CN116545573B - Virtual concatenation group member automatic identification method and system based on FPGA - Google Patents
Virtual concatenation group member automatic identification method and system based on FPGA Download PDFInfo
- Publication number
- CN116545573B CN116545573B CN202310831123.9A CN202310831123A CN116545573B CN 116545573 B CN116545573 B CN 116545573B CN 202310831123 A CN202310831123 A CN 202310831123A CN 116545573 B CN116545573 B CN 116545573B
- Authority
- CN
- China
- Prior art keywords
- virtual
- group
- sequence number
- virtual container
- virtual concatenation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012360 testing method Methods 0.000 claims description 31
- 238000010854 vegetative compatibility group Methods 0.000 claims description 31
- 101000798109 Homo sapiens Melanotransferrin Proteins 0.000 claims description 24
- 102100032239 Melanotransferrin Human genes 0.000 claims description 24
- 238000012163 sequencing technique Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 239000000284 extract Substances 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 8
- 238000012546 transfer Methods 0.000 description 5
- 238000013507 mapping Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- DWSYCUKCNSVBRA-UHFFFAOYSA-N 4-(5-methylsulfonyltetrazol-1-yl)phenol Chemical compound CS(=O)(=O)C1=NN=NN1C1=CC=C(C=C1)O DWSYCUKCNSVBRA-UHFFFAOYSA-N 0.000 description 1
- 101710167643 Serine/threonine protein phosphatase PstP Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
- H04J3/1605—Fixed allocated frame structures
- H04J3/1611—Synchronous digital hierarchy [SDH] or SONET
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
- H04L45/245—Link aggregation, e.g. trunking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses an automatic virtual concatenation group member identification method based on FPGA, which extracts channel numbers and serial numbers of various virtual container channels; grouping all virtual container channels based on sequence numbers to obtain a plurality of sequence number groups, starting from a first sequence number group, and executing matching on each sequence number group according to a virtual concatenation group member matching principle until the sequence number group SQx-1 ends so as to obtain a correct virtual concatenation group; based on the obtained virtual container channel numbers and corresponding serial numbers in each correct virtual concatenation group, virtual container channel members in each virtual concatenation group in the received SDH signal are determined. Under the condition that the sink end can not acquire the configuration of the virtual concatenation group at the source end, the invention analyzes the channel member configuration of the virtual concatenation group in the SDH signal.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a virtual concatenation group member automatic identification method and system based on FPGA.
Background
MSTP carries ethernet data for transmission and maps the ethernet data into Synchronous Digital Hierarchy (SDH), commonly referred to as EOS (Ethernet over SDH). Currently, three link layer adaptation protocols can finish data framing encapsulation of ethernet services, namely HDLC/PPP (advanced data link control/point-to-point protocol), LAPS (link access protocol-SDH) and GFP (generic framing procedure) protocols.
For Synchronous Digital Hierarchy (SDH), during the transmission of ethernet data in an SDH network, an ethernet data stream is loaded in units of virtual containers VC, and the data stream is mapped in C-x containers (x= 12,3,4 is the class of containers) such as SDH, and the C-x containers are combined into a virtual container channel VC for transmission in SDH together with overhead. In the process of transferring data traffic through an SDH network, the rate of the data stream is not matched with the capacity of a C container in the SDH, and a plurality of VC channels need to be bound together to complete the transfer of the data traffic. The technique of combining multiple VC channels to transfer data is a virtual concatenation technique, which makes multiple VC groups connected in a logically large container to transfer data, and these logically combined members form a whole, called a virtual concatenation group VCG.
When the VC channel members of the virtual concatenation group are combined together as a whole to transfer data together, the VC channels are numbered according to the sequence of loading the data stream at the source end. Because the VC channels pass through the SDH network, through different nodes and possible cross processing, this order causes the members in the VCG group to be disturbed after reaching the destination, and the member sequence numbers thereof need to be recovered again at the destination for recovering the data stream. In the prior art, the source end normally transmits each channel member configuration of the virtual concatenation group to the sink end, and the sink end performs data analysis according to the configuration of the source end, but when the equipment is in butt joint with third party equipment, the channel member configuration of the source end is often not acquired, and the channel member configuration of the virtual concatenation group cannot be acquired at the sink end according to the configuration of the source end, so that the data analysis cannot be performed.
Disclosure of Invention
The invention aims to provide an automatic virtual concatenation group member identification method based on FPGA, which can enable a host to identify and acquire the channel member configuration of a virtual concatenation group in a correct SDH signal under the condition that the configuration of the virtual concatenation group of a source cannot be acquired.
In order to achieve the above purpose, the present invention provides a virtual concatenation group member automatic identification method based on FPGA, the method comprising the steps of:
s1, analyzing each virtual container channel in a received SDH signal, and extracting and storing channel numbers and serial numbers corresponding to each virtual container channel;
s2, dividing virtual container channel numbers with the same serial numbers into a group, grouping all the virtual container channels to obtain a plurality of serial number groups, sequencing the serial number groups according to the sequence from small to large in serial number, and recording the number of the virtual container channels in each serial number group, wherein the serial number groups are marked as SQ0, SQ1, … SQn … and SQx-1 in sequence from small to large, n is expressed as the serial number, starting from the first serial number group SQ0, and performing matching on each serial number group according to a virtual concatenation group member matching principle until the serial number group SQx-1 is ended, and the virtual concatenation group member matching principle comprises the steps S3-S5;
S3, matching is carried out on the current sequence number packet SQn, and the current difference value between the number of virtual container channels in the current sequence number packet SQn and the number of virtual container channels in the subsequent sequence number packet SQn+1 is calculated, wherein the current difference value represents the number of virtual concatenation groups from sequence number packet SQ0 to SQn;
s4, if the current difference value is greater than 0, selecting a virtual container channel number from each of sequence number groups SQ0 to SQn in turn, forming a temporary virtual concatenation group by each selected virtual container channel number, carrying out service test on the temporary virtual concatenation group and the received SDH signal, if no frame loss alarm exists, determining that the temporary virtual concatenation group is a correct virtual concatenation group, deleting all virtual container channel numbers in the correct virtual concatenation group from the corresponding sequence number groups, and if the frame loss alarm exists, determining that the temporary virtual concatenation group is wrong;
s5, if the current difference value is 0, matching the sequence number packet SQn+1, and repeating the steps S3-S4;
s6, based on the obtained virtual container channel numbers and corresponding serial numbers in each correct virtual concatenation group, determining the virtual container channel members in each virtual concatenation group in the received SDH signal.
Further, step S1 includes:
the segment overhead and channel overhead of each virtual container channel in the SDH signal are parsed to determine whether the virtual container channel is a higher order virtual container or a lower order virtual container.
Further, step S1 further includes:
when the virtual container channel is a high-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the high-order virtual container channel supporting the LCAS function into a high-order LCAS group, and dividing the high-order virtual container channel not supporting the LCAS function into a high-order non-LCAS group;
and dividing the high-order virtual container channels with similar values of the multi-frame numbers MFI1 and MFI2 into one group based on the multi-frame numbers MFI1 and MFI2 in each high-order virtual container channel, and executing steps S2-S6 based on each divided group.
Further, step S1 further includes:
when the virtual container channel is a low-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the low-order virtual container channel supporting the LCAS function into a low-order LCAS group, and dividing the low-order virtual container channel not supporting the LCAS function into a low-order non-LCAS group;
and dividing the low-order virtual container channels with similar values of the multi-frame numbers MFI1 and MFI2 into one group based on the indication of the multi-frame numbers MFI1 and MFI2 in each low-order virtual container channel, and executing steps S2-S6 based on the divided groups.
Further, step S4 includes: and after deleting all virtual container channel numbers in the correct virtual concatenation group from the corresponding sequence number groups, recalculating the number of the virtual container channels for each sequence number group.
Further, step S4 includes:
when the current sequence number packet SQn is matched, if the determined correct virtual concatenation group is smaller than the number of virtual concatenation groups VCG in sequence number packets SQ0 to SQn, the step of sequentially selecting one virtual container channel number from each packet in sequence number SQ0 to SQn and forming a temporary virtual concatenation group by all the selected virtual container channel numbers is executed, and if the determined correct virtual concatenation group is equal to the number of virtual concatenation groups VCG in sequence number packets SQ0 to SQn, the execution of the operation of matching the current sequence number packet SQn is stopped to start the execution of the matching of the next sequence number packet SQn+1.
Further, step S4 includes:
before the service test is carried out on the temporary virtual concatenation group and the received SDH signal, a GFP field in SDH payload information in the temporary virtual concatenation group is obtained, if the PTI field in the GFP field is a fixed value 000 and the UPI field is a fixed value 00000001, the GFP field information in the temporary virtual concatenation group is judged to be correct, the service test of the temporary virtual concatenation group and the received SDH signal is continuously carried out, otherwise, the temporary virtual concatenation group is determined to be incorrect.
Further, step S4 includes:
when the temporary virtual concatenation group and the received SDH signal are subjected to service test, based on the service configuration number M supported by hardware, M different temporary virtual concatenation groups are supported at one time to respectively and simultaneously carry out service test with the received SDH signal, and whether each temporary virtual concatenation group has a frame loss alarm or not is judged.
In order to achieve the above purpose, the present invention provides an automatic virtual concatenation group member identification system based on FPGA, the system comprising:
the analysis module is used for analyzing each virtual container channel in the received SDH signal, and extracting and storing channel numbers and serial numbers corresponding to each virtual container channel;
a grouping module, configured to divide virtual container channel numbers with the same sequence number into a group, group all virtual container channels to obtain a plurality of sequence number groups, order the sequence number groups according to the sequence number from small to large, and record the number of the virtual container channels in each sequence number group, where the sequence number groups are sequentially marked as SQ0, SQ1, … SQn …, SQx-1 from small to large, where n is denoted as a sequence number, and starting from the first sequence number group SQ0, perform matching on each sequence number group according to a virtual concatenation group member matching principle until the sequence number group SQx-1 ends;
The matching module is used for executing matching on the current sequence number packet SQn, calculating the current difference value between the number of virtual container channels in the current sequence number packet SQn and the number of virtual container channels in the subsequent sequence number packet SQn+1, wherein the current difference value represents the number of virtual concatenation groups from sequence number packet SQ0 to SQn, if the current difference value is greater than 0, each virtual container channel number is sequentially selected from each packet from sequence number packet SQ0 to SQn, each selected virtual container channel number forms a temporary virtual concatenation group, the temporary virtual concatenation group and the received SDH signal are subjected to service test, if no frame loss alarm exists, the temporary virtual concatenation group is determined to be the correct virtual concatenation group, and if the frame loss alarm exists, all virtual container channel numbers in the correct virtual concatenation group are deleted from the corresponding sequence number packets, the temporary virtual concatenation group is determined to be the error; if the current difference value is 0, matching the sequence number packet SQn+1 is executed, and a matching module is repeatedly executed;
and the acquisition module is used for determining the virtual container channel members in each virtual continuous group in the received SDH signal based on the acquired virtual container channel numbers and corresponding serial numbers in each correct virtual concatenated group.
Further, the matching module is specifically configured to, when the current sequence number packet SQn is matched, if the determined correct virtual concatenation group is smaller than the number of virtual concatenation groups VCGs in sequence number packets SQ0 to SQn, execute the step of sequentially selecting one virtual container channel number from each packet in sequence from SQ0 to SQn, and form a temporary virtual concatenation group from all the selected virtual container channel numbers, and if the determined correct virtual concatenation group is equal to the number of virtual concatenation groups VCG in sequence number packets SQ0 to SQn, stop executing the operation of matching the current sequence number packet SQn to start executing the matching of the next sequence number packet sqn+1.
The invention can automatically identify and acquire the channel member configuration of the virtual concatenation group in the correct SDH signal under the condition that the host cannot acquire the configuration of the virtual concatenation group of the source, thereby correctly analyzing the Ethernet signal.
Drawings
Fig. 1 is a flow chart of a method for automatically identifying virtual concatenation group members based on FPGA implementation in accordance with one embodiment of the present invention.
Fig. 2 is another flow diagram of a virtual concatenation group member automatic identification method implemented based on an FPGA according to one embodiment of the present invention.
Fig. 3 is a schematic flow diagram of another method for automatically identifying virtual concatenation group members based on FPGA implementation in accordance with one embodiment of the present invention.
Fig. 4 is a system block diagram of a virtual concatenation group member automatic identification method system implemented based on an FPGA in accordance with one embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the specific embodiments shown in the drawings, but these embodiments are not limited to the present invention, and structural, method, or functional modifications made by those skilled in the art based on these embodiments are included in the scope of the present invention.
In an embodiment of the present invention as shown in fig. 1, the present invention provides a virtual concatenation group member automatic identification method implemented based on FPGA, the method comprising the steps of:
s1, analyzing each virtual container channel in a received SDH signal, and extracting and storing channel numbers and serial numbers corresponding to each virtual container channel;
s2, dividing virtual container channel numbers with the same serial numbers into a group, grouping all the virtual container channels to obtain a plurality of serial number groups, sequencing the serial number groups according to the sequence from small to large in serial number, and recording the number of the virtual container channels in each serial number group, wherein the serial number groups are marked as SQ0, SQ1, … SQn … and SQx-1 in sequence from small to large, n is expressed as the serial number, starting from the first serial number group SQ0, and performing matching on each serial number group according to a virtual concatenation group member matching principle until the serial number group SQx-1 is ended, and the virtual concatenation group member matching principle comprises the steps S3-S5;
S3, matching is carried out on the current sequence number packet SQn, and the current difference value between the number of virtual container channels in the current sequence number packet SQn and the number of virtual container channels in the subsequent sequence number packet SQn+1 is calculated, wherein the current difference value represents the number of virtual concatenation groups VCG from the sequence number packet SQ0 to the SQn;
s4, if the current difference value is greater than 0, selecting a virtual container channel number from each of sequence number groups SQ0 to SQn in turn, forming a temporary virtual concatenation group by each selected virtual container channel number, carrying out service test on the temporary virtual concatenation group and the received SDH signal, if no frame loss alarm exists, determining that the temporary virtual concatenation group is a correct virtual concatenation group, deleting all virtual container channel numbers in the correct virtual concatenation group from the corresponding sequence number group, and if the frame loss alarm exists, determining that the temporary virtual concatenation group is wrong;
s5, if the current difference value is 0, matching the sequence number packet SQn+1, and repeating the steps S3-S4;
s6, based on the obtained virtual container channel numbers and corresponding serial numbers in each correct virtual concatenation group, determining the virtual container channel members in each virtual concatenation group in the received SDH signal.
Virtual concatenation is to form a virtual large-structure VC-4/3/12-Xv format for transmission by concatenating virtual container channels VC distributed in different STM-N data frames, and to separate continuous data bandwidths for transmission in independent VC-X, and to combine the virtual container channels VC together at the end of transmission to obtain continuous bandwidths. When virtual concatenation is transmitted, the containers which are mutually independent in the transmission process all have member serial numbers which are used for identifying the sequence of loading the data streams on the source end of the containers, the sequence is disturbed after the transmission, and the member serial numbers are restored on the destination end to restore the data streams.
As an implementation of the present invention, based on each configured STM rate, it is determined whether or not the received SDH signal has a frame Loss (LOF) alarm, and when the SDH signal is consistent with the selected configuration rate, there is no LOF alarm, and it is determined that the received SDH signal is valid and the SDH signal rate is the selected configuration rate.
As an implementation manner of the present invention, step S1 includes parsing the segment overhead and channel overhead of each virtual container channel in the SDH signal to determine whether the virtual container channel is a higher-order virtual container or a lower-order virtual container. After the signal rate is determined, the segment overhead and the channel overhead of each virtual container channel in the SDH signal are analyzed. According to the C2 bytes in the channel overhead in each virtual container channel VC, if c2=0x1b, it is denoted GFP mapping, and the virtual container channel VC is a high-order VC4; if c2=0x2, it indicates that the VC is a TUG structure, it is necessary to further determine the rate of each low-order virtual container channel VC of the TUG structure.
As an implementation manner of the present invention, as shown in fig. 2, step S1 further includes:
s11, when the virtual container channel is a high-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the high-order virtual container channel supporting the LCAS function into a high-order LCAS group, and dividing the high-order virtual container channel not supporting the LCAS function into a high-order non-LCAS group;
s12, dividing the high-order LCAS group and the high-order non-LCAS group into groups based on the multi-frame numbers MFI1 and MFI2 in each high-order virtual container channel, dividing the high-order virtual container channels with similar multi-frame numbers MFI1 and MFI2 into one group, and executing steps S2-S6 based on each divided group.
When the virtual container channel is a high-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the high-order virtual container channel supporting LCAS function into high-order LCAS groups, and dividing the high-order virtual container channel not supporting LCAS function into high-order non-LCAS groups. The H1 and H2 bytes of each high-order virtual container channel VC4 are analyzed, if the H1 and H2 bytes are 0x93ff/0x9bff/0x9fff/0x97ff, the high-order virtual container channel VC4 is indicated to be cascade, otherwise, the high-order virtual container channels VC4 are not cascade. Analyzing the H4 byte of each high-order virtual container channel VC4, and acquiring whether the multi-frame number MFI1 (range 0-15) and the multi-frame number MFI2 (range 0-255) in the H4 byte are in a normal range, if so, indicating that the high-order virtual container channel VC4 is valid, and if not, not processing. For the effective higher-order virtual container channel VC4, the higher-order virtual container channels VC4 supporting LCAS functions are divided into higher-order LCAS groups, and the higher-order virtual container channels VC4 not supporting LCAS functions are divided into higher-order non-LCAS groups according to LCAS (Link Capacity Adjustment Scheme, link capacity adjustment mechanism) information (e.g., CTRL bytes) in the H4 bytes. Subsequent processing is performed on each higher-order virtual container channel VC4 of the LCAS group and each higher-order virtual container channel VC4 of the non-LCAS group, respectively. By grouping the high-order virtual containers based on the LCAS bytes, the complexity of the algorithm is reduced, so that channel members in the virtual concatenation group can be identified more quickly, and the consumption of logic resources is reduced. MFI1 and MFI2 are located at H4 bytes, where MFI1 is located at BIT5-BIT8, with one MFI1 per frame, for a total of 4 BITs, ranging from 0-15.MFI2 is located in BIT1-BIT4, present in the first 2 frames of every 16 frames, for a total of 8 BITs, ranging from 0-255.
And dividing the high-order virtual container channels with similar values of the multi-frame numbers MFI1 and MFI2 into one group based on the multi-frame numbers MFI1 and MFI2 in each high-order virtual container channel, and executing steps S2-S6 based on each divided group. Each virtual container channel in the virtual concatenation group starts from the same source end, goes through the same distance, and performs signal analysis at the same time of the destination end, and the obtained multiframe numbers are not quite different in theory. Therefore, the method can further group based on the similar multi-frame numbers MFI1 and MFI2, reduces algorithm complexity and further improves the identification speed of virtual concatenation group members.
As an implementation manner of the present invention, as shown in fig. 3, step S1 further includes:
s13, when the virtual container channel is a low-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the low-order virtual container channel supporting the LCAS function into a low-order LCAS group, and dividing the low-order virtual container channel not supporting the LCAS function into a low-order non-LCAS group;
s14, dividing the low-order virtual container channels with similar values of the multi-frame numbers MFI1 and MFI2 into one group based on the multi-frame numbers MFI1 and MFI2 indication in each low-order virtual container channel, and executing steps S2-S6 based on the divided groups.
When the virtual container channel is a low-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the low-order virtual container channel supporting LCAS function into low-order LCAS groups, and dividing the low-order virtual container channel not supporting LCAS function into low-order non-LCAS groups. And analyzing the SS-bit in each low-order VC to judge which of TU-2/TU-12/TU-11 the low-order VC is. And obtaining V5 bytes in the low-order VC, if b5-b7 in the V5 bytes are 101, reading extension identification bits 12-19 in the K4 b1 bytes to identify whether GFP mapping is performed or not, namely, extension mark 0xD is expressed as GFP mapping. The K4 b2 byte, that is, the bit2 continuous 32 frames of K4, is read to form a 4 byte value, and it is determined whether to support LCAS function, and the low-order virtual container channels are divided into a low-order LCAS group and a low-order non-LCAS group according to the LCAS field. By grouping low-order virtual containers based on LCAS bytes, the complexity of the algorithm can be reduced to enable faster identification of channel members in the virtual concatenation group.
Similarly, based on the indication of the multiple frame numbers MFI1 and MFI2 in each low-order virtual container channel, the low-order LCAS group and the low-order non-LCAS group are further divided, the low-order virtual container channels with similar multiple frame numbers MFI1 and MFI2 are divided into one group, and steps S2-S6 are executed based on the divided groups. Because the multi-frame numbers MFI1 and MFI in the multiple virtual container channels in the virtual concatenation group are similar, the multi-frame numbers MFI1 and MFI2 can be further grouped based on the same time, so that the algorithm complexity is reduced, and the identification speed of the virtual concatenation group members is further improved.
The virtual container lanes VC within each virtual concatenation group have 2 attributes, one lane number and one sequence number (sequence indicator, SQ). The channel number of the virtual container channel represents the multiplexing number of its corresponding channel in the synchronous digital hierarchy multiplexing architecture and is the unique identification number of the corresponding channel in the synchronous digital hierarchy. When the members of the VC channels of the virtual concatenation group are combined together as a whole to transfer data, the members are numbered according to the sequence of loading the data stream into the VC channels, the serial numbers are serial numbers SQ, and the serial numbers SQ corresponding to each VC channel are put in overhead bytes of the VC channels to be transferred. The member serial number is virtual concatenation information sent by the source end, the high order is stored in H4 bytes, and the low order is stored in K4 bytes. The host analyzes each virtual container channel VC in the SDH signal, and obtains the serial number of each virtual container channel VC by extracting H4 or K4 byte information in each channel multiframe, thereby obtaining and storing the channel number and serial number SQ corresponding to each virtual container channel VC. If the x virtual container channels VC form a virtual concatenation group VCG, then the SQ values of these virtual container channels VC are respectively 0 to x-1. In this embodiment, the sequence numbers corresponding to the virtual container channels VC1, VC2, and VC3 are respectively 0, 2, and 1, and the sequence numbers corresponding to the virtual container channels VC5 and VC6 are respectively 0 and 1, and since the sink does not know the configuration condition of each member of the virtual concatenation group of the source, the sink can obtain the channel number of the VC channel and the corresponding sequence number SQ, but cannot determine which virtual concatenation group the VCs belong to, so that it is necessary to further confirm the composition of the channel members in each virtual concatenation group.
Dividing the virtual container channel numbers with the same serial numbers into a group based on the channel numbers and the serial numbers SQ corresponding to the extracted virtual container channels VC, grouping all the virtual container channels to obtain a plurality of serial number groups, sequencing the serial number groups according to the sequence from the small serial number to the large serial number, and recording the number of the virtual container channels in each serial number group, wherein the serial number groups are marked as SQ0, SQ1, … SQn … and SQx-1 in sequence from the small serial number to the large serial number, and x is represented as the serial number. According to the above embodiment, the sequence numbers corresponding to the virtual container channels VC1, VC2, and VC3 are 0, 2, and 1, respectively, the sequence numbers corresponding to the virtual container channels VC5 and VC6 are 0 and 1, and after grouping, the number of virtual container channels in the SQ0 group including VC1 and VC5 is 2, the number of virtual container channels in the SQ1 group including VC3 and VC6 is 2, the number of virtual container channels in the SQ2 group including VC2 is 1, and the number of virtual container channels in the SQ2 group is 1.
Starting to match the first sequence number packet SQ0, performing member matching according to a virtual concatenation group member matching principle until the sequence number packet SQx-1 is ended, wherein the virtual concatenation group member matching principle comprises steps S3-S5. Matching is performed on the current sequence number packet SQn, and the current difference value between the number of virtual container channels in the current sequence number packet SQn and the number of virtual container channels in the next sequence number packet SQn+1 is calculated, wherein the current difference value represents the number of virtual concatenation groups VCG from SQ0 to SQn. Because the number of virtual container channels VC in a single virtual concatenation group VCG is 0 to x-1, i.e. the number of virtual container channels in each virtual concatenation group VCG is 0, and sequentially from 0 to x-1, for the current sequence number packet SQn, the difference between the number of virtual container channels in the sequence number packet SQn and the number of virtual container channels in the subsequent sequence number packet sqn+1 is the number of virtual concatenation groups VCG in the sequence number packet SQ0 to SQn. Taking the above embodiment as an example for illustration, the number of virtual container channels in the SQ0 group is 2, the number of virtual container channels in the SQ1 group includes VC3 and VC6, the number of virtual container channels in the SQ2 group is 2, the number of virtual container channels in the SQ2 group includes VC2, the number of virtual container channels in the SQ2 group is 1, when the first sequence number group SQ0 matches, for the sequence number group SQ0, the difference between the number of virtual container channels in the SQ0 group and the number of virtual container channels in the SQ1 group is 0, which means that the number of virtual concatenation groups VCG in SQ0 to SQ0 is 0, that is, the number of virtual concatenation groups VCG in SQ0 is 0; when the sequence number packet SQ1 matches, for the sequence number packet SQ1, the difference between the number of virtual container channels in the SQ1 group and the number of virtual container channels in the SQ2 group is 1, which means that the number of virtual concatenation groups VCGs in SQ0 to SQ1 is 1, because in this embodiment, the maximum value of SQ is 2, that is, the number of virtual container channels in SQ2 is 1, and when the virtual container channels in SQ2 are allocated to one virtual concatenation group, the number of virtual container channels in SQ0 and SQ1 is reduced by one, so that the number of virtual container channels remaining in SQ1 is the number of virtual concatenation groups VCGs in SQ0 to SQ1, that is, the number of virtual concatenation groups VCG is 1. From this, it follows that, by analogy, when the current sequence number packet SQn matches, the number of virtual container channels in the sequence number packet SQn differs from the number of virtual container channels in the subsequent sequence number packet sqn+1 by the number of virtual concatenation groups VCG from sequence number packet SQ0 to sequence number packet SQn.
When the current sequence number packet SQn is matched, channel member matching is performed by executing the following virtual concatenation group member matching principle. For the current sequence number packet SQn, when the difference between the number of virtual container channels in the sequence number packet SQn and the number of virtual container channels in the next sequence number packet sqn+1 is greater than 0, selecting one virtual container channel number from each packet from SQ0 to SQn in turn, and forming a temporary virtual concatenation group by using all the selected virtual container channel numbers, wherein the virtual container channel numbers in the temporary virtual concatenation group formed each time are inconsistent, so as to ensure that the combination formed by each virtual container channel in each sequence number packet can be traversed. And carrying out service test on the temporary virtual concatenation group and the received SDH signal, if no frame loss (OOF) alarm exists, determining that the temporary virtual concatenation group is a correct virtual concatenation group, deleting all virtual container channel numbers in the correct virtual concatenation group from all serial number groups, if the frame loss (OOF) alarm exists, determining that the temporary virtual concatenation group is an incorrect combination, and continuing to select a virtual container channel number from each group from SQ0 to SQn to form the temporary virtual concatenation group, and continuing to execute the test steps. When the difference value is 0, the number of virtual concatenation groups VCG in sequence number packets SQ0 to SQn is 0, the current sequence number packet SQn is not allocated, the matching of sequence number packet SQn+1 is continuously executed, and the steps S3-S4 are repeatedly executed. And so on, according to the matching scheme, the sequence number packets are matched from SQ0, channel member matching is carried out on each sequence number packet until the last sequence number packet SQn+1 is matched, and a plurality of correct virtual concatenation groups can be obtained. As an implementation manner of the present invention, after all virtual container channel numbers in the correct virtual concatenation group are deleted from all serial number packets, the virtual container channel number is recalculated for each serial number packet, and the virtual concatenation group member matching principle is executed for each serial number packet. Therefore, based on the obtained virtual container channel numbers and corresponding serial numbers in each correct virtual concatenation group, virtual container channel members in each virtual concatenation group in the received SDH signal are determined, so that each correct virtual concatenation group can be resolved from the received SDH signal, and each virtual container channel member of each virtual concatenation group can be resolved. Under the condition that the member configuration of the source virtual concatenation group cannot be obtained, the correct member configuration of the virtual concatenation group can be automatically identified at the host through the technical scheme, so that the management and the practicability of a user are facilitated, and the flexibility of a product is improved.
As one implementation mode of the invention, when the current sequence number packet SQn is matched, the difference value between the number of virtual container channels in the sequence number packet SQn and the number of virtual container channels in the subsequent sequence number packet SQn+1 is used for representing the number of virtual concatenation groups VCG from the sequence number packet SQ0 to the sequence number packet SQn, so when the current sequence number packet SQn is matched, the number of virtual container channels is selected from each packet from SQ0 to SQn to form a temporary virtual concatenation group, the number of times of forming the temporary virtual concatenation group is reduced as much as possible based on the number of the virtual concatenation groups VCG, thereby reducing the complexity of an algorithm and further reducing the consumption of logic resources. Specifically, when the current sequence number packet SQn is matched, if the determined correct virtual concatenation group is smaller than the number of virtual concatenation groups VCGs in the sequence from SQ0 to SQn, that is, the obtained correct virtual concatenation group has not reached the number of virtual concatenation groups VCGs, further executing steps of sequentially selecting one virtual container channel number from each packet in the sequence from SQ0 to SQn, forming a temporary virtual concatenation group by using all the selected virtual container channel numbers, and if the determined correct virtual concatenation group is equal to the number of virtual concatenation groups VCGs in the sequence from SQ0 to SQn, stopping executing the operation of matching the current sequence number packet SQn to start executing the matching of the next sequence number packet sqn+1. The scheme can reduce the matching times, so that the member matching of the virtual concatenation can be recognized more quickly.
Before performing service test on the temporary virtual concatenation group and the received SDH signal, the invention obtains GFP field in SDH payload information in the temporary virtual concatenation group, if PTI field in GFP field is fixed value 000 and UPI field is fixed value 00000001, then judging GFP field information in the temporary virtual concatenation group is correct, continuing to perform service test on the temporary virtual concatenation group and the received SDH signal, otherwise, determining that the temporary virtual concatenation group is wrong. Because in the GFP mapping of the Ethernet, the PTI field of GFP is a fixed value 000, the UPI field is a fixed value 00000001, and the 5 th byte type [15:8] of GFP corresponds to the PTI and UPI can be extracted according to the obtained overhead, if the field is incorrect, the VCG combination is considered to have GFP frame errors, and the GFP frame errors can be directly eliminated, so that the identification speed of members of the virtual concatenation group is further accelerated.
When the temporary virtual concatenation groups and the received SDH signals are subjected to service test, based on the number M of service configurations supported by hardware, the M different temporary virtual concatenation groups are simultaneously subjected to service test with the received SDH signals at one time, and whether each temporary virtual concatenation group has a frame loss alarm is judged, so that the service test speed is increased, and the member configuration of the virtual concatenation groups is further ensured to be rapidly determined.
The present invention will be described in detail with reference to specific examples. If the virtual container channel number and the serial number of the SDH signal are analyzed, the virtual container channel number and the serial number are expressed in the following table.
Firstly, SQO is matched, the difference between the number of channels in SQ1 and the number of channels in SQ0 is 1, which indicates that the number of virtual concatenation groups of SQ0 is 1, therefore, one VC channel is selected from SQ0 to configure a temporary virtual concatenation group, namely, one channel is selected from VC numbers 2, 1 and 6 to form the temporary virtual concatenation group, service test is carried out on the temporary virtual concatenation group and a received SDH signal, whether a frame loss alarm exists or not is judged, if no frame loss alarm exists, the virtual concatenation group is correct, if the frame loss alarm exists, the virtual concatenation group is wrong, another channel is required to form the temporary virtual concatenation group, and service test is continuously carried out. In this embodiment, assuming that the virtual concatenation group formed by VC number 1 is correct, a virtual concatenation group VCG0 is determined, and its member is VC1. Deleting VC1 from SQ0, wherein the corresponding table of the virtual container channel number and the serial number is as follows:
matching the SQ1 group, wherein the difference value between SQ1 and SQ2 is 0, which indicates that the number of virtual concatenation groups from SQ0 to SQ1 is 0, so that the matching of the SQ2 group is continued, the difference value between SQ3 and SQ2 is 1, which indicates that the number of virtual concatenation groups from SQ0 to SQ2 is 1, and one VC is selected from the SQ0, SQ1 and SQ2 to form one virtual concatenation group for service test, for example, the test result is as follows: the virtual concatenation group formed by VC2, VC4 and VC7 is not correct, the virtual concatenation group formed by VC6, VC3 and VC5 is not correct, the virtual concatenation group formed by VC2, VC3 and VC7 is correct, the virtual concatenation group formed by VC6, VC4 and VC5 is not correct, thus determining the virtual concatenation group VCG1, and the members thereof are VC2, VC3 and VC7. And matching the SQ3 group by analogy to obtain a correct virtual concatenation group VCG2, wherein the members of the virtual concatenation group VCG2 are VC6, VC4, VC5 and VC8. The member configuration of each virtual concatenation in the SDH signal can thus be obtained.
As an implementation of the present invention, the step of selecting virtual container channel numbers from each of sequence number packets SQ0 to SQn to form a temporary virtual concatenation group includes: selecting one virtual container channel from sequence number group SQ0 to SQn to form M temporary virtual cascade groups for the first time, carrying out service test on the M temporary virtual cascade groups for the first time and the received SDH signals respectively at the same time during the first service test to judge whether each temporary virtual cascade group has frame loss alarm, carrying out sequential replacement on each virtual container channel in SQn-1 based on the same steps until the virtual container channel combination in SQn 0 to SQn is completed by replacing the first virtual container channel with the last virtual container channel during the second service test, carrying out service test on the M temporary virtual cascade groups for the second time, marking the virtual container channels successfully subjected to service test, carrying out service test on the virtual container channels subjected to marking in the polling process, and so on until the last virtual container channel in SQn is replaced to the position of the first container channel, carrying out sequential replacement on each virtual container channel in SQn-1 based on the same steps until the virtual container channel combination in SQn 0 to SQn is completed, thereby ensuring that the virtual cascade can be successfully completed, and the virtual cascade can be successfully calculated, and the virtual cascade can be successfully completed.
In an embodiment of the present invention as shown in fig. 4, the present invention provides an automatic virtual concatenation group member identification system implemented based on FPGA, the system comprising:
a parsing module 41, configured to parse each virtual container channel in the received SDH signal, and extract and store a channel number and a serial number corresponding to each virtual container channel;
a grouping module 42, configured to divide the virtual container channel numbers with the same sequence numbers into a group, group all virtual container channels to obtain a plurality of sequence number packets, order the sequence number packets according to the sequence number from small to large, and record the number of the virtual container channels in each sequence number packet, where the sequence number packets are sequentially marked as SQ0, SQ1, … SQn …, SQx-1 from small to large, where n is denoted as a sequence number, and perform matching on each sequence number packet according to the virtual concatenation group member matching principle from the first sequence number packet SQ0 until the sequence number packet SQx-1 ends;
a matching module 43, configured to perform matching on a current sequence number packet SQn, calculate a current difference between a number of virtual container channels in the current sequence number packet SQn and a number of virtual container channels in a subsequent sequence number packet sqn+1, where the current difference represents a number of virtual concatenation groups from sequence number packet SQn 0 to SQn, when the difference is greater than 0, sequentially select a virtual container channel number from each of sequence number packets SQ0 to SQn, form a temporary virtual concatenation group from each of the selected virtual container channel numbers, perform service testing on the temporary virtual concatenation group and the received SDH signal, determine that the temporary virtual concatenation group is a correct virtual concatenation group if there is no frame loss alarm, and delete all virtual container channel numbers in the correct virtual concatenation group from the corresponding sequence number packet, and determine that the temporary virtual concatenation group is erroneous if there is a frame loss alarm; when the difference value is 0, matching the sequence number packet SQn+1 is executed, and a matching module is repeatedly executed;
An acquisition module 44 is configured to determine, based on the acquired virtual container channel numbers and corresponding sequence numbers in each correct virtual concatenation group, virtual container channel members in each virtual concatenation group in the received SDH signal.
As an implementation manner of the present invention, the matching module 43 is specifically configured to, when the current sequence number packet SQn is matched, if the determined correct virtual concatenation group is smaller than the number of virtual concatenation groups VCGs in the sequence number packets SQ0 to SQn, perform steps of sequentially selecting one virtual container channel number from each packet in the sequence number packets SQ0 to SQn, and forming a temporary virtual concatenation group from all the selected virtual container channel numbers, and if the determined correct virtual concatenation group is equal to the number of virtual concatenation groups VCGs in the sequence number packets SQ0 to SQn, stop performing the operation of matching the current sequence number packet SQn to start performing the matching of the next sequence number packet sqn+1.
In one embodiment, an electronic device is provided that includes a processor and a memory storing executable code that when executed causes the processor to perform the steps of a virtual concatenation group member automatic identification method as described. From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by adding necessary general purpose hardware platforms, or may be implemented by a combination of hardware and software. Based on such understanding, the foregoing aspects, in essence and portions contributing to the art, may be embodied in the form of a computer program product, which may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (10)
1. The automatic virtual concatenation group member identification method based on the FPGA is characterized by comprising the following steps:
s1, analyzing each virtual container channel in a received SDH signal, and extracting and storing channel numbers and serial numbers corresponding to each virtual container channel;
s2, dividing virtual container channel numbers with the same serial numbers into a group, grouping all the virtual container channels to obtain a plurality of serial number groups, sequencing the serial number groups according to the sequence from small to large in serial number, and recording the number of the virtual container channels in each serial number group, wherein the serial number groups are marked as SQ0, SQ1, … SQn … and SQx-1 in sequence from small to large, n is expressed as the serial number, starting from the first serial number group SQ0, and performing matching on each serial number group according to a virtual concatenation group member matching principle until the serial number group SQx-1 is ended, and the virtual concatenation group member matching principle comprises the steps S3-S5;
S3, matching is carried out on the current sequence number packet SQn, and the current difference value between the number of virtual container channels in the current sequence number packet SQn and the number of virtual container channels in the subsequent sequence number packet SQn+1 is calculated, wherein the current difference value represents the number of virtual concatenation groups from sequence number packet SQ0 to SQn;
s4, if the current difference value is greater than 0, selecting a virtual container channel number from each of sequence number groups SQ0 to SQn in turn, forming a temporary virtual concatenation group by each selected virtual container channel number, carrying out service test on the temporary virtual concatenation group and the received SDH signal, if no frame loss alarm exists, determining that the temporary virtual concatenation group is a correct virtual concatenation group, deleting all virtual container channel numbers in the correct virtual concatenation group from the corresponding sequence number groups, and if the frame loss alarm exists, determining that the temporary virtual concatenation group is wrong;
s5, if the current difference value is 0, matching the sequence number packet SQn+1, and repeating the steps S3-S4;
s6, based on the obtained virtual container channel numbers and corresponding serial numbers in each correct virtual concatenation group, determining the virtual container channel members in each virtual concatenation group in the received SDH signal.
2. The automatic identifying method of virtual concatenation group members based on FPGA implementation as claimed in claim 1, wherein the step S1 includes:
the segment overhead and channel overhead of each virtual container channel in the SDH signal are parsed to determine whether the virtual container channel is a higher order virtual container or a lower order virtual container.
3. The automatic identifying method of virtual concatenation group members based on FPGA implementation as claimed in claim 2, wherein the step S1 further includes:
when the virtual container channel is a high-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the high-order virtual container channel supporting the LCAS function into a high-order LCAS group, and dividing the high-order virtual container channel not supporting the LCAS function into a high-order non-LCAS group;
dividing the high-order virtual container channels with similar values of the multi-frame indication MFI1 and the multi-frame indication MFI2 into one group based on the multi-frame indication MFI1 and the multi-frame indication MFI2 in each high-order virtual container channel, and further dividing the high-order virtual container channels with similar values of the multi-frame indication MFI1 and the multi-frame indication MFI2 into one group based on each divided group, wherein the MFI1 is a first-stage multi-frame indication, and the MFI2 is a second-stage multi-frame indication.
4. The automatic identifying method of virtual concatenation group members based on FPGA implementation as claimed in claim 2, wherein the step S1 further includes:
When the virtual container channel is a low-order virtual container, analyzing LCAS byte information in the virtual container channel, dividing the low-order virtual container channel supporting the LCAS function into a low-order LCAS group, and dividing the low-order virtual container channel not supporting the LCAS function into a low-order non-LCAS group;
and dividing the low-order virtual container channels with similar values of the multi-frame indication MFI1 and the MFI2 into one group based on the multi-frame indication MFI1 and the MFI2 in each low-order virtual container channel, wherein the MFI1 is a first-stage multi-frame indication, and the MFI2 is a second-stage multi-frame indication.
5. The automatic identifying method of virtual concatenation group members based on FPGA implementation as claimed in claim 1, wherein the step S4 includes:
and after deleting all virtual container channel numbers in the correct virtual concatenation group from the corresponding sequence number groups, recalculating the number of the virtual container channels for each sequence number group.
6. The automatic identifying method of virtual concatenation group members based on FPGA implementation as claimed in claim 1, wherein the step S4 includes:
when the current sequence number packet SQn is matched, if the determined correct virtual concatenation group is smaller than the number of virtual concatenation groups VCG in sequence number packets SQ0 to SQn, the step of sequentially selecting one virtual container channel number from each packet in sequence number SQ0 to SQn and forming a temporary virtual concatenation group by all the selected virtual container channel numbers is executed, and if the determined correct virtual concatenation group is equal to the number of virtual concatenation groups VCG in sequence number packets SQ0 to SQn, the execution of the operation of matching the current sequence number packet SQn is stopped to start the execution of the matching of the next sequence number packet SQn+1.
7. The automatic identification method of virtual concatenation group members based on FPGA implementation of claim 1, wherein step S4 includes;
before the service test is carried out on the temporary virtual concatenation group and the received SDH signal, a GFP field in SDH payload information in the temporary virtual concatenation group is obtained, if the PTI field in the GFP field is a fixed value 000 and the UPI field is a fixed value 00000001, the GFP field information in the temporary virtual concatenation group is judged to be correct, the service test of the temporary virtual concatenation group and the received SDH signal is continuously carried out, otherwise, the temporary virtual concatenation group is determined to be incorrect.
8. The automatic identifying method of virtual concatenation group members based on FPGA implementation as claimed in claim 1, wherein the step S4 includes:
when the temporary virtual concatenation group and the received SDH signal are subjected to service test, based on the service configuration number M supported by hardware, M different temporary virtual concatenation groups are supported at one time to respectively and simultaneously carry out service test with the received SDH signal, and whether each temporary virtual concatenation group has a frame loss alarm or not is judged.
9. An automatic virtual concatenation group member identification system implemented based on an FPGA, the system comprising:
The analysis module is used for analyzing each virtual container channel in the received SDH signal, and extracting and storing channel numbers and serial numbers corresponding to each virtual container channel;
a grouping module, configured to divide virtual container channel numbers with the same sequence number into a group, group all virtual container channels to obtain a plurality of sequence number groups, order the sequence number groups according to the sequence number from small to large, and record the number of the virtual container channels in each sequence number group, where the sequence number groups are sequentially marked as SQ0, SQ1, … SQn …, SQx-1 from small to large, where n is denoted as a sequence number, and starting from the first sequence number group SQ0, perform matching on each sequence number group according to a virtual concatenation group member matching principle until the sequence number group SQx-1 ends;
the matching module is used for executing matching on the current sequence number packet SQn, calculating the current difference value between the number of virtual container channels in the current sequence number packet SQn and the number of virtual container channels in the next sequence number packet SQn+1, wherein the current difference value represents the number of virtual concatenation groups from sequence number packet SQ0 to SQn, if the current difference value is greater than 0, selecting one virtual container channel number from each packet in sequence number packets SQ0 to SQn, forming a temporary virtual concatenation group by each selected virtual container channel number, performing service test on the temporary virtual concatenation group and the received SDH signal, if no frame loss alarm exists, determining that the temporary virtual concatenation group is the correct virtual concatenation group, and deleting all virtual container channel numbers in the correct virtual concatenation group from the corresponding sequence number packet, if the frame loss alarm exists, determining that the temporary virtual concatenation group is wrong, if the current difference value is 0, executing matching of sequence number packet SQn+1, and repeatedly executing the matching module;
And the acquisition module is used for determining the virtual container channel members in each virtual continuous group in the received SDH signal based on the acquired virtual container channel numbers and corresponding serial numbers in each correct virtual concatenated group.
10. The FPGA-based implemented virtual concatenation group member automatic identification system of claim 9,
the matching module is specifically configured to, when the current sequence number packet SQn is matched, if the determined correct virtual concatenation group is smaller than the number of virtual concatenation groups VCGs in the sequence number packets SQ0 to SQn, execute the step of sequentially selecting one virtual container channel number from each packet in the sequence number packets SQ0 to SQn, and form a temporary virtual concatenation group from all the selected virtual container channel numbers, and if the determined correct virtual concatenation group is equal to the number of virtual concatenation groups VCG in the sequence number packets SQ0 to SQn, stop executing the operation of matching the current sequence number packet SQn to start executing the matching of the next sequence number packet sqn+1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310831123.9A CN116545573B (en) | 2023-07-07 | 2023-07-07 | Virtual concatenation group member automatic identification method and system based on FPGA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310831123.9A CN116545573B (en) | 2023-07-07 | 2023-07-07 | Virtual concatenation group member automatic identification method and system based on FPGA |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116545573A CN116545573A (en) | 2023-08-04 |
| CN116545573B true CN116545573B (en) | 2023-09-08 |
Family
ID=87451060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310831123.9A Active CN116545573B (en) | 2023-07-07 | 2023-07-07 | Virtual concatenation group member automatic identification method and system based on FPGA |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116545573B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229692A1 (en) * | 2001-02-02 | 2002-08-07 | BRITISH TELECOMMUNICATIONS public limited company | Method and apparatus for tunnelling data in a network |
| CN1462118A (en) * | 2002-05-27 | 2003-12-17 | 华为技术有限公司 | Treatment method of sequence number ordering in virtual cascade connection |
| KR20040028013A (en) * | 2002-09-28 | 2004-04-03 | 엘지전자 주식회사 | Apparatus for processing of virtual concatenation in synchronous digital hierarchy |
| CN1674478A (en) * | 2004-03-23 | 2005-09-28 | 华为技术有限公司 | Method and apparatus for virtual container frame analysis |
| EP1926256A1 (en) * | 2006-11-22 | 2008-05-28 | Alcatel Lucent | Method of time aligning the members of a virtual concatenated group in a synchronous transmission system |
| CN101202601A (en) * | 2006-12-14 | 2008-06-18 | 中兴通讯股份有限公司 | Method for recovering virtual cascades |
| CN101272212A (en) * | 2008-05-07 | 2008-09-24 | 中兴通讯股份有限公司 | Ranking method of virtual concatenation group member |
| WO2010134088A1 (en) * | 2009-05-22 | 2010-11-25 | Tejas Networks Limited | A method to transmit multiple data-streams of varying capacity data using virtual concatenation |
| CN101938320A (en) * | 2010-09-07 | 2011-01-05 | 中兴通讯股份有限公司 | Method and device for sequencing multiple virtual concatenation group members |
| CN104796289A (en) * | 2015-04-22 | 2015-07-22 | 国家电网公司 | Electric power SDH data service protection configuration method and data service transmission method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8081665B2 (en) * | 2005-03-04 | 2011-12-20 | PMC—Sierra, Inc. | Virtual concatenation of PDH signals |
-
2023
- 2023-07-07 CN CN202310831123.9A patent/CN116545573B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1229692A1 (en) * | 2001-02-02 | 2002-08-07 | BRITISH TELECOMMUNICATIONS public limited company | Method and apparatus for tunnelling data in a network |
| CN1462118A (en) * | 2002-05-27 | 2003-12-17 | 华为技术有限公司 | Treatment method of sequence number ordering in virtual cascade connection |
| KR20040028013A (en) * | 2002-09-28 | 2004-04-03 | 엘지전자 주식회사 | Apparatus for processing of virtual concatenation in synchronous digital hierarchy |
| CN1674478A (en) * | 2004-03-23 | 2005-09-28 | 华为技术有限公司 | Method and apparatus for virtual container frame analysis |
| EP1926256A1 (en) * | 2006-11-22 | 2008-05-28 | Alcatel Lucent | Method of time aligning the members of a virtual concatenated group in a synchronous transmission system |
| CN101202601A (en) * | 2006-12-14 | 2008-06-18 | 中兴通讯股份有限公司 | Method for recovering virtual cascades |
| CN101272212A (en) * | 2008-05-07 | 2008-09-24 | 中兴通讯股份有限公司 | Ranking method of virtual concatenation group member |
| WO2010134088A1 (en) * | 2009-05-22 | 2010-11-25 | Tejas Networks Limited | A method to transmit multiple data-streams of varying capacity data using virtual concatenation |
| CN101938320A (en) * | 2010-09-07 | 2011-01-05 | 中兴通讯股份有限公司 | Method and device for sequencing multiple virtual concatenation group members |
| CN104796289A (en) * | 2015-04-22 | 2015-07-22 | 国家电网公司 | Electric power SDH data service protection configuration method and data service transmission method |
Non-Patent Citations (1)
| Title |
|---|
| 100Mbps Ethernet data transmission over SDH networks using Cross Virtual Concatenation;Sunanda Manke;2008 16th IEEE International Conference on Networks;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116545573A (en) | 2023-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USRE41417E1 (en) | Concatenation of containers in synchronous digital hierarchy network | |
| US8942263B2 (en) | Data transmission in an SDH network | |
| JP4215355B2 (en) | Communications system | |
| US9430378B2 (en) | Differential delay compensation | |
| ITMI20010726A1 (en) | METHOD AND APPARATUS TO MAP FAST ETHERNET DATA INTERFACES IN A SINGLE VC-4 VIRTUAL CONTAINER OF A STM-1 / OC-3 PAYLOAD TRANSMITTED IN U | |
| US6700900B1 (en) | Transport of concatenated containers in a synchronous information transmission network | |
| US5428612A (en) | Synchronous transmission system | |
| US6839871B2 (en) | Method for transparent multiplexing of SONET/ SDH streams | |
| EP1654651B1 (en) | Method and apparatus for providing tandem connection, performance monitoring, and protection architectures over ethernet protocols | |
| US20020018261A1 (en) | Transmission system | |
| US8306066B2 (en) | Transmission device | |
| CN116545573B (en) | Virtual concatenation group member automatic identification method and system based on FPGA | |
| US7447239B2 (en) | Transmission path monitoring | |
| US20080101377A1 (en) | Efficient Scalable Implementation of VCAT/LCAS for SDH and PDH Signals | |
| US6987766B2 (en) | Transport of SONET signals over an optical communications network | |
| JPH09214458A (en) | Radio repeater | |
| US6791991B1 (en) | Channel sequencing using a round-robin scheduler | |
| JP2000049791A (en) | Ip datagram encapsulation method and ip processor | |
| KR100271311B1 (en) | Pointer processing method of administrative unit and tributary unit | |
| JP3048827B2 (en) | Receive APS byte protection method | |
| JP2690627B2 (en) | Asynchronous data transmission method | |
| EP2082509B1 (en) | Mapping six (6) eight (8) mbit/s signals to a sonet frame | |
| CN114020519A (en) | SDH data quality analysis method and system | |
| CN112272359A (en) | Device and method for identifying and extracting signaling based on X86 system | |
| JP2586339B2 (en) | Receiving pointer processing apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |