CN110557693A - Optical network protocol analyzer - Google Patents
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- CN110557693A CN110557693A CN201910914276.3A CN201910914276A CN110557693A CN 110557693 A CN110557693 A CN 110557693A CN 201910914276 A CN201910914276 A CN 201910914276A CN 110557693 A CN110557693 A CN 110557693A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
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Abstract
The application provides an optical network protocol analyzer, comprising: FGPA module, and CPU chip; the FPGA module is respectively connected with a first optical communication module, a second optical communication module and a third optical communication module which are used for being in communication connection with a link of an optical network in a bidirectional mode; the third optical communication module is used for receiving an optical signal from the link for link state detection; the first optical communication module supports XGPON and/or XGSPON and/or 10G EPON, the second optical communication module supports GPON and/or EPON, and the first optical communication module and the second optical communication module are used for outputting optical signals received by the third optical communication module to the link. The configuration of the application adopts the flow processing performance of a high-performance CPU processor, and the high-performance FPGA module is compatible with various access modes of GPON/EPON/XGPON/XGSPON/10GEPON, and meanwhile, the structure is small and flexible, so that the application can be applied to line serial/parallel connection of FTTx and Ethernet environments, data monitoring and attack are carried out on some users under the link, and great convenience is brought to the protection of domestic/foreign network safety and digital evidence obtaining.
Description
Technical Field
The application relates to the technical field of passive optical networks, in particular to an optical network protocol analyzer.
Background
With the rapid development of services such as online on-demand, online education, IPTV, 4K video, virtual reality and the like in recent years, the demand of people for bandwidth is rapidly increased. The original GPON/EPON access network can not meet the service requirements of users, the 10G PON technology gradually becomes the mainstream technology of the PON network, and the FTTx (various optical fiber communication networks) access network environment of each large operator at present is gradually upgraded from the G/EPON to the XGPON/10G EPON, so that the problem that the existing equipment cannot be accessed and the data acquisition and monitoring of all services are needed to be solved due to the fact that the FTTx access network environment is suitable for the network upgrade of the operator.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by the present application is to provide an optical network protocol analyzer for solving the problems in the prior art.
To achieve the above and other related objects, the present application provides an optical network protocol analyzer, comprising: FGPA module, and CPU chip; the FPGA module is respectively connected with a first optical communication module, a second optical communication module and a third optical communication module which are used for being in communication connection with a link of an optical network in a bidirectional mode; wherein the third optical communication module is configured to receive an optical signal from the link for link state detection; the first optical communication module supports XGPON and/or XGSPON and/or 10G EPON, the second optical communication module supports GPON and/or EPON, and the first optical communication module and the second optical communication module are used for outputting optical signals received by the third optical communication module to the link.
In an embodiment of the present application, the first optical communication module and the second optical communication module transmit the received optical signal to the ONU device through a splitter or a wavelength division card.
In an embodiment of the present application, a plurality of bidirectional data transmission channels supporting at least 10G are connected between the FGPA module and the CPU chip.
In an embodiment of the present application, the FGPA module and the CPU chip provide a management channel through respective SPI interfaces; and the FGPA module and the CPU chip are respectively and correspondingly reserved with a plurality of PCIE interfaces.
In an embodiment of the present application, the CPU chip is connected to at least one SFP optical module.
In an embodiment of the present application, the CPU chip is further connected to at least one network management port.
In an embodiment of the present application, the optical network protocol analyzer is divided into: any one of a hand-held type, a mobile terminal type, and a terminal type.
In an embodiment of the present application, the onu is connected in series in the link or connected in parallel in the link through the optical splitter.
In an embodiment of the present application, a first portion of light split by the optical splitter is used to transmit an optical signal in an original link, and a second portion of light split by the optical splitter is provided for output to the optical network protocol analyzer.
In an embodiment of the present application, a link of the optical network is communicatively connected between the OLT device and the ONU device, and the optical network protocol analyzer includes: at least one ONU port for communicating with one side of the OLT equipment and at least one OLT port for communicating with one side of the ONU equipment; further comprising: any one or more of at least one local communication and charging interface, at least one wireless charging module and at least one wireless communication module.
As described above, the present application provides an optical network protocol analyzer, including: FGPA module, and CPU chip; the FPGA module is respectively connected with a first optical communication module, a second optical communication module and a third optical communication module which are used for being in communication connection with a link of an optical network in a bidirectional mode; wherein the third optical communication module is configured to receive an optical signal from the link for link state detection; the first optical communication module supports XGPON and/or XGSPON and/or 10G EPON, the second optical communication module supports GPON and/or EPON, and the first optical communication module and the second optical communication module are used for outputting optical signals received by the third optical communication module to the link. Has the following beneficial effects:
Configuring the flow processing performance of a high-performance CPU (Central processing Unit) and the compatibility of a high-performance FPGA (field programmable Gate array) module with various access modes of GPON/EPON/XGPON/XGSPON/10 GEPON; meanwhile, the structure is small and flexible, and the PCIE interface with the card-inserting design can be directly inserted into a server for use and can also be used for single-service card access and system integration; the multi-core CPU processor can be customized, has multiple functions, is convenient and flexible to expand, can be applied to line serial/parallel connection of FTTx and Ethernet environments, can be used for data monitoring and attacking certain users under a link, and brings great convenience for protecting domestic/foreign network security and digital evidence obtaining.
Drawings
Fig. 1 is a schematic diagram of a connection structure of an optical network protocol analyzer in an embodiment of the present application accessing an optical network.
Fig. 2 is a schematic diagram illustrating a connection structure of an optical network protocol analyzer accessing an optical network according to an embodiment of the present application.
Fig. 3 is a schematic diagram illustrating a connection structure of an optical network protocol analyzer accessing an optical network according to another embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Embodiments of the present application will be described in detail below with reference to the accompanying drawings so that those skilled in the art to which the present application pertains can easily carry out the present application. The present application may be embodied in many different forms and is not limited to the embodiments described herein.
In order to clearly explain the present application, components that are not related to the description are omitted, and the same reference numerals are given to the same or similar components throughout the specification.
Throughout the specification, when a component is referred to as being "connected" to another component, this includes not only the case of being "directly connected" but also the case of being "indirectly connected" with another element interposed therebetween. In addition, when a component is referred to as "including" a certain constituent element, unless otherwise stated, it means that the component may include other constituent elements, without excluding other constituent elements.
When an element is referred to as being "on" another element, it can be directly on the other element, or intervening elements may also be present. When a component is referred to as being "directly on" another component, there are no intervening components present.
Although the terms first, second, etc. may be used herein to describe various elements in some instances, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are described. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "A, B or C" or "A, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the singular forms "a", "an" and "the" include plural forms as long as the words do not expressly indicate a contrary meaning. The term "comprises/comprising" when used in this specification is taken to specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but does not exclude the presence or addition of other features, regions, integers, steps, operations, elements, and/or components.
terms indicating "lower", "upper", and the like relative to space may be used to more easily describe a relationship of one component with respect to another component illustrated in the drawings. Such terms are intended to include not only the meanings indicated in the drawings, but also other meanings or operations of the device in use. For example, if the device in the figures is turned over, elements described as "below" other elements would then be oriented "above" the other elements. Thus, the exemplary terms "under" and "beneath" all include above and below. The device may be rotated 90 or other angles and the terminology representing relative space is also to be interpreted accordingly.
Without addressing at least one of the problems of the prior art, the present application provides an optical network protocol analyzer. The optical network protocol analyzer is based on an FPGA module and is used for being compatible with various network access environments such as GPON, EPON, XGPON, XGSPON, 10GEPON and the like of OLT equipment and ONU equipment of all mainstream manufacturers.
Fig. 1 is a schematic diagram illustrating a connection structure of an optical network protocol analyzer 100 accessing an optical network according to an embodiment. As shown, the optical network protocol analyzer 100 includes: FGPA module 110, CPU chip 120.
In this embodiment, a plurality of bidirectional data transmission channels supporting at least 10G are connected between the FGPA module 110 and the CPU chip 120.
In the above embodiment, corresponding to the internal interface of the optical network protocol analyzer 100, preferably, at least 4 × 10G data transmission channels are provided between the FGPA module 110 and the CPU chip 120.
The FGPA module 110 and the CPU chip 120 provide management channels through their respective SPI interfaces; and the FGPA module and the CPU chip are respectively and correspondingly reserved with a plurality of PCIE interfaces. Specifically, a Serial Peripheral Interface (SPI) interface is adopted in a management channel between the two, and 8 PICE interfaces are reserved. Among them, pcie (peripheral component interconnect express) is a high-speed serial computer expansion bus standard.
In this embodiment, at least one SFP optical module 121 is connected to the CPU chip 120. The CPU chip is also connected to at least one network management port 122.
Optionally, the CPU chip 120 may provide a plurality of GE/XE compatible SFP optical modules 121 (optical interfaces), for example, 2 for the front panel and 2 for the rear panel. Multiple network management ports 122 may be provided, such as front panel 1, back panel 1, e.g., mgmt interface or console interface.
Optionally, the CPU chip 120 may be of CN7230 type. The CPU chip 120 may be connected to the FGPA module 110, and utilize the first optical communication module 111, the second optical communication module 112, and the third optical communication module 113 to perform analysis according to the received optical signal, for example, extract ONU reporting information from the optical signal and analyze the ONU reporting information to obtain a link detection result.
In the above embodiment, the functions that the CPU chip 120 can support include: maintaining an ONU device state machine through FPGA module 110; configuring an interface based on ONU MAC/SN filtration; data analysis, namely realizing data forwarding through a quintuple filtering interface; recombining the message and returning the message to a channel; user management, the socket interface is converted into FPGA module 110 configuration; managing an optical module; upgrading of the FPGA module 110, version switching, and the like.
In this embodiment, the FPGA module 110 is bi-directionally connected to a first optical communication module 111, a second optical communication module 112, and a third optical communication module 113 for communicatively connecting to a link of an optical network.
Wherein, the third optical communication module 113 is configured to receive an optical signal from the link for performing link status detection, and the third optical communication module 113 supports a Combo OLT, where the Combo interface refers to two ethernet interfaces (usually, one is an optical port and one is an electrical port) on the device panel; the first optical communication module 111 supports XGPON and/or XGSPON and/or 10GEPON and the second optical communication module 112 supports GPON and/or EPON, both of which are used to output optical signals received by the third optical communication module 113 to the link.
Further, a link of the optical network is communicatively connected between the OLT device and the ONU device, and the optical network protocol analyzer includes: at least one ONU port for communicating with the OLT device side and at least one OLT port for communicating with the ONU device side.
Correspondingly, the first optical communication module 111 and the second optical communication module 112 are respectively connected with at least one ONU port 115 for communicating with the OLT device side; at least one OLT port 116 for communicating with the ONU device is correspondingly connected to the third optical communication module 113.
In this embodiment, the first optical communication module 111 and the second optical communication module 112 transmit the received optical signal to the ONU device through a splitter or a splitter card 114.
In the above embodiment, the first optical communication module 111 for supporting XGPON and/or XGSPON (10G GPON) and/or 10G EPON is added on the basis of the second optical communication module 112 for supporting GPON and/or EPON network environment, that is, multiple GPON/EPON/XGPON/XGSPON/10G EPON compatible access network modes are implemented.
In the above embodiment, the functions that the FPGA module 110 can support include: providing conversion from XGPON/GPON XGSPON/GPON Combo mode protocol processing to Ethernet, and providing conversion from 10GEpon asymmetry/EPON 10GEPON symmetry/GPON Combo mode protocol processing to Ethernet; the GPON/EPON mode is based on gem/llid data mirroring and forwarding and blocking interfaces. Aiming at the problem that the effective gem/llid open register bitmap avoids the problem of long time for cpu round training phenotype; an uplink and downlink packet insertion interface based on the gem/llid; supporting data mirror image encapsulation tpid domain and insertion decapsulation interface; supporting logic mapping relation table items based on the oneid, the gemid and the alloid; supporting uplink and downlink fec functions; supporting the aes/triple stirring decryption function; supporting GTC physical overhead, OMCI, OAM, MPCP message mirror image and tpid domain encapsulation; and supporting single onu omci filtering and message recombination.
The PON is a typical passive optical network, which means that (in an optical distribution network) the PON does not contain any electronic devices and electronic power sources, and the ODN is composed of all passive devices such as an optical Splitter (Splitter), and does not need expensive active electronic devices. A passive optical network includes an Optical Line Terminal (OLT) mounted to a central control station and a plurality of associated Optical Network Units (ONUs) mounted to subscriber sites.
EPON (Ethernet Passive Optical Network ), as the name implies, is an Ethernet-based PON technology. It adopts point-to-multipoint structure and passive optical fibre transmission, and provides several services on the Ethernet. EPON technology is standardized by the IEEE802.3EFM working group. The IEEE802.3EFM working group released the EPON standard IEEE802.3ah (the IEEE802.3-2005 standard was incorporated in 2005) 6.2004. In the standard, ethernet and PON technologies are combined, a PON technology is adopted in a physical layer, an ethernet protocol is used in a data link layer, and ethernet access is realized by using a topology structure of a PON. Therefore, it combines the advantages of PON technology and ethernet technology: low cost, high bandwidth, strong expansibility, compatibility with the existing Ethernet, convenient management and the like.
The GPON (Gigabit-Capable Passive Optical Networks) technology is a latest generation broadband Passive Optical integrated access standard based on ITU-t g.984.x standard, has numerous advantages of high bandwidth, high efficiency, large coverage area, rich user interfaces and the like, and is considered as an ideal technology for realizing broadband and comprehensive transformation of access network services by most operators. GPON was originally proposed by FSAN organization in 9.2002, and ITU-T completed the formulation of ITU-T G.984.1 and G.984.2 in 3.2003 on this basis, and completed the standardization of G.984.3 in 2 and 6.2004. Thus eventually forming a standard family of GPONs. The technical characteristic of GPON is that the technology of GFP (Generic Framing Procedure) defined by ITU-T is used for reference at the second layer, the GEM (general Encapsulation methods) Encapsulation format is extended and supported, services of any type and any rate are transmitted by PON after being recombined, and the GFM frame header comprises a frame length indication byte which can be used for transmitting a variable-length data packet, so that the transmission efficiency is improved, and the full service can be supported more simply, universally and efficiently.
The GPON technology adopts the same network topology structure as APON and EPON, and is mainly divided into three parts, namely ONU, ODN and OLT.
The OLT provides an interface between a network side and a core network for the access network and is connected with each ONU through the ODN. As a core function device of the PON system, the OLT has functions of centralized bandwidth allocation, controlling each ONU, real-time monitoring, and operation, maintenance, and management of the PON system. The ONU provides an interface of a user side for the access network, provides access of multiple service flows of voice, data, video and the like and the ODN, and is controlled by the OLT in a centralized way. The transmission mechanism of GPON is completely the same as that of EPON, a single-fiber bidirectional transmission mechanism is adopted, and the uplink and downlink data are transmitted by different wavelengths on the same optical fiber by using WDM technology. GPONs can use Wavelength Division Multiplexing (WDM) technology to enable bidirectional transmission of signals on the same fiber. According to actual needs, a corresponding PON protection structure can be adopted on the basis of the traditional tree topology to improve the survivability of the network.
The OLT is used for sending Ethernet data to the ONU (optical network unit) in a broadcast mode, initiating and controlling a ranging process, recording ranging information and allocating bandwidth to the ONU; i.e. to control the start time and the size of the transmission window for the ONU to transmit data.
An ONU (optical Network unit) is divided into an active optical Network unit and a passive optical Network unit. A device equipped with a network monitoring comprising an optical receiver, an upstream optical transmitter, a plurality of bridged amplifiers is generally called an optical node. The PON uses a single fiber to connect to the OLT, which then connects to the ONUs. The ONU provides data, IPTV (interactive network television), voice (using IAD (Integrated Access Device) and other services, and truly realizes triple-play application.
In some embodiments, the optical network protocol analyzer 100 may be interfaced into a link of an optical network. In one or more embodiments, the optical network is preferably a PON network architecture, i.e., a passive optical network, such as an EPON, GPON, or the like; the optical network comprises an OLT device, an ONU device and an ODN network in communication connection, and for the passive optical network, optical devices (such as an optical splitter, an optical splitter and the like) in the ODN network are all passive devices; the link is located in the ODN network.
Optionally, each OLT device may communicate with multiple ONU devices through an optical splitter.
And the optical network protocol analyzer 100 is used for accessing the link to obtain an optical signal and detecting the optical signal according to the optical signal. In some embodiments, the optical network protocol analyzer 100 may communicate with the link by connecting to ports of the OLT device, the ONU device, or optics in the link; the optical network protocol analyzer 100 may be connected to a link section before an optical splitter, or may be connected to a link section of a branch where any ONU device is located after the optical splitter.
fig. 2 is a schematic diagram illustrating a connection structure of the optical network protocol analyzer 220 accessing the optical network according to an embodiment.
In this embodiment, the onu 220 accesses the link in a serial manner. Specifically, the OLT port 221 connected by the third optical communication module 113 in fig. 1 in the optical network protocol analyzer 220 is correspondingly connected to the optical fiber segment from the OLT device 210 side, and at least one ONU port 222 connected by the first optical communication module 111 and/or the second optical communication module 112 in fig. 1 in the optical network protocol analyzer 220 is correspondingly connected to the optical fiber segment to the ONU device 230 side, so as to be connected in series into the link.
In the case of a single fiber link, the OLT port 221 and the ONU port 222 may serve as both an input interface and an output interface, so that a downlink optical signal transmitted by the OLT device 210 to the ONU device 230 may be acquired, and an uplink optical signal transmitted by the ONU device 230 to the OLT device 210 may also be acquired.
It is understood that if a multi-fiber link is adopted, for example, different fibers implement uplink and downlink, there may be two pairs of the OLT port 221 and the ONU port 222 (or two pairs of the first optical communication module 111, the second optical communication module 112, and the third optical communication module 113 in fig. 1), and two pairs of interfaces respectively access the uplink and the downlink.
Since the optical network protocol analyzer 220 is connected in series in the link, the received optical signal needs to be forwarded through the first optical communication module 111, the second optical communication module 112, and the third optical communication module 113 in fig. 1, so as to avoid affecting the link communication.
Referring to fig. 3 again, a schematic diagram of a connection structure of the optical network protocol analyzer 330 accessing the optical network in another embodiment is shown.
In this embodiment, the onu 330 accesses the link in parallel. Specifically, the OLT port 331 of the optical network protocol analyzer 330, which is connected to the third optical communication module 113 in fig. 1, is connected to the optical splitter 320 in the link to obtain an optical signal; at least one ONU port 332 in the optical network protocol analyzer 330, which is connected to the first optical communication module 111 and/or the second optical communication module 112 in fig. 1, may output the obtained optical signal.
For example, the optical splitter 320 splits the optical signal of the original link into a first part of light and a second part of light, and transmits the first part of light as the optical signal in the original link along the original link (to, for example, the OLT device 310 or the ONU device 340); the second part of light is connected to the port of the optical network protocol analyzer 330 through the optical splitter 320 and output to the OLT port 331 of the latter, so as to be received by the optical network protocol analyzer 330
Optionally, the optical network protocol analyzer 330 may output the second part of light to the optical splitter 320 through the ONU port 332, and the second part of light is combined with the first part of light and then continuously transmitted, so as to ensure the communication quality, but there is a certain delay at the optical splitter 320; in other embodiments, the second portion of light may not be transmitted back, which does not cause a communication transmission delay of the link.
In the above embodiment, the optical network protocol analyzer may be configured to extract information from an optical signal, including: the information reported by the ONU comprises the following steps: authentication codes (including authentication codes of MAC, SN authentication, Password authentication, LOID authentication and the like) of ONU equipment in a GPON/EPON network; authentication code information such as LOID/PASSSWORD analyzed by an OMCI message of a GPON network or an OAM message of an EPON network; in addition, the optical network protocol analyzer is used for connecting a third optical communication module at the ONU equipment side, and the uplink burst optical power of the ONU can be obtained in real time through the third optical communication module; the optical network protocol analyzer is used for connecting a first optical communication module and a second optical communication module at the side of OLT equipment, and can acquire downlink optical power of the OLT in real time; in addition, optionally, the optical network protocol analyzer may further control the on/off of the light emission of the third optical communication module, that is, control whether the third optical communication module can emit/receive an optical signal or only receive an optical signal.
In this embodiment, the optical network protocol analyzer is divided into: any one of a hand-held type, a mobile terminal type, and a terminal type.
In a plurality of realizable embodiments, under the condition that the circuit layout environment of the optical network is complex, the optical network protocol analyzer can be designed to be handheld, namely the optical network protocol analyzer is small and flexible in structure, and a PCIE interface designed in a card insertion type can be directly inserted into a server for use; or, when the number of optical network devices to be received is large, the optical network protocol analyzer may be designed to have a larger number of ONU ports or OLT ports, for example, tens or hundreds, and the optical network protocol analyzer may be designed to be a mobile terminal type, a terminating terminal type, or a system integration type.
By portable, it is meant that the volume of the present optical network protocol analyzer may be held by a person in one or both hands. Preferably, the device can be held by a single hand, and the detection personnel can free the other hand to more conveniently carry out field detection operation.
In one or more embodiments of the present application, the advantage of the handheld optical network protocol analyzer can be better demonstrated in a circuit layout environment with complicated optical fiber circuit layout. In the line layout scene, for example, a machine room for laying optical communication equipment (such as ONU equipment and OLT equipment) and the like, the optical fibers are difficult to detect, and the optical communication equipment can be conveniently laid by the optical network protocol analyzer.
In this embodiment, the optical network protocol analyzer further includes: any one or more of at least one local communication and charging interface, at least one wireless charging module and at least one wireless communication module.
In some embodiments, the optical network protocol analyzer may have a wired or wireless communication module, such as one or more of a USB, a microsub interface circuit, a WiFi module, a 3G/4G/5G mobile communication module, a bluetooth module, and the like, and transmit a detection result obtained by analyzing an optical signal by the optical network protocol analyzer to an external terminal 206 (e.g., a mobile terminal, such as a smart phone, a tablet computer, a notebook computer, and the like; or a desktop computer, a server/server group, and the like) shown in fig. 3 through the wired or wireless communication module for display, for example, as shown in fig. 3.
For example, the detection result is sent to the mobile phone through bluetooth, and is displayed in a graphic and text mode through a graphical interface displayed by an APP, an applet, a webpage or the like on the mobile phone; of course, the optical network protocol analyzer may also be provided with a display device, such as a display screen, an indicator light, and the like, and may also display the detection result.
In addition, the optical network protocol analyzer may further include: the wireless network protocol analyzer comprises at least one local communication and charging interface (for example, a Micro USB interface circuit used for being connected with external wired communication and also used for being connected with a power supply to charge a battery (such as a lithium battery) in the optical network protocol analyzer), at least one wireless charging module (for example, a wireless charging coil) and at least one wireless communication module (for example, one or more of a WiFi module, a 3G/4G/5G mobile communication module and a Bluetooth module), wherein optionally, the wireless communication module (such as Bluetooth and the like) can be communicated with a mobile terminal, such as a smart phone, a tablet computer, a notebook computer and the like.
In one or more embodiments of the present application, the internal circuit of the onu can be implemented by a single board, so as to simplify the structure, reduce the size, and achieve the purpose of portability.
in one or more embodiments of the present application, a small heat dissipation fan may be installed in the onu, and configured to blow/suck heat to its main heat generating component (e.g. a processor, such as a CPU, an SOC, an MCU, or an FPGA).
To sum up, the optical network protocol analyzer of the present application includes: FGPA module, and CPU chip; the FPGA module is respectively connected with a first optical communication module, a second optical communication module and a third optical communication module which are used for being in communication connection with a link of an optical network in a bidirectional mode;
Wherein the third optical communication module is configured to receive an optical signal from the link for link state detection; the first optical communication module supports XGPON and/or XGSPON and/or 10G EPON, the second optical communication module supports GPON and/or EPON, and the first optical communication module and the second optical communication module are used for outputting optical signals received by the third optical communication module to the link.
The optical network protocol analyzer adopts the flow processing performance of a high-performance CPU processor, and the high-performance FPGA module is compatible with various access modes of GPON/EPON/XGPON/XGSPON/10 GEPON; meanwhile, the structure is small and flexible, and the PCIE interface with the card-inserting design can be directly inserted into a server for use and can also be used for single-service card access and system integration; the multi-core CPU processor can be customized, has multiple development functions, and is convenient and flexible to expand; the method is applied to line serial/parallel connection in FTTx and Ethernet environments, data monitoring and attack are carried out on some users under the link, and great convenience is brought to protection of domestic/foreign network security and digital evidence obtaining.
The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.
Claims (10)
1. An optical network protocol analyzer, comprising: FGPA module, and CPU chip; the FPGA module is respectively connected with a first optical communication module, a second optical communication module and a third optical communication module which are used for being in communication connection with a link of an optical network in a bidirectional mode;
Wherein the third optical communication module is configured to receive an optical signal from the link for link state detection; the first optical communication module supports XGPON and/or XGSPON and/or 10G EPON, the second optical communication module supports GPON and/or EPON, and the first optical communication module and the second optical communication module are used for outputting optical signals received by the third optical communication module to the link.
2. The ONU protocol analyzer of claim 1, wherein the first optical communication module and the second optical communication module transmit the received optical signal to the ONU device through a splitter or a splitter card.
3. The onu of claim 1, wherein a plurality of bidirectional data transmission channels supporting at least 10G are connected between the FGPA module and the CPU chip.
4. The onu of claim 1, wherein the FGPA module and the CPU chip provide management channels via their respective SPI interfaces; and the FGPA module and the CPU chip are respectively and correspondingly reserved with a plurality of PCIE interfaces.
5. The onu of claim 1, wherein the CPU chip is connected to at least one SFP optical module.
6. The onu of claim 1, wherein the CPU chip is further connected to at least one network management port.
7. The optical network protocol analyzer of claim 1, wherein the optical network protocol analyzer is divided into: any one of a hand-held type, a mobile terminal type, and a terminal type.
8. The onu of claim 1, wherein the onu is connected in series with the link or connected in parallel with the link via an optical splitter.
9. The onu of claim 8, wherein a first portion of the split light from the optical splitter is used to transmit an optical signal in a primary link, and a second portion of the split light is provided for output to the onu.
10. The optical network protocol analyzer of claim 1, wherein the link of the optical network is communicatively coupled between the OLT device and the ONU device, the optical network protocol analyzer comprising: at least one ONU port for communicating with one side of the OLT equipment and at least one OLT port for communicating with one side of the ONU equipment; further comprising: any one or more of at least one local communication and charging interface, at least one wireless charging module and at least one wireless communication module.
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