WO2015117384A1

WO2015117384A1 - Method and device for reporting received loss of signal alarm (rxlos)

Info

Publication number: WO2015117384A1
Application number: PCT/CN2014/089076
Authority: WO
Inventors: 蔡国龙
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-07-17
Filing date: 2014-10-21
Publication date: 2015-08-13
Also published as: CN105281939A

Abstract

Provided are a method and device for reporting a received loss of signal alarm (RXLOS). The method of the present invention comprises: detecting a level value of an INTL pin outside of a QSFP+ optical module, wherein the INTL pin is configured to respond to a state of a received loss of signal alarm (RXLOS); according to the level value, determining the state of the RXLOS; and reporting the state of the RXLOS. The present invention solves the problem in the prior art that a system cannot normally and quickly report a state of an RXLOS of a QSFP+ optical module during Ethernet operation, thus achieving the effect of quickly capturing the change of state of the RXLOS of the QSFP+ optical module.

Description

Method and device for reporting received signal loss alarm RXLOS

Technical field

The present invention relates to the field of communications, and in particular, to a method and apparatus for reporting a received signal loss alarm RXLOS.

Background technique

RXLOS (Receive Loss of Signal Alarm), RXLOS function directly reflects whether the received signal is normal, when the received signal is not lost, RXLOS = 0, when the received signal is lost, RXLOS = 1. Usually in the optical module product, an RXLOS pin is designed in the interface, and the RXLOS state is monitored in the hardware circuit design to obtain information on whether the received signal is lost. In the Ethernet, when the system detects a change in the RXLOS state, the RXLOS interrupt is quickly reported to the processing system, and then the processing system responds and processes in time. This method of quickly reporting RXLOS state changes in the form of RXLOS interrupts is too One of the important means for the network to achieve fast link switching.

With the rapid development of Ethernet, 40G/100G optical interface standards and pluggable optical module standards have been completed, and 40G and 100G optical modules have gradually improved the market. Due to its high speed, small package size and low power consumption, the 40G QSFP+ optical module has been rapidly developed and its application in high-speed Ethernet is increasing. But it has two major drawbacks:

1) Due to the reduction of the package, the RXLOS pin is not designed in the QSFP (Quad Small Form-factor Pluggable four-channel SFP interface) + optical module structure. The external circuit does not directly obtain the RXLOS status of the QSFP+ optical module.

2) According to the SFF 8436 protocol followed by the QSFP+ optical module, although the internal RXLOS status register can be accessed via the IIC bus, the status register type is read, ie once the RXLOS status is lost, the status register is automatically locked until external The IIC bus reads this register, otherwise RXLOS is always locked to the lost state, which causes the RXLOS status register to respond only to the first received signal from loss to loss of the change process, after which the RXLOS state will be locked in the lost state, the received signal Subsequent lost state changes will no longer respond and will not produce a normal RXLOS interrupt.

In the Ethernet operation, the system can quickly respond to and process the RXLOS interrupt of the QSFP+ optical module. The above two major shortcomings of the QSFP+ optical module can prevent the RXLOS interrupt from being reported quickly. This is not conducive to the fast link between the QSFP+ optical module and the Ethernet. The switching function will limit the application of QSFP+ optical modules in Ethernet.

Summary of the invention

The present invention provides a method and a device for reporting a received signal loss alarm RXLOS, so as to at least solve the problem that the system cannot report the RXLOS state of the QSFP+ optical module normally in the Ethernet operation.

According to an aspect of the present invention, a method for reporting a received signal loss alarm RXLOS is provided, the method comprising: detecting a level value of an INTL pin external to a QSFP+ optical module, wherein the INTL pin is configured to respond The state of receiving the signal loss alarm RXLOS; determining the state of the RXLOS according to the level value; reporting the state of the RXLOS.

Optionally, when the state of the RXLOS is a lost state, the state of the RXLOS stored in an internal register of the QSFP+optical module is read.

Optionally, before detecting the level value of the INTL pin outside the QSFP+ optical module, the method further includes: configuring a parameter corresponding to the INTL pin in the internal register, so that the INTL pin responds to the state of the RXLOS.

Optionally, before detecting the level value of the INTL pin outside the QSFP+ optical module, the method further includes: periodically detecting a value of the preset enable register, where the value of the enable register is used to indicate the detecting device or system Occupying the IIC bus; when the value of the enable register indicates that the detecting device occupies the IIC bus, the detecting device occupies the IIC bus and detects the level value of the INTL pin.

Optionally, the method further includes: occupying, by the system, the IIC bus when a value of the enable register indicates that the system occupies the IIC bus.

According to another aspect of the present invention, there is provided an apparatus for reporting a received signal loss alarm RXLOS, the apparatus comprising: a first detecting module configured to detect a level value of an INTL pin external to the QSFP+ optical module, wherein The INTL pin is configured to respond to the state of the received signal loss alarm RXLOS; the determining module is configured to determine the state of the RXLOS according to the level value; and the reporting module is configured to report the state of the RXLOS.

Optionally, the method further includes: a read clearing module, configured to read the state of the RXLOS stored in an internal register of the QSFP+ optical module when the state of the RXLOS is a lost state.

Optionally, the method further includes: configuring a module, configured to configure a parameter corresponding to the INTL pin in the internal register, so that the INTL pin responds to the state of the RXLOS.

Optionally, the device further includes: a second detecting module, configured to periodically detect a value of the preset enable register, wherein the value of the enable register is used to indicate that the second detecting module or system occupies IIC bus; The first detecting module is configured to: when the value of the enable register indicates that the second detecting module occupies the IIC bus, the second detecting module occupies the IIC bus, and detects the INTL pin Level value.

Optionally, the method further includes an occupancy module configured to occupy the IIC bus by the system when the value of the enable register indicates that the system occupies the IIC bus.

According to another aspect of the present invention, there is also provided an apparatus for reporting a received signal loss alarm RXLOS, the apparatus comprising: a first register configured to store parameters of an INTL pin external to the QSFP+ optical module, wherein the parameter Configuring to cause the INTL pin to respond to a state of the received signal loss alarm RXLOS; the first processor, coupled to the INTL pin, configured to detect a level value of the INTL pin, according to the level The value determines the state of the RXLOS and reports the status of the RXLOS.

Optionally, the first processor is further configured to read the state of the RXLOS stored in an internal register of the QSFP+ optical module when the state of the RXLOS is a lost state.

Optionally, the apparatus further includes: a second processor configured to periodically detect a value of the preset enable register before detecting the level value, wherein the value of the enable register is used to indicate The second processor or system occupies an IIC bus; when the value of the enable register indicates that the second processor occupies the IIC bus, the second processing device occupies the IIC bus, and detects the INTL a level value of the pin; the first processor is configured to occupy an IIC bus to the INTL pin when the value of the enable register indicates that the level value of the INTL pin is detected The level value is detected.

By the present invention, a level value of an INTL pin external to the QSFP+ optical module is detected, wherein the INTL pin is configured to lose a state of the alarm RXLOS in response to the received signal; determining the RXLOS according to the level value Status; reports the status of the RXLOS. In the prior art, in the Ethernet operation, the system cannot report the RXLOS state of the QSFP+ optical module normally, and the effect of rapidly changing the state of the RXLOS of the QSFP+ optical module is achieved.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flowchart of a method for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention;

2 is a structural block diagram of an apparatus for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention;

3 is a block diagram 1 showing a preferred structure of an apparatus for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention;

4 is a block diagram 2 of a preferred structure of an apparatus for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention;

5 is a block diagram 3 of a preferred structure of an apparatus for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention;

6 is a structural block diagram of an apparatus for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention;

7 is a block diagram 1 showing a preferred structure of a device for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention;

FIG. 8 is a schematic flowchart of configuring an internal register of a QSFP+ optical module according to a preferred embodiment of the present invention; FIG.

9 is a schematic flow chart of logic device detecting a RXLOS state of a QSFP+ optical module and reading a RXLOS state register according to a preferred embodiment of the present invention;

FIG. 10 is a schematic flowchart of a system operation of an internal register of a QSFP+ optical module according to a preferred embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

In this embodiment, a method for reporting a received signal loss alarm RXLOS is provided. FIG. 1 is a flowchart of a method for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention. As shown in FIG. 1, the process includes the following steps:

Step S102, detecting a level value of an INTL pin external to the QSFP+ optical module, wherein the INTL pin is configured to lose a state of the alarm RXLOS in response to the received signal;

Step S104, determining a state of the RXLOS according to the level value;

In step S106, the status of the RXLOS is reported.

Through the above steps, by periodically detecting the level value of the INTL pin configured to respond to the state of the received signal loss alarm RXLOS, determining the state of the RXLOS according to the level value and reporting the state of the RXLOS, In the Ethernet technology, the system cannot report the RXLOS status of the QSFP+ optical module normally, and the RXLOS state change of the QSFP+ optical module can be quickly captured.

Optionally, when the state of the RXLOS is in a lost state, the state of the RXLOS stored in the internal register of the QSFP+ optical module is read. In the above step S104, the RXLOS state is indirectly fed back according to the logic device detecting the level of the INTL pin. For example, when the RXLOS is in the lost state, it indicates that the QSFP+ optical module has an alarm. At this time, the INTL pin is low, that is, INTL=0. When the RXLOS is not lost, it indicates that the QSFP+ optical module has no alarm. The pin is high, ie INTL=1.

Optionally, before step S102, the method further includes: configuring a parameter corresponding to the INTL pin in the internal register, so that the INTL pin responds to the state of the RXLOS. There are various parameters for configuring the INTL pin. Preferably, for example, 1) write 0xf0 to the register with address 100 in the internal page0 of the QSFP+ optical module; 2) register all the addresses in the internal page0 of the QSFP+ optical module from 101 to 106. Write 0xff; 3) Write all the registers with addresses 242 to 253 in page 3 of the QSFP+ optical module to 0xff.

After the above configuration, the corresponding alarms in the QSFP+ optical module are disabled except for the RXLOS status alarm. The remaining alarms are all blocked. That is, the INL pin of the QSFP+ optical module only responds to the RXLOS status. When the RXLOS status is lost, the INTL pin is used. The output will be low, and the INTL pin will output a normal high level when the RXLOS state is not lost. The external circuit only needs to monitor the state of the INTL pin to get a loss of RXLOS.

Optionally, before step S102, the method further includes: periodically detecting a value of the preset enable register, where the value of the enable register is used to indicate that the detecting device or the system occupies the IIC bus;

When the value of the enable register indicates that the detecting device occupies the IIC bus, the detecting device occupies the IIC bus and periodically detects the level value of the INTL pin; when the value of the enable register indicates that the system occupies the IIC bus, the system occupies the IIC bus.

In the embodiment of the present invention, preferably, the enable register CHECK_EN is used by the logic device to detect the RXLOS state process and the system operates the QSFP+ optical module process time module IIC bus chip select signal. When the CHECK_EN is 1, the logic device detects the RXLOS state process and occupies the light. The module IIC bus, on the other hand, when CHECK_EN is 0, the system occupies the optical module IIC bus to operate the QSFP+ optical module.

In this embodiment, an RXLOS device for reporting a received signal loss alarm is also provided. The device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" can implement software for a predetermined function.

2 is a structural block diagram of a device for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention. As shown in FIG. 2, the device includes: a first detecting module 22 configured to detect a level of an INTL pin external to the QSFP+ optical module. a value, wherein the INTL pin is configured to be responsive to the status of the received signal loss alarm RXLOS; the determining module 24 is configured to determine the state of the RXLOS based on the level value; the reporting module 26 is configured to report the status of the RXLOS.

3 is a block diagram of a preferred structure for reporting a received signal loss alarm RXLOS device according to an embodiment of the present invention. As shown in FIG. 3, the device includes a read clear module 32, which is configured to include, in addition to all the modules shown in FIG. When the state of RXLOS is lost, the state of RXLOS stored in the internal register of the QSFP+ optical module is read.

4 is a block diagram 2 of a preferred structure for reporting a received signal loss alarm RXLOS device according to an embodiment of the present invention. As shown in FIG. 4, the device includes, in addition to all the modules shown in FIG. 2, a configuration module 42 configured to Configure the parameters corresponding to the INTL pin in the internal register so that the INTL pin responds to the state of RXLOS.

5 is a block diagram 3 of a preferred structure for reporting a received signal loss alarm RXLOS device according to an embodiment of the present invention. As shown in FIG. 5, the device includes: a second detection module 52, in addition to all the modules shown in FIG. Set to periodically detect the value of the preset enable register, wherein the value of the enable register is used to indicate that the second detection module or system occupies the IIC bus;

The first detecting module 22 is configured to detect that the second detecting module 52 occupies the IIC bus when the value of the enabling register indicates that the second detecting module 52 occupies the IIC bus, and detects the level value of the INTL pin.

The occupancy module 54 is configured to occupy the IIC bus by the system when the value of the enable register indicates that the system is occupying the IIC bus.

The present invention further provides a RXLOS device for reporting a received signal loss alarm. FIG. 6 is a structural block diagram of a RXLOS device for reporting a received signal loss alarm according to an embodiment of the present invention. As shown in FIG. 6, the device includes: a first register 62, Set to store parameters of the INTL pin 64 external to the QSFP+ optical module, wherein the parameters are configured to cause the INTL pin 64 to respond to the state of the received signal loss alarm RXLOS;

The first processor 66 is connected to the INTL pin and configured to detect the level value of the INTL pin, determine the state of the RXLOS according to the level value, and report the state of the RXLOS.

Optionally, the first processor 66 is further configured to read the state of the RXLOS stored in the internal register of the QSFP+ optical module when the state of the RXLOS is a lost state.

FIG. 7 is a block diagram showing a preferred structure of a device for reporting a received signal loss alarm RXLOS according to an embodiment of the present invention. As shown in FIG. 7, the device further includes: a second processor 72 configured to periodically before detecting a level value. Detecting a value of a preset enable register, wherein the value of the enable register is used to indicate that the second processor or system occupies the IIC bus;

When the value of the enable register indicates that the second processor 72 is occupying the IIC bus, the second processor 72 occupies the IIC bus and detects the level value of the INTL pin.

For a better description of the above embodiments, the following description will be made in conjunction with the preferred embodiments.

The purpose of the preferred embodiment of the present invention is to provide a method for implementing normal fast reporting of the RXLOS interrupt of the QSFP+ optical module. The method is simple, flexible, and easy to implement, and does not affect the normal high-speed operation of the entire system.

In order to achieve the above object, a preferred embodiment of the present invention discloses a method for implementing a normal fast reporting of a QSFP+ optical module RXLOS interrupt. The technical solutions adopted by the present invention include:

Step S202: Configure the QSFP+ optical module internal register through the IIC bus, and configure the external INTL pin of the QSFP+ optical module to respond only to the RXLOS status register.

Step S204: The logic device automatically detects the RXLOS state of the QSFP+ optical module through the IIC bus. When the RXLOS state is lost, the logic device automatically reads the RXLOS status register until the RXLOS state is not lost.

Step S206: Add a logic device to detect the RXLOS state enable register CHECK_EN to avoid the IIC bus conflict between the system suddenly operating the optical module internal register and the logic detection.

The step S202 mainly includes:

1) Write 0xf0 to the register with address 100 in the internal page0 of the QSFP+ optical module.

2) Write all the registers with addresses 101 to 106 in the internal page0 of the QSFP+ optical module to 0xff.

3) Write all the registers with addresses 242 to 253 in page 3 of the QSFP+ optical module to 0xff.

Wherein, in step S204, the logic device detects that the RXLOS state is indirectly determined according to the level of the INTL pin. According to the configuration process in step S202, when the RXLOS is in the lost state, it indicates that the QSFP+ optical module has an alarm, that is, INTL=0; when the RXLOS is not lost, it indicates that the QSFP+ optical module has no alarm, that is, INTL=1. The RXLOS state can be obtained indirectly by detecting the INTL pin level state.

Wherein, in step S204, when the logic device detects that the RXLOS state is locked to be lost (ie, INTL=0), the logic device will automatically read the RXLOS status register and then start detecting the RXLOS state until it detects that the RXLOS state is not lost (ie, INTL=1).

Wherein, in step S206, the enable register CHECK_EN is a logic device detecting RXLOS state process and a system operation QSFP+ optical module process time optical module IIC bus chip select signal. When CHECK_EN is 1, the logic device detects the RXLOS state process and occupies the optical module IIC bus. Conversely, when CHECK_EN is 0, the system occupies the optical module IIC bus to operate the QSFP+ optical module. CHECK_EN is set to 1 by default, that is, the logic detection process occupies the QSFP+ optical module IIC bus, automatically detects the RXLOS state, and then reads the RXLOS status register operation; when the system needs to use the IIC bus to operate the QSFP+ optical module internal registers, the system first needs to The enable register CHECK_EN is set to 0, and the logic device automatic detection function is turned off. At this time, the logic device stops automatically detecting, releasing the IIC bus to the system, and then the system starts to operate the QSFP+ optical module internal register, after the system completes the QSFP+ optical module internal register operation. The system then sets the enable register CHECK_EN to 1, releasing the IIC bus to the detection logic, and the logic device resumes automatically detecting the RXLOS state.

In order to more clearly explain and explain the above-described steps of a preferred embodiment of the present invention, the above-described methods employed in the preferred embodiments of the present invention are described in detail.

The basic idea of the present invention is to configure the QSFP+ optical module internal register to indirectly characterize the RXLOS state through the state of the INTL pin; then use logic to automatically detect and read the lock to the lost RXLOS state, so that the RXLOS state change can be fast. It is perceived, and the interrupt is reported to the system for timely response and processing. At the same time, in order to avoid the system operation QSFP+ optical module internal register and logic automatically detect and read the IIC bus conflict between QSFP+ internal RXLOS state, add an enable register CHECK_EN.

The present invention will be further described in detail with reference to the drawings and specific embodiments.

FIG. 8 is a schematic diagram of a process of configuring an internal register of a QSFP+ optical module according to a preferred embodiment of the present invention, as shown in FIG. The detailed configuration process is:

Step S302: De-reset the QSFP+ optical module;

The RESET pin is pulled high. Normally, the optical module is reset to the default state when it is powered on.

Step S304: Pull the QSFP+ optical module MODSEL pin low;

Wherein, this step is for the QSFP+ optical module to respond to the IIC bus;

Step S306: delay 2s;

According to the SFF 8436 protocol, the QSFP+ optical module needs to complete the de-reset process for a maximum of 2s, and the delay is 2s, so that the optical module fully completes the reset.

Step S308: CHECK_EN is set to 0, the logic automatic detection function is turned off, and the system occupies the IIC bus for operation;

Step S310: Write 0xf0 to the register with address 100 in the internal page0 of the QSFP+ optical module;

Step S312: Write all the registers with addresses 101 to 106 in the internal page 0 of the QSFP+ optical module to 0xff;

Step S314: Write all the registers with addresses 242 to 253 in the internal page 3 of the QSFP+ optical module to 0xff;

Step S316: CHECK_EN is set to 0, and the logic automatic detection function is turned on.

The above steps S310, S312, and S314 are the most critical, and the corresponding alarms in the QSFP+ optical module are turned on except the RXLOS state alarm, and the remaining alarms are all shielded, that is, the INTL pins of the QSFP+ optical module are implemented after the three steps are implemented. Only respond to the RXLOS state. When the RXLOS state is a loss alarm, the INTL pin will output a low level. When the RXLOS state is not lost, the INTL pin will output a normal high level. The external circuit only needs to monitor the state of the INTL pin to get a loss of RXLOS.

FIG. 9 is a flow chart showing the logic device detecting the RXLOS state of the QSFP+ optical module and reading the RXLOS status register according to a preferred embodiment of the present invention, as shown in FIG. 2.

Step S402: The logic internally scans the value of the CHECK_EN register at a high speed frequency. When it is detected that the value of the CHECK_EN register is 1, the process proceeds to step S404, otherwise, the process proceeds to step S402, and the value of the CHECK_EN register is repeatedly scanned.

Step S404: detecting whether the RXLOS state is a loss; that is, whether the state of the INTL pin is a low level;

When the RXLOS state is lost, that is, the INTL pin is low, the process proceeds to step S406. Otherwise, the RXLOS state is not locked and lost, and the RXLOS status register does not need to be read. At this time, the process returns to step S402, and the CHECK_EN is rescanned. The value of the register;

Step S406: The logic internally starts to initiate the command to automatically read the RXLOS status register (0x3 address in page0) inside the QSFP+ optical module through the IIC bus, and after the operation is completed, return to step S402 again;

In this way, through the above-mentioned continuous scanning and reading the RXLOS state operation, when the RXLOS changes from the lost lock to the unaltered state, it can be quickly detected, and the RXLOS interrupt is normally reported quickly.

Since the QSFP+ optical module only has a set of IIC buses to access its internal registers, the system operates the QSFP+ optical module internal registers and the logic automatically reads the RXLOS status registers using the same set of IIC buses. In order to avoid the system operation QSFP+ optical module internal registers and logic automatically read the IIC bus conflict between the RXLOS registers, a detection enable register CHECK_EN is added. FIG. 10 is a schematic flowchart of a system operation of an internal register of a QSFP+ optical module according to a preferred embodiment of the present invention, as shown in FIG.

Step S1002: When the system does not need to operate the QSFP+ optical module internal register, the detection enable register CHECK_EN defaults to 1, that is, the logic detection occupies the IIC bus by default;

Step S1004: When the system needs to operate the QSFP+ optical module internal register, the system first sets CHECK_EN to 0, and the logic detects and releases the QSFP+ optical module IIC bus to the system operation;

Step S1006: After the system operation is completed, the system sets CHECK_EN to 1, and returns the QSFP+ optical module IIC bus to the logical detection occupation.

Among them, the system can control the value of the write enable register CHECK_EN at any time, so the system can operate the internal register of the QSFP+ optical module at any time.

With the method of the preferred embodiment of the present invention, the RXLOS state change of the QSFP+ optical module can be quickly captured, and the RXLOS interrupt is normally reported quickly. The invention adopts the logic to detect the RXLOS state and automatically read the RXLOS lock state method, which not only does not affect the normal operation of the system, and the logic detection hardly occupies the system resources, adds an enable register, avoids the IIC bus conflict problem, and the system can operate the QSFP+ at any time. The internal registers of the optical module improve the working efficiency of the system and facilitate the fast switching of the link in the Ethernet application by the QSFP+ optical module.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

As described above, the above embodiments and the preferred embodiments solve the problem that the system cannot report the RXLOS state of the QSFP+ optical module in the Ethernet operation in the prior art, and the effect of quickly capturing the state change of the RXLOS of the QSFP+ optical module is achieved. .

Claims

A method for reporting a received signal loss alarm RXLOS, comprising:

Detecting a level value of an INTL pin external to the QSFP+ optical module, wherein the INTL pin is configured to lose a state of the alarm RXLOS in response to the received signal;

Determining a state of the RXLOS according to the level value;

Report the status of the RXLOS.
The method of claim 1 further comprising:

When the state of the RXLOS is a lost state, the state of the RXLOS stored in the internal register of the QSFP+optical module is read.
The method according to claim 1, wherein before detecting the level value of the INTL pin outside the QSFP+ optical module, the method further comprises:

The parameters corresponding to the INTL pin in the internal register are configured such that the INTL pin responds to the state of the RXLOS.
The method according to claim 1, wherein before detecting the level value of the INTL pin outside the QSFP+ optical module, the method further comprises:

Periodically detecting a value of a preset enable register, wherein the value of the enable register is used to indicate that the detecting device or system occupies the IIC bus;

When the value of the enable register indicates that the detecting device occupies the IIC bus, the detecting device occupies the IIC bus and detects a level value of the INTL pin.
The method of claim 4, further comprising:

The IIC bus is occupied by the system when the value of the enable register indicates that the system is occupying the IIC bus.
A device for reporting a received signal loss alarm RXLOS, comprising:

a first detecting module configured to detect a level value of an INTL pin external to the QSFP+ optical module, wherein the INTL pin is configured to lose a state of the alarm RXLOS in response to the received signal;

Determining a module, configured to determine a state of the RXLOS according to the level value;

The reporting module is configured to report the status of the RXLOS.
The apparatus of claim 6 further comprising:

The read module is configured to read the state of the RXLOS stored in the internal register of the QSFP+ optical module when the state of the RXLOS is in a lost state.
The apparatus of claim 6 further comprising

The configuration module is configured to configure a parameter corresponding to the INTL pin in the internal register, so that the INTL pin responds to the state of the RXLOS.
The apparatus according to claim 6, wherein

The device further includes a second detecting module configured to periodically detect a value of the preset enable register, wherein the value of the enable register is used to indicate that the second detecting module or system occupies an IIC bus;

The first detecting module is configured to: when the value of the enable register indicates that the second detecting module occupies the IIC bus, the second detecting module occupies the IIC bus, and detects the INTL pin Level value.
The apparatus according to claim 9, further comprising

The occupancy module is configured to occupy the IIC bus by the system when the value of the enable register indicates that the system is occupying the IIC bus.
A device for reporting a received signal loss alarm RXLOS, comprising:

a first register, configured to store a parameter of an INTL pin external to the QSFP+ optical module, wherein the parameter is configured to cause the INTL pin to respond to a state of the received signal loss alarm RXLOS;

The first processor is connected to the INTL pin, and is configured to detect a level value of the INTL pin, determine a state of the RXLOS according to the level value, and report a status of the RXLOS.
The apparatus of claim 11, wherein the first processor is further configured to read a state of the RXLOS stored in an internal register of the QSFP+ optical module when the state of the RXLOS is a lost state.
The device according to claim 11 or 12, wherein

The apparatus further includes: a second processor configured to periodically detect a value of the preset enable register before detecting the level value, wherein the value of the enable register is used to indicate the second The processor or system occupies the IIC bus;

When the value of the enable register indicates that the second processor occupies the IIC bus, the second processor occupies the IIC bus, and detects a level value of the INTL pin;

The first processor is configured to: when the value of the enable register indicates that the level value of the INTL pin is detected, occupy an IIC bus to detect a level value of the INTL pin.