CN107154871B - 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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- CN107154871B CN107154871B CN201710295411.1A CN201710295411A CN107154871B CN 107154871 B CN107154871 B CN 107154871B CN 201710295411 A CN201710295411 A CN 201710295411A CN 107154871 B CN107154871 B CN 107154871B
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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
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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
- 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 systems and method based on distributed DSP, are related to optic communication voice field.The system includes 2 pieces of main control units and several pieces of business single-decks, every piece of main control unit includes VOIP protocol module, host-standby communication module and data forwarding hardware, VOIP protocol module is communicated with data forwarding hardware, host-standby communication module respectively, is communicated between the host-standby communication module of 2 pieces of main control units；Be provided with dsp chip in every piece of business single-deck, the dsp chip of every piece of business single-deck with the data forwarding hardware communications of main control unit.When masterslave switchover occurs for the present invention, VOIP service media stream can be immediately switched to realize forwarding on spare main control unit, and the packing of usual Media Stream is spaced in 20 milliseconds, and when masterslave switchover is switched to spare master control and is completed by hardware, Media Stream not packet loss completely may be implemented in reversed process in Millisecond in time-consuming.
Description
Technical field
The present invention relates to optic communication voice fields, and in particular to a kind of VOIP business masterslave switchover based on distributed DSP
System and method.
Background technique
VOIP (Voice is realized in MSAN (Multi-Service Access Network, multi-service access node) equipment
Over Internet Protocol, the networking telephone) business masterslave switchover when, need main control unit and business single-deck while joining
It is the core data forward node of whole equipment with, main control unit, all data pass through main control unit and complete forwarding.To avoid list
Point failure needs to increase reliability using 1+1 backup mode: when the main control unit (i.e. master) to work breaks down or
When person's other reasons cause to restart, spare main control unit (i.e. for disk) adapter tube business immediately substitutes original master and completes data and turns
Hair guarantees that business is not disrupted in equipment.
VOIP business generally passes through VOIP protocol software realization masterslave switchover at present, still, in reality in reversed process,
The Media Stream of VOIP business is difficult to all send in switching time, and then long or short service disconnection packet loss phenomenon occurs,
Great probability is had for the VOIP business (such as fax, MODEN business etc.) of packet loss sensitivity to occur switching unsuccessfully.
Summary of the invention
In view of the deficiencies in the prior art, present invention solves the technical problem that are as follows: how to allow during masterslave switchover
Media Stream not packet loss completely.
To achieve the above objectives, the VOIP business master-slave conversion system provided by the invention based on distributed DSP, including 2
Block main control unit and several pieces of business single-decks, every piece of main control unit include VOIP protocol module, host-standby communication module and data forwarding
Hardware, VOIP protocol module are communicated with data forwarding hardware, host-standby communication module respectively, the host-standby communication module of 2 pieces of main control units
Between communicate；Be provided with dsp chip in every piece of business single-deck, the dsp chip of every piece of business single-deck with the data of main control unit
Forwarding hardware communication；
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 determined as standby disk；Communication channel is established with another piece of host-standby communication module；Detect the communication shape of another piece of host-standby communication module
State carries out masterslave switchover when detecting the communications status exception of master；
VOIP protocol module is used for: according to the media parameter of Media Stream, being set on the data forwarding hardware of affiliated main control unit
Forwarding media stream rule is set, 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, the communications status of setting DPS chip is forwarding shape
State, when affiliated main control unit is standby disk, the communications status of setting DPS chip is lockup state；Receive the media of dsp chip transmission
When stream, according to the forward rule that VOIP protocol module is arranged, forwarded after being changed to the source MAC and purpose MAC of Media Stream；It receives
To remote equipment send Media Stream when, according to VOIP protocol module be arranged forward rule, to the source MAC and purpose of Media Stream
After MAC is changed, it is forwarded to dsp chip；
Dsp chip is used for: when receiving Media Stream, according to forwarding media stream parameter, setting empty for the purpose MAC of Media Stream
Quasi- MAC after source MAC is set as the privately owned MAC of dsp chip, is sent to the data forwarding hardware of affiliated main control unit.
Provided by the present invention for the VOIP business main and standby rearranging method based on distributed DSP of above system, including with
Lower step:
After the initialization of S1:2 block main control unit, signal of communication is sent to the host-standby communication module of other side, in 2 pieces of main control units, first
The main control unit for detecting signal of communication is standby disk, after detect that the main control unit of signal of communication is master, master and standby disk it is active and standby logical
Letter module establishes host-standby communication channel, goes to S2；
S2: setting forwarding state for the communications status of the data forwarding hardware of master and dsp chip, by the data of standby disk
The communications status of forwarding hardware and dsp chip is set as lockup state, goes to S3；
S3: the VOIP protocol module of master is arranged media on data forwarding hardware and circulates according to the media parameter of Media Stream
Hair rule；Forwarding media stream rule by host-standby communication channel, is sent to the data forwarding hardware of standby disk by VOIP protocol module,
Go to S4；
S4: forwarding media stream parameter is arranged in the VOIP protocol module of master on dsp chip, goes to S5；
After S5:DSP chip receives Media Stream, 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 being arranged in S3, to the source MAC of Media Stream and
Purpose MAC is forwarded after changing, 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 being arranged in S3
Forward rule is forwarded to dsp chip, goes to S8 after changing to the source MAC and purpose MAC of Media Stream；
S8: during executing S3 to S7, the communications status of the host-standby communication module detection master of standby disk, when detecting
When the communications status exception of master, masterslave switchover is carried out, S2 is gone to.Compared with the prior art, the advantages of the present invention are as follows:
The present invention uses distribution DSP, i.e., dsp chip is provided in every piece of business single-deck, and the present invention occurs active and standby
When switching, VOIP service media stream can be immediately switched to realize forwarding on spare main control unit, and usual Media Stream packing is spaced in 20
Millisecond, when masterslave switchover, are switched to spare master control and are completed by hardware, and Media Stream in reversed process may be implemented in Millisecond in time-consuming
Not packet loss completely.
Therefore, the present invention VOIP business sensitive to packet loss (for example faxing, MODEM business), masterslave switchover completely will not
Have an impact.It is able to achieve unstable state VOIP business in signaling processing plane to switch, and then the perfect VOIP industry supported under various states
The masterslave switchover of business.
At the same time, it is active and standby to be applied equally to other business datum planes except VOIP business to method of the invention
It changes.
Detailed description of the invention
Fig. 1 is the operational data flow direction of the VOIP business main and standby rearranging method based on distributed DSP in the embodiment of the present invention
Figure.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
It is shown in Figure 1, the VOIP business master-slave conversion system based on distributed DSP in the embodiment of the present invention, including 2
Block main control unit and several pieces of business single-decks, every piece of main control unit include VOIP protocol module, host-standby communication module and data forwarding
Hardware (in the present embodiment data forwarding hardware be exchange chip), VOIP protocol module respectively with data forwarding hardware, active and standby logical
Believe module communication, is communicated between the host-standby communication module of 2 pieces of main control units.DSP (Digital is provided in every piece of business single-deck
Signal Processing, Digital Signal Processing) chip, the dsp chip of every piece of business single-deck with the data forwarding of main control unit
Hardware communications.
Host-standby communication module is used for:
(1) it detects the signal of communication that another piece of host-standby communication module is sent, affiliated main control unit is determined as standby disk, it will be another
One piece of main control unit is determined as master；
(2) communication channel is established with another piece of host-standby communication module；
(3) communications status for detecting another piece of host-standby communication module is carried out when detecting the communications status exception of master
Standby disk (is changed to master, master is changed to standby disk) by masterslave switchover.
VOIP protocol module is used for:
(1) according to the media parameter of Media Stream (such as local IP and far-end IP etc.), 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 of setting DPS chip is forwarding state, affiliated main control unit
When for for disk, the communications status of setting DPS chip is lockup state；
(2) when receiving the Media Stream of dsp chip transmission, according to the forward rule that VOIP protocol module is arranged, to Media Stream
Source MAC and purpose MAC change after (source MAC is changed to the Virtual MAC of master, and purpose MAC is changed to remote equipment
MAC, the equipment that remote equipment as needs to forward) forwarding；
(3) when receiving the Media Stream of remote equipment transmission, according to the forward rule that VOIP protocol module is arranged, to Media Stream
Source MAC and purpose MAC change 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, setting empty for the purpose MAC of Media Stream
Quasi- MAC after source MAC is set as the privately owned MAC of dsp chip, is sent to the data forwarding hardware of affiliated main control unit.
Shown in Figure 1, the VOIP business based on distributed DSP for above system in the embodiment of the present invention is active and standby
Reverse method, comprising the following steps:
After the initialization of S1:2 block main control unit, signal of communication is sent to the host-standby communication module of other side, in 2 pieces of main control units, first
The main control unit for detecting signal of communication is standby disk, after detect that the main control unit of signal of communication is master, master and standby disk it is active and standby logical
Letter module establishes host-standby communication channel, goes to S2.
S2: setting the communications status of the data forwarding hardware of master and dsp chip to forwarding state (Forward), will
The data forwarding hardware of standby disk and the communications status of dsp chip are set as lockup state (Block), go to S3.
S3: the VOIP protocol module of master according to Media Stream media parameter (such as local IP and far-end IP etc.), in data
It is regular (C1 in Fig. 1) that forwarding media stream is set on forwarding hardware；VOIP protocol module passes through forwarding media stream rule active and standby
Communication channel is sent to the data forwarding hardware (C2 in Fig. 1) of standby disk, goes to S4.
S4: forwarding media stream parameter (C3 in corresponding diagram 1) is arranged in the VOIP protocol module of master on dsp chip, turns
To S5.
After S5:DSP chip receives Media Stream, 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 diagram 1 of dsp chip
In D1), go to S6.
S6: the data forwarding hardware of master, according to the forwarding media stream rule being arranged 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 changing to the source MAC and purpose MAC of Media Stream
Quasi- MAC, purpose MAC are changed to the privately owned MAC of master dsp chip), it is forwarded to dsp chip (D1 in corresponding diagram 1), goes to S8.
S8: during executing S3 to S7, the communications status of the host-standby communication module detection master of standby disk, when detecting
When the communications status exception of master, masterslave switchover (standby disk being changed to master, 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, several improvements and modifications can also be made, these improvements and modifications are also considered as the present invention
Protection scope within.The content being not described in detail in this specification belongs to existing skill well known to professional and technical personnel in the field
Art.
Claims (10)
1. a kind of VOIP business master-slave conversion system based on distributed DSP, including 2 pieces of main control units and several pieces of business single-decks,
Every piece of main control unit includes VOIP protocol module, host-standby communication module and data forwarding hardware, VOIP protocol module respectively with number
It communicates according to forwarding hardware, host-standby communication module, is communicated between the host-standby communication module of 2 pieces of main control units；It is characterized by: every piece of industry
Be provided with dsp chip in business single-deck, the dsp chip of every piece of business single-deck with the data forwarding hardware communications of main control unit；
Host-standby communication module is used for: 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 channel is established with another piece of host-standby communication module；The communications status for detecting another piece of host-standby communication module, when
When detecting the communications status exception of master, masterslave switchover is carried out；
VOIP protocol module is used for: according to the media parameter of Media Stream, matchmaker is arranged on the data forwarding hardware of affiliated main control unit
Forwarding media stream rule is sent to the data forwarding hardware of another piece of main control unit by body stream forward rule；It is arranged on dsp chip
Forwarding media stream parameter；
Data forwarding hardware is used for: when affiliated main control unit is master, the communications status that dsp chip is arranged is forwarding state, institute
When the main control unit of category is standby disk, the communications status that dsp chip is arranged is lockup state；When receiving the Media Stream of dsp chip transmission,
According to the forward rule that VOIP protocol module is arranged, forwarded after being changed to the source MAC and purpose MAC of Media Stream；It receives remote
When the Media Stream that end equipment is sent, according to the forward rule that VOIP protocol module is arranged, to the source MAC and purpose MAC of Media Stream
After changing, it is forwarded to dsp chip；
Dsp chip is used for: when receiving Media Stream, according to forwarding media stream parameter, setting virtual for the purpose MAC of Media Stream
MAC after source MAC is set as 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 system based on distributed DSP as described in claim 1, it is characterised in that: the number
When receiving the Media Stream of dsp chip transmission according to forwarding hardware, process that the source MAC and purpose MAC of Media Stream are changed are as follows:
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 system based on distributed DSP as described in claim 1, it is characterised in that: the number
When receiving the Media Stream of remote equipment transmission according to forwarding hardware, process that the source MAC and purpose MAC of Media Stream are changed
Are as follows: 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 system as described in any one of claims 1 to 3 based on distributed DSP, feature exist
In: the media parameter in the VOIP protocol module includes the local IP and far-end IP of Media Stream.
5. the VOIP business master-slave conversion system as described in any one of claims 1 to 3 based on distributed DSP, feature exist
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, which is characterized in that method includes the following steps:
After the initialization of S1:2 block main control unit, signal of communication is sent to the host-standby communication module of other side, in 2 pieces of main control units, is first detected
The main control unit of signal of communication is standby disk, after detect that the main control unit of signal of communication is master, the host-standby communication mould of master and standby disk
Block establishes host-standby communication channel, goes to S2；
S2: setting forwarding state for the communications status of the data forwarding hardware of master and dsp chip, by the data forwarding of standby disk
The communications status of hardware and dsp chip is set as lockup state, goes to S3；
S3: the VOIP protocol module of master is arranged forwarding media stream on data forwarding hardware and advises according to the media parameter of Media Stream
Then；Forwarding media stream rule by host-standby communication channel, is sent to the data forwarding hardware of standby disk, gone to by VOIP protocol module
S4；
S4: forwarding media stream parameter is arranged in the VOIP protocol module of master on dsp chip, goes to S5；
It is according to forwarding media stream parameter, the data forwarding of media stream to master is hard after S5:DSP chip receives Media Stream
Part, Media Stream purpose MAC are the Virtual MAC of master, and source MAC is the privately owned MAC of dsp chip, go to S6；
S6: the data forwarding hardware of master, according to the forwarding media stream rule being arranged in S3, to the source MAC and purpose of Media Stream
MAC is forwarded after changing, 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 being arranged in S3
Rule is forwarded to dsp chip, goes to S8 after changing to the source MAC and purpose MAC of Media Stream；
S8: during executing S3 to S7, the communications status of the host-standby communication module detection master of standby disk, when detecting master
Communications status exception when, carry out masterslave switchover, go to S2.
7. the VOIP business main and standby rearranging method based on distributed DSP as claimed in claim 6, it is characterised in that: institute in S6
State the process changed to the source MAC and purpose MAC of Media Stream are as follows: 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 method based on distributed DSP as claimed in claim 6, it is characterised in that: institute in S7
State the process changed to the source MAC and purpose MAC of Media Stream are as follows: 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. such as the described in any item VOIP business main and standby rearranging methods based on distributed DSP of claim 6 to 8, feature exists
In: masterslave switchover described in S8 refers to: master being changed to standby disk, standby disk is changed to master.
10. such as the described in any item VOIP business main and standby rearranging methods based on distributed DSP of claim 6 to 8, feature exists
In: media parameter described in S3 includes local IP and far-end IP.
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| CN109245985B (en) * | 2018-08-24 | 2020-12-29 | 烽火通信科技股份有限公司 | Communication method and system between single disks in equipment |
| CN109768900B (en) * | 2019-01-04 | 2020-09-15 | 烽火通信科技股份有限公司 | Method and system for processing second-level performance of network element |
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| CN102195845A (en) * | 2010-03-03 | 2011-09-21 | 杭州华三通信技术有限公司 | Method, device and equipment for realizing active-standby switching of main control board |
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