CN1984099B - Method and device for configuring adjacent cascade channel register - Google Patents

Abstract

The invention discloses a register configuration method for adjacent cascaded channels. The method is implemented based on a memory, and the memory stores the adjacent cascaded state and the serial number of the registers of each channel; the method includes the following steps: receiving the channel serial number of the channel ; According to the serial number of the channel, search for the corresponding adjacent cascading relationship in the memory; configure the register serial number of the channel according to the adjacent cascading relationship of the channel. Based on the above method, the present invention also provides an adjacent cascading channel register configuration device, and an adaptive SDH/SONET transmission method and system. Through the present invention, it is guaranteed from the hardware that when cascading services are processed, each of the cascading All channels use the same register, so the processing process is completed under the same control information, ensuring the integrity of adjacent cascading services; overcoming the inherent defects of software, improving the self-adaptive ability and response speed of the chip to adjacent cascading services .

Description

Adjacent cascade channel register configuration device and method

technical field

The present invention relates to SDH (Synchronous Digital Hierarchy, synchronous digital system)/SONET (Synchronous Optical Network, synchronous optical network), in particular to an adjacent cascade channel register configuration technology.

Background technique

SDH/SONET is the most widely used in the field of optical network. In SDH/SONET equipment, adjacent cascade transmission services are used, which are distributed in different high-order and low-order channels of STM (Synchronous Transport Module)-N/STS (Synchronous Transport Sequence)-N. Adjacent cascading refers to: when a container cannot meet the requirements of transmission services, adjacent virtual containers in the same STM-N are cascaded into an overall structure to transmit services.

When processing adjacent cascading services, the channels corresponding to these adjacent cascading services need to be treated as a whole, that is, the processing of one of the adjacent cascading channels by the CPU needs to be extended to all corresponding channels at the same time. Adjacent cascading channels, and the control information required for processing is stored in the corresponding register of the channel. At this time, it is necessary to configure the same register for all adjacent cascading channels according to the current output adjacent cascading information when configuring the registers. serial number.

In the prior art, the configuration of adjacent cascaded channels is obtained by interpreting pointers of overhead chips inside nodes, which has certain dynamic characteristics. The process of extending the control information applicable to the first channel of the adjacent cascade to the other channels of the adjacent cascade is realized through software, and the software needs to continuously monitor the current adjacent cascade status to update the register configuration of each channel.

Due to the inherent defects of the software itself, the use of software to realize the register configuration of adjacent cascade channels has poor real-time performance and a large amount of calculation; at the same time, the burden on the hardware is increased, and the hardware is required to ensure the correctness of reporting adjacent cascade information; new phases are obtained from pointer interpretation. It takes a long time for the adjacent cascading information to be configured according to the cascading information.

Contents of the invention

The main purpose of the present invention is to provide a device and method for configuring registers of adjacent cascaded channels realized by hardware, so as to solve the problems of poor real-time performance and large amount of calculation in the prior art.

For achieving above object, technical scheme of the present invention is realized like this:

A device for configuring adjacent cascaded channel registers, comprising:

The memory includes two storage areas, the first storage area stores the adjacent cascading relationship of each channel, and the second storage area stores the register number of each channel;

The configuration module receives the channel serial number of the channel, and configures the register serial number of the channel according to the adjacent cascading relationship corresponding to the channel serial number. When the adjacent cascading relationship of the channel is in the cascade state, the channel is Configure the register number of the first channel stored in the second storage area; when the adjacent cascading relationship of the channel is in a non-cascade state, configure the channel stored in the second storage area for the channel The first channel refers to the adjacent cascade service channel group to which this channel belongs, sorted according to the order of transmission, and the front channel.

Preferably, the first storage area stores the adjacent cascading relationship of each channel in units of bits.

A register configuration method for adjacent cascaded channels, the method is implemented based on a memory, and the memory stores the adjacent cascaded relationship and the register serial number of each channel; the method includes the following steps:

The channel number of the receiving channel;

Searching for the corresponding adjacent cascading relationship in the memory according to the sequence number of the channel;

Configure the register number of the channel according to the adjacent cascading relationship of the channel, when the adjacent cascading relationship of the channel is in the cascading state, configure the register number of the first channel of the cascade for the channel, when the channel When the adjacent cascading relationship of the channel is in the non-cascading state, configure the register number of this channel; the first cascading channel refers to the adjacent cascading service channel group to which this channel belongs, and is sorted according to the order of transmission. aisle.

Preferably, the adjacent cascading relationship in the memory is obtained through software configuration or through pointer interpretation.

An adaptive SDH/SONET transmission system comprising:

Including an adjacent cascaded channel register configuration device, the device includes:

The memory includes two storage areas, the first storage area stores the adjacent cascading relationship of each channel, and the second storage area stores the register number of each channel;

The configuration module receives the channel serial number of the channel, and configures the register serial number of the channel according to the adjacent cascading relationship corresponding to the channel serial number. When the adjacent cascading relationship of the channel is in the cascade state, the channel is Configure the register number of the first channel stored in the second storage area; when the adjacent cascading relationship of the channel is in a non-cascade state, configure the channel stored in the second storage area for the channel The first channel refers to the adjacent cascade service channel group to which this channel belongs, sorted according to the order of transmission, and the front channel.

Preferably, the transmission system also includes:

The sending device is used to send the data and the channel serial number of each channel;

The processing device is used to receive the data and the register serial number of each channel sent by the adjacent cascaded channel register configuration device, search for the corresponding register according to the register serial number, and process the received data under the control of the control information stored in the register. deal with;

The adjacent cascaded channel register configuration device is used to configure registers for each channel, and the configuration module of the adjacent cascaded channel register configuration device specifically includes:

The receiving unit receives the channel number and data of the channel;

A search unit, searching for a corresponding adjacent cascading relationship in the first storage area according to the channel number;

The configuration unit is configured to configure the register number of the channel according to the adjacent cascading relationship of the channel, and when the adjacent cascading relationship of the channel is in the cascading state, configure the channel to be stored in the second storage area The register number of the first channel of the channel; when the adjacent cascading relationship of the channel is in a non-cascading state, configuring the register number of the channel stored in the second storage area for the channel.

An adaptive SDH/SONET transmission method, the method is realized based on a memory, and the memory stores adjacent cascading relations and register serial numbers of each channel; the method comprises the following steps:

The channel number and data of the receiving channel;

Searching for the corresponding adjacent cascading relationship in the memory according to the channel number;

Configure the register number of the channel according to the adjacent cascading relationship of the channel, when the adjacent cascading relationship of the channel is in the cascading state, configure the register number of the first channel of the cascade for the channel, when the channel When the adjacent cascading relationship of the channel is in the non-cascading state, configure the register number of this channel; the first cascading channel refers to the adjacent cascading service channel group to which this channel belongs, and is sorted according to the order of transmission. aisle;

The corresponding register is searched according to the serial number of the register, and the received data of the channel is processed under the control of the control information stored in the register.

Through the above technical solution, it is guaranteed from the hardware that when processing the cascading business, each channel of the cascading uses the same register, so the processing process is completed under the same control information, ensuring the integrity of the adjacent cascading business; The inherent defects of the chip can improve the self-adaptive ability and response speed of the adjacent cascaded business.

Description of drawings

Fig. 1 is a structural diagram of the adjacent cascaded channel register configuration device of the present invention;

FIG. 2 is a flowchart of a method for configuring registers of adjacent cascaded channels in the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, make further specific description with the scheme of the present invention:

The core of the present invention is to provide a memory, the value stored in the memory unit corresponds to the adjacent cascading relationship of each channel, and the corresponding register number of the channel is configured according to the adjacent cascading relationship.

As shown in Figure 1, the present invention provides a device for configuring adjacent cascaded channel registers, including:

The memory includes two storage areas, the first storage area stores the adjacent cascading relationship of each channel, the value of each unit in the storage area corresponds to the adjacent cascading relationship of each channel, and a numerical value is used to represent the adjacent cascading relationship, Use another value to represent the non-cascading relationship. The better example method is to store the cascading configuration table, use 1 bit as an entry, use 1 to represent cascading, 0 to represent non-cascading, and of course 0 to represent cascading , 1 means non-cascading; the second storage area stores the register serial number of each channel, and each unit of the storage area stores the register serial number of the corresponding channel;

The configuration module receives the channel number, and configures the register number of this channel according to the adjacent cascading relationship corresponding to the channel number, including:

The receiving unit receives the channel number and data of a channel;

A search unit, searching for a corresponding adjacent cascading relationship in the first storage area in the memory according to the channel number;

The configuration unit configures the register number of this channel according to the adjacent cascading relationship of this channel, specifically: when the adjacent cascading relationship of this channel is in the cascading state, configure the channel corresponding to the first channel in the second area of the cascading When the adjacent cascading relationship of this channel is in the non-cascading state, configure the second area for this channel to correspond to the register number of this channel, where the first channel refers to the adjacent cascading service to which this channel belongs Channel group, sorted according to the order of transmission, the frontmost channel.

Based on the adjacent cascaded channel register configuration device, the present invention also provides an adaptive SDH/SONET transmission system, including:

The sending device is used to send the data and the channel serial number of each channel;

The adjacent cascaded channel register configuration device is used to receive the data and channel serial number of each channel, configure the register corresponding to the channel according to the channel serial number, and send the data and register serial number;

The processing device is used to receive the data of each channel and the serial number of the register, search for the corresponding register according to the serial number of the register, and process the received data under the control of the control information stored in the register.

As shown in FIG. 2, based on the above-mentioned adjacent cascaded channel register configuration device, the present invention also provides a method for configuring adjacent cascaded channel registers, including the following steps:

Step 1: Receive the channel number and data of a channel;

Step 2, according to the channel number, search the corresponding adjacent cascading relationship in the first storage area in the memory;

Step 3, judging whether the found adjacent cascade relationship is represented as a cascade, if yes, perform step 4, if not, perform step 5;

Step 4: Configure the register serial number of the first cascaded channel for this channel; by changing the register serial number, the channel register is set as the register corresponding to the first channel; thus ensuring that all channels of the same adjacent cascaded service are configured with the same register serial number, This ensures that processing is performed under the same control information.

Step 5: Configure the register number corresponding to this channel in the second area for this channel.

In this method, the cascading relationship in the cascading configuration table is obtained through software configuration or through pointer interpretation.

Taking the adjacent cascading of VC4 level in the STM-16 service as an example, the method for configuring the adjacent cascading channel register of the present invention is described in detail below:

There are 16 VC4s in STM-16, which are numbered 0#~15# according to the order of transmission; for the convenience of description, we define that if the i-th, i+1,...,k VC4s are For adjacent cascading, the i#VC4 is the first channel of the adjacent cascading, the register number is ctrl_i, and the k#VC4 is the last channel of the adjacent cascading. Correspondingly, the cascading configuration table has 16 entries, and each entry uses 1 to indicate cascading, and uses 0 to indicate non-cascading. The first table entry corresponds to 0#VC4, the i-th table entry corresponds to (i+1)#VC4 is 1, ... the 16th table entry corresponds to 15#VC4 as 0. If the channel number of (i+1)#VC4 is received, the register number is ctrl_i+1, indicating that the currently used register is ctrl_i+1, and the i-th entry of the cascade configuration table is searched to obtain the entry value of 1. , which means cascading, then ctrl_i+1=ctrl_i. If the information of the 15th #VC4 is received, the serial number of the register is ctrl_15, and the 16th entry in the cascading configuration table is 0, which means non-cascading, then ctrl_15=ctrl_15.

Based on the adjacent cascaded channel register configuration method, the present invention also provides an adaptive SDH/SONET transmission method, comprising the following steps:

Receive the channel number of a channel;

Searching for the corresponding adjacent cascading relationship in the memory according to the sequence number of the channel;

Configuring the register number of the channel according to the adjacent cascading relationship of the channel;

The channel searches for the corresponding register according to the serial number of the register, and performs related processing under the control of the control information stored in the register.

It can be seen that, through the above technical solution, it is guaranteed from the hardware that when processing cascaded services, each channel of cascading uses the same register, so the processing process is completed under the same control information, ensuring the integrity of adjacent cascaded services .

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (7)

1. A device for configuring adjacent cascaded channel registers, characterized in that it comprises: The memory includes two storage areas, the first storage area stores the adjacent cascading relationship of each channel, and the second storage area stores the register number of each channel; The configuration module receives the channel serial number of the channel, and configures the register serial number of the channel according to the adjacent cascading relationship corresponding to the channel serial number. When the adjacent cascading relationship of the channel is in the cascade state, the channel is Configure the register number of the first channel stored in the second storage area; when the adjacent cascading relationship of the channel is in a non-cascade state, configure the channel stored in the second storage area for the channel The first channel refers to the adjacent cascade service channel group to which this channel belongs, sorted according to the order of transmission, and the front channel. 2 . The device for configuring registers of adjacent cascaded channels according to claim 1 , wherein the first storage area stores the adjacent cascaded relationship of each channel in units of bits. 3 . 3. a kind of adjacent cascading channel register configuration method, it is characterized in that, described method realizes based on memory, and described memory stores the adjacent cascading relationship and the register serial number of each channel; Described method comprises the following steps: The channel number of the receiving channel; Searching for the corresponding adjacent cascading relationship in the memory according to the sequence number of the channel; Configure the register number of the channel according to the adjacent cascading relationship of the channel, when the adjacent cascading relationship of the channel is in the cascading state, configure the register number of the first channel of the cascade for the channel, when the channel When the adjacent cascading relationship of the channel is in the non-cascading state, configure the register number of this channel; the first cascading channel refers to the adjacent cascading service channel group to which this channel belongs, and is sorted according to the order of transmission. aisle. 4. The register configuration method for adjacent cascaded channels according to claim 3, wherein the adjacent cascaded relationship in the memory is obtained through software configuration or through pointer interpretation. 5. A self-adaptive synchronous digital system/synchronous optical network SDH/SONET transmission system, is characterized in that, comprises adjacent cascade channel register configuration device, and described device comprises: The memory includes two storage areas, the first storage area stores the adjacent cascading relationship of each channel, and the second storage area stores the register number of each channel; The configuration module receives the channel serial number of the channel, and configures the register serial number of the channel according to the adjacent cascading relationship corresponding to the channel serial number. When the adjacent cascading relationship of the channel is in the cascade state, the channel is Configure the register number of the first channel stored in the second storage area; when the adjacent cascading relationship of the channel is in a non-cascade state, configure the channel stored in the second storage area for the channel The first channel refers to the adjacent cascade service channel group to which this channel belongs, sorted according to the order of transmission, and the front channel. 6. adaptive SDH/SONET transmission system as claimed in claim 5, is characterized in that, comprises: The sending device is used to send the data and the channel serial number of each channel; The processing device is used to receive the data and the register serial number of each channel sent by the adjacent cascaded channel register configuration device, search for the corresponding register according to the register serial number, and process the received data under the control of the control information stored in the register. deal with; The adjacent cascaded channel register configuration device is used to configure registers for each channel, and the configuration module of the adjacent cascaded channel register configuration device specifically includes: The receiving unit receives the channel number and data of the channel; A search unit, searching for a corresponding adjacent cascading relationship in the first storage area according to the channel number; The configuration unit is configured to configure the register number of the channel according to the adjacent cascading relationship of the channel, and when the adjacent cascading relationship of the channel is in the cascading state, configure the channel to be stored in the second storage area The register number of the first channel of the channel; when the adjacent cascading relationship of the channel is in a non-cascading state, configuring the register number of the channel stored in the second storage area for the channel. 7. a kind of adaptive synchronous digital system/synchronous optical network SDH/SONET transmission method, it is characterized in that, described method realizes based on storer, and described storer stores the adjacent concatenation relationship and the register serial number of each channel; Described method comprises The following steps: The channel number and data of the receiving channel; Searching for the corresponding adjacent cascading relationship in the memory according to the channel number; Configure the register number of the channel according to the adjacent cascading relationship of the channel, when the adjacent cascading relationship of the channel is in the cascading state, configure the register number of the first channel of the cascade for the channel, when the channel When the adjacent cascading relationship of the channel is in the non-cascading state, configure the register number of this channel; the first cascading channel refers to the adjacent cascading service channel group to which this channel belongs, and is sorted according to the order of transmission. aisle; The corresponding register is searched according to the serial number of the register, and the received data of the channel is processed under the control of the control information stored in the register.