CN100394740C - Method for transmitting control message and a station apparatus - Google Patents
Method for transmitting control message and a station apparatus Download PDFInfo
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- CN100394740C CN100394740C CNB200610078506XA CN200610078506A CN100394740C CN 100394740 C CN100394740 C CN 100394740C CN B200610078506X A CNB200610078506X A CN B200610078506XA CN 200610078506 A CN200610078506 A CN 200610078506A CN 100394740 C CN100394740 C CN 100394740C
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Abstract
The present invention discloses a method for transmitting a control message and a station device. The method comprises that the identification information of a control message is previously set; an event is triggered to occur, a source chip in the station device forms an Ethernet data frame, and the control message is packaged in the formed Ethernet data frame; the source chip uses a forwarding path of the Ethernet data for sending the Ethernet data frame packaging the control message to a destination chip in the station device; the destination chip identifies that the received Ethernet data frame is the Ethernet data frame packaging the control message according to the identification information of the control message, which is previously set, and also the destination chip acquires the control message from the Ethernet data frame. The present invention greatly reduces the time for transmitting the control message, and reduces the time delay of the entire switch processing process. Thus, the processing requirements of the rapid switch within 50 ms when the working state of an Ethernet automatic protective system (EAPS) changes can be satisfied.
Description
Technical field
The present invention relates to Ethernet automatic protective system (EAPS) technology, when particularly relating to a kind of operating state and changing at EAPS ring at method and a kind of site apparatus of the different chip chamber transmitting control messages of website inside.
Background technology
The EAPS ring is by a home site and a plurality of loop network structure of forming from website.At present, in order to guarantee the operate as normal of EAPS ring, EAPS ring protection reverse method and EAPS ring fault recovery method has been proposed.
Fig. 1 is the structural representation of EAPS ring.Referring to Fig. 1, at on the EAPS ring from website or link occurs fault, the operating state that is the EAPS ring becomes fault case from normal state, the EAPS ring protection reverse method that is provided at present comprises: when detect on the EAPS ring after website or link occurs fault, home site is opened the spare physical port that self blocks, generate fault notification message, and on the EAPS ring, send this fault notification message; On the EAPS ring each receives and transmits fault notification message respectively from website; Home site and the quick hand-off process of switching at the time execute protection of setting respectively from website; such as; switch from the state that encircles last two physical ports in EAPS, refresh medium access control (MAC) address table on these two physical ports etc. according to current website connection situation.
Referring to Fig. 1, the fault recovery of website or link on the EAPS ring, the operating state that is EAPS ring is when fault case becomes normal state, the EAPS ring fault recovery method that is provided at present comprises: after detecting the fault that takes place from website or link and having recovered, home site generates fault recovery message, and sends this fault recovery message on the EAPS ring; On the EAPS ring each receives and transmits fault recovery message respectively from website; Home site and carry out the quick hand-off process of fault recovery respectively in the time of setting from website, such as, switch from the state that encircles last two physical ports in EAPS, and refresh mac address table on these two physical ports etc. according to current website connection situation.
Wherein, when generating fault notification message and fault recovery message, finish by physical port place chip in the home site; And, from website, also be chip identification fault notification message or fault recovery message, thereby obtain the information that the operating state of EAPS ring changes by a physical port place.For ease of describing, below with a chip physical port place in the home site, that generate fault notification message or fault recovery message, and a chip physical port place, identification fault notification message or fault recovery message is referred to as source chip from website.
According to above description as can be seen, if on same chip, so, this chip is above-mentioned source chip at two physical ports on the EAPS ring for website, can obtain the information that the operating state of EAPS ring changes, carry out quick hand-off process thereby control two physical ports.Fig. 2 is a kind of internal structure schematic diagram of website.Referring to Fig. 2, if website at two physical ports on the EAPS ring not on same chip, so, the chip at source chip and this website another physical port place on the EAPS ring is called the purpose chip, then must communicate, be that the relevant control messages of source chip operating state must be changed the time is sent to the purpose chip, the purpose chip obtains the information that EAPS ring operating state changes according to the control messages that receives, thereby carry out quick hand-off process, such as, switch the state of physical port, and refresh mac address table on the physical port according to current website connection situation.
In the prior art, source chip and purpose chip communicate, the process that relevant control messages when being about to operating state and changing is sent to the purpose chip comprises: the relevant control messages the when CPU in the source chip encircles EAPS operating state and changes is sent to the CPU in the intermediate chip, and the CPU in this intermediate chip is sent to the control messages that receives among the CPU of purpose chip.
As seen, when the operating state of EAPS ring changed, a multicore sheet website inside, source chip and purpose chip communicated, i.e. transmitting control message is to realize by communicating by letter of each CPU between source chip and the purpose chip.According to real business demand, EAPS ring must have convergence rate faster, all hand-off process that can be when 50 milliseconds change with the interior EAPS of finishing ring operating state.But, because between source chip and purpose chip, each CPU all needs processing is analyzed, discerns and transmitted to the control messages that receives, its communication speed is slower, increased the time of transmitting control message, and then increased the time delay of whole handoff process, therefore, in the time of can't satisfying EAPS ring operating state and change at 50 milliseconds with interior quick hand-off process requirement.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of transmitting control message, another object of the present invention is to provide a kind of site apparatus, so that reduce the time of transmitting control message.
In order to achieve the above object, technical scheme of the present invention is achieved in that
A kind of method of transmitting control message is applied in the website on the EAPS ring, and this website comprises the Ethernet data forwarding passage between source chip, purpose chip and source chip and the purpose chip, sets in advance the identifying information of control messages, and this method also comprises:
A, trigger event take place, and source chip structure ethernet data frame is encapsulated in control messages in the ethernet data frame of being constructed;
B, source chip are transmitted passage by Ethernet data, and the ethernet data frame that will be packaged with control messages is sent to the purpose chip;
C, purpose chip are according to the identifying information of set control messages, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages, and therefrom obtains control messages.
Described source chip and purpose chip are arranged in home site;
In steps A, described trigger event comprises: source chip generates fault notification message, fault recovery message or other order relevant with switching.
Described source chip and purpose chip are arranged in from website;
In steps A, described trigger event comprises: source chip receives fault notification message, fault recovery message or other order relevant with switching.
This method further comprises: be provided with in the encapsulation format of ethernet data frame net load part and comprise length field and numeric field;
In steps A, the step that described source chip is encapsulated in control messages in the ethernet data frame of being constructed comprises: source chip encapsulates the length value of current control messages according to the length of control messages in the length field of net load part; And in the numeric field of net load part the content of the current control messages of encapsulation;
In step C, the step that described purpose chip obtains control messages comprises: the purpose chip obtains the content of control messages in the net load part numeric field according to the value of net load partial-length field.
This method further comprises: according to the pairing different operating type of different control messages different types values is set, and is provided with in the encapsulation format of ethernet data frame net load part and comprises type field;
In steps A, the step that described source chip is encapsulated in control messages in the ethernet data frame of being constructed further comprises: source chip is encapsulated as the set types value of current control messages in the type field of ethernet data frame net load part;
After step C, further comprise: the purpose chip is carried out corresponding quick hand-off process according to the content of the value of net load part type field and the control messages obtained.
The described step that sets in advance the identifying information of control messages comprises: the characteristic point of the ethernet data frame that the data forwarding passage is transmitted is set to the identifying information of control messages;
In step C, the step that described purpose chip identification is packaged with the ethernet data frame of control messages comprises: the purpose chip is according to the characteristic point of ethernet data frame, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages.
Described ethernet data frame is two layers of ethernet data frame;
The characteristic point of described ethernet data frame is: specific medium access control MAC address in the source chip, any one in the purpose chip in specific MAC Address and the ethernet type field or several combinations.
When comprising the particular mac address of source/purpose chip in the characteristic point of described ethernet data frame,
In steps A, when source chip is constructed described ethernet data frame, source chip with the particular mac address information of described source/purpose chip be encapsulated in construct in source/target MAC (Media Access Control) address field in two layers of ethernet data frame;
When comprising the ethernet type field in the characteristic point of described ethernet data frame,
In steps A, when source chip is constructed described ethernet data frame, source chip will be in advance by the set types value of all control messages be encapsulated in the ethernet type field in two layers of ethernet data frame of structure.
Described ethernet data frame is the IP packet;
The characteristic point of described ethernet data frame is: specific I P address in the source chip, any one in the purpose chip in specific address and the IP protocol domain or several combinations.
When comprising the particular ip address of source/purpose chip in the characteristic point of described ethernet data frame,
In steps A, when source chip was constructed described ethernet data frame, source chip was encapsulated in the particular ip address information of described source/purpose chip in source/purpose IP address field in the IP packet of being constructed;
When comprising the IP protocol domain in the characteristic point of described ethernet data frame,
In steps A, when source chip was constructed described ethernet data frame, source chip will be in advance be encapsulated in the IP protocol domain in the IP packet of being constructed for the set types value of all control messages.
A kind of site apparatus, this site apparatus be at two physical ports on the EAPS ring respectively on the source chip in this site apparatus and the purpose chip,
Described source chip, be used for structure ethernet data frame when trigger event takes place, control messages is encapsulated in the ethernet data frame of being constructed, and by and the purpose chip between Ethernet data transmit the ethernet data frame that passage will be packaged with control messages and be sent to the purpose chip;
Described purpose chip is used for the identifying information according to the control messages that sets in advance, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages, and therefrom obtains control messages.
Described purpose chip is used for the characteristic point according to the ethernet data frame that receives, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages.
This shows, in the present invention, come transmitting control message owing to transmit passage by the Ethernet data of service data transmission, therefore, the analysis, identification and the forwarding that need not CPU in each intermediate chip in transmission course are handled, and have significantly reduced the time of transmitting control message, have reduced the time delay of whole handoff process, therefore, in the time of can satisfying EAPS ring operating state and change at 50 milliseconds with interior quick hand-off process requirement.
Description of drawings
Fig. 1 is the structural representation of EAPS ring.
Fig. 2 is a kind of internal structure schematic diagram of website.
Fig. 3 is the flow chart of the embodiment of the invention.
Embodiment
In the prior art, source chip is sent to the purpose chip with control messages, is to realize by communicating by letter of CPU between source chip and the purpose chip, because the communication speed of CPU is slower, therefore, has increased the time of transmitting control message.And according to the business realizing characteristics of EAPS ring, in the website on the EAPS ring, exist Ethernet data to transmit passage between the different chips, be used to transmit the business datum on the EAPS ring, and, when in the data forwarding passage, sending ethernet data frame, need not the message identification of CPU and transmit processing, can transmit fast.Therefore, the present invention proposes a kind of method of transmitting control message, its core concept is: source chip is encapsulated in control messages in the ethernet data frame, transmits passage by Ethernet data this ethernet data frame is sent to the purpose chip; The purpose chip is resolved this ethernet data frame that receives, and obtains control messages.
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Fig. 3 is the flow chart of the embodiment of the invention.Referring to Fig. 3, the process of transmitting control message of the present invention may further comprise the steps:
Step 301: set in advance in the encapsulation format of ethernet data frame net load part and comprise length field and numeric field.
Here, can determine the concrete operations that to carry out according to control messages in order in subsequent process, to guarantee the purpose chip, can further include in this step: according to the pairing different operating type of different control messages different types values is set in advance, and is provided with in the encapsulation format of ethernet data frame net load part and comprises type field.Such as, a kind of state that is operating as the switching physical port of control messages correspondence, for the set types value of this kind control messages is 01, another kind of control messages correspondence be operating as the mac address table that refreshes on the physical port, for the set types value of this kind control messages is 10.
Step 302: the identifying information that sets in advance control messages.
In this step, the characteristic point of the ethernet data frame that can the data forwarding passage be transmitted is set to the identifying information of control messages, such as,
If what transmit in the data forwarding passage of website inside is two layers of ethernet data frame, so, in this step, the characteristic point of set ethernet data frame can be specific medium access control MAC address in the source chip, any one in the purpose chip in specific MAC Address and the ethernet type field (Ethertype) or several combinations.
If what transmit in the data forwarding passage of website inside is the IP packet, so, in this step, the characteristic point of set ethernet data frame can be specific I P address in the source chip, any one in the purpose chip in specific address and the IP protocol domain or several combinations.
Step 303: a website inside on the EAPS ring, source chip detect trigger event and take place.
Here, described website can be: on the EAPS ring, inside comprises a plurality of chips, and source chip is any one website of different chips with the purpose chip.
Wherein, if the described website of this step is a home site, so, source chip is meant a chip physical port place in the home site, that generate fault notification message, fault recovery message or other and switching related command, and the purpose chip is meant the chip at another physical port place in the home site.
If the described website of this step is from website, so, source chip is meant chip from a website physical port place, identification fault notification message, fault recovery message or other and switching related command, and the purpose chip is meant the chip at another physical port place from website.
And, in this step, if described website is a home site, so, described source chip detects trigger event and comprises: the operating state of EAPS ring changes, and the source chip in the home site generates fault notification message, fault recovery message or other order relevant with switching.If the described website of this step is from website, so, described source chip detects trigger event and comprises: the operating state of EAPS ring changes, and source chip receives fault notification message, fault recovery message or other order relevant with switching.
Step 304: source chip is according to the encapsulation format of the ethernet data frame that transmits in the data forwarding passage, and the structure ethernet data frame is encapsulated in control messages in the net load part in this ethernet data frame.
Here, the specific implementation process of encapsulation control messages comprises: source chip encapsulates the length value of current control messages according to the length of control messages in the length field of net load part; The content of source chip current control messages of encapsulation in the numeric field of net load part.
In addition, if in step 301, according to the pairing different operating type of different control messages different types values is set, and be provided with in the encapsulation format of ethernet data frame net load part and comprise type field, so, in this step, the specific implementation process of encapsulation control messages further comprises: source chip is encapsulated as the set types value of current control messages in the type field of net load part.
And in this step, source chip is according to the characteristic point structure ethernet data frame of the ethernet data frame that sets in advance.Such as, if what transmit in the data forwarding passage is two layers of ethernet data frame, and be when comprising the particular mac address of source/purpose chip in the characteristic point of its setting, source chip is at structure during ethernet data frame, with the particular mac address information of described source/purpose chip be encapsulated in the source/target MAC (Media Access Control) address field in two layers of ethernet data frame of constructing.For another example, what transmit in the data forwarding passage is two layers of ethernet data frame, and be when comprising the ethernet type field in the characteristic point of its setting, when source chip is constructed described ethernet data frame, source chip will be in advance by the set types value of all control messages be encapsulated in the ethernet type field in two layers of ethernet data frame of structure.
If what transmit in the data forwarding passage is the IP packet, and be when comprising the particular ip address of source/purpose chip in the characteristic point of its setting, when source chip was constructed described ethernet data frame, source chip was encapsulated in the particular ip address information of described source/purpose chip in source/purpose IP address field in the IP packet of being constructed.For another example, what transmit in the data forwarding passage is the IP packet, and comprise the IP protocol domain in the characteristic point of its setting, so, when source chip was constructed described ethernet data frame, source chip will be in advance be encapsulated in the IP protocol domain in the IP packet of being constructed for the set types value of all control messages.
Step 305: source chip is transmitted passage by Ethernet data, and the ethernet data frame that will be packaged with control messages is sent to the purpose chip.
Step 306: the purpose chip is according to the control messages identifying information that sets in advance, and identifying received Ethernet data is the ethernet data frame that is packaged with control messages.
The specific implementation process of this step is: the purpose chip is according to the characteristic point of received ethernet data frame, and identifying received Ethernet data is the ethernet data frame that is packaged with control messages.Such as,
What the purpose chip received is two layers of ethernet data frame, like this, the purpose chip is respectively specific MAC Address in MAC Address specific in the source chip and the purpose chip according to the value of source and destination MAC Address field in the received ethernet data frame, and identifying received Ethernet data is the ethernet data frame that is packaged with control messages.
For another example, what the purpose chip received is the IP packet, like this, the purpose chip is respectively in the source chip specific I P address in specific I P address and the purpose chip according to the value of source and destination IP address field in the received ethernet data frame, and carry the types value that is provided with for all control messages in advance in the received IP packet in the IP protocol domain field, identifying received Ethernet data is the ethernet data frame that is packaged with control messages.
Step 307: the purpose chip obtains the content of control messages from the ethernet data frame that is packaged with control messages.
Here, the specific implementation process of this step is: the purpose chip is peeled off the encapsulation of ethernet data frame, obtains net load part wherein, and according to the value of net load partial-length field, obtain the value of net load part numeric field, promptly obtained the particular content of control messages.
After this, after the purpose chip had obtained control messages, this purpose chip then can obtain the information that EAPS ring operating state changes according to control messages.Like this, the purpose chip can be carried out relevant quick hand-off process according to the content of the value of type field in the received ethernet data frame net load part and the control messages of being obtained.Such as, the value of type field is 01 o'clock in the ethernet data frame net load part, this purpose chip switches from the state that encircles last two physical ports in EAPS according to the content of the control messages of being obtained.For another example, the value of type field is 10 o'clock in the ethernet data frame net load part, and this purpose chip refreshes from the mac address table that encircles in EAPS on last two physical ports according to current website connection situation according to the content of the control messages of being obtained.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. the method for a transmitting control message; be applied in the website on the Ethernet automatic protective system EAPS ring; this website comprises the Ethernet data forwarding passage between source chip, purpose chip and source chip and the purpose chip; it is characterized in that; set in advance the identifying information of control messages, this method also comprises:
A, trigger event take place, and source chip structure ethernet data frame is encapsulated in control messages in the ethernet data frame of being constructed;
B, source chip are transmitted passage by Ethernet data, and the ethernet data frame that will be packaged with control messages is sent to the purpose chip;
C, purpose chip are according to the identifying information of set control messages, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages, and therefrom obtains control messages.
2. method according to claim 1 is characterized in that, described source chip and purpose chip are arranged in home site;
In steps A, described trigger event comprises: source chip generates fault notification message, fault recovery message or other order relevant with switching.
3. method according to claim 1 is characterized in that, described source chip and purpose chip are arranged in from website;
In steps A, described trigger event comprises: source chip receives fault notification message, fault recovery message or other order relevant with switching.
4. method according to claim 1 is characterized in that, this method further comprises: be provided with in the encapsulation format of ethernet data frame net load part and comprise length field and numeric field;
In steps A, the step that described source chip is encapsulated in control messages in the ethernet data frame of being constructed comprises: source chip encapsulates the length value of current control messages according to the length of control messages in the length field of net load part; And in the numeric field of net load part the content of the current control messages of encapsulation;
In step C, the step that described purpose chip obtains control messages comprises: the purpose chip obtains the content of control messages in the net load part numeric field according to the value of net load partial-length field.
5. according to claim 1 or 4 described methods, it is characterized in that, this method further comprises: according to the pairing different operating type of different control messages different types values is set, and is provided with in the encapsulation format of ethernet data frame net load part and comprises type field;
In steps A, the step that described source chip is encapsulated in control messages in the ethernet data frame of being constructed further comprises: source chip is encapsulated as the set types value of current control messages in the type field of ethernet data frame net load part;
After step C, further comprise: the purpose chip is carried out corresponding quick hand-off process according to the content of the value of net load part type field and the control messages obtained.
6. method according to claim 1 is characterized in that, the described step that sets in advance the identifying information of control messages comprises: the characteristic point of the ethernet data frame that the data forwarding passage is transmitted is set to the identifying information of control messages;
In step C, the step that described purpose chip identification is packaged with the ethernet data frame of control messages comprises: the purpose chip is according to the characteristic point of ethernet data frame, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages.
7. method according to claim 6 is characterized in that, described ethernet data frame is two layers of ethernet data frame;
The characteristic point of described ethernet data frame is: specific medium access control MAC address in the source chip, any one in the purpose chip in specific MAC Address and the ethernet type field or several combinations.
8. method according to claim 7 is characterized in that, when comprising the particular mac address of source/purpose chip in the characteristic point of described ethernet data frame,
In steps A, when source chip is constructed described ethernet data frame, source chip with the particular mac address information of described source/purpose chip be encapsulated in construct in source/target MAC (Media Access Control) address field in two layers of ethernet data frame;
When comprising the ethernet type field in the characteristic point of described ethernet data frame,
In steps A, when source chip is constructed described ethernet data frame, source chip will be in advance by the set types value of all control messages be encapsulated in the ethernet type field in two layers of ethernet data frame of structure.
9. method according to claim 6 is characterized in that, described ethernet data frame is the IP packet;
The characteristic point of described ethernet data frame is: specific I P address in the source chip, any one in the purpose chip in specific address and the IP protocol domain or several combinations.
10. method according to claim 9 is characterized in that, when comprising the particular ip address of source/purpose chip in the characteristic point of described ethernet data frame,
In steps A, when source chip was constructed described ethernet data frame, source chip was encapsulated in the particular ip address information of described source/purpose chip in source/purpose IP address field in the IP packet of being constructed;
When comprising the IP protocol domain in the characteristic point of described ethernet data frame,
In steps A, when source chip was constructed described ethernet data frame, source chip will be in advance be encapsulated in the IP protocol domain in the IP packet of being constructed for the set types value of all control messages.
11. a site apparatus, this site apparatus, is characterized in that respectively on the source chip in this site apparatus and the purpose chip at two physical ports on the EAPS ring,
Described source chip, be used for structure ethernet data frame when trigger event takes place, control messages is encapsulated in the ethernet data frame of being constructed, and by and the purpose chip between Ethernet data transmit the ethernet data frame that passage will be packaged with control messages and be sent to the purpose chip;
Described purpose chip is used for the identifying information according to the control messages that sets in advance, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages, and therefrom obtains control messages.
12. site apparatus according to claim 11 is characterized in that, described purpose chip is used for the characteristic point according to the ethernet data frame that receives, and identifying received ethernet data frame is the ethernet data frame that is packaged with control messages.
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| CNB200610078506XA CN100394740C (en) | 2006-05-08 | 2006-05-08 | Method for transmitting control message and a station apparatus |
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| CNB200610078506XA CN100394740C (en) | 2006-05-08 | 2006-05-08 | Method for transmitting control message and a station apparatus |
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| KR20090054186A (en) * | 2007-11-26 | 2009-05-29 | 삼성전자주식회사 | Data transmission method using downlink dummy control block and system according to the method |
| CN103957049A (en) * | 2014-05-22 | 2014-07-30 | 烽火通信科技股份有限公司 | Automatic optical fiber link protection method and system based on APS protocol |
| CN114553920B (en) * | 2021-11-17 | 2024-04-09 | 武汉领普科技有限公司 | Data processing method, device and storage medium |
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| US20030012135A1 (en) * | 2001-06-05 | 2003-01-16 | Andre Leroux | Ethernet protection system |
| CN1514565A (en) * | 2003-07-04 | 2004-07-21 | 上海全光网络科技股份有限公司 | City region interleave multiplex system photo monitoring channel |
| US20050122897A1 (en) * | 2003-12-05 | 2005-06-09 | Gonda Rumi S. | Supporting SDH/SONET APS bridge selector functionality for ethernet |
| CN1728721A (en) * | 2004-07-27 | 2006-02-01 | 邓里文 | Adaptation method in use for syncretizing Internet and Ethernet |
| CN1747438A (en) * | 2005-10-14 | 2006-03-15 | 杭州华为三康技术有限公司 | Method for assuring automatic protecting system regular service of Ethernet |
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| US20030012135A1 (en) * | 2001-06-05 | 2003-01-16 | Andre Leroux | Ethernet protection system |
| CN1514565A (en) * | 2003-07-04 | 2004-07-21 | 上海全光网络科技股份有限公司 | City region interleave multiplex system photo monitoring channel |
| US20050122897A1 (en) * | 2003-12-05 | 2005-06-09 | Gonda Rumi S. | Supporting SDH/SONET APS bridge selector functionality for ethernet |
| CN1728721A (en) * | 2004-07-27 | 2006-02-01 | 邓里文 | Adaptation method in use for syncretizing Internet and Ethernet |
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