Optionally, the processor 1010 is configured to determine, according to a bandwidth of each of the at least two FlexE client signals, a number of PCS lanes included in one PCS lane group and allocate the at least two FlexE client signals to the PCS lanes in the one PCS lane group; and determining the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting the bit block in the PCS lane group corresponding to each Flexe client signal to the PMD lane in the PMD lane group corresponding to the same Flexe client signal to generate the PMD lane signal.

Optionally, the processor 1010 is configured to perform encoding processing on the alignment mark AM corresponding to each PCS lane based on the same encoding manner.

According to the device for processing the elastic Ethernet signals, the transmitting device distributes the at least two Flexe client signals to the at least two PCS lane groups or PMD lane groups, and the transmitting network device can distinguish the at least two Flexe client signals according to the PCS lane groups or PMD lane groups corresponding to the received signals, so that the transmitting network device can accurately transmit the at least two Flexe client signals to the receiving end device under the condition of not detecting the MAC layer of the received signals, the processing load of the transmitting network device can be reduced, the processing time of the transmitting network device can be reduced, and the forwarding efficiency and the system throughput of the transmitting network device can be improved.

In an embodiment of the present invention, the apparatus 1000 for processing a resilient ethernet signal may be a transport network apparatus, for example, configured to perform the actions and functions performed by the transmission-side transport network apparatus (e.g., transport network apparatus 111) in the method 500, in which case:

the processor 1010 is configured to control the control transceiver 1020 to receive a PMD lane signal of a physical medium dependent channel sent by a sending device, where the PMD lane signal is generated by the sending device according to a plurality of physical coding sublayer channels PCS lane after the sending device distributes at least two FlexE client signals to the plurality of PCS lanes;

the processor 1010 is configured to, when the PMD lane signal corresponds to at least two PCS lane groups, perform, by the transport network device, encapsulation processing on the signal according to the at least two PCS lane groups to generate at least two optical channel data unit ODU groups, where the at least two PCS lane groups correspond to the at least two ODU groups one to one, each ODU group in the at least two ODU groups includes at least one ODU, and an ODU belongs to only one ODU group;

the processor 1010 is configured to, when the signal corresponds to at least two PMD lane groups, perform, by the transport network device, encapsulation processing on the signal according to the at least two PMD lane groups to generate at least two optical channel data unit ODU groups, where the at least two PMD lane groups correspond to the at least two ODU groups one to one, each ODU group in the at least two ODU groups includes at least one ODU, and one ODU belongs to only one ODU group.

In an embodiment of the present invention, the apparatus 1000 for processing a resilient ethernet signal may be a receiving apparatus of a signal, for example, for performing the actions and functions performed by the receiving apparatus (e.g., the communication apparatus 130) in the method 600, in which case:

the processor 1010 is configured to control the transceiver 1020 to obtain PMD lane signals of a physical medium-related channel, where the PMDlane signals correspond to at least two PMD lane groups, the at least two PMD lane groups correspond to at least two elastic ethernet FlexE client signals one to one, each FlexE client signal in the at least two FlexE client signals is borne by the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups includes at least one PMD lane, and one PMDlane only belongs to one PMD lane group;

the processor 1010 is configured to determine at least two physical coding sublayer channel PCS lane groups according to the at least two PMD lane groups, where the at least two PMD lane groups correspond to the at least two PCS lane groups one to one, each PCS lane group of the at least two PCS lane groups includes at least one PCS lane, and one PCS lane belongs to only one PMD lane group;

the processor 1010 is configured to adapt each PMD lane in each PMD lane group to each PCS lane in the corresponding PCS lane group;

the processor 1010 is configured to recover the at least two FlexE client signals according to the at least two PCS lane groups.

Optionally, the processor 1010 is configured to obtain a coding mode used by a sending-end device for obtaining a first FlexE client signal when coding an alignment mark AM corresponding to the first FlexE client signal, where the first FlexE client signal corresponds to a first PMD lane group;

the processor 1010 is configured to recover the first FlexE client signal according to the coding scheme and a first PCS lane group, where the first PCS lane group corresponds to the first PMD lane group.

According to the device for processing the elastic Ethernet signal, the receiving device adapts at least two PMD lane groups to at least two PCS lane groups, and the flexE client signals carried in the PMD lane groups are respectively recovered in the PCS lane groups, so that the receiving device can receive flexE client signals from different sending devices in the same time period, and the system throughput can be improved.

It should be understood that, in the embodiment of the present invention, the processor 1010 may be a Central Processing Unit (CPU), and the processor 1010 may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 1030 may include both read-only memory and random access memory, and provides instructions and data to the processor 1010. A portion of memory 1030 may also include non-volatile random access memory. For example, memory 1030 may also store information for device types.

The bus system 1040 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, however, the various buses are labeled in the figure as the bus system 1040.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1010. The steps of a method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in the processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 1030, and the processor 1010 reads the information in the memory 1030 and performs the steps of the above method in combination with hardware thereof. To avoid repetition, it is not described in detail here.

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

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 several embodiments provided in the present application, it should be understood that the disclosed system, 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.

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: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

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 appended claims.

Claims (12)

1. A method of processing a resilient ethernet client signal, the method comprising:

the method comprises the steps that a sending device generates indicating information used for indicating a bit interleaving mode of a physical medium additional PMA module according to the number and bandwidth of elastic Ethernet Flexe client signals required to be generated and a currently usable physical medium related channel PMD lane;

the method comprises the steps that a sending device obtains at least two Flexe client signals;

the sending equipment distributes the at least two Flexe client signals to a plurality of physical coding sublayer channels PCSLane;

the sending equipment generates a PMD lane signal according to the PCS lanes and the indication information, wherein the PMD lane signal is generated by the sending equipment

The PMD lane signals correspond to at least two PMD lane groups, the at least two Flexe client signals correspond to the at least two PMD lane groups one by one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups comprises at least one PMDLane, and one PMD lane only belongs to one PMD lane group;

and the sending equipment processes the PMD lane signal to generate a transmission signal.

2. The method of claim 1, wherein said transmitting device distributing said at least two Flexe client signals to a plurality of PCS lanes and generating PMD lane signals from said plurality of PCS lanes, comprises:

the sending equipment determines the number of PCS lanes included in each PCS lane group of at least two PCS lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and distributes each Flexe client signal to the PCS lanes in the corresponding PCS lane group;

and the sending equipment determines the number of PMD lanes included in one PMD lane group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapts each PCS lane in the at least two PCS lane groups to the PMD lane in the PMD lane group so as to generate a PMD lane signal.

3. The method of claim 1, wherein said transmitting device distributing said at least two Flexe client signals to a plurality of PCS lanes and generating PMD lane signals from said plurality of PCS lanes, comprises:

the sending equipment determines the number of PCS lanes included in each PCS lane group of at least two PCS lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and distributes each Flexe client signal to the PCS lanes in the corresponding PCS lane group;

and the sending equipment determines the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapts the PCS lane in the PCS lane group corresponding to each Flexe client signal to the PMD lane in the PMD lane group corresponding to the same Flexe client signal so as to generate the PMD lane signal.

4. The method of claim 1, wherein said transmitting device distributing said at least two Flexe client signals to a plurality of PCS lanes and generating PMD lane signals from said plurality of PCS lanes, comprises:

the sending equipment determines the number of PCS lanes included in one PCS lane group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals and distributes the at least two Flexe client signals to the PCS lanes in the PCS lane group;

and the sending equipment determines the number of PMD lanes included in each PMD lane group in at least two PMD lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapts the bit block in the PCS lane group corresponding to each Flexe client signal to the PMD lane in the PMD lane group corresponding to the same Flexe client signal so as to generate the PMD lane signal.

5. A method of processing a resilient ethernet client signal, the method comprising:

the method comprises the steps that a receiving device receives signals sent by a transmission network, processes the signals to obtain corresponding physical medium related channel PMDlane signals, the PMD lane signals correspond to at least two PMD lane groups, the at least two PMD lane groups correspond to at least two elastic Ethernet Flexe client signals one to one, each Flexe client signal in the at least two elastic Ethernet client signals is borne by the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups comprises at least one PMD lane, and one PMD lane only belongs to one PMD lane group;

the receiving equipment determines at least two physical coding sublayer channel PCvlan sets according to the at least two PMD lane sets, the at least two PMD lane sets correspond to the at least two PCS lane sets one by one, each PCS lane set in the at least two PCvlan sets comprises at least one PCS lane, and one PCS lane only belongs to one PMD lane set;

the receiving equipment adapts each PMD lane in each PMD lane group to each PCS lane in the corresponding PCS lane group;

and the receiving equipment recovers the at least two Flexe client signals according to the at least two PCS lane groups.

6. The method according to claim 5, wherein said receiving device recovering said at least two Flexe client signals from said at least two PCS lane groups comprises:

the method comprises the steps that a sending end device for obtaining a first Flexe client signal by a receiving end device uses a coding mode when coding processing is carried out on an alignment mark AM corresponding to the first Flexe client signal, wherein the first Flexe client signal corresponds to a first PMD Lane group;

and the receiving end equipment recovers the first Flexe client signal according to the coding mode and a first PCS lane group, wherein the first PCS lane group corresponds to the first PMD lane group.

7. An apparatus for processing a resilient ethernet client signal, the apparatus comprising:

the generating unit is used for generating indication information for indicating a bit interleaving mode of a physical medium additional PMA module according to the number and bandwidth of the flexible Ethernet FlexeE client signals required to be generated and a currently usable physical medium related channel PMD lane;

the acquisition unit acquires at least two paths of elastic Ethernet Flexe client signals;

a generating unit, configured to allocate the at least two FlexE client signals to a plurality of physical coding sublayer channels PCSlane;

the generating unit is also used for generating a physical medium dependent channel PMD lane signal according to the plurality of PCS lanes and the indication information, wherein the physical medium dependent channel PMD lane signal is generated by the generating unit

The plurality of PCS lane are divided into at least two PCS lane groups, the at least two Flexe client signals correspond to the at least two PCS lane groups one by one, each Flexe client signal in the at least two Flexe client signals is distributed to the corresponding PCS lane group, each PCS lane group in the at least two PCS lane groups comprises at least one PCS lane, and one PCS lane only belongs to one PCS lane group;

and the transmitting unit is used for processing the PMD lane signal to generate a transmitting signal.

8. The apparatus according to claim 7, wherein the generating unit is specifically configured to determine, according to a bandwidth of each of the at least two FlexE client signals, a number of PCS lanes included in each of the at least two PCS lane groups, and allocate each FlexE client signal to a PCS lane in the corresponding PCS lane group;

and the PMDLane signal generating unit is used for determining the number of PMDLanes included in one PMDlane group according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting each PCS Lane in the at least two PCS Lane groups to the PMDLane in the PMDLane group to generate the PMD Lane signal.

9. The apparatus according to claim 7, wherein the generating unit is specifically configured to determine, according to a bandwidth of each of the at least two FlexE client signals, a number of PCS lanes included in each of the at least two PCS lane groups, and allocate each FlexE client signal to a PCS lane in the corresponding PCS lane group;

and the PMD land signal generating unit is used for determining the number of PMD lands included in each PMD land group in at least two PMD land groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting the PCS land in the PCS land group corresponding to each Flexe client signal to the PMD land in the PMD land group corresponding to the same Flexe client signal to generate the PMD land signal.

10. The apparatus according to claim 7, wherein the generating unit is specifically configured to determine, based on a bandwidth of each of the at least two FlexE client signals, a number of PCS lanes included in one PCS lane group and allocate the at least two FlexE client signals to the PCS lanes in the one PCS lane group;

and the PMD Lane generator is used for determining the number of PMD Lanes included in each PMD Lane group in at least two PMD Lane groups according to the bandwidth of each Flexe client signal in the at least two Flexe client signals, and adapting the bit block in the PCS Lane group corresponding to each Flexe client signal to the PMD Lane in the PMD Lane group corresponding to the same Flexe client signal so as to generate the PMD Lane signal.

11. An apparatus for processing a resilient ethernet client signal, the apparatus comprising:

an obtaining unit, configured to receive a signal sent via a transport network, process the signal and obtain a corresponding PMD lane signal of a physical medium related channel, where the PMD lane signal corresponds to at least two PMD lane groups, the at least two PMD lane groups correspond to at least two elastic ethernet FlexE client signals one to one, each FlexE client signal in the at least two FlexE client signals is borne by the corresponding PMD lane group, each PMD lane group in the at least two PMD lane groups includes at least one PMD lane, and one PMD lane belongs to only one PMD lane group;

a determining unit, configured to determine at least two physical coding sublayer channel pcland groups according to the at least two PMD lane groups, where the at least two PMD lane groups and the at least two PCS lane groups are in one-to-one correspondence, each PCS lane group of the at least two PMD lane groups includes at least one PCS lane, and one PCS lane belongs to only one PMD lane group;

the adaptation unit is used for adapting each PMD lane in each PMD lane group to each PCS lane in the corresponding PCS lane group;

and the recovery unit is used for recovering the at least two Flexe client signals according to the at least two PCS lane groups.

12. The apparatus according to claim 11, wherein the obtaining unit is further configured to obtain an encoding mode used by a sending-end device for obtaining a first FlexE client signal when encoding the alignment mark AM corresponding to the first FlexE client signal, where the first FlexE client signal corresponds to a first PMD lane group;

the recovery unit is specifically configured to recover the first FlexE client signal according to the coding scheme and a first PCS lane group, where the first PCS lane group corresponds to the first PMD lane group.

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