CN107154871A - VOIP business master-slave conversion system and method based on distributed DSP - Google Patents
VOIP business master-slave conversion system and method based on distributed DSP Download PDFInfo
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- CN107154871A CN107154871A CN201710295411.1A CN201710295411A CN107154871A CN 107154871 A CN107154871 A CN 107154871A CN 201710295411 A CN201710295411 A CN 201710295411A CN 107154871 A CN107154871 A CN 107154871A
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- media stream
- master
- mac
- standby
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0081—Network operation, administration, maintenance, or provisioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0081—Network operation, administration, maintenance, or provisioning
- H04M7/0084—Network monitoring; Error detection; Error recovery; Network testing
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of VOIP business master-slave conversion system and method based on distributed DSP, it is related to optic communication voice field.The system includes 2 pieces of main control units and some pieces of business single-decks, every piece of main control unit includes VOIP protocol modules, host-standby communication module and data forwarding hardware, VOIP protocol modules communicate with data forwarding hardware, host-standby communication module respectively, are communicated between the host-standby communication module of 2 pieces of main control units；It is provided with dsp chip in every piece of business single-deck, the data forwarding hardware communications of the dsp chip of every piece of business single-deck with main control unit.When masterslave switchover occurs for the present invention, VOIP service medias stream can be immediately switched on standby main control unit realize forwarding, and usual Media Stream packing is spaced in 20 milliseconds, standby master control is switched to during masterslave switchover and is completed by hardware, take in Millisecond, it is possible to achieve Media Stream not packet loss completely in reversed process.
Description
Technical field
The present invention relates to optic communication voice field, and in particular to a kind of VOIP business masterslave switchovers based on distributed DSP
System and method.
Background technology
VOIP (Voice are realized in MSAN (Multi-Service Access Network, multi-service access node) equipment
Over Internet Protocol, the networking telephone) business masterslave switchover when, it is necessary to which main control unit and business single-deck are joined simultaneously
With main control unit is the core data forward node of whole equipment, and all data pass through main control unit and complete forwarding.To avoid list
Point failure using 1+1 backup mode, it is necessary to increase reliability：Break down when the main control unit (i.e. master) that is working or
When person's other reasonses cause to restart, standby main control unit (i.e. standby disk) adapter business immediately substitutes original master and completes data and turns
Hair, it is ensured that business is not disrupted in equipment.
Current VOIP business typically realizes masterslave switchover by the VOIP protocol softwares, still, in reality in reversed process,
The Media Stream of VOIP business is difficult to all send in switching time, and then the long or short service disconnection packet loss phenomenon of appearance,
Great probability is had for the sensitive VOIP business of packet loss (such as fax, MODEN business) to occur switching unsuccessfully.
The content of the invention
For defect present in prior art, present invention solves the technical problem that being：How to allow during masterslave switchover
Media Stream not packet loss completely.
To achieve the above objectives, the VOIP business master-slave conversion systems based on distributed DSP that the present invention is provided, including 2
Block main control unit and some pieces of business single-decks, every piece of main control unit include VOIP protocol modules, host-standby communication module and data forwarding
Hardware, VOIP protocol modules communicate with data forwarding hardware, host-standby communication module respectively, the host-standby communication module of 2 pieces of main control units
Between communicate；It is provided with dsp chip in every piece of business single-deck, the data of the dsp chip of every piece of business single-deck with main control unit
Forwarding hardware communicates；
Host-standby communication module is used for：When detecting the signal of communication that another piece of host-standby communication module is sent, by affiliated master control
Disk is defined as standby disk；Communication port is set up with another piece of host-standby communication module；Detect the communication shape of another piece of host-standby communication module
State, when the communications status for detecting master is abnormal, carries out masterslave switchover；
VOIP protocol modules are used for：According to the media parameter of Media Stream, set on the data forwarding hardware of affiliated main control unit
Forwarding media stream rule is put, forwarding media stream rule is sent to the data forwarding hardware of another piece of main control unit；On dsp chip
Forwarding media stream parameter is set；
Data forwarding hardware is used for：When affiliated main control unit is master, it is forwarding shape to set the communications status of DPS chips
State, when affiliated main control unit is standby disk, the communications status for setting DPS chips is lockup state；Receive the media of dsp chip transmission
During stream, the forwarding rule set according to VOIP protocol modules, forwarding after being changed to the source MAC and purpose MAC of Media Stream；Receive
To remote equipment send Media Stream when, according to VOIP protocol modules set forwarding rule, to the source MAC and purpose of Media Stream
After MAC is changed, dsp chip is forwarded to；
Dsp chip is used for：When receiving Media Stream, according to forwarding media stream parameter, the purpose MAC of Media Stream is set to void
Intend MAC, source MAC is set to after the privately owned MAC of dsp chip, send to the data forwarding hardware of affiliated main control unit.
Provided by the present invention for the VOIP business main and standby rearranging methods based on distributed DSP of said system, including with
Lower step：
S1：After 2 pieces of main control unit initialization, sent to the host-standby communication module of other side in signal of communication, 2 pieces of main control units, first
The main control unit for detecting signal of communication is standby disk, after to detect the main control unit of signal of communication be master, master and standby disk it is active and standby logical
Letter module sets up host-standby communication passage, goes to S2；
S2：The communications status of the data forwarding hardware of master and dsp chip is set to forwarding state, by the data of standby disk
The communications status of forwarding hardware and dsp chip is set to lockup state, goes to S3；
S3：The VOIP protocol modules of master set media to circulate according to the media parameter of Media Stream on data forwarding hardware
Hair rule；VOIP protocol modules by host-standby communication passage, send forwarding media stream rule to the data forwarding hardware of standby disk,
Go to S4；
S4：The VOIP protocol modules of master set forwarding media stream parameter on dsp chip, go to S5；
S5：Dsp chip is received after Media Stream, and according to forwarding media stream parameter, the data of media stream to master are turned
Harden part, and Media Stream purpose MAC is the Virtual MAC of master, and source MAC is the privately owned MAC of dsp chip, goes to S6；
S6：The data forwarding hardware of master, according to the forwarding media stream rule set in S3, to the source MAC of Media Stream and
Purpose MAC is forwarded after being changed, and goes to S7；
S7：When the data forwarding hardware of master receives the Media Stream of remote equipment transmission, according to the Media Stream set in S3
Forwarding rule, after being changed to the source MAC and purpose MAC of Media Stream, is forwarded to dsp chip, goes to S8；
S8：During S3 to S7 is performed, the host-standby communication module of standby disk detects the communications status of master, when detecting
When the communications status of master is abnormal, masterslave switchover is carried out, S2 is gone to.Compared with prior art, the advantage of the invention is that：
The present invention uses distribution DSP, i.e., dsp chip is provided with every piece of business single-deck, and the present invention occurs active and standby
When switching, VOIP service medias stream can be immediately switched on standby main control unit realize forwarding, and usual Media Stream packing is spaced in 20
Millisecond, is switched to standby master control and is completed by hardware, taken in Millisecond, it is possible to achieve Media Stream in reversed process during masterslave switchover
Not packet loss completely.
Therefore, the present invention VOIP business (such as fax, MODEM business) sensitive to packet loss, masterslave switchover completely will not
Have an impact.It can realize that unstable state VOIP business is switched in signaling processing plane, and then the perfect VOIP industry supported under various states
The masterslave switchover of business.
At the same time, other business datum planes that method of the invention is applied equally to outside VOIP business are active and standby
Change.
Brief description of the drawings
Fig. 1 is the operational data flow direction of the VOIP business main and standby rearranging methods based on distributed DSP in the embodiment of the present invention
Figure.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
It is shown in Figure 1, the VOIP business master-slave conversion systems based on distributed DSP in the embodiment of the present invention, including 2
Block main control unit and some pieces of business single-decks, every piece of main control unit include VOIP protocol modules, host-standby communication module and data forwarding
Hardware (in the present embodiment data forwarding hardware be exchange chip), VOIP protocol modules respectively with data forwarding hardware, active and standby logical
Believe and communicated between module communication, the host-standby communication module of 2 pieces of main control units.DSP (Digital are provided with every piece of business single-deck
Signal Processing, Digital Signal Processing) chip, the data forwarding of the dsp chip of every piece of business single-deck with main control unit
Hardware communications.
Host-standby communication module is used for：
(1) signal of communication that another piece of host-standby communication module is sent is detected, affiliated main control unit is defined as standby disk, will be another
One piece of main control unit is defined as master；
(2) communication port is set up with another piece of host-standby communication module；
(3) communications status of another piece of host-standby communication module is detected, when the communications status for detecting master is abnormal, is carried out
Masterslave switchover (will be changed to master, master is changed to standby disk) for disk.
VOIP protocol modules are used for：
(1) according to the media parameter (such as local IP and far-end IP) of Media Stream, in the data forwarding of affiliated main control unit
Forwarding media stream rule is set on hardware, forwarding media stream rule is sent to the data forwarding hardware of another piece of main control unit；
(2) forwarding media stream parameter is set on dsp chip.
Data forwarding hardware is used for：
(1) when the main control unit belonging to is master, the communications status for setting DPS chips is forwarding state, affiliated main control unit
During for standby disk, the communications status for setting DPS chips is lockup state；
(2) when receiving the Media Stream of dsp chip transmission, the forwarding rule set according to VOIP protocol modules, to Media Stream
Source MAC and purpose MAC changed after (source MAC is changed to the Virtual MAC of master, and purpose MAC is changed to remote equipment
MAC, remote equipment is the equipment for needing to forward) forwarding；
(3) when receiving the Media Stream of remote equipment transmission, the forwarding rule set according to VOIP protocol modules, to Media Stream
Source MAC and purpose MAC changed after (source MAC is changed to the Virtual MAC of master, and purpose MAC is changed to master dsp chip
Privately owned MAC), be forwarded to dsp chip.
Dsp chip is used for：When receiving Media Stream, according to forwarding media stream parameter, the purpose MAC of Media Stream is set to void
Intend MAC, source MAC is set to after the privately owned MAC of dsp chip, send to the data forwarding hardware of affiliated main control unit.
Shown in Figure 1, the VOIP business based on distributed DSP for said system in the embodiment of the present invention is active and standby
Reverse method, comprises the following steps：
S1：After 2 pieces of main control unit initialization, sent to the host-standby communication module of other side in signal of communication, 2 pieces of main control units, first
The main control unit for detecting signal of communication is standby disk, after to detect the main control unit of signal of communication be master, master and standby disk it is active and standby logical
Letter module sets up host-standby communication passage, goes to S2.
S2：The communications status of the data forwarding hardware of master and dsp chip is set to forwarding state (Forward), will
The data forwarding hardware of standby disk and the communications status of dsp chip are set to lockup state (Block), go to S3.
S3：The VOIP protocol modules of master according to Media Stream media parameter (such as local IP and far-end IP), in data
Set forwarding media stream regular (C1 in Fig. 1) on forwarding hardware；VOIP protocol modules are by forwarding media stream rule by active and standby
Communication port, sends to the data forwarding hardware (C2 in Fig. 1) of standby disk, goes to S4.
S4：The VOIP protocol modules of master set forwarding media stream parameter (C3 in corresponding diagram 1) on dsp chip, turn
To S5.
S5：Dsp chip is received after Media Stream, and according to forwarding media stream parameter, the data of media stream to master are turned
Harden part, and Media Stream purpose MAC (physical address) is the Virtual MAC of master, and source MAC is the privately owned MAC (corresponding diagrams 1 of dsp chip
In D1), go to S6.
S6：The data forwarding hardware of master, according to the forwarding media stream rule set in S3, to the source MAC of Media Stream and
(source MAC is changed to the Virtual MAC of master, and purpose MAC is changed to the MAC of remote equipment) forwarding is (right after purpose MAC is changed
Answer the D2 in Fig. 1), go to S7.
S7：When the data forwarding hardware of master receives the Media Stream of remote equipment transmission (D2 in corresponding diagram 1), according to S3
The forwarding media stream rule of middle setting, (source MAC is changed to the void of master after being changed to the source MAC and purpose MAC of Media Stream
Intend MAC, purpose MAC is changed to the privately owned MAC of master dsp chip), dsp chip (D1 in corresponding diagram 1) is forwarded to, S8 is gone to.
S8：During S3 to S7 is performed, the host-standby communication module of standby disk detects the communications status of master, when detecting
When the communications status of master is abnormal, masterslave switchover (master will be changed to for disk, master is changed to standby disk) is carried out, S2 is gone to.
Further, the present invention is not limited to the above-described embodiments, for those skilled in the art,
Without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as the present invention
Protection domain within.The content not being described in detail in this specification belongs to existing skill known to professional and technical personnel in the field
Art.
Claims (10)
1. a kind of VOIP business master-slave conversion systems based on distributed DSP, including 2 pieces of main control units and some pieces of business single-decks,
Every piece of main control unit include VOIP protocol modules, host-standby communication module and data forwarding hardware, VOIP protocol modules respectively with number
Communicate, communicated between the host-standby communication module of 2 pieces of main control units according to forwarding hardware, host-standby communication module；It is characterized in that：Every piece of industry
Dsp chip is provided with business single-deck, the data forwarding hardware communications of the dsp chip of every piece of business single-deck with main control unit；
Host-standby communication module is used for：It is when detecting the signal of communication that another piece of host-standby communication module is sent, affiliated main control unit is true
It is set to standby disk；Communication port is set up with another piece of host-standby communication module；The communications status of another piece of host-standby communication module is detected, when
When detecting the communications status exception of master, masterslave switchover is carried out；
VOIP protocol modules are used for：According to the media parameter of Media Stream, matchmaker is set on the data forwarding hardware of affiliated main control unit
Body circulation hair rule, forwarding media stream rule is sent to the data forwarding hardware of another piece of main control unit；Set on dsp chip
Forwarding media stream parameter；
Data forwarding hardware is used for：When affiliated main control unit is master, the communications status for setting DPS chips is forwarding state, institute
When the main control unit of category is standby disk, the communications status for setting DPS chips is lockup state；When receiving the Media Stream of dsp chip transmission,
The forwarding rule set according to VOIP protocol modules, forwarding after being changed to the source MAC and purpose MAC of Media Stream；Receive remote
During the Media Stream that end equipment is sent, the forwarding rule set according to VOIP protocol modules, to the source MAC and purpose MAC of Media Stream
After being changed, dsp chip is forwarded to；
Dsp chip is used for：When receiving Media Stream, according to forwarding media stream parameter, the purpose MAC of Media Stream is set to virtually
MAC, source MAC is set to after the privately owned MAC of dsp chip, is sent to the data forwarding hardware of affiliated main control unit.
2. the VOIP business master-slave conversion systems as claimed in claim 1 based on distributed DSP, it is characterised in that：The number
When receiving the Media Stream of dsp chip transmission according to forwarding hardware, it is to the source MAC and purpose MAC of the Media Stream flow changed：
Source MAC is changed to the Virtual MAC of master, purpose MAC is changed to the MAC of remote equipment.
3. the VOIP business master-slave conversion systems as claimed in claim 1 based on distributed DSP, it is characterised in that：The number
When receiving the Media Stream of remote equipment transmission according to forwarding hardware, the flow changed to the source MAC and purpose MAC of Media Stream
For：Source MAC is changed to the Virtual MAC of master, purpose MAC is changed to the privately owned MAC of master dsp chip.
4. the VOIP business master-slave conversion systems based on distributed DSP as described in any one of claims 1 to 3, its feature exists
In：Media parameter in the VOIP protocol modules includes the local IP and far-end IP of Media Stream.
5. the VOIP business master-slave conversion systems based on distributed DSP as described in any one of claims 1 to 3, its feature exists
In：The data forwarding hardware is exchange chip.
6. a kind of VOIP business masterslave switchover side based on distributed DSP for any one of claim 1 to 5 system
Method, it is characterised in that this method comprises the following steps：
S1：After 2 pieces of main control unit initialization, send in signal of communication, 2 pieces of main control units, first detect to the host-standby communication module of other side
The main control unit of signal of communication is standby disk, after detect signal of communication main control unit be master, master and standby disk host-standby communication mould
Block sets up host-standby communication passage, goes to S2；
S2：The communications status of the data forwarding hardware of master and dsp chip is set to forwarding state, by the data forwarding of standby disk
The communications status of hardware and dsp chip is set to lockup state, goes to S3；
S3：The VOIP protocol modules of master set forwarding media stream to advise according to the media parameter of Media Stream on data forwarding hardware
Then；Forwarding media stream rule by host-standby communication passage, is sent to the data forwarding hardware of standby disk, gone to by VOIP protocol modules
S4；
S4：The VOIP protocol modules of master set forwarding media stream parameter on dsp chip, go to S5；
S5：Dsp chip is received after Media Stream, according to forwarding media stream parameter, the data forwarding of media stream to master is hard
Part, Media Stream purpose MAC is the Virtual MAC of master, and source MAC is the privately owned MAC of dsp chip, goes to S6；
S6：The data forwarding hardware of master, according to the forwarding media stream rule set in S3, to the source MAC and purpose of Media Stream
MAC is forwarded after being changed, and goes to S7；
S7：When the data forwarding hardware of master receives the Media Stream of remote equipment transmission, according to the forwarding media stream set in S3
Rule, after being changed to the source MAC and purpose MAC of Media Stream, is forwarded to dsp chip, goes to S8；
S8：During S3 to S7 is performed, the host-standby communication module of standby disk detects the communications status of master, when detecting master
Communications status it is abnormal when, carry out masterslave switchover, go to S2.
7. the VOIP business main and standby rearranging methods as claimed in claim 6 based on distributed DSP, it is characterised in that：Institute in S6
State and be to the source MAC and purpose MAC of the Media Stream flow changed：Source MAC is changed to the Virtual MAC of master, by purpose
MAC is changed to the MAC of remote equipment.
8. the VOIP business main and standby rearranging methods as claimed in claim 6 based on distributed DSP, it is characterised in that：Institute in S7
State and be to the source MAC and purpose MAC of the Media Stream flow changed：Source MAC is changed to the Virtual MAC of master, purpose MAC
It is changed to the privately owned MAC of master dsp chip.
9. the VOIP business main and standby rearranging methods based on distributed DSP as described in any one of claim 6 to 8, its feature exists
In：Masterslave switchover refers to described in S8：Master is changed to standby disk, standby disk is changed to master.
10. the VOIP business main and standby rearranging methods based on distributed DSP as described in any one of claim 6 to 8, its feature exists
In：Media parameter described in S3 includes local IP and far-end IP.
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| CN201710295411.1A CN107154871B (en) | 2017-04-28 | 2017-04-28 | VOIP business master-slave conversion system and method based on distributed DSP |
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| CN201710295411.1A CN107154871B (en) | 2017-04-28 | 2017-04-28 | VOIP business master-slave conversion system and method based on distributed DSP |
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| CN107154871B CN107154871B (en) | 2019-09-17 |
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| CN109768900A (en) * | 2019-01-04 | 2019-05-17 | 烽火通信科技股份有限公司 | Network element second grade processing method for performance and system |
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| CN107154871B (en) | 2019-09-17 |
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