CN108880733A - The method and device of low speed TDM business transmission is realized on unified load bearing equipment - Google Patents
The method and device of low speed TDM business transmission is realized on unified load bearing equipment Download PDFInfo
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- CN108880733A CN108880733A CN201810541708.6A CN201810541708A CN108880733A CN 108880733 A CN108880733 A CN 108880733A CN 201810541708 A CN201810541708 A CN 201810541708A CN 108880733 A CN108880733 A CN 108880733A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/08—Time-division multiplex systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
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- Quality & Reliability (AREA)
- Time-Division Multiplex Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of method and devices that the transmission of low speed TDM business is realized on unified load bearing equipment, are related to field of communication technology.The low speed TDM business that this method is suitable for multichannel phase same rate is transmitted, and is included the following steps：The low speed TDM business of continuous phase same rate is cut into the low speed TDM slice of regular length；Multi-path low speed TDM slice is together in series by fixed byte location after processing and forms the payload of grouping packet, and is packaged into ethernet frame and is sent to egress；Egress extracts the payload of the corresponding low speed TDM slice in every road in the fixed byte position of ethernet frame, and recovers continuous low speed TDM business.The present invention not only meets the unified load bearing equipment based on packet exchanging structure for the high efficiency of low speed TDM service bearer, the requirement of low time delay, and extends the application scenarios of unified load bearing equipment, extends the life cycle of equipment.
Description
Technical field
The present invention relates to fields of communication technology, are specifically a kind of realization low speed TDM on unified load bearing equipment
The method and device of (Time-Division Multiplexing, time division multiplexing) business transmission.
Background technique
Currently, the unified load bearing equipment based on packet exchanging structure can realize the carrying function of low speed TDM in principle
Energy.Existing general method is exactly to be sliced in the source of business, along with management frame capitiform is wrapped at grouping, further according to purpose
Egress is sent to by the unified packet-based architecture for exchanging of load bearing equipment in address；The data convert of slice is gone out again in egress side
The TDM business of low speed.
But it is found in practical application, which has the following disadvantages：Due to E1 signal (general TDM low speed signal, rate
It is too low for the low speed TDM business speed such as 2.048Mbits/S), the waiting time is cached too when most short grouping packet is cut into source side
Long, so that the device forwards time of low speed TDM business is too long, low efficiency, time delay are big, can not fit so as to cause certain application scenarios
With.
Therefore, how to realize that the low time delay of low speed TDM business is high on the unified load bearing equipment based on packet exchanging structure
Effect transmission, is those skilled in the art's urgent problem to be solved.
Summary of the invention
The purpose of the invention is to overcome the shortcomings of above-mentioned background technique, one kind is provided and is realized on unified load bearing equipment
The method and device of low speed TDM business transmission solves the uniform service carrying based on packet exchanging structure in the prior art and sets
It is standby cannot efficiently low time delay transmission low speed TDM business the problem of.
To achieve the above objectives, the present invention provides a kind of side that the transmission of low speed TDM business is realized on unified load bearing equipment
Method, the low speed TDM business suitable for multichannel phase same rate are transmitted, are included the following steps：
The low speed TDM business of continuous phase same rate is cut into the low speed TDM slice of regular length；By multi-path low speed TDM
Slice is together in series by fixed byte location forms the payload of grouping packet after processing, and is packaged into ethernet frame and is sent to place
End；Egress extracts the payload of the corresponding low speed TDM slice in every road, and the company of recovering in the fixed byte position of ethernet frame
Continuous low speed TDM business.
Based on the above technical solution, multi-path low speed TDM is sliced processed concrete operations and includes：For every road low speed
TDM slice adds control word frame head, obtains service management frame of the multichannel with low speed TDM slice for payload.When composition grouping packet,
It multichannel with low speed TDM is sliced the service management frame for payload is together in series according to fixed byte location and form grouping packet
Payload.
Based on the above technical solution, multichannel is sliced the service management frame for payload according to fixation with low speed TDM
Byte location be together in series composition grouping packet payload, specifically include following operation：
If every road is L with the length that low speed TDM is sliced as the service management frame of payload, service management frame in the road N is existed
Byte location in grouping packet payload is fixed as：For (N-1) * L byte to N*L-1 byte, N is positive integer, and 1≤N≤(with
The too maximum packet length/L of net packet)；Multi-channel service management frame is together in series according to the byte location of above-mentioned fixation and forms grouping packet
Payload.
Based on the above technical solution, control word frame head includes following field：
L bit：To alert indication bit；
R bit：For egress defect indication bit；
RSV and FRG：For reserved and segmentation bits；
LEN：For length field, at least 6 bits；
Sequence Number：For packet serial number, at least 16 bits；
Timestamp：For timestamp value, at least 32 bits.
Based on the above technical solution, the frame head of the ethernet frame includes：Source address, destination address, MPLS/
VLAN mark.
Based on the above technical solution, egress receives be packaged into the grouping packet of ethernet frame after, can according to ether
The MPLS/VLAN of net frame is identified, and the grouping packet for being packaged into ethernet frame received is accordingly forwarded.
Based on the above technical solution, the low speed TDM that continuous low speed TDM business is cut into regular length is sliced it
Before, it further include following operation：The received every road signal of unified load bearing equipment based on packet exchanging structure is decomposed, is obtained
The low speed TDM business of continuous phase same rate.
The present invention also provides a kind of device for realizing the transmission of low speed TDM business on unified load bearing equipment, which includes
Set on the source and egress of unified load bearing equipment；The source is used for：The low speed TDM business of continuous phase same rate is cut into solid
The low speed TDM of measured length is sliced；Multi-path low speed TDM slice is together in series by fixed byte location after processing and forms grouping
The payload of packet, and be packaged into ethernet frame and be sent to egress；The egress is used for：It is mentioned in the fixed byte position of ethernet frame
The payload of the corresponding low speed TDM slice in every road is taken out, and recovers continuous low speed TDM business.
Based on the above technical solution, the source of the device includes：Signal slices module, being used for will be continuous identical
The low speed TDM business of rate is cut into the low speed TDM slice of regular length；It is sliced composite module, for cutting multi-path low speed TDM
Piece is together in series by fixed byte location forms the payload of grouping packet after processing；Ethernet frame package module is used for group
At grouping encapsulating dress up ethernet frame；Ethernet frame sending module, for packaged ethernet frame to be sent to egress；
The egress of the device includes：It is sliced decomposing module, for extracting often in the fixed byte position of ethernet frame
The payload of the corresponding low speed TDM slice in road；Signal recombination module, for recovering according to the every road low speed TDM slice extracted
Continuous low speed TDM business.
Based on the above technical solution, the source further includes signal decomposition module, which is used for：
The received every road signal of unified load bearing equipment based on packet exchanging structure is decomposed, the low of continuous phase same rate is obtained
Fast TDM business；The egress further includes ethernet frame receiving module, which is used for：The envelope that will be received
The grouping packet for dressing up ethernet frame is accordingly forwarded.
The beneficial effects of the present invention are：
Compared with prior art, the present invention is when realizing the transmission of low speed TDM business on unified load bearing equipment, and source can will be more
The low speed TDM slice of road phase same rate, which is together in series, to be formed length biggish grouping packet and is sent, and both ensure that so uniformly
High efficiency when load bearing equipment transmits low speed TDM business, while also meeting requirement of the business to equipment low time delay；Also,
It is to be sliced multi-path low speed TDM to be together in series by fixed byte location, so that egress is cut carrying out low speed TDM in group packet
When the acquisition of piece, the low speed TDM slice on corresponding every road directly can be extracted in fixed byte position, extraction efficiency is more
Height meets unified load bearing equipment for the high efficiency of low speed TDM service bearer, the requirement of low time delay, to extend unification
The application scenarios of load bearing equipment extend the life cycle of equipment.
Detailed description of the invention
Fig. 1 is the flow chart for realizing the method for low speed TDM business transmission in the embodiment of the present invention on unified load bearing equipment；
Fig. 2 is the structural frames for realizing the device of low speed TDM business transmission in the embodiment of the present invention on unified load bearing equipment
Figure；
Fig. 3 is the knot for realizing the device of low speed TDM business transmission in another embodiment of the present invention on unified load bearing equipment
Structure block diagram；
Fig. 4 is the form schematic diagram of service management frame in one embodiment of the invention；
Fig. 5 is the form schematic diagram of control word frame head in service management of embodiment of the present invention frame；
Fig. 6 is the form schematic diagram of ethernet frame in the embodiment of the present invention.
Specific embodiment
The embodiment of the present application is by providing a kind of method and dress for realizing the transmission of low speed TDM business on unified load bearing equipment
It sets, solving the uniform service load bearing equipment based on packet exchanging structure in the prior art efficiently cannot transmit low speed by low time delay
The problem of TDM business, not only meet unified load bearing equipment for the high efficiency of low speed TDM service bearer, the requirement of low time delay,
And the application scenarios of unified load bearing equipment are extended, extend the life cycle of equipment.
In order to solve the above technical problems, the technical solution general thought of the embodiment of the present application is as follows：By the low of phase same rate
Fast TDM business is cut into the low speed TDM slice (that is, being cut into short packet) of regular length, while will in order to improve the forward efficiency of equipment
Multi-path low speed TDM slice is together in series by fixed byte location after processing forms the payload of grouping packet, and is packaged into ether
Net frame is sent to egress；The length that egress is sliced according to low speed TDM extracts the low of corresponding every road in fixed byte position
The payload of fast TDM slice, and recover continuous low speed TDM business.
It is understood that according to the method described above when realizing the transmission of low speed TDM business on unified load bearing equipment, source
Multi-path low speed TDM slice can be together in series and form length biggish grouping packet and send, both ensure that unified carry in this way
High efficiency when equipment transmits low speed TDM business, while also meeting requirement of the business to equipment low time delay；Also, in group
Bao Shi is to be sliced multi-path low speed TDM to be together in series by fixed byte location, so that egress is carrying out low speed TDM slice
When acquisition, the low speed TDM slice on corresponding every road directly can be extracted in fixed byte position, extraction efficiency is higher, full
The unified load bearing equipment of foot is for the high efficiency of low speed TDM service bearer, the requirement of low time delay.
It is attached below in conjunction with specification to keep the technical problem to be solved in the present invention, technical solution and advantage clearer
Technical solution of the present invention is described in detail in figure and specific embodiment.
Embodiment one
It is shown in Figure 1, it present embodiments provides and a kind of realizes low speed TDM business transmission on unified load bearing equipment
Method, the low speed TDM business suitable for multichannel phase same rate are transmitted, and this approach includes the following steps：
Step S1, the low speed TDM business of continuous phase same rate is needed to be cut into the low speed TDM of regular length according to system
Slice, the road Bing Weimei low speed TDM slice add control word frame head, obtain service management of the multichannel with low speed TDM slice for payload
Frame.It is understood that the low speed TDM slice is the TDM for the regular length for needing to be cut into according to system in the present embodiment
Slice, wherein the regular length can choose any byte length within 48 bytes, such as：The bytes such as 16/24/32/48
Length.In concrete application, used slice length can be selected according to specific system, and the present embodiment is not done specifically
It limits.
Step S2, multichannel is sliced with low speed TDM and is connected for the service management frame of payload according to fixed byte location
To form the payload of grouping packet.It is understood that when due to series connection group packet being connected according to fixed byte location
, therefore, every road is sliced with low speed TDM all can have fixed length (that is, low for the service management frame of payload in grouping packet
Fast TDM slice length+control word frame head length) and fixed byte location.
Step S3, service management frame for payload is sliced for multichannel with low speed TDM to be together in series the grouping packet addition formed
MPLS/VLAN mark, is packaged into ethernet frame；And packaged ethernet frame is sent out by the exchange network based on ethernet frame
It send to egress.
Step S4, egress is according to the length of every road service management frame (i.e. length+control word frame head of low speed TDM slice
Length), the corresponding service management frame in every road is extracted at the fixed byte position in the grouping packet for being packaged into ethernet frame；And
It is utilized respectively differential clocks mode/synchronised clock pattern recovery and goes out continuous low speed TDM business.
Embodiment two
A kind of method for realizing the transmission of low speed TDM business on unified load bearing equipment provided in this embodiment, walks substantially
Suddenly it is the same as example 1, the difference is that：In this method, multichannel is sliced with low speed TDM to the service management frame for payload
It is together in series by fixed byte location and forms the payload of grouping packet, specifically include following steps：
1) if every road is L with the length that low speed TDM is sliced as the service management frame of payload, first via service management frame exists
Byte location in grouping packet payload is fixed as 0 to L-1, and byte location of the second tunnel service management frame in grouping packet payload is solid
It is set to L to 2L-1, byte location of the service management frame in third road in grouping packet payload is fixed as 2L to 3L-1, and so on.
That is, byte location of the service management frame in the road N in grouping packet payload is fixed as (N-1) * L byte to N*L-1 byte, N is positive
Integer, and 1≤N≤(the maximum packet length/L of Ethernet packet)；
2) multi-channel service management frame is together in series according to the byte location of above-mentioned fixation and forms the payload of grouping packet.
Embodiment three
A kind of method for realizing the transmission of low speed TDM business on unified load bearing equipment provided in this embodiment, walks substantially
Suddenly it is the same as example 1, the difference is that：It further include following operation before the step S1 of this method：It will be handed over based on grouping
The received every road signal of unified load bearing equipment for changing framework is decomposed, and the low speed TDM business of continuous phase same rate is obtained.
Example IV
A kind of method for realizing the transmission of low speed TDM business on unified load bearing equipment provided in this embodiment, walks substantially
Suddenly it is the same as example 1, the difference is that：In this method, the service management frame is by control word frame head and low speed TDM
Slice composition, the specific format of service management frame is as shown in figure 4, the format of control word frame head is as shown in Figure 5.
Wherein,
L bit is alarm indication bit, and L bit set indicates that the TDM payload in packet is invalid, and it is 1 that egress, which receives L bit,
Packet when, complete " 1 " can be sent to the corresponding port TDM；
R bit is egress defect indication bit, and R bit sets the receiving of 1 expression egress and loses；
RSV and FRG is that reserved and segmentation bits, sender must be set as 0, and recipient must ignore this bit；
Length(LEN)[0:It 5] is length field：Reserved, transmitting terminal is set as full 0；
Sequence Number[0:It 15] is packet serial number, one grouping packet of every transmission is recycled from 0 to 0xFFFF to be incremented by, place
End can detect whether packet loss according to this and resequence to the packet received；
Timestamp[0:It 31] is timestamp value, for carrying timing information.
Further, the frame head of the ethernet frame includes：Source address, destination address, MPLS/VLAN mark.In this base
It further include following operation between step S3~S4 on plinth：Egress is identified according to the MPLS/VLAN of ethernet frame, by what is received
The grouping packet for being packaged into ethernet frame is accordingly forwarded.It is understood that the pass-through mode accordingly forwarded can be single
It broadcasts, multicast and broadcast, and the selection of specific pass-through mode is determined by destination address.
In practical application, the format of ethernet frame includes：
Source address；
Destination address；
TPID+VLAN；
Label switched path (LSP) or pseudo-wire label stacking (PW Label Stack)；
The service management frame of first via low speed TDM slice；
The service management frame of second road low speed TDM slice；
……
The service management frame of the road N low speed TDM slice；
Frame Check Sequence (FCS).
Wherein, the channel number that VLAN value and label switched path define corresponds；16 systems of label switched path value
It indicates, and each label switched path value and the signal path of combination payload correspond.Specifically, the lattice of ethernet frame
Formula is as shown in Figure 6.
Embodiment five
Based on the same inventive concept, the embodiment of the invention also provides one kind realizes low speed TDM on unified load bearing equipment
The device of business transmission, since the principle that the device solves the problems, such as is similar to the above method, the implementation of the device can be joined
The implementation of square method, overlaps will not be repeated.
Specifically, the dress provided in an embodiment of the present invention that the transmission of low speed TDM business is realized on unified load bearing equipment
It sets, the low speed TDM business suitable for multichannel phase same rate is transmitted, including：Set on the source and egress of unified load bearing equipment.Its
In, source is used for：The low speed TDM business of continuous phase same rate is cut into the low speed TDM slice of regular length；By multi-path low speed
TDM slice is together in series by fixed byte location after processing forms the payload of grouping packet, and is packaged into ethernet frame transmission
To egress.Egress is used for：The payload of the corresponding low speed TDM slice in every road is extracted in the fixed byte position of ethernet frame,
And recover continuous low speed TDM business.
Further, shown in Figure 2, in a kind of optional embodiment, the source of the device includes signal slices
Module, slice composite module, ethernet frame package module and ethernet frame sending module.Wherein：
Signal slices module, the low speed TDM for the low speed TDM business of continuous phase same rate to be cut into regular length are cut
Piece.
It is sliced composite module, for multi-path low speed TDM slice to be together in series group by fixed byte location after processing
At the payload of grouping packet.In the present embodiment, slice composite module can add control word frame head for every road low speed TDM slice, obtain
The service management frame that multichannel is sliced as payload with low speed TDM is handled multi-path low speed TDM slice.Then, by multichannel with
Low speed TDM slice is that the service management frame of payload is together in series and forms the biggish grouping of length and wrap, and improves efficiency of transmission with this.
There are fixed length and byte location in every road with the service management frame format that low speed TDM is sliced as payload；Every road is with low speed TDM
Slice is that the service management frame of payload can all have fixed length (that is, low speed TDM slice length+control word frame in grouping packet
Head length) and fixed byte location.
Ethernet frame package module, for ethernet frame to be dressed up in the grouping encapsulating of composition.In the present embodiment, ethernet frame
Package module, which passes through, adds MPLS/VLAN mark for grouping packet, is encapsulated into ethernet frame.
Ethernet frame sending module, for packaged ethernet frame to be sent to egress.In the present embodiment, ethernet frame
Packaged ethernet frame is sent to egress by the exchange network based on ethernet frame by sending module.
In addition, the egress of the device includes slice decomposing module and signal recombination module.Wherein：
It is sliced decomposing module, is cut for extracting the corresponding low speed TDM in every road in the fixed byte position of ethernet frame
The payload of piece.In the present embodiment, slice decomposing module can be according to length (the i.e. length of low speed TDM slice of every road service management frame
Degree+control word frame head length), every road, which is extracted, at the fixed byte position in the grouping packet for being packaged into ethernet frame corresponds to
Service management frame, to obtain the payload of the corresponding low speed TDM in every road slice.
Signal recombination module, for recovering continuous low speed TDM business according to the every road low speed TDM slice extracted.
It is to be utilized respectively differential clocks mode/synchronised clock mode when signal recombination module restores low speed TDM business in the present embodiment
Recover continuous low speed TDM business.
Embodiment six
The device provided in this embodiment that the transmission of low speed TDM business is realized on unified load bearing equipment, basic structure with
Embodiment five is identical, the difference is that：Shown in Figure 3, the source of the device further includes signal decomposition module, the signal point
Solution module is used for：The received every road signal of unified load bearing equipment based on packet exchanging structure is decomposed, is obtained continuous
The low speed TDM business of phase same rate.Also, the egress of the device further includes ethernet frame receiving module, which receives
Module is used for：The grouping packet for being packaged into ethernet frame received is accordingly forwarded.Specifically, the ethernet frame of source
When the grouping encapsulating of composition is dressed up ethernet frame by package module, MPLS/VLAN mark can be added for the grouping packet of composition；Egress
Too net frame receiving module receive and be packaged into the grouping packet of ethernet frame after, can be identified according to the MPLS/VLAN of ethernet frame,
The grouping packet for being packaged into ethernet frame received is accordingly forwarded.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.
The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of method for realizing the transmission of low speed TDM business on unified load bearing equipment, the low speed suitable for multichannel phase same rate
TDM business transmission, which is characterized in that this approach includes the following steps：
The low speed TDM business of continuous phase same rate is cut into the low speed TDM slice of regular length；
Multi-path low speed TDM slice is together in series by fixed byte location after processing and forms the payload of grouping packet, and is encapsulated
Egress is sent at ethernet frame；
Egress extracts the payload of the corresponding low speed TDM slice in every road in the fixed byte position of ethernet frame, and recovers
Continuous low speed TDM business.
2. the method for low speed TDM business transmission is realized on unified load bearing equipment as described in claim 1, which is characterized in that
Multi-path low speed TDM is sliced processed concrete operations：Control word frame head is added for every road low speed TDM slice, obtains multichannel
The service management frame for payload is sliced with low speed TDM；
On this basis, when composition grouping packet, multichannel is sliced the service management frame for payload according to fixed word with low speed TDM
Section sets the payload for the composition grouping packet that is together in series.
3. the method for low speed TDM business transmission is realized on unified load bearing equipment as claimed in claim 2, which is characterized in that
It multichannel with low speed TDM is sliced the service management frame for payload is together in series according to fixed byte location and form the net of grouping packet
Lotus specifically includes following operation：
If every road is L with the length that low speed TDM is sliced as the service management frame of payload, service management frame in the road N is being grouped
Byte location in packet payload is fixed as：(N-1) * L byte is to N*L-1 byte, and N is positive integer, and 1≤N≤(Ethernet packet
Maximum packet length/L)；
Multi-channel service management frame is together in series according to the byte location of above-mentioned fixation and forms the payload of grouping packet.
4. the method for low speed TDM business transmission is realized on unified load bearing equipment as claimed in claim 2, it is characterised in that：
Control word frame head includes following field：
L bit：To alert indication bit；
R bit：For egress defect indication bit；
RSV and FRG：For reserved and segmentation bits；
LEN：For length field, at least 6 bits；
Sequence Number：For packet serial number, at least 16 bits；
Timestamp：For timestamp value, at least 32 bits.
5. the method for low speed TDM business transmission is realized on unified load bearing equipment as claimed in claim 2, which is characterized in that
The frame head of the ethernet frame includes：Source address, destination address, MPLS/VLAN mark.
6. the method for low speed TDM business transmission is realized on unified load bearing equipment as claimed in claim 5, it is characterised in that：
Egress receives be packaged into the grouping packet of ethernet frame after, can according to the MPLS/VLAN of ethernet frame identify, the envelope that will be received
The grouping packet for dressing up ethernet frame is accordingly forwarded.
7. such as the method described in any one of claims 1 to 6 for realizing the transmission of low speed TDM business on unified load bearing equipment,
It further include following operation it is characterized in that, continuous low speed TDM business is cut into before the low speed TDM slice of regular length：It will
The received every road signal of unified load bearing equipment based on packet exchanging structure is decomposed, and the low speed of continuous phase same rate is obtained
TDM business.
8. a kind of device for realizing the transmission of low speed TDM business on unified load bearing equipment, the low speed suitable for multichannel phase same rate
The transmission of TDM business, it is characterised in that：The device includes the source and egress set on unified load bearing equipment；
The source is used for：The low speed TDM business of continuous phase same rate is cut into the low speed TDM slice of regular length；It will be more
Low speed TDM slice in road is together in series by fixed byte location after processing forms the payload of grouping packet, and is packaged into Ethernet
Frame is sent to egress；
The egress is used for：The payload of the corresponding low speed TDM slice in every road is extracted in the fixed byte position of ethernet frame,
And recover continuous low speed TDM business.
9. the device of low speed TDM business transmission is realized on unified load bearing equipment as claimed in claim 8, which is characterized in that
The source of the device includes：
Signal slices module, the low speed TDM for the low speed TDM business of continuous phase same rate to be cut into regular length are sliced；
It is sliced composite module, for multi-path low speed TDM slice to be together in series a group ingredient by fixed byte location after processing
The payload of group packet；
Ethernet frame package module, for ethernet frame to be dressed up in the grouping encapsulating of composition；
Ethernet frame sending module, for packaged ethernet frame to be sent to egress；
The egress of the device includes：
It is sliced decomposing module, for extracting the corresponding low speed TDM slice in every road in the fixed byte position of ethernet frame
Payload；
Signal recombination module, for recovering continuous low speed TDM business according to the every road low speed TDM slice extracted.
10. realizing the device of low speed TDM business transmission on unified load bearing equipment as claimed in claim 8 or 9, feature exists
In：The source further includes signal decomposition module, which is used for：By the unified carrying based on packet exchanging structure
The received every road signal of equipment is decomposed, and the low speed TDM business of continuous phase same rate is obtained；The egress further includes ether
Net frame receiving module, the ethernet frame receiving module are used for：The grouping packet for being packaged into ethernet frame received is carried out corresponding
Forwarding.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949743A (en) * | 2021-11-22 | 2022-01-18 | 烽火通信科技股份有限公司 | ODU payload bearing method and system |
| CN115297073A (en) * | 2022-07-22 | 2022-11-04 | 武汉烽火技术服务有限公司 | E1 service transmission method and device |
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