CN105099543B - A kind of network fast protection method of SDH equipment - Google Patents
A kind of network fast protection method of SDH equipment Download PDFInfo
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- CN105099543B CN105099543B CN201510399243.1A CN201510399243A CN105099543B CN 105099543 B CN105099543 B CN 105099543B CN 201510399243 A CN201510399243 A CN 201510399243A CN 105099543 B CN105099543 B CN 105099543B
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Abstract
The invention belongs to guard method, and in particular to a kind of network fast protection method of SDH equipment.It includes：Judge trouble point, judge network failure point position, network failure point possibly be present at fiber link, ethernet link or backbone network equipment, then according to the different network reconfiguration mode of the different choice of position of failure point.The remarkable result of the present invention is：By the setting of the present invention, can be quickly switched into when main transmission link breaks down on the optimal transmission link of laser propagation effect, the time cost of system transmission is saved, transmission link is optimized, on the premise of network communication reliability is ensured, farthest ensures system laser propagation effect.
Description
Technical field
The invention belongs to guard method, and in particular to a kind of network fast protection method of SDH equipment.
Background technology
SDH (Synchronous Digital Hierarchy, SDH) is a kind of by multiple connection, line transmission
And function of exchange combines together and has the integrated information transmission network of standard interface, is message area in terms of transmission technology
It is most widely used one of technology.The message structure grade that SDH is used is referred to as Synchronous Transport Module level-N STM-N (Synchronous
Transport Module, N=1,4,16,64), most basic module is STM-1 (i.e. 155M), four STM-1 synchronous multiplexings
STM-4 (i.e. 622M) is formed, 16 STM-1 or four STM-4 synchronous multiplexings form STM-16 (i.e. 2.5G).
SDH has the characteristics that：
A) two big digital hierarchy of 1.5Mbit/s and 2Mbit/s has been unified more than STM-1 grades, has been truly realized first
Worldwide standard in Digital Transmission system；
B) synchronous multiplexing mode and flexible multiplex mapping structure are employed, need to only utilize software to make high speed signal one
Secondary direct point is inserted out low speed tributary signal；
C) abundant overhead-bits are devised in SDH frame structures, enhances the fault-detecting ability of network；
D) separated needs will be transmitted and be multiplexed by reducing, and simplify hardware, and it is crowded to alleviate wiring；
E) there is the transparency of information payload, network can transmit various net loads and its mixture；
F) there is timing transparent, SDH is to be connected to high precision reference clock as synchronous net work, network element, can be with
Reduce adjustment frequency and improve network performance；
G) network availability and error performance are improved.
SDH network can be completely compatible with existing network, meets the SDH optical transmission devices of military standard and there is environment to adapt to energy
Power is strong, reliability is high, small volume, transmission capacity is big, business interface is abundant, long transmission distance, security performance are good, electromagnetism interference
The features such as.
In general, the transmission of data only needs primary link in network.As shown in Figure 1, PC1 to PC2 link
SDHA equipment and SDHC equipment are only needed as backbone network intermediate conveyor equipment.But under certain operating conditions, to passing
The requirement of defeated stability is higher, and single link easily produces failure, therefore can increase SDHB equipment and SDHD equipment in network
Backup as SDHA equipment and SDHC equipment.However, now there is the problem of data transfer optimal path again, passed when normal
When defeated, transmission can be realized by primary link, the i.e. link of PC1- ＞ SDHA- ＞ SDHC- ＞ PC2, if PC1- ＞ SDHA
When link fails, SDHA- ＞ SDHC link fails, SDHC- ＞ PC2 link fails, how data pass
Defeated is optimal case, is to need to determine by the method set in advance.
In the prior art still without the method that network transmission path optimization is carried out for SDH network.
The content of the invention
A kind of the defects of present invention is directed to prior art, there is provided the network fast protection method of SDH equipment.
What the present invention was realized in：A kind of network fast protection method of SDH equipment, comprises the steps：
Step 1：Judge trouble point
Judge network failure point position, network failure point possibly be present at fiber link, ethernet link or trunk
Net equipment,
Wherein fiber link damage refers to that SDHA- ＞ SDHC (or SDHC- ＞ SDHA) network breaks down；
Ethernet link damage refers to that PC1- ＞ SDHA (or SDHC- ＞ PC2) network breaks down；
Backbone network device damage refers to that SDHA equipment (or SDHC equipment) breaks down,
When judged result is that fiber link is damaged, step 2 is performed；
When judged result is that ethernet link damages, step 3 is performed；
When judged result is backbone network device damage, step 4 is performed,
Step 2：Fiber link is damaged, network transmission reconstruct
Stand-by equipment, i.e. SDHB equipment and SDHD equipment are enabled first；
Then PC1- ＞ SDHA- ＞ SDHB- ＞ SDHD- ＞ SDHC- ＞ PC2 transmission link is established,
Step 3：Ethernet link damages, network transmission reconstruct
When PC1- ＞ SDHA transmission link failure, standby SDHB equipment is enabled；
Then PC1- ＞ SDHB- ＞ SDHA- ＞ SDHC- ＞ PC2 transmission link is established,
When SDHC- ＞ PC2 transmission link failure, standby SDHD equipment is enabled；
Then PC1- ＞ SDHA- ＞ SDHC- ＞ SDHD- ＞ PC2 transmission link is established,
Step 4：Backbone network device damage, network transmission reconstruct
When SDHA equipment faults, standby SDHB equipment is enabled；
Then PC1- ＞ SDHB- ＞ SDHD- ＞ SDHC- ＞ PC2 transmission link is established,
When SDHC transmission link failure, standby SDHD equipment is enabled；
Then PC1- ＞ SDHA- ＞ SDHB- ＞ SDHD- ＞ PC2 transmission link is established.
The remarkable result of the present invention is：, can be when main transmission link breaks down, quickly by the setting of the present invention
It is switched on the optimal transmission link of laser propagation effect, has saved the time cost of system transmission, optimized transmission link, ensureing
On the premise of network communication reliability, farthest ensure system laser propagation effect.
Brief description of the drawings
Fig. 1 is the network transmission schematic diagram of the transmission link with alternate device；
When Fig. 2 is that SDHA- ＞ SDHC (or SDHC- ＞ SDHA) go wrong, network transmission schematic diagram；
When Fig. 3 is that PC1- ＞ SDHA (or SDHC- ＞ PC2) go wrong, network transmission schematic diagram；
When Fig. 4 is that SDHA equipment (or SDHC equipment) goes wrong, network transmission schematic diagram.
Embodiment
As shown in accompanying drawing 2~4, a kind of network fast protection method of SDH equipment, comprise the steps：
Step 1：Judge trouble point
Judge network failure point position, network failure point possibly be present at fiber link, ethernet link or trunk
Net equipment.
Wherein fiber link damage refers to that SDHA- ＞ SDHC (or SDHC- ＞ SDHA) network breaks down；
Ethernet link damage refers to that PC1- ＞ SDHA (or SDHC- ＞ PC2) network breaks down；
Backbone network device damage refers to that SDHA equipment (or SDHC equipment) breaks down.
Judging the method used in network failure point is the common method of this area, such as the network event carried in HSRP agreements
Barrier point determination methods.
When judged result is that fiber link is damaged, step 2 is performed；
When judged result is that ethernet link damages, step 3 is performed；
When judged result is backbone network device damage, step 4 is performed.
Step 2：Fiber link is damaged, network transmission reconstruct
Stand-by equipment, i.e. SDHB equipment and SDHD equipment are enabled first；
Then PC1- ＞ SDHA- ＞ SDHB- ＞ SDHD- ＞ SDHC- ＞ PC2 transmission link is established.
Step 3：Ethernet link damages, network transmission reconstruct
When PC1- ＞ SDHA transmission link failure, standby SDHB equipment is enabled；
Then PC1- ＞ SDHB- ＞ SDHA- ＞ SDHC- ＞ PC2 transmission link is established.
When SDHC- ＞ PC2 transmission link failure, standby SDHD equipment is enabled；
Then PC1- ＞ SDHA- ＞ SDHC- ＞ SDHD- ＞ PC2 transmission link is established.
Step 4：Backbone network device damage, network transmission reconstruct
When SDHA equipment faults, standby SDHB equipment is enabled；
Then PC1- ＞ SDHB- ＞ SDHD- ＞ SDHC- ＞ PC2 transmission link is established.
When SDHC transmission link failure, standby SDHD equipment is enabled；
Then PC1- ＞ SDHA- ＞ SDHB- ＞ SDHD- ＞ PC2 transmission link is established.
Claims (1)
1. the network fast protection method of a kind of SDH equipment, it is characterised in that comprise the steps：
Step 1：Judge trouble point
Judge network failure point position, network failure point possibly be present at fiber link, ethernet link or backbone network and set
It is standby,
Wherein fiber link damage refers to that SDHA- ＞ SDHC, or SDHC- ＞ SDHA network break down；
Ethernet link damage refers to that PC1- ＞ SDHA, or SDHC- ＞ PC2 network break down；
Backbone network device damage refers to that SDHA equipment, or SDHC equipment break down,
When judged result is that fiber link is damaged, step 2 is performed；
When judged result is that ethernet link damages, step 3 is performed；
When judged result is backbone network device damage, step 4 is performed,
Step 2：Fiber link is damaged, network transmission reconstruct
Stand-by equipment, i.e. SDHB equipment and SDHD equipment are enabled first；
Then PC1- ＞ SDHA- ＞ SDHB- ＞ SDHD- ＞ SDHC- ＞ PC2 transmission link is established,
Step 3：Ethernet link damages, network transmission reconstruct
When PC1- ＞ SDHA transmission link failure, standby SDHB equipment is enabled；
Then PC1- ＞ SDHB- ＞ SDHA- ＞ SDHC- ＞ PC2 transmission link is established,
When SDHC- ＞ PC2 transmission link failure, standby SDHD equipment is enabled；
Then PC1- ＞ SDHA- ＞ SDHC- ＞ SDHD- ＞ PC2 transmission link is established,
Step 4：Backbone network device damage, network transmission reconstruct
When SDHA equipment faults, standby SDHB equipment is enabled；
Then PC1- ＞ SDHB- ＞ SDHD- ＞ SDHC- ＞ PC2 transmission link is established,
When SDHC failures, standby SDHD equipment is enabled；
Then PC1- ＞ SDHA- ＞ SDHB- ＞ SDHD- ＞ PC2 transmission link is established.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399243.1A CN105099543B (en) | 2015-07-09 | 2015-07-09 | A kind of network fast protection method of SDH equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510399243.1A CN105099543B (en) | 2015-07-09 | 2015-07-09 | A kind of network fast protection method of SDH equipment |
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| Publication Number | Publication Date |
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| CN105099543A CN105099543A (en) | 2015-11-25 |
| CN105099543B true CN105099543B (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510399243.1A Active CN105099543B (en) | 2015-07-09 | 2015-07-09 | A kind of network fast protection method of SDH equipment |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764144A (en) * | 2005-09-30 | 2006-04-26 | 烽火通信科技股份有限公司 | Method for carrying out VPR protection inversion in network |
| CN201114093Y (en) * | 2007-06-15 | 2008-09-10 | 上海未来宽带技术及应用工程研究中心有限公司 | Optical fibre line protector for protecting PON network |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002359627A (en) * | 2001-05-30 | 2002-12-13 | Nec Corp | Protection system, virtual concatenation processing block, node and ring network |
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2015
- 2015-07-09 CN CN201510399243.1A patent/CN105099543B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1764144A (en) * | 2005-09-30 | 2006-04-26 | 烽火通信科技股份有限公司 | Method for carrying out VPR protection inversion in network |
| CN201114093Y (en) * | 2007-06-15 | 2008-09-10 | 上海未来宽带技术及应用工程研究中心有限公司 | Optical fibre line protector for protecting PON network |
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| Publication number | Publication date |
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| CN105099543A (en) | 2015-11-25 |
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