CN111245658A - Network bandwidth dynamic adjustment method based on MOST150 - Google Patents
Network bandwidth dynamic adjustment method based on MOST150 Download PDFInfo
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- CN111245658A CN111245658A CN202010030889.3A CN202010030889A CN111245658A CN 111245658 A CN111245658 A CN 111245658A CN 202010030889 A CN202010030889 A CN 202010030889A CN 111245658 A CN111245658 A CN 111245658A
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
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Abstract
The invention belongs to the technical field of MOST networks, and particularly relates to a network bandwidth dynamic adjustment method based on MOST150, which comprises the steps of S1, presetting a plurality of configuration files, wherein each configuration file is provided with three channel bandwidth information with different sizes; s2, any terminal in the MOST ring network sends a channel bandwidth switching instruction to the host, and the instruction comprises a configuration file; s3, the host transmits the bandwidth values required to be configured by the three channels to each terminal for adjustment in a traversing manner according to the information of the configuration file; s4, the terminal feeds back the result of the bandwidth adjustment to the host, and if the adjustment is successful, the output configuration is completed; if the adjustment fails, an error message is displayed, and step S2 is executed again as needed. Compared with the prior art, the method and the device can flexibly adjust the configuration of the bandwidth of each channel in the terminal, reduce the time for updating the large file by the terminal and improve the updating efficiency.
Description
Technical Field
The invention belongs to the technical field of MOST networks, and particularly relates to a network bandwidth dynamic adjustment method based on MOST 150.
Background
MOST (Media Oriented Systems Transport) networks, as a vehicle multimedia network transmission technology, are responsible for data transmission of vehicle infotainment and telematics devices, and mainly transmit entertainment data information in a ring topology.
According to the size division of the total bandwidth value of the MOST network, the MOST network is developed to the third generation, namely MOST150, the maximum total bandwidth of the MOST150 looped network supports 150Mbps, and 150Mbps bit digital signals can be transmitted in a closed looped network every second. In 150Mbps bandwidth of MOST150 network, four logical channels of Control channel, MEP (MOST Ethernet packets channel), Synchronous Streaming Data (Isochronous Streaming Data channel) and Isochronous Streaming Data (Isochronous Streaming Data channel) are commonly used, the logic channels for realizing the function of MOST150 network Vod (Video on Demand system) are mainly Control channel, MEP channel and Isochronous Streaming Data channel, the Control channel establishes and maintains the MOST150 as a closed ring network, the MEP channel is used for the Ethernet transmission of Vod on-demand protocol (previous, next and pause) Control messages between a host and a terminal, the Isothronous Streaming Data channel is used for sending host media files (movies, music and MTV) to the Isothronous Streaming Data channel in a TS (transport stream) format, the terminal receives multimedia files in the TS format through the Isothronous Streaming Data, the TS format files are decoded, and final videos and audios are provided for users.
At present, in the process of implementing logical channel bandwidth allocation of a MOST150 network Vod function, a host is mainly used to start bandwidth allocation adjustment in a MOST ring network, and three channels, namely, Control, MEP and Isochronous Streaming Data, are successfully configured in a configuration file once, and then the bandwidth of the three channels is not changed, so that when a terminal in each ring network needs to update a large file (a system software upgrade packet or a map Data packet), if the bandwidth of an MEP channel is small, a large amount of time is consumed (the consumed time is equal to the size of the file divided by the bandwidth of the MEP channel, and the MEP bandwidth is 150Mbps-Control channel bandwidth-Isochronous Streaming Data channel bandwidth).
Therefore, the present invention provides a method for dynamically adjusting bandwidth in view of the above situation, and when a terminal updates a large file, the bandwidth of each channel can be adjusted, so as to reduce the time consumed by updating the large file and improve the updating efficiency.
Disclosure of Invention
The invention aims to: aiming at the defects of the prior art, the method for dynamically adjusting the network bandwidth based on the MOST150 can flexibly adjust the configuration of each channel bandwidth in the terminal, reduce the time for updating a large file by the terminal and improve the updating efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a network bandwidth dynamic adjustment method based on MOST150 includes the following steps:
s1, presetting a plurality of configuration files, wherein each configuration file is provided with Control channel bandwidth c, MEP channel bandwidth m and Isochronous Streaming Data channel bandwidth i information with different sizes;
s2, any terminal in the MOST ring network sends a channel bandwidth switching instruction to the host, wherein the instruction comprises one of the configuration files;
s3, the host transmits the bandwidth values needed to be configured of the three channels to each terminal in the MOST ring network in a traversing manner according to the information of the configuration file for adjustment;
s4, the terminal feeds back the result state of the bandwidth adjustment to the host, if the adjustment is successful, the output configuration is completed; if the adjustment fails, an error message is displayed, and step S2 is executed again as needed.
As an improvement of the method for dynamically adjusting a network bandwidth based on the MOST150 in the present invention, the step S2 specifically includes the following steps:
s21, the terminal firstly sends a channel bandwidth switching instruction to an INIC chip of the terminal;
and S22, the INIC chip of the terminal transmits the instruction to the INIC chip of the host through the MOST ring network.
As an improvement of the method for dynamically adjusting a network bandwidth based on the MOST150 in the present invention, the step S3 specifically includes the following steps:
s31, after the host receives the instruction of switching channel bandwidth, the CPU of the host acquires the information of Control channel bandwidth c, MEP channel bandwidth m and Isochronous Streaming Data channel bandwidth i in the configuration file;
s32, the host sends the bandwidth values of the three channels to be adjusted to the INIC chip of the host, and the INIC chip of the host is transmitted to the INIC chip of each terminal through the MOST ring network in a traversing manner;
and S33, each terminal adjusts the bandwidth of each channel according to the value.
As an improvement of the method for dynamically adjusting network bandwidth based on MOST150 in the present invention, in step 1, the size of the Control channel bandwidth c, the MEP channel bandwidth m, and the Isochronous Streaming Data channel bandwidth i is a combination of any values, where c + m + i is 150.
As an improvement of the method for dynamically adjusting network bandwidth based on MOST150 in the present invention, the configuration file in step 1 further includes information of the bandwidth s of the Synchronous Streaming Data channel.
As an improvement of the method for dynamically adjusting network bandwidth based on MOST150 in the present invention, the size of Control channel bandwidth c, MEP channel bandwidth m, Isochronous Streaming Data channel bandwidth i and synchronous Streaming Data channel bandwidth s is a combination of arbitrary values, where c + m + i + s is 150.
As an improvement of the MOST 150-based network bandwidth dynamic adjustment method, the INIC chip is a microchip MOST network chip of an OS81110 or OS81118 model.
As an improvement to the method for dynamically adjusting network bandwidth based on MOST150 in the present invention, the host supports at least one MOST ring network.
As an improvement of the network bandwidth dynamic adjustment method based on the MOST150, in each MOST ring network, a host and a terminal are connected in series through optical fibers or coaxially to form a closed ring network structure.
As an improvement of the network bandwidth dynamic adjustment method based on the MOST150, the number of the terminals in each MOST ring network is 1-63.
The invention has the beneficial effects that: compared with the prior art, the method and the device have the advantages that the configuration files are preset, when any terminal needs to perform bandwidth adjustment, only the channel switching instruction needs to be sent to the host, if the configuration files cannot be adjusted successfully, other configuration files can be selected again to adjust according to needs, accordingly, dynamic adjustment of bandwidth of each channel can be achieved, bandwidth configuration of the terminal is flexible, when the terminal updates large files, the configuration files with large MEP channel bandwidth can be selected to redistribute bandwidth of each channel in the terminal, time required by the terminal to update the files is effectively shortened, and file updating efficiency is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of dynamic bandwidth allocation of a single ring MOST network according to the present invention;
fig. 2 is a schematic diagram of dynamic bandwidth allocation of a multi-ring MOST network according to the present invention.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present invention will be described in further detail below with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1, a method for dynamically adjusting network bandwidth based on MOST150 includes the following steps:
s1, presetting a plurality of configuration files, wherein each configuration file is provided with Control channel bandwidth c, MEP channel bandwidth m and Isochronous Streaming Data channel bandwidth i information with different sizes;
s2, any terminal in the MOST ring network sends a channel bandwidth switching instruction to the host, wherein the instruction comprises one of the configuration files;
s3, the host transmits the bandwidth values needed to be configured of the three channels to each terminal in the MOST ring network in a traversing manner according to the information of the configuration file for adjustment;
s4, the terminal feeds back the result state of the bandwidth adjustment to the host, if the adjustment is successful, the output configuration is completed; if the adjustment fails, an error message is displayed, and step S2 is executed again as needed.
Preferably, step S2 specifically includes the following steps:
s21, the terminal firstly sends a channel bandwidth switching instruction to an INIC chip of the terminal;
and S22, the INIC chip of the terminal transmits the instruction to the INIC chip of the host through the MOST ring network.
Preferably, step S3 specifically includes the following steps:
s31, after the host receives the instruction of switching channel bandwidth, the CPU of the host acquires the information of Control channel bandwidth c, MEP channel bandwidth m and Isochronous Streaming Data channel bandwidth i in the configuration file;
s32, the host sends the bandwidth values of the three channels to be adjusted to the INIC chip of the host, and the INIC chip of the host is transmitted to the INIC chip of each terminal through the MOST ring network in a traversing manner;
and S33, each terminal adjusts the bandwidth of each channel according to the value.
Preferably, in step 1, the size of the Control channel bandwidth c, the MEP channel bandwidth m, and the Isochronous StreamingData channel bandwidth i is an arbitrary combination of values, where c + m + i is 150.
Preferably, the INIC chip is a microchip most network chip of OS81110 or OS81118 model.
Preferably, the configuration file in step 1 further includes information of a Synchronous Streaming Data channel bandwidth s, where the size of the Control channel bandwidth c, the MEP channel bandwidth m, the Isochronous Streaming Data channel bandwidth i, and the Synchronous Streaming Data channel bandwidth s is a combination of any number, where c + m + i + s is 150.
As shown in fig. 2, it is revealed that when the host supports multiple MOST ring networks, dynamic bandwidth allocation is performed, and as with the single ring MOST ring network, any one terminal in the multi-ring network can actively start bandwidth adjustment, and repeatedly switch the configuration of each channel bandwidth for many times at any time, thereby greatly improving the flexibility of adjustment, reducing the time for updating the terminal file, and improving the efficiency of updating the file.
The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A network bandwidth dynamic adjustment method based on MOST150 is characterized by comprising the following steps:
s1, presetting a plurality of configuration files, wherein each configuration file is provided with Control channel bandwidth c, MEP channel bandwidth m and Isochronous Streaming Data channel bandwidth i information with different sizes;
s2, any terminal in the MOST ring network sends a channel bandwidth switching instruction to the host, wherein the instruction comprises one of the configuration files;
s3, the host transmits the bandwidth values needed to be configured of the three channels to each terminal in the MOST ring network in a traversing manner according to the information of the configuration file for adjustment;
s4, the terminal feeds back the result state of the bandwidth adjustment to the host, if the adjustment is successful, the output configuration is completed; if the adjustment fails, an error message is displayed, and step S2 is executed again as needed.
2. The method for dynamically adjusting network bandwidth based on MOST150 of claim 1, wherein the step S2 specifically includes the following steps:
s21, the terminal firstly sends a channel bandwidth switching instruction to an INIC chip of the terminal;
and S22, the INIC chip of the terminal transmits the instruction to the INIC chip of the host through the MOST ring network.
3. The method of dynamically adjusting network bandwidth based on MOST150 of claim 2, wherein the step S3 specifically includes the following steps:
s31, after the host receives the instruction of switching channel bandwidth, the CPU of the host acquires the information of Control channel bandwidth c, MEP channel bandwidth m and Isochronous Streaming Data channel bandwidth i in the configuration file;
s32, the host sends the bandwidth values of the three channels to be adjusted to the INIC chip of the host, and the INIC chip of the host is transmitted to the INIC chip of each terminal through the MOST ring network in a traversing manner;
and S33, each terminal adjusts the bandwidth of each channel according to the value.
4. The method of dynamic adjustment of network bandwidth based on MOST150 of claim 1, wherein: in step 1, the size of the Control channel bandwidth c, the MEP channel bandwidth m, and the Isochronous Streaming Data channel bandwidth i is a combination of arbitrary values, where c + m + i is 150.
5. The method of dynamic adjustment of network bandwidth based on MOST150 of claim 1, wherein: the configuration file in step 1 further includes information of the bandwidth s of the Synchronous Streaming Data channel.
6. The method of dynamic adjustment of network bandwidth based on MOST150 of claim 5, wherein: the size of the Control channel bandwidth c, the MEP channel bandwidth m, the Isochronous Streaming Data channel bandwidth i and the Synchronous Streaming Data channel bandwidth s is a combination of any number, wherein c + m + i + s is 150.
7. The method of dynamic MOST150 based network bandwidth adjustment according to claim 3, wherein: the INIC chip is a microchip most network chip of an OS81110 or OS81118 model.
8. The method of dynamic adjustment of network bandwidth based on MOST150 of claim 1, wherein: the host supports at least one MOST ring network.
9. The method of dynamic adjustment of network bandwidth based on MOST150 of claim 8, wherein: in each MOST ring network, a host and a terminal are connected in series through optical fibers or coaxially to form a closed ring network structure.
10. The method of dynamic adjustment of network bandwidth based on MOST150 of claim 8, wherein: in each MOST looped network, the number of the terminals is 1-63.
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