CN101345590B - SNCP business collocation method - Google Patents
SNCP business collocation method Download PDFInfo
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- CN101345590B CN101345590B CN2008102140171A CN200810214017A CN101345590B CN 101345590 B CN101345590 B CN 101345590B CN 2008102140171 A CN2008102140171 A CN 2008102140171A CN 200810214017 A CN200810214017 A CN 200810214017A CN 101345590 B CN101345590 B CN 101345590B
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Abstract
The invention discloses a SNCP business configuration method. SNCP protection group comprises first access and second access, and establishes restoration access for first access with trouble, composes a new SNCP protection group by second access and restoration access, executes predetermined processing for SNCP business configuration under predetermined condition. The predetermined condition is that new SNCP protection group and SNCP protection group shares common access and SNCP business intersects the second access of new SNCP protection group, and that SNCP configuration of SNCP protection group is modified while SNCP intersection relation is not changed in predetermined processing. The invention can reduces transient interruption times of SNCP business.
Description
Technical field
The present invention relates to the communications field; particularly; relate to a kind of SNCP (Sub-network Connection Protection, SNCP) business collocation method for auto switching optical-fiber network (Automatic Switch Optical Network abbreviates ASON as).
Background technology
SNCP is the protection mechanism of SDH (Synchronous Digital Hierarchy) (Synchronous Digital Hierarchy abbreviates SDH as), is that scheme is switched in a kind of unidirectional or two-way protection end to end.This protection scheme can be special-purpose protection passage, only for the protection of " 1+1 " mode of purpose, also can be special-purpose protection passage, is used for supporting " 1: 1 " mode of extra traffic.
SNCP is widely used in the SDH network at present, is characterized in need not agreement support between network element, and the speed of switching is fast, is a kind of very important service protection mode.In ASON; when the service aisle among the SNCP or after protecting passage to break down; at first be to transmit the plane to have taken place to switch; business has obtained recovery in 50 milliseconds; subsequently; the control plane of ASON can be set up a recovery passage (connection) for the service aisle or the protection passage that have broken down; and revise and issue new SNCP simultaneously and protect information; if according to traditional SNCP protection configuration mode; at first need to delete original SNCP protection group; and then set up new protection group (usually, be defaulted as intersection can change be fitted on the service aisle), then may cause professional hit because former cross reference is modified.
At change the situation of joining SNCP protection group at webmaster; at present existingly solve the scheme that SNCP protection relation changes the problem of service interruption that timing causes; but the SNCP protection group protection relation that this scheme can't satisfy under the ASON environment dynamically changes the needs of joining; and; the employed algorithm of present scheme belongs to centralized algorithm; webmaster need be collected a plurality of network elements when handling real-time status, efficient is lower.
Summary of the invention
The present invention aims to provide a kind of SNCP business collocation method, to solve the problem that causes professional hit because of the modification of SNCP protection relation.
According to an aspect of the present invention, provide a kind of SNCP business collocation method.
According to SNCP business collocation method of the present invention, be used for ASON, this method comprises: SNCP protection group comprises first passage and second channel; For the first passage that breaks down in the SNCP protection group is set up the recovery passage; Second channel and recovery passage are formed new SNCP protection group; satisfying under the situation of predetermined condition; the SNCP business configuration is carried out predetermined process; wherein, predetermined condition is: there are public passage in new SNCP protection group and SNCP protection group, and the SNCP business intersects at the second channel in the new SNCP protection group; and in predetermined process; do not delete original SNCP cross reference, revise the SNCP configuration of SNCP protection group, and do not change the SNCP cross reference.
Preferably; be service aisle at first passage; under the situation of second channel for the protection passage, predetermined condition is specially: the protection passage of new SNCP protection group is identical with the protection passage of SNCP protection group, and the SNCP business intersects at the protection passage in the SNCP protection group.
Preferably, with second channel with recover passage and form new SNCP protection group and specifically comprise: with the protection passage configuration of the SNCP protection group protection passage as new SNCP protection group, and will recover the passage configuration conduct service aisle of SNCP protection group newly.
Preferably, before setting up the recovery passage for the first passage that breaks down in the SNCP protection group, this method also comprises: the SNCP business of SNCP protection group is switched to the protection passage.
Preferably, the SNCP configuration of modification SNCP protection group specifically comprises: the recovery passage that the service aisle of SNCP protection group is revised as new SNCP protection group; Predetermined process further comprises: will protect switch status to be revised as and switch.
Preferably; be service aisle at first passage; under the situation of second channel for the protection passage, predetermined condition is specially: the service aisle of new SNCP protection group is identical with the protection passage of SNCP protection group, and the SNCP business intersects at the protection passage in the SNCP protection group.
Preferably, with second channel with recover passage and form new SNCP protection group and specifically comprise: with the protection passage configuration of the SNCP protection group service aisle as new SNCP protection group, and will recover the passage configuration conduct protection passage of SNCP protection group newly.
Preferably, before setting up the recovery passage for the first passage that breaks down in the SNCP protection group, this method also comprises: the SNCP business of SNCP protection group is switched to the protection passage.
Preferably, the SNCP configuration of modification SNCP protection group specifically comprises: the service aisle of SNCP protection group is revised as the protection passage of new SNCP protection group, and the protection passage of SNCP protection group is revised as the recovery passage of new SNCP protection group; Predetermined process further comprises: will protect switch status to be revised as and switch.
Preferably; be the protection passage at first passage; second channel is that predetermined condition is specially under the situation of service aisle: the service aisle of new SNCP protection group is identical with the service aisle of SNCP protection group, and the SNCP business intersects at the service aisle in the SNCP protection group.
Preferably, with second channel with recover passage and form new SNCP protection group and specifically comprise: with the service aisle configuration of the SNCP protection group service aisle as new SNCP protection group, and will recover the passage configuration conduct protection passage of SNCP protection group newly.
Preferably, the SNCP configuration of modification SNCP protection group specifically comprises: the recovery passage that the protection passage of SNCP protection group is revised as new SNCP protection group.
Preferably; be the protection passage at first passage; second channel is that predetermined condition is specially under the situation of service aisle: the protection passage of new SNCP protection group is identical with the service aisle of SNCP protection group, and the SNCP business intersects at the service aisle in the SNCP protection group.
Preferably, with second channel with recover passage and form new SNCP protection group and specifically comprise: with the service aisle configuration of the SNCP protection group protection passage as new SNCP protection group, and will recover the passage configuration conduct service aisle of SNCP protection group newly.
Preferably, the SNCP configuration of modification SNCP protection group specifically comprises: the protection passage of SNCP protection group is revised as the service aisle of new SNCP protection group, and the service aisle of SNCP protection group is revised as the recovery passage of new SNCP protection group.
By technique scheme of the present invention, adopt to revise to dispose and judge original professional crossing condition before earlier, finish changing of SNCP protection group by the mode of revising protection group state rather than cross reference again and join action, can reduce the number of times of SNCP business hit.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the SNCP business collocation method of the embodiment of the invention;
Fig. 2 a to Fig. 2 c is the schematic diagram according to the SNCP business collocation method of the embodiment of the invention one and embodiment two;
Fig. 3 a to Fig. 3 c is the schematic diagram according to the SNCP business collocation method of the embodiment of the invention three and embodiment four.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in restriction the present invention.
According to the embodiment of the invention, provide a kind of SNCP business collocation method.
SNCP business collocation method according to the embodiment of the invention is used for ASON, mainly realizes at equipment, and is transparent to control plane and management plane (webmaster).Fig. 1 is the flow chart according to the SNCP business collocation method of the embodiment of the invention.As shown in Figure 1, this method comprises following processing:
Step S102, SNCP protection group comprises first passage and second channel;
Step S104 is for the first passage that breaks down in the SNCP protection group is set up the recovery passage; Wherein, first passage and second channel are respectively in the passage one of service aisle and protection;
Step S106; second channel and recovery passage are formed new SNCP protection group; satisfying under the situation of predetermined condition, the SNCP business configuration is being carried out predetermined process, wherein; predetermined condition is: there are public passage in new SNCP protection group and SNCP protection group; and the SNCP business intersects at the second channel in the new SNCP protection group, and, in predetermined process; revise the SNCP configuration of SNCP protection group, and do not change the SNCP cross reference.
The scene of the different passages that following basis breaks down is described the present invention respectively.
Embodiment one: first passage is service aisle, and second channel is the protection passage
Step 1, the service aisle in the SNCP protection group breaks down, and the SNCP business of SNCP protection group is switched to the protection passage, and sets up for the service aisle that breaks down and to recover passage;
Step 2 with the protection passage of the protection passage of SNCP protection group configuration as new SNCP protection group, and will be recovered the passage configuration conduct service aisle of SNCP protection group newly;
Step 3, the protection passage that judges whether to satisfy new SNCP protection group is identical with the protection passage of SNCP protection group, and the SNCP business intersects at the protection passage in the SNCP protection group;
Step 4 is under the situation that is in judged result, does not change the professional cross reference of SNCP, the service aisle of SNCP protection group is revised as the recovery passage of new SNCP protection group;
Step 5 will be protected switch status to be revised as and switch.
Can understand above-mentioned processing better by the following implementation procedure that provides.
Step 1. is supported the SNCP business in the ASON network, the basic principle of SNCP is exactly dual transmitting and receiving, and shown in Fig. 2 a, the SNCP business transmits by service aisle and protection passage;
Step 2. transmits plane (equipment) generation SNCP protection and switches after service aisle breaks down, and shown in Fig. 2 b, business switches on the protection passage;
Step 3.ASON control plane detects service aisle and breaks down, and sets up a job for service aisle and recovers passage, shown in Fig. 2 c, recovers passage and original protection passage with working and constitutes a new SNCP protection relation, and be issued to the transmission plane;
Step 4.Transmit the plane and receive two changes, one is the deletion to original SNCP relation, another is new SNCP configuration, transmit the plane and search for original SNCP configuration, find that current state satisfies the condition of doing special processing (the protection passage of new business and current business identical with the protection passage of former business intersects at and protect on the passage), transmit the plane and can not delete original SNCP cross reference this moment, but directly revise former SNCP protection configuration: (1) is revised as work with the service aisle in the former SNCP protection group and is recovered passage; (2) will protect switch status to be revised as and switch, and if amended SNCP protection has reply-attribute, then also need to start and switch the answer timer, need to switch back service aisle behind the timer expiry.
Embodiment two: first passage is service aisle, and second channel is the protection passage
Step 1, the service aisle in the SNCP protection group breaks down, and the SNCP business of SNCP protection group is switched to the protection passage, and sets up for the service aisle that breaks down and to recover passage;
Step 2 with the service aisle of the protection passage of SNCP protection group configuration as new SNCP protection group, and will be recovered the passage configuration conduct protection passage of SNCP protection group newly;
Step 3, the service aisle that judges whether to satisfy new SNCP protection group is identical with the protection passage of SNCP protection group, and the SNCP business intersects at the protection passage in the SNCP protection group;
Step 4 is under the situation that is in judged result, does not change the professional cross reference of SNCP, the service aisle of SNCP protection group is revised as the protection passage of new SNCP protection group;
Step 5 will be protected switch status to be revised as and switch.
Can understand above-mentioned processing better by the following implementation procedure that provides.
Step 1. is supported the SNCP business in the ASON network, the basic principle of SNCP is exactly dual transmitting and receiving, and shown in Fig. 2 a, the SNCP business transmits by service aisle and protection passage;
Step 2. transmits plane (equipment) generation SNCP protection and switches after service aisle breaks down, and shown in Fig. 2 b, business switches on the protection passage;
Step 3.ASON control plane detects service aisle and breaks down, and sets up a job for service aisle and recovers passage, shown in Fig. 2 c, recovers passage and original protection passage with working and constitutes a new SNCP protection relation, and be issued to the transmission plane;
Step 4. transmits the plane and receives two changes, one is the deletion to original SNCP relation, another is new SNCP configuration, transmit the plane and search for original SNCP configuration, find that current state satisfies the condition of doing special processing (the protection passage of the service aisle of new business and former business identical and current business intersect on the protection passage of former business), transmit the plane and can not delete original SNCP cross reference this moment, but directly revise former SNCP protection configuration: (1) is revised as the protection passage with the service aisle in the former SNCP protection group, and the protection passage in the former protection group is revised as the recovery passage; (2) will protect switch status to be revised as and switch, and if amended SNCP protection has reply-attribute, then also need to start and switch the answer timer, need to switch back service aisle behind the timer expiry.
By above-mentioned processing, can prevent that recoverable SNCP protection from switching back service aisle after Switching restoration time arrives, can reduce once professional hit.
Embodiment three: first passage is the protection passage, and second channel is service aisle
Step 1, the protection passage in the SNCP protection group breaks down, and sets up for the protection passage that breaks down and recovers passage;
Step 2 with the service aisle of the service aisle of SNCP protection group configuration as new SNCP protection group, and will be recovered the passage configuration conduct protection passage of SNCP protection group newly;
Step 3, the service aisle that judges whether to satisfy new SNCP protection group is identical with the service aisle of SNCP protection group, and the SNCP business intersects at the service aisle in the SNCP protection group;
Step 4 is under the situation that is in judged result, does not change the professional cross reference of SNCP, the protection passage of SNCP protection group is revised as the recovery passage of new SNCP protection group.
Can understand above-mentioned processing better by the following implementation procedure that provides.
Step 1. is supported the SNCP business in the ASON network, the basic principle of SNCP is exactly dual transmitting and receiving, and shown in Fig. 3 a, the SNCP business transmits by service aisle and protection passage;
Step 2. is shown in Fig. 3 b, and the protection passage breaks down; The ASON control plane detects the protection passage and breaks down, and for the protection passage is set up a recovery passage, shown in Fig. 3 c, will recover passage and original service aisle and constitute a new SNCP protection relation, and be issued to the transmission plane;
Step 3. transmits the plane and receives two changes; one is the deletion to original SNCP relation; another is new SNCP configuration; transmit the plane and search for original SNCP configuration; find that current state satisfies the condition of doing special processing (service aisle of new business identical with the service aisle of former business and current business intersect on the service aisle); transmit the plane and can not delete original SNCP cross reference this moment, but directly revise former SNCP protection configuration: the protection passage in the former SNCP protection group is revised as newly-built recovery passage.
Embodiment four: first passage is the protection passage, and second channel is service aisle
Step 1, the protection passage in the SNCP protection group breaks down, and sets up for the protection passage that breaks down and recovers passage;
Step 2 with the protection passage of the service aisle of SNCP protection group configuration as new SNCP protection group, and will be recovered the passage configuration conduct service aisle of SNCP protection group newly;
Step 3, the protection passage that judges whether to satisfy new SNCP protection group is identical with the service aisle of SNCP protection group, and the SNCP business intersects at the service aisle in the SNCP protection group;
Step 4 is under the situation that is in judged result, does not change the professional cross reference of SNCP, the protection passage of SNCP protection group is revised as the service aisle of new SNCP protection group, and the service aisle of SNCP protection group is revised as the recovery passage of new SNCP protection group.
Can understand above-mentioned processing better by the following implementation procedure that provides.
Step 1. is supported the SNCP business in the ASON network, the basic principle of SNCP is exactly dual transmitting and receiving, and shown in Fig. 3 a, the SNCP business transmits by service aisle and protection passage;
Step 2. is shown in Fig. 3 b, and the protection passage breaks down; The ASON control plane detects the protection passage and breaks down, and for the protection passage is set up a recovery passage, shown in Fig. 3 c, will recover passage and original service aisle and constitute a new SNCP protection relation, and be issued to the transmission plane;
Step 3. transmits the plane and receives two changes; one is the deletion to original SNCP relation; another is new SNCP configuration; transmit the plane and search for original SNCP configuration; find that current state satisfies the condition of doing special processing (the protection passage of new business identical with the service aisle of former business and current business intersect on the service aisle of former business); transmit the plane and can not delete original SNCP cross reference this moment; but directly revise former SNCP protection configuration: the service aisle in the former SNCP protection group is revised as newly-built recovery passage, and the protection passage of former protection group is revised as service aisle.
By above-mentioned a plurality of embodiment, because the cross reference of original SNCP protection group is not changed, therefore can not cause the hit of original business.
Embodiments of the invention are not only applicable to the processing that the ASON environment recovers the service aisle of SNCP protection, and simultaneously, the SNCP business in the non-ASON environment of also being applicable to changes joins.
In sum, pass through the above embodiment of the present invention, adopt to revise to dispose and judge original professional crossing condition before earlier, finish changing of SNCP protection group by the mode of revising protection group state rather than cross reference again and join action, can thoroughly solve the problem that causes professional hit because of the modification of SNCP protection relation; And this algorithm is realized at the equipment network element, need not the webmaster intervention, has well satisfied the requirement under the ASON environment; And each network element only need be paid close attention to the data of self, treatment effeciency height.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a SNCP SNCP business collocation method that is used for the auto switching optical-fiber network is characterized in that, comprising:
SNCP protection group comprises first passage and second channel;
For the first passage that breaks down in the described SNCP protection group is set up the recovery passage;
Described second channel and described recovery passage are formed new SNCP protection group; satisfying under the situation of predetermined condition; the SNCP business configuration is carried out predetermined process; wherein; described predetermined condition is: there are public passage in described new SNCP protection group and described SNCP protection group; and the SNCP business intersects at the second channel in the described new SNCP protection group; and in described predetermined process; do not delete original SNCP cross reference; revise the SNCP configuration of described SNCP protection group, and do not change the SNCP cross reference:
Wherein, the SNCP configuration of revising described SNCP protection group comprises:
Be service aisle at first passage, under the situation of second channel for the protection passage, the predetermined condition that is satisfied is specially: the service aisle of described new SNCP protection group is identical with the protection passage of described SNCP protection group, and the SNCP business intersects at the protection passage in the described SNCP protection group, the service aisle of described SNCP protection group is revised as the protection passage of described new SNCP protection group, and the protection passage in the described SNCP protection group is revised as the recovery passage of described new SNCP protection group;
Perhaps; be the protection passage at first passage; second channel is under the situation of service aisle; the predetermined condition that is satisfied is specially: the protection passage of described new SNCP protection group is identical with the service aisle of described SNCP protection group; and the SNCP business intersects at the service aisle in the described SNCP protection group; the protection passage of described SNCP protection group is revised as the service aisle of described new SNCP protection group, and the service aisle of described SNCP protection group is revised as the recovery passage of described new SNCP protection group.
2. method according to claim 1 is characterized in that, substitutes the operation of " revising the SNCP configuration of described SNCP protection group " in order to operate down:
Be service aisle at described first passage; under the situation of described second channel for the protection passage; described predetermined condition is specially: the protection passage of described new SNCP protection group is identical with the protection passage of described SNCP protection group; and the SNCP business intersects at the protection passage in the described SNCP protection group, the service aisle of described SNCP protection group is revised as the recovery passage of described new SNCP protection group.
3. method according to claim 2 is characterized in that, described second channel and described recovery passage is formed new SNCP protection group specifically comprise:
With the protection passage of the protection passage of described SNCP protection group configuration as described new SNCP protection group, and with the service aisle of described recovery passage configuration as described new SNCP protection group.
4. method according to claim 2 is characterized in that, before setting up the recovery passage for the first passage that breaks down in the SNCP protection group, described method also comprises:
The SNCP business of described SNCP protection group is switched to the protection passage.
5. according to each described method in the claim 2 to 4, it is characterized in that,
Described predetermined process further comprises: will protect switch status to be revised as and switch.
6. method according to claim 1 is characterized in that, described second channel and described recovery passage is formed new SNCP protection group specifically comprise:
With the service aisle of the protection passage of described SNCP protection group configuration as described new SNCP protection group, and with the protection passage of described recovery passage configuration as described new SNCP protection group.
7. method according to claim 1 is characterized in that, before setting up the recovery passage for the first passage that breaks down in the SNCP protection group, described method also comprises:
The SNCP business of described SNCP protection group is switched to the protection passage.
8. according to each described method in the claim 1 to 7, it is characterized in that,
Described predetermined process further comprises: will protect switch status to be revised as and switch.
9. method according to claim 1 is characterized in that, substitutes the operation of " revising the SNCP configuration of described SNCP protection group " in order to operate down:
Be the protection passage at described first passage; described second channel is under the situation of service aisle; described predetermined condition is specially: the service aisle of described new SNCP protection group is identical with the service aisle of described SNCP protection group; and the SNCP business intersects at the service aisle in the described SNCP protection group, the protection passage of described SNCP protection group is revised as the recovery passage of described new SNCP protection group.
10. method according to claim 9 is characterized in that, described second channel and described recovery passage is formed new SNCP protection group specifically comprise:
With the service aisle of the service aisle of described SNCP protection group configuration as described new SNCP protection group, and with the protection passage of described recovery passage configuration as described new SNCP protection group.
11. method according to claim 1 is characterized in that, described second channel and described recovery passage is formed new SNCP protection group specifically comprise:
With the protection passage of the service aisle of described SNCP protection group configuration as described new SNCP protection group, and with the service aisle of described recovery passage configuration as described new SNCP protection group.
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| CN2008102140171A CN101345590B (en) | 2008-08-22 | 2008-08-22 | SNCP business collocation method |
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| CN107483332B (en) * | 2016-06-07 | 2022-08-02 | 中兴通讯股份有限公司 | Service transmission management method, device and system for subnet connection protection link |
| CN112019261B (en) * | 2019-05-31 | 2022-02-08 | 烽火通信科技股份有限公司 | Method and system for returning distributed control plane electrical layer 1+1 service |
| CN112532532B (en) * | 2020-11-16 | 2022-08-12 | 烽火通信科技股份有限公司 | Service returning method, device, equipment and readable storage medium |
| CN113114349B (en) * | 2021-04-19 | 2022-11-04 | 国网湖北省电力有限公司信息通信公司 | SNCP protection service detection method and power distribution optimization method for SDH system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802030A (en) * | 2005-01-07 | 2006-07-12 | 华为技术有限公司 | Service path adjusting and optimizing method |
| CN1859157A (en) * | 2005-07-28 | 2006-11-08 | 华为技术有限公司 | Service protective method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1802030A (en) * | 2005-01-07 | 2006-07-12 | 华为技术有限公司 | Service path adjusting and optimizing method |
| CN1859157A (en) * | 2005-07-28 | 2006-11-08 | 华为技术有限公司 | Service protective method |
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