CN111586246A

CN111586246A - PTM compatible ADSL and VDSL processing method, equipment and medium

Info

Publication number: CN111586246A
Application number: CN202010349789.7A
Authority: CN
Inventors: 马波; 吴闽华; 孟庆晓
Original assignee: Shenzhen Genew Technologies Co Ltd
Current assignee: Shenzhen Genew Technologies Co Ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-08-25
Anticipated expiration: 2040-04-28
Also published as: CN111586246B

Abstract

The invention discloses a processing method, equipment and medium for PTM compatible ADSL and VDSL, the method comprises the steps that a DSP digital signal processor obtains an internet request and determines a dial-up internet access mode; if the dial-up networking mode of the user terminal is determined to be ADSL, the DSP decodes the virtual path identifier/virtual channel identifier field information; mapping the virtual path identifier/virtual channel identifier field information into a first logic id according to a preset first mapping relation, and sending the first logic id to an NPU network chip; the NPU network chip reversely acquires the field information of the virtual path identifier/virtual channel identifier according to the preset first mapping relation, and determines that the forwarding mechanism of the data stream is ADSL, thereby completing the processing supporting the ADSL mode in the PTM transmission mode. The invention can realize that the DSP simultaneously supports ADSL and VDSL modes in the PTM transmission mode without switching the transmission mode of the DSP, thereby improving the internet efficiency.

Description

PTM compatible ADSL and VDSL processing method, equipment and medium

Technical Field

The invention relates to the technical field of communication networks, in particular to a method and equipment for processing PTM compatible ADSL and VDSL.

Background

The communication network is a link for physically connecting each isolated device to realize information exchange between people, between people and computers, and between computers, thereby achieving the purpose of resource sharing and communication.

In the prior art, there are various ways to implement a communication network, and usually, a user operates on the internet in a VDSL manner, and a transmission mode adopted for communication is a PTM transmission mode. However, sometimes, according to different network conditions, the same user needs to switch from VDSL to ADSL, but needs to switch the PTM transmission mode to ATM transmission mode, so the prior art cannot support VDSL and ADSL simultaneously in the same PTM mode, which is inconvenient for the user to use and is also not beneficial to improving the internet efficiency.

Accordingly, there is still a need for development and improvement of the prior art.

Disclosure of Invention

Based on this, the invention provides a processing method, equipment and medium for PTM compatible ADSL and VDSL, in order to solve the technical problem that the operation of VDSL and ADSL can not be realized simultaneously in the same PTM mode in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a PTM-compatible ADSL and VDSL processing method, comprising the steps of:

a DSP digital signal processor of the internet access uplink equipment acquires an internet access request sent by a user terminal and determines a dial-up internet access mode of the user terminal; the network access request carries path information;

if the dial-up networking mode of the user terminal is determined to be an ADSL mode, the DSP decodes the virtual path identifier/virtual channel identifier field information in the path information;

mapping the virtual path identifier/virtual channel identifier field information into a first logic id according to a preset first mapping relation, and sending the first logic id to an NPU network chip of the uplink equipment;

and the NPU network chip reversely acquires the field information of the virtual path identifier/virtual channel identifier according to the preset first mapping relation after receiving the first logic id, and determines that a forwarding mechanism of the data stream forwarded to the user terminal is in an ADSL mode, thereby completing the processing supporting the ADSL mode in the PTM transmission mode.

Optionally, the method further comprises:

if the dial-up networking mode of the user terminal is determined to be the VDSL mode, the DSP data signal processor decodes the physical line port ID in the path information;

mapping the physical line port ID into a second logic id according to a preset second mapping relation, and sending the second logic id to the NPU network chip;

and the NPU network chip reversely acquires the physical line port ID according to the preset second mapping relation after receiving the second logic id, and determines that a forwarding mechanism of the data stream forwarded to the user terminal is in a VDSL mode, so that the support of VDSL mode processing in the PTM transmission mode is completed.

Optionally, before the DSP digital signal processor of the uplink device obtains the internet access request sent by the user terminal, the method includes:

the method comprises the steps that transmission is established between a user terminal and an internet uplink device based on a preset protocol;

the preset protocol is a protocol for transmitting a subscriber line id defined by an International telecommunication Union telecommunication Standard (ITU) branch office; the transmission format of the preset protocol is a packet header and an Ethernet message frame format.

Optionally, the preset position of the packet header is used for storing a subscriber line id, and the subscriber line id is stored in a binary format.

Optionally, the ethernet packet frame format includes sequentially arranged: a destination address field, a source address field, a type field, a data field, and a CRC check field.

Optionally, before the DSP digital signal processor of the uplink device for surfing acquires the internet surfing request sent by the user terminal, the method further includes:

pre-configuring a one-to-one mapping relation between virtual path identifier/virtual channel identifier field information and a logic id, and taking the mapping relation as a first mapping relation;

pre-configuring a one-to-one mapping relation between the physical line portID and the logic id, and taking the mapping relation as a second mapping relation;

and storing the first mapping relation and the second mapping relation in the uplink equipment.

Optionally, after receiving the first logical id, the NPU network chip reversely obtains the field information of the virtual path identifier/virtual channel identifier according to the preset first mapping relationship, and determines that a forwarding mechanism of a data stream forwarded to a user terminal is in an ADSL mode, so that completing processing supporting the ADSL mode in the PTM transmission mode specifically includes:

acquiring a preset first mapping relation and receiving the first logic id;

according to the one-to-one mapping relation between the virtual path identifier/virtual channel identifier field information and the logic id in the first mapping relation and the first logic id, the NPU network chip reversely obtains the virtual path identifier/virtual channel identifier field information corresponding to the first logic id;

and determining that the forwarding mechanism of the data stream is in an ADSL mode based on the virtual path identifier/virtual channel identifier field information, thereby completing the processing in the ADSL mode supported under the PTM transmission mode.

Optionally, after receiving the second logical id, the NPU network chip reversely obtains the physical line port id according to the preset second mapping relationship, and determines that a forwarding mechanism of a data stream forwarded to the user terminal is in the VDSL mode, so that completing the processing supporting the VDSL mode in the PTM transmission mode specifically includes:

acquiring a preset second mapping relation and receiving the second logic id;

according to the one-to-one mapping relation between the physical line port ID and the logic id in the second mapping relation and the second logic id, the NPU network chip reversely obtains the physical line port ID corresponding to the second logic id;

and determining that the forwarding mechanism of the data stream is in a VDSL mode based on the physical line portID, thereby completing the processing supporting the VDSL mode in the PTM transmission mode.

Based on the method, the invention also provides an online uplink device, which comprises a processor and a memory connected with the processor, wherein the memory stores a processing program of PTM compatible ADSL and VDSL, and the processor is used for realizing the steps in the processing method of PTM compatible ADSL and VDSL when executing.

Based on the foregoing method, the present invention also provides a computer readable storage medium storing one or more programs, which are executable by one or more processors to implement the steps in the PTM-compatible ADSL and VDSL processing method described above.

Has the advantages that:

compared with the prior art, the invention provides a processing method, equipment and a medium for the compatibility of PTM with ADSL and VDSL, wherein the method comprises the steps that a DSP digital signal processor of an internet uplink device acquires an internet request sent by a user terminal and determines a dial-up internet access mode of the user terminal; the network access request carries path information; if the dial-up networking mode of the user terminal is determined to be an ADSL mode, the DSP decodes the virtual path identifier/virtual channel identifier field information in the path information; mapping the virtual path identifier/virtual channel identifier field information into a first logic id according to a preset first mapping relation, and sending the first logic id to an NPU network chip of the uplink equipment; and the NPU network chip reversely acquires the field information of the virtual path identifier/virtual channel identifier according to the preset first mapping relation after receiving the first logic id, and determines that a forwarding mechanism of the data stream forwarded to the user terminal is in an ADSL mode, thereby completing the processing supporting the ADSL mode in the PTM transmission mode. The invention can realize that the DSP simultaneously supports ADSL and VDSL modes in the PTM transmission mode without switching the transmission mode of the DSP, thereby improving the internet efficiency and facilitating users.

Drawings

Fig. 1 is a network topology structure diagram of ADSL/VDSL terminal in the embodiment of the present invention.

Fig. 2 is a schematic diagram of a packet header structure in the g.int protocol according to an embodiment of the present invention.

Fig. 3 is a flowchart illustrating a PTM-compatible ADSL and VDSL processing method according to an embodiment of the present invention.

Fig. 4 is an internal structure diagram of the internet surfing uplink device in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In order to better understand the technical scheme of the invention, the related terms of the invention are explained as follows:

PTM (Packet Transmission Mode) transport Mode is a transport Mode defined in VDSL2 technology, and is transported over VDSL2 lines using ethernet frame structures for carrying IP traffic, IP being a non-connection oriented technology.

ATM (Asynchronous Transfer Mode) is a switching technology based on circuit switching and packet switching, and is also a data transmission technology, which is one of core technologies for implementing services of B-ISDN. Generally, ATM is a cell-based packet switching and multiplexing technology, which is a common connection-oriented transmission mode designed for a variety of services, which is applicable to local area networks and wide area networks, has a high data rate, and supports many types of communications such as voice, data, fax, real-time video, CD-quality audio, and images.

ADSL (Asymmetric Digital Subscriber Line) is one of the most popular Digital Subscriber Line (xDSL) services.

VDSL (Very-high-bit-rate Digital Subscriber loop) is a fast version of ADSL and is characterized by a maximum download rate of 55Mbps and an upload rate of 19.2Mbps, or even higher, over short distances.

A dsp (digital signal processor) is a microprocessor that converts analog signals into digital signals.

An npu (networking processor) network chip is a microprocessor that provides logic for sending and receiving data over a communications network.

The G.INT protocol is a protocol defined by ITU-T (International telecommunication Union telecommunication standards office) for transmitting subscriber line id, the protocol document is ITU-T G.999.1, G.992.1 specifies ADSL equipment with a splitter, high-speed data and analog signals can be transmitted on the same pair of metal twisted-pair wires by using the equipment, the adopted line code is DMT, the downlink rate is 6.144Mbps, the uplink rate is 640Kbps, and the main function of the equipment is to transmit the subscriber line id (the id is an identity and is used for identifying a user on the internet) to an NPU network chip through the G.INT protocol.

VPI (Virtual Path identifier) and VCI (Virtual channel identifier), an ATM switch may use only the Virtual Path Identifier (VPI) portion of the cell header, only the Virtual Path identifier (VCI) portion, or both, to decide how to forward the cell. The virtual path identifier and virtual channel identifier simply refer to a logical number that identifies the virtual channel of the communication.

Virtual channels, also known as virtual circuits, are one of the transmission ways of exchanging data over packet-switched computer networks. It is a connection-oriented or circuit-switched data transmission method, in which a connection is created between two End systems (End systems) to exchange data. Before using a virtual circuit, a connection must first be created between two nodes or software applications. After the connection is created, the exchange of data streams between the two nodes can take place.

Since the conventional communication network (i.e. telephone switching network) is composed of three major parts, namely transmission, switching and terminal, the user terminal accesses the internet through the communication connection with the internet access uplink device at the switch end of the nearest user terminal, no matter through the ADSL terminal or VDSL terminal. However, in the prior art, one transmission mode can only support one internet access mode, for example, VDSL operation is supported in PTM transmission mode, ADSL operation is supported in ATM transmission mode, and thus, it cannot simultaneously support VDSL and ADSL in the same PTM transmission mode.

In order to solve the technical problem, the invention distinguishes VDSL work or ADSL work based on the path information of different parameters transmitted by the user terminal in different dial-up networking modes, so that the NPU network chip carries out corresponding data stream forwarding processing according to different dial-up networking modes, thereby simultaneously supporting ADSL and VDSL in the same PTM transmission mode without switching the transmission mode and improving the networking efficiency.

Research shows that 2 parameters, VPI/VCI, related to path information are needed to support ADSL internet access in the PTM transmission mode. And the path information supporting VDSL surfing in the PTM transmission mode does not comprise the 2 parameters of VPI/VCI. Therefore, the NPU network chip determines that the user terminal works in ADSL or VDSL through VPI/VCI reversely acquired by the logic id, and further realizes data stream forwarding processing in different dialing modes.

Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and fig. 3, fig. 1 illustrates a network topology structure diagram of an ADSL/VDSL terminal in an embodiment of the present invention, and fig. 3 illustrates a PTM-compatible ADSL and VDSL processing method in an embodiment of the present invention.

As shown in fig. 3, a PTM-compatible ADSL and VDSL processing method provided by the present invention includes:

s10, the DSP of the uplink equipment acquires the network request sent by the user terminal and determines the dial-up network access mode of the user terminal; and the Internet surfing request carries path information.

In the embodiment of the present invention, as shown in fig. 1, the uplink device includes a DSP digital signal processor and an NPU network chip. After the user terminal establishes communication connection with the uplink equipment for surfing the Internet, data transmission is carried out based on a preset protocol, so that the requirement of surfing the Internet is met. In specific implementation, the predetermined protocol in this embodiment is a g.int protocol, which is different from ethernet packet frame format transmission adopted in a conventional PTM transmission mode under ITU-T. The Ethernet message frame format comprises the following components in sequence: a destination address field, a source address field, a type field, a data field, and a CRC check field.

Furthermore, the transmission format of the g.int protocol is a packet header and an ethernet packet frame format, that is, the g.int protocol adds a packet header to the front end of the ethernet packet frame format, where a preset position of the packet header is used to store a subscriber line id, and the subscriber line id is stored in a binary format. In order to reduce the bandwidth occupation and increase the transmission speed, the g.int protocol in this embodiment pre-defines the header as 4 bytes, and as shown in fig. 2, the first 2 bytes, i.e. the first byte and the second byte, of the header are used for storing the subscriber line id.

In fig. 2, tci (terrain clear indicator) represents an absolute height indicator, LENGTH represents LENGTH, Sid represents a logical id for carrying a user, Sid0-Sid9 represents a logical id capable of carrying 10 binary bits. Therefore, the same DSP can support transmission of 1024 subscriber line ids at maximum.

Example 1: the logic number of the user terminal is 3, the binary representation of the logic number is 0000000011, then sid0 is set to 1, sid1 is set to 1, and the others are set to 0;

if the logic number of the user terminal is 4 and its binary representation is 0000000100, then sid2 is set to 1 and the other sids are set to 0.

It should be noted that, when the DSP receives the request for accessing the internet, the DSP can know the dial-up internet access mode adopted by the user terminal, that is, the DSP can determine that the user terminal is accessing the internet by ADSL dial-up or VDSL dial-up. However, the NPU network chip cannot directly determine the dial-up networking mode adopted by the user terminal, but needs to determine whether the transmitted path information includes vpi/vc field information through the logical id and the mapping relationship thereof, so as to determine whether the dial-up networking mode of the user terminal is the ADSL mode or the VDSL mode.

Just as the user terminal accesses the internet by ADSL, the configured vpi/vci must be consistent with the upstream device accessing the internet to be able to access the internet. The NPU network chip mainly functions to identify a logic id corresponding to a user in an ADSL internet flow, and the NPU network chip needs to configure different network configurations according to the logic id, such as filtering of a black and white list, flow control, and the like.

In order to facilitate the user to acquire the vpi/vci parameter in a reverse direction faster when the PTM mode supports ADSL internet access, before step S10, a one-to-one mapping relationship between the vpi/vci field information and the logic id (i.e., represented by sid) is preconfigured, and the mapping relationship is used as the first mapping relationship.

Example 2: (ADSL dial-up connection) receiving user operation instruction

port id (1) vpi (8)/vci (35) is mapped to sid (2);

port id (1) vpi (8)/vci (36) is mapped to sid (3);

......

port id (1) vpi (8)/vci (36) is mapped to sid (8).

Thus, when the DSP determines that the dial-up networking mode of the user terminal is the ADSL mode, the path information sent by the ADSL terminal is decoded into vpi/vci to be mapped into a first logic id, then the NPU network chip reversely obtains the vpi/vci based on the first logic id and the first mapping relation, and the ADSL mode is determined to work.

Further, it should be noted that the path information transmitted by the user terminal belonging to ADSL dial-up networking all has vpi/vci field information, and therefore, it is impossible to distinguish whether the user terminals are the same ADSL user terminal only according to vpi/vci, and therefore, in this embodiment, a parameter, i.e., a physical line port id, is also introduced, and the physical line port ids corresponding to the user terminals belonging to ADSL mode are different, and therefore, the path information transmitted by the user terminals belonging to ADSL includes three parameters, i.e., physical line port id, vpi, and vci.

Certainly, since there is no vpi/vci concept in the VDSL mode, the PTM mode surfs the internet with VDSL, and only the physical line portID parameter is in the transmitted path information. Therefore, a one-to-one mapping relationship between the physical line portID and the logical id is configured in advance, and the mapping relationship is used as a second mapping relationship, so that the NPU network chip determines that the user terminal operates in the VDSL mode based on the second logical id and the second mapping relationship.

Example 3: (VDSL dial-up networking) receiving operation instructions of users

port id (1) is mapped to sid (1);

......

port id (2) maps to sid (10).

That is, several ADSL user terminals or VDSL user terminals are distinguished by three parameters of physical line portID, vpi, and vci.

Further, the first mapping relation and the second mapping relation are stored in the internet uplink device.

The logical id (i.e. sid) mapped by the ADSL or VDSL network is the subscriber line id (i.e. user terminal) that uniquely identifies the current dial-up network.

S20, if the dial-up networking mode of the user terminal is determined to be ADSL mode, the DSP digital signal processor decodes the virtual path identifier/virtual channel identifier field information in the path information.

In the embodiment of the invention, the DSP digital signal processor performs decoding operation after receiving the path information transmitted by the ADSL user terminal, and decodes the path information into vpi/vci.

Meanwhile, the DSP receives the path information transmitted by the VDSL user terminal and then directly acquires the physical line port ID in the path information.

S30, mapping the virtual path identifier/virtual channel identifier field information into a first logic id according to a preset first mapping relation, and sending the first logic id to an NPU network chip of the uplink device.

In the embodiment of the invention, the MPU network chip determines that the data stream forwarding mechanism is an ADSL mode or a VDSL mode based on the logic id and the corresponding mapping relation, so the NPU network chip needs to acquire the logic id sent by the DSP digital signal processor.

In specific implementation, after the DSP determines that the dial-up networking mode of the user terminal is the ADSL mode, the DSP decodes the path information to obtain vpi/vci, and then the vpi/vci is mapped to a first logic id according to a first mapping relation and is sent to the NPU network chip, so that the NPU network chip reversely determines the decoded vpi/vci based on the first mapping relation, and the dial-up networking mode or the forwarding mechanism is determined to be the ADSL mode.

Certainly, after the DSP digital signal processor determines that the dial-up networking mode of the user terminal is the VDSL mode, it maps the physical line port id into the second logical id according to the second mapping relationship, and sends the second logical id to the NPU network chip, so that the NPU network chip reversely determines that the dial-up networking mode or forwarding mechanism of the user terminal corresponding to the physical line port id is the VDSL mode based on the second mapping relationship.

For example, as shown in fig. 1, an ADSL 1 user terminal accesses the internet, and carries path information vpi-8 and vci-35 (physical line portlet id is not shown), the DSP digital signal processor carries 2(11) in the first logical id corresponding to the g.int protocol, wherein 1(10) carried by the second logical id is reserved for the VDSL user terminal.

The ADSL 2 user terminal logs on the internet, and carries path information, also vpi ═ 8 and vci ═ 35 (physical line port id is not shown). Although vpi and vci corresponding to path information carried by the ADSL 2 user terminal and ADSL 1 user terminal are the same, physical line port IDs carried by the terminals are different, that is, the terminals are distinguished by the physical line port IDs when vpi/vci are the same.

When the VDSL3 user terminal accesses the internet, it sends the path information carried in the internet access request to the DSP digital signal processor, which only includes the physical line port id, but does not include vpi and vci, so that the DSP digital signal processor directly sends the second logical id mapped by the physical line port id in the path information to the NPU network chip, so that the NPU network chip determines that the dial-up internet access mode is VDSL.

And S40, the NPU network chip reversely acquires the physical wire port ID according to the preset second mapping relation after receiving the second logic id, and determines that a forwarding mechanism for forwarding data streams to the user terminal is in a VDSL mode, thereby completing the processing supporting the VDSL mode in the PTM transmission mode.

In the embodiment of the invention, the positive cause VDSL mode does not have a vpi/vci concept, and the NPU network chip can reversely acquire vpi/vci through the logic id of the G.INT protocol based on the corresponding mapping relation to distinguish whether the user terminal works in VDSL or ADSL, so as to determine the forwarding mechanism of the corresponding data stream. In specific implementation, acquiring a preset first mapping relation and receiving the first logic id; according to the one-to-one mapping relation between the virtual path identifier/virtual channel identifier field information and the logic id in the first mapping relation and the first logic id, the NPU network chip reversely obtains the virtual path identifier/virtual channel identifier field information corresponding to the first logic id; and determining that the forwarding mechanism of the data stream is in an ADSL mode based on the virtual path identifier/virtual channel identifier field information, thereby completing the processing in the ADSL mode supported under the PTM transmission mode.

Obtaining a preset second mapping relation and receiving the second logic id; according to the one-to-one mapping relation between the physical line port ID and the logic id in the second mapping relation and the second logic id, the NPU network chip reversely obtains the physical line port ID corresponding to the second logic id; and determining that the forwarding mechanism of the data stream is in a VDSL mode based on the physical line portID, thereby completing the processing supporting the VDSL mode in the PTM transmission mode.

Therefore, ADSL and VDSL can be simultaneously supported in the same PTM transmission mode without switching the transmission mode, and the internet access efficiency is improved.

It should be noted that an ADSL subscriber terminal typically supports a maximum of 8 vpi/vci channels and a VDSL, and therefore each subscriber terminal is given a range of 9 logical id values.

The "first" and "second" of the first logical id and the second logical id are for convenience of distinction and are not limited.

Therefore, based on steps S10-S40, the present invention distinguishes whether the dial-up networking mode is ADSL or VDSL by whether vpi/vci is acquired reversely by the logic id, so that the NPU network chip forwards data streams according to different dial-up networking modes determined by the logic id, and then the DSP digital signal processor simultaneously supports ADSL and VDSL modes without switching the DSP transmission mode in the same PTM transmission mode, thereby improving the networking efficiency and facilitating the user.

In an embodiment, based on the foregoing method, the present invention provides an uplink device, where the device may be a terminal, and an internal structure of the device is shown in fig. 4. The internet uplink device comprises a processor, a memory, a network interface and an input device which are connected through a device bus, and also comprises a display screen. Wherein, the processor of the uplink equipment is used for providing calculation and control capability. The memory of the internet uplink device comprises a nonvolatile storage medium and an internal memory. The nonvolatile storage medium stores an operating device and a computer program. The internal memory provides an environment for the operation device and the execution of the computer program in the nonvolatile storage medium. The network interface of the uplink equipment is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to implement a method of generating a natural language model. The display screen of the internet uplink device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the internet uplink device can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the internet uplink device, an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will understand that fig. 4 is a block diagram of only a part of the structure related to the present application, and does not constitute a limitation on the upstream device to which the present application is applied, and a specific upstream device may include more or less components than those shown in the figure, or combine some components, or have a different arrangement of components.

In summary, the present invention provides a processing method, device and medium for PTM compatible ADSL and VDSL, the method includes that a DSP digital signal processor of an internet uplink device obtains an internet request sent by a user terminal and determines a dial-up internet access mode of the user terminal; the network access request carries path information; if the dial-up networking mode of the user terminal is determined to be an ADSL mode, the DSP decodes the virtual path identifier/virtual channel identifier field information in the path information; mapping the virtual path identifier/virtual channel identifier field information into a first logic id according to a preset first mapping relation, and sending the first logic id to an NPU network chip of the uplink equipment; and the NPU network chip reversely acquires the field information of the virtual path identifier/virtual channel identifier according to the preset first mapping relation after receiving the first logic id, and determines that a forwarding mechanism of the data stream forwarded to the user terminal is in an ADSL mode, thereby completing the processing supporting the ADSL mode in the PTM transmission mode. The invention can realize that the DSP simultaneously supports ADSL and VDSL modes in the PTM transmission mode without switching the transmission mode of the DSP, thereby improving the internet efficiency and facilitating users.

Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims

1. A PTM compatible ADSL and VDSL processing method, comprising the steps of:

and the NPU network chip reversely acquires the field information of the virtual path identifier/virtual channel identifier according to the preset first mapping relation after receiving the first logic id, and determines that a forwarding mechanism for forwarding a data stream to the user terminal is in an ADSL mode, thereby completing the processing supporting the ADSL mode in the PTM transmission mode.

2. The PTM-compatible ADSL and VDSL processing method in accordance with claim 1, wherein the method further comprises:

if the dial-up networking mode of the user terminal is determined to be a VDSL mode, the DSP data signal processor maps the physical line port ID in the path information into a second logic id and sends the second logic id to the NPU network chip;

and the NPU network chip reversely acquires the physical line port ID according to the preset second mapping relation after receiving the second logic id, and determines that a forwarding mechanism for forwarding the data stream to the user terminal is in a VDSL mode, so that the processing supporting the VDSL mode in the PTM transmission mode is completed.

3. The PTM-compatible ADSL and VDSL processing method according to claim 1, wherein before the DSP digital signal processor of the internet upstream device obtains the internet request sent by the user terminal, it comprises:

4. The PTM-compatible ADSL and VDSL processing method in accordance with claim 3, wherein the predetermined location of the packet header is used to store a subscriber line id, and the subscriber line id is stored in a binary format.

5. The PTM-compatible ADSL and VDSL processing method according to claim 3, wherein the ethernet packet frame format comprises, in order: a destination address field, a source address field, a type field, a data field, and a CRC check field.

6. The PTM-compatible ADSL and VDSL processing method according to claim 1, wherein before the DSP digital signal processor of the internet-surfing upstream device obtains the internet-surfing request sent by the user terminal, the method further comprises:

7. The method of claim 5, wherein the NPU network chip receives the first logical id and then reversely obtains the field information of the virtual path identifier/virtual channel identifier according to the preset first mapping relationship, and determines that a forwarding mechanism for forwarding a data stream to the user terminal is in an ADSL mode, so as to complete processing in the ADSL mode supported in the PTM transmission mode specifically comprises:

acquiring a preset first mapping relation and receiving the first logic id;

8. The PTM-compatible ADSL and VDSL processing method of claim 2, wherein the NPU network chip, after receiving the second logical id, reversely obtains the physical line port id according to the preset second mapping relationship, and determines that a forwarding mechanism for forwarding a data stream to a user terminal is in the VDSL mode, thereby completing the processing supporting the VDSL mode in the PTM transmission mode specifically comprising:

acquiring a preset second mapping relation and receiving the second logic id;

9. An upstream device, comprising a processor and a memory connected to the processor, wherein the memory stores a PTM-compatible ADSL and VDSL processing program, and the processor is configured to implement the steps of the PTM-compatible ADSL and VDSL processing method according to any one of claims 1 to 8 when executed.

10. A computer readable storage medium, characterized in that the computer readable storage medium stores one or more programs which are executable by one or more processors to implement the steps in the PTM-compatible ADSL and VDSL processing method of any one of claims 1 to 8.