CN102263685A - Processing method of No Request (NR) protocol frame in Ethernet ring network and apparatus thereof - Google Patents
Processing method of No Request (NR) protocol frame in Ethernet ring network and apparatus thereof Download PDFInfo
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- CN102263685A CN102263685A CN2010101883776A CN201010188377A CN102263685A CN 102263685 A CN102263685 A CN 102263685A CN 2010101883776 A CN2010101883776 A CN 2010101883776A CN 201010188377 A CN201010188377 A CN 201010188377A CN 102263685 A CN102263685 A CN 102263685A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
Abstract
The invention discloses a processing method of a No Request (NR) protocol frame in Ethernet ring network and an apparatus thereof. The method comprises that: Ethernet ring network nodes send the NR protocol frame, wherein a value of Do Not Flush (DNF) signal in the NR protocol frame is indication DNF. By using the invention, a flow of processing the protocol frame by the Ethernet ring network nodes can be unified and complexity of the processing can be reduced.
Description
Technical field
The present invention relates to the communications field, do not have the processing method and the device of request protocol frame in particular to a kind of ethernet ring network.
Background technology
G.8032 the agreement of International Telecommunications Union's (International Telecommunication Union abbreviates ITU-T as) is for the ether layer of ring topology ethernet ring network has defined automatic protection switching agreement and mechanism.
In this mechanism; when the link of ethernet ring network breaks down; when perhaps node has been received the switching command request; if detecting the port or the switching command request port of fault is not ring protection link adjacent port; then non-working port or switching command request port can be blocked by the place node; node is opened ring protection link adjacent port under the ring protection link; make protected data to pass through from the ring protection link; produced new communication path between any two nodes on the ring protection link; ensure the connection again of communication path, improved the reliability of network.
But; in the handoff procedure of ethernet ring network; the communication path of protected data flow might change; because the address table information of each nodes records all may be no longer suitable after the communication path of protected data flow changes; so the possible refresh address table of each node, concrete action is for deleting the address entry that encircles upper port.Usually when ethernet ring network switches, the node that produces change action sends protection turning protocol frame and notifies other node to switch, and other node is received refresh address table behind this protection turning protocol frame.Can cause the broadcasting of protected data flow but unnecessary address table refreshes, take link bandwidth resource, increase protection switch time.
In the correlation technique; in order to distinguish ethernet ring network different situation in handoff procedure; having introduced not in the protection turning protocol frame that sends, refresh address (is Do Not Flush; be called for short DNF) sign; this sign is set to 0; be used to notify other nodes to need refresh address, be set to 1, be used to notify other nodes not need refresh address.
When ethernet ring network switches; if producing the protection switching request port of the node of change action was not to be in blocked state before switching; after then switching; the communication path of protected data flow might change; therefore the sign that do not refresh in the protection turning protocol frame of this node transmission is changed to 0; other node needs the refresh address table after receiving this protection turning protocol frame, has ensured the correct switching of protected data flow.As shown in Figure 1, suppose that node S2 and S3 detect link failure, at first node S2 blocks port 22 and the port 31 that links to each other with faulty link respectively with S3, and transmission link failure alarm protocol frame (is a Signal Fail protocol frame, be called for short the SF protocol frame, be a kind of protection turning protocol frame) notify other node to protect switching, because node S2 and S3 are before blocking the port 22 and port 31 that links to each other with faulty link respectively, these two ports are not blocked states, therefore the not refresh address sign in the link failure alarm protocol frame of node S2 and S3 transmission is set to 0, and other nodes need the refresh address table after receiving this protocol frame; After node S1 receives link failure alarm protocol frame under the ring protection link; open the port one 1 that links to each other with the ring protection link of obstruction, in addition, after each node is received link failure alarm protocol frame; because not refresh address sign wherein is set to 0, carries out the refresh address table handling.
The inventor finds; before switching, be in blocked state if produce the protection switching request port of the node of change action; behind link-recovery; according to G.8032 stipulating; the node of link-recovery sends the related protocol frame; for example: protection turning protocol frame; the sign that do not refresh wherein is changed to 1 (promptly; notify other nodes not need refresh address); this node sends no request protocol frame simultaneously; the sign that do not refresh of no request protocol frame was changed to for 0 (that is, notify other nodes to need refresh address, the ethernet ring network node does not need refresh address after receiving no request protocol frame).As shown in Figure 2; node S2 and S3 detect link-recovery, and then node S2 and S3 can send no request protocol frame (be No Request protocol frame, be called for short the NR protocol frame); at this moment the protected data communication path of whole looped network does not change, so each node all there is no need the refresh address table.But when node sent no request protocol frame, the not refresh address sign of protocol frame was set to 0.Like this, since G.8032 the no request protocol frame that receives of ethernet ring network node and other carry in protocol frame do not refresh indicate different, so G.8032 the ethernet ring network node is received after the protocol frame, at first judge the type of protocol frame, if there is not the request protocol frame, refresh address table not then is not if protocol frame is no request protocol frame, the setting that then further judgement does not refresh sign determines whether the refresh address table again, and node is more loaded down with trivial details to the processing procedure of protocol frame.
Summary of the invention
The processing method and the device that provide a kind of ethernet ring network not have the request protocol frame is provided main purpose of the present invention, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of ethernet ring network not have the processing method of request protocol frame.
The processing method that ethernet ring network according to the present invention does not have the request protocol frame comprises: the ethernet ring network node sends no request protocol frame, and wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address.
Further, said method also comprises: other ethernet ring network node in the ethernet ring network except that above-mentioned ethernet ring network node receives no request protocol frame, and the value that judgement does not refresh sign is then carried out not refresh address table handling for indicating not refresh address.
Further, the above-mentioned value that does not refresh sign is 1.
To achieve these goals, according to a further aspect of the invention, provide a kind of ethernet ring network node.
Ethernet ring network node according to the present invention comprises: sending module, be used for sending no request protocol frame, and wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address.
Further, above-mentioned ethernet ring network node also comprises: receiver module is used for receiving no request protocol frame; Judge module is used to judge that the value that does not refresh sign is for indicating not refresh address; Processing module is used to carry out not refresh address table handling.
Further, the value that does not refresh sign is 1.
To achieve these goals, according to a further aspect of the invention, provide a kind of ethernet ring network.
Ethernet ring network according to the present invention comprises a plurality of nodes, and wherein, above-mentioned node comprises: sending module, be used for sending no request protocol frame, and wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address.
Further, node also comprises: receiver module is used for receiving no request protocol frame; Judge module is used to judge that the value that does not refresh sign is for indicating not refresh address; Processing module is used to carry out not refresh address table handling.
Further, the value that does not refresh sign is 1.
By the present invention, adopt the ethernet ring network node to send no request protocol frame, wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address, solved in the ethernet ring network handoff procedure, because it is inconsistent that no request protocol frame and other protocol frame carry DNF, must determine whether refresh address by judging the protocol frame type, cause the loaded down with trivial details problem of ethernet ring network node processing flow process, and then reached the effect of unified ethernet ring network node processing protocol frame flow process, and lower the complexity of ethernet ring network node processing.
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 to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the operation schematic diagram of the ethernet ring network link according to correlation technique when breaking down;
Fig. 2 is that the ethernet ring network link according to correlation technique breaks down and recovers the back and return the operation schematic diagram of cutting;
Fig. 3 is that ethernet ring network does not have the flow chart of request protocol frame processing method according to the preferred embodiment of the invention;
Fig. 4 is according to the Ethernet ring protection structural representation behind the link failure recovery of the embodiment of the invention;
Fig. 5 is the structured flowchart according to the ethernet ring network node of the embodiment of the invention;
Fig. 6 is the preferred construction block diagram according to the ethernet ring network node of the embodiment of the invention; And
Fig. 7 is the structured flowchart according to the ethernet ring network of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention provides a kind of ethernet ring network not have the request protocol frame processing method, and this method comprises: the ethernet ring network node sends no request protocol frame, and wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address.
In the correlation technique, in the ethernet ring network handoff procedure, since G.8032 the no request protocol frame that receives of ethernet ring network node and other carry in protocol frame do not refresh indicate different, so G.8032 the ethernet ring network node is received after the protocol frame, at first judge the type of protocol frame, if there is not the request protocol frame, refresh address table not then, if protocol frame is not no request protocol frame, the setting that then further judgement does not refresh sign determines whether the refresh address table again, and node is more loaded down with trivial details to the processing procedure of protocol frame.Pass through the embodiment of the invention, after determining link-recovery, the ethernet ring network node sends no request protocol frame, wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address, after other nodes receive no request protocol frame, do not carry out the refresh address table handling according to the sign that do not refresh of protocol frame.Overcome no request protocol frame and do not refreshed the different nodes that cause of the sign problem loaded down with trivial details the protocol frame processing procedure with G.8032 other carry in protocol frame, and then reached the effect of unified ethernet ring network node processing protocol frame flow process, and lowered the complexity of ethernet ring network node processing.
Preferably, said method also comprises: other ethernet ring network node in the ethernet ring network except that the ether looped network node receives no request protocol frame, and the value that judgement does not refresh sign is then carried out not refresh address table handling for indicating not refresh address.The preferred embodiment has realized that other node of ethernet ring network after receiving no request protocol frame, do not judge the protocol frame type, carries out corresponding operating according to the value that does not refresh sign of no request protocol frame, has reduced the complexity of ethernet ring network node to the protocol frame operation.
Preferably, the value that does not refresh sign is 1, passes through the preferred embodiment, the sign that do not refresh of no request protocol frame is unified mutually with other protocol frame, realized that node is unified to the handling process of protocol frame, simultaneously, the value that does not refresh sign is made as 1, is easy to hardware and realizes.
Fig. 3 is that ethernet ring network does not have the flow chart of request protocol frame processing method according to the preferred embodiment of the invention, as shown in Figure 3, comprising:
Step S301, the Ethernet ring protection node sends no request protocol frame;
The sign that do not refresh in the no request protocol frame that step S302, node will send is changed to effectively, and for example effectively numerical value is decided to be 1 approximately;
Step S303, other node receive above-mentioned no request protocol frame, if not refreshing of protocol frame is masked as effectively, then do not need the refresh address table.
This embodiment has realized transmission and the receiving course of ethernet ring network node to no request protocol frame, and the node that receives no request protocol frame carries out not refresh address table handling according to the information that no request protocol frame carries.
Fig. 4 is according to the Ethernet ring protection structural representation behind the link failure recovery of the embodiment of the invention; as shown in Figure 4; suppose that node S2 and S3 detect link-recovery; then can to send no request protocol frame (be No Request protocol frame for node S2 and S3; be called for short the NR protocol frame); at this moment the protected data communication path of whole looped network does not change, so each node all there is no need the refresh address table.According to technical scheme of the present invention, but when node sends no request protocol frame, the sign that do not refresh of protocol frame is set to effectively, for example effectively numerical value is decided to be 1 approximately, therefore node S2 and S3 are when sending no request protocol frame, the sign that do not refresh wherein is set to 1, when other node is received no request protocol frame, is masked as 1 according to not refreshing of protocol frame and judges not refresh address table.
This embodiment has simplified the treatment step of ethernet ring network to protocol frame, and unified ethernet ring network node is to the handling process of protocol frame.
Fig. 5 is the structured flowchart according to the ethernet ring network node of the embodiment of the invention, and this ethernet ring network node comprises: sending module 52 is described in detail said structure below:
Sending module 52 is used for sending no request protocol frame, and wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address.
In the correlation technique, in the ethernet ring network handoff procedure, since G.8032 the no request protocol frame that receives of ethernet ring network node and other carry in protocol frame do not refresh indicate different, so G.8032 the ethernet ring network node is received after the protocol frame, at first judge the type of protocol frame, if there is not the request protocol frame, refresh address table not then, if protocol frame is not no request protocol frame, the setting that then further judgement does not refresh sign determines whether the refresh address table again, and node is more loaded down with trivial details to the processing procedure of protocol frame.Pass through the embodiment of the invention, sending module sends no request protocol frame, and wherein, the value that does not refresh sign of no request protocol frame is for indicating not refresh address, after other nodes receive no request protocol frame, do not carry out the refresh address table handling according to the sign that do not refresh of protocol frame.Overcome no request protocol frame and do not refreshed the different nodes that cause of the sign problem loaded down with trivial details the protocol frame processing procedure with G.8032 other carry in protocol frame, and then reached the effect of unified ethernet ring network node processing protocol frame flow process, and lowered the complexity of ethernet ring network node processing.
Fig. 6 is the preferred construction block diagram according to the ethernet ring network node of the embodiment of the invention, and as shown in Figure 6, this ethernet ring network node also comprises: receiver module 62, judge module 64 and processing module 66 are described in detail said structure below:
Receiver module 62 is connected to sending module 52, is used to receive the no request protocol frame that sending module 52 sends; Judge module 64 is connected to receiver module 62, is used for judging that the value that does not refresh sign that no request protocol frame that receiver module 62 receives carries is for indicating not refresh address; Processing module 66 is connected to judge module 64, is used for judging the value that do not refresh sign when indicating not refresh address at judge module 64, carries out not refresh address table handling.
The preferred embodiment has realized that other node of ethernet ring network is after receiving no request protocol frame, no longer judge the protocol frame type operations, directly carry out not refresh address table handling, reduced the complexity of ethernet ring network node the protocol frame operation according to the value that does not refresh sign of no request protocol frame.
Fig. 7 is the structured flowchart according to the ethernet ring network of the embodiment of the invention, this ethernet ring network is made up of a plurality of ethernet ring network nodes as shown in Figure 6, and wherein, each node is followed protocol groups network configuration circlewise, the concrete structure of each node does not repeat them here as shown in Figure 6.
The preferred embodiment, realized that ethernet ring network is behind link-recovery, the ethernet ring network node is to the transmission and the receiving course of no request protocol frame, reach the node that receives no request protocol frame and carry out not refresh address table handling, lowered the complexity of ethernet ring network node processing according to the information that no request protocol frame carries.
Need to prove that ethernet ring network node of describing among the device embodiment and ethernet ring network are corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, do not repeat them here.
In sum; by the present invention; the looped network node of ethernet ring network is when sending no request protocol frame; the value that does not refresh sign is set to indicate not refresh address; other nodes receive behind the no request protocol frame by not refreshing sign just can be known and not need the refresh address table; having unified node processing does not have the operation of request protocol frame and other protection turning protocol frames; simplified the handling process to protocol frame of ethernet ring network node; improve ethernet ring network node processing protocol frame efficient, reduced the complexity that the ethernet ring network agreement realizes.
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 element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, 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 being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. an ethernet ring network does not have the processing method of request protocol frame, it is characterized in that, comprising:
The ethernet ring network node sends no request protocol frame, and wherein, the value that does not refresh sign of described no request protocol frame is for indicating not refresh address.
2. method according to claim 1 is characterized in that, also comprises:
Other ethernet ring network node in the ethernet ring network except that described ethernet ring network node receives described no request protocol frame, judges that the described value that does not refresh sign for indicating not refresh address, then carries out not refresh address table handling.
3. method according to claim 1 and 2 is characterized in that, the described value that does not refresh sign is 1.
4. an ethernet ring network node is characterized in that, comprising:
Sending module is used for sending no request protocol frame, and wherein, the value that does not refresh sign of described no request protocol frame is for indicating not refresh address.
5. ethernet ring network node according to claim 4 is characterized in that, also comprises:
Receiver module is used to receive described no request protocol frame;
Judge module is used to judge that the described value of sign that do not refresh is for indicating not refresh address;
Processing module is used to carry out not refresh address table handling.
6. according to claim 4 or 5 described ethernet ring network nodes, it is characterized in that the described value that does not refresh sign is 1.
7. an ethernet ring network is characterized in that, comprising: a plurality of nodes, and wherein, described node comprises:
Sending module is used for sending no request protocol frame, and wherein, the value that does not refresh sign of described no request protocol frame is for indicating not refresh address.
8. ethernet ring network according to claim 7 is characterized in that, described node also comprises:
Receiver module is used to receive described no request protocol frame;
Judge module is used to judge that the described value of sign that do not refresh is for indicating not refresh address;
Processing module is used to carry out not refresh address table handling.
9. according to claim 7 or 8 described ethernet ring networks, it is characterized in that the described value that does not refresh sign is 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101883776A CN102263685A (en) | 2010-05-24 | 2010-05-24 | Processing method of No Request (NR) protocol frame in Ethernet ring network and apparatus thereof |
| PCT/CN2010/079672 WO2011147176A1 (en) | 2010-05-24 | 2010-12-10 | Method and device for processing no request protocol frame of ethernet ring network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101883776A CN102263685A (en) | 2010-05-24 | 2010-05-24 | Processing method of No Request (NR) protocol frame in Ethernet ring network and apparatus thereof |
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| CN102263685A true CN102263685A (en) | 2011-11-30 |
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| CN2010101883776A Pending CN102263685A (en) | 2010-05-24 | 2010-05-24 | Processing method of No Request (NR) protocol frame in Ethernet ring network and apparatus thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6766482B1 (en) * | 2001-10-31 | 2004-07-20 | Extreme Networks | Ethernet automatic protection switching |
| CN101662408A (en) * | 2008-08-27 | 2010-03-03 | 中兴通讯股份有限公司 | Address list updating method and device based on ring network |
| CN101702684A (en) * | 2009-11-06 | 2010-05-05 | 中兴通讯股份有限公司 | Method for realizing to refresh Ethernet ring network forwarding database and device |
-
2010
- 2010-05-24 CN CN2010101883776A patent/CN102263685A/en active Pending
- 2010-12-10 WO PCT/CN2010/079672 patent/WO2011147176A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6766482B1 (en) * | 2001-10-31 | 2004-07-20 | Extreme Networks | Ethernet automatic protection switching |
| CN101662408A (en) * | 2008-08-27 | 2010-03-03 | 中兴通讯股份有限公司 | Address list updating method and device based on ring network |
| CN101702684A (en) * | 2009-11-06 | 2010-05-05 | 中兴通讯股份有限公司 | Method for realizing to refresh Ethernet ring network forwarding database and device |
Non-Patent Citations (1)
| Title |
|---|
| TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU: "Ethernet ring protection switch", 《RECOMMENDATION ITU-T G.8032/Y.1344》 * |
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| WO2011147176A1 (en) | 2011-12-01 |
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Application publication date: 20111130 |