CN101686179A - Transmission method, nodes and point-to-point network of link status release information - Google Patents
Transmission method, nodes and point-to-point network of link status release information Download PDFInfo
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- CN101686179A CN101686179A CN200810168856A CN200810168856A CN101686179A CN 101686179 A CN101686179 A CN 101686179A CN 200810168856 A CN200810168856 A CN 200810168856A CN 200810168856 A CN200810168856 A CN 200810168856A CN 101686179 A CN101686179 A CN 101686179A
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Abstract
The invention discloses a transmission method, nodes and a point-to-point network of link status release information, relating to the communication field. The transmission method of the link status release information comprises the following steps: marking partial control channels of a plurality of control channels in normal operation between a first node and a second node as a flooding control channel; and using the flooding control channel to transmit the link status release information when the link status between the first node and the second node changes. The embodiment of the invention also provides nodes and a point-to-point network corresponding to the transmission method of the link status release information. The embodiment of the invention only chooses partial control channels flooding link status from a plurality of control channels in normal operation to distribute information, thus greatly reducing flooding information amount and improving route resuming performance.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method, node device and point to point network of link status release information transmission.
Background technology
ASON (Automatically Switched Optical Network, ASON) be to utilize standard agreements such as signaling, route, automatic discovery, the realization route is calculated automatically, connects automatically and sets up, the intelligent Optical Transmission Network OTN of functions such as the automatic discovery of Internet resources.The ASON structure can be divided into transmission plane, control plane and management plane according to function.Wherein, control plane has automatic neighbours, automatic link and automatic topological discover function.
Control plane is by OSPF-TE (Open Shortest Path First-Traffic Engineering, the ospf traffic engineering) agreement is carried out automatic TE (Traffic Engineering, traffic engineering) Topology Discovery, its basic principle is inundation (Flooding) mechanism of OSPF (Open Shortest Path First, ospf traffic engineering).
After the link occurs fault of certain in the network, the node detection of both link ends is to this fault, generate TE-LSA (Traffic Engineering-Link State Advertisement, flow engineering link state publications bag), and start inundation mechanism, TE-LSA is sent to all neighbor nodes.The node that inundation mechanism only requires to receive inundation information is with broadcast mode, by the current whole control channels that are in normal operating conditions, information is transmitted to separately other neighbor nodes except that the node that transmission information is come.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
When having many control channels between two nodes that connect in point-to-point mode, inundation mechanism can send TE-LSA on two internodal every control channels.Because the contained data volume of TE-LSA is bigger, and on many control channels, repeat to send, therefore can take the mass communication bandwidth, influence the signaling packet transmission; Increase the workload of intra-node processor, influenced the routing performance of node, prolonged the network topological convergence time of OSPF.
Summary of the invention
The embodiment of the invention provides a kind of can reduce the inundation amount of information, improve method, node and the point to point network of the link status release information transmission of route recovery performance.
For solving the problems of the technologies described above, embodiment provided by the present invention is achieved through the following technical solutions:
On the one hand, embodiments of the invention provide a kind of transmission method of link status release information.
A kind of transmission method of link status release information comprises:
Between sign first node and the Section Point in the control channel of many operate as normal part control channel be inundation control channel;
When the Link State between described first node and described Section Point changes, use described inundation control channel to send link status release information.
On the one hand, embodiments of the invention also provide a kind of node.
A kind of node comprises:
Control channel is selected module, and the control channel part control channel that is used for identifying many operate as normal between this node and the Section Point is inundation control channel;
The inundation module is used for when the Link State between this node and Section Point changes, and the inundation control channel of using described control channel to select module to choose sends link status release information.
On the other hand, embodiments of the invention also provide a kind of point to point network.
A kind of point to point network comprises that described first node is used for by the control channel of many operate as normal continuous first node and Section Point:
Identify that part control channel is inundation control channel in the control channel of many operate as normal between this node and the Section Point;
When the Link State between described point and described Section Point changes, use described inundation control channel to send link status release information.
The embodiment of the invention is under the situation of the control channel that has many operate as normal between two nodes, only in the control channel of many operate as normal, select part control channel inundation link status release information, significantly reduce the inundation amount of information, improved the route recovery performance.
Description of drawings
The flow chart of the transmission method of a kind of link status release information that Fig. 1 provides for embodiments of the invention;
Fig. 2 is the flow chart of a kind of transmission method of link status release information in the embodiment of the invention one;
Fig. 3 is the flow chart of a kind of transmission method of link status release information in the embodiment of the invention two;
The structural representation of the node that Fig. 4 provides for one embodiment of the invention;
The structural representation of the node that Fig. 5 provides for another embodiment of the present invention;
The structural representation of the point to point network that Fig. 6 provides for the embodiment of the invention.
Embodiment
The technical scheme that embodiment provided for a better understanding of the present invention at first is introduced the application scenarios of the embodiment of the invention in point to point network:
Comprise first node and Section Point in the point to point network; This first node and Section Point be neighbor node each other; Comprise many control channels and at least one business data transmission link between this first node and the Section Point.
Embodiments of the invention provide a kind of transmission method of link status release information.
A kind of transmission method of link status release information comprises:
As shown in Figure 1,101, between sign first node and the Section Point in the control channel of many operate as normal part control channel be inundation control channel;
In this step, the part control channel of operate as normal is inundation control channel between first node sign first node and the Section Point, and the control channel that is specially an operate as normal of sign is inundation control channel.
102, when the Link State between described first node and described Section Point changes, use described inundation control channel to send link status release information.
Wherein the situation of link-state change comprises that the change of link available bandwidth, link cost attribute change, link are normal from fault recovery.
The embodiment of the invention is under the situation of the control channel that has many operate as normal between two nodes, only in the control channel of many operate as normal, select part control channel inundation link status release information, significantly reduce the inundation amount of information, improved the route recovery performance.
Below the embodiment of the invention one is described in detail.
Below in conjunction with accompanying drawing the embodiment of the invention one is described.
The embodiment of the invention one is by all adding inundation status attribute sign for the control channel of many operate as normal between first node and the Section Point, and the value that this inundation status attribute sign is set distinguishes each bar control channel, selects a control channel to carry out the purpose of inundation thereby reach.
As shown in Figure 2, the transmission method of the link status release information that the embodiment of the invention provides comprises:
201, be the control channel interpolation inundation status attribute sign of many operate as normal between first node and the Section Point;
In this step, first node can add inundation status attribute sign for the control channel of whole operate as normal between first node and the Section Point;
202, select part control channel as inundation control channel;
In this step, the inundation status attribute that first node is provided with a control channel in the control channel of many operate as normal between first node and the Section Point is designated enables, and the inundation status attribute that the control channel of other operate as normal between first node and the Section Point is set is designated forbidding; With inundation status attribute ident value is that the control channel of enabling is as inundation control channel.
When the control channel that operate as normal is arranged between first node and the Section Point was opened, first node detected the described control channel of newly opening, for it adds inundation status attribute sign;
The inundation status attribute ident value of the control channel of other operate as normal between first node detection and the Section Point; If the inundation status attribute ident value of control channel that operate as normal has been arranged is for enabling, then the inundation status attribute ident value with the described control channel of newly opening is made as forbidding; If the inundation status attribute ident value of control channel that does not have an operate as normal is for enabling, then the inundation status attribute ident value of the described control channel of newly opening is made as and enables.
203, when the Link State between first node and Section Point changes, use described inundation control channel to send link status release information;
In this step, the Link State that detects between first node and Section Point when first node changes, and the inundation control channel that first node uses the inundation status attribute to be designated and enables sends link status release information.
Wherein the situation of link-state change comprises that the change of link available bandwidth, link cost attribute change, link are normal from fault recovery.
204, detecting inundation control channel breaks down;
In this step, when the control channel of the operate as normal between first node and the Section Point broke down, first node detected this fault; Afterwards, first node detects the inundation status attribute ident value of the control channel that breaks down; If the inundation status attribute ident value of this Fault Control passage is forbidding, then directly with this control channel deletion; If the inundation status attribute ident value of this Fault Control passage is for enabling, the control channel that fault is described is the inundation control channel of current use, with execution in step 205.
205, the control channel of selecting the part operate as normal except that inundation control channel continues to send Link State issue bag as new inundation control channel;
In this step, first node selects except that fault inundation control channel another to be in the control channel of normal operating conditions, its inundation status attribute ident value is made as enables, with it as new inundation control channel; And will be not the link status release information finished of inundation transfer to and continue on the new inundation control channel to send.
206, delete the inundation control channel that breaks down;
In this step, first node is with the inundation control channel deletion of breaking down.
The embodiment of the invention two reaches and select the purpose as inundation control channel transmission link state publications information from many control channel by being one in many control channels between first node and Section Point interpolation inundation sign.
As shown in Figure 3, the transmission method of the link status release information that the embodiment of the invention provides comprises:
301, be that part control channel in the control channel of many operate as normal between first node and the Section Point is added the inundation sign;
In this step, for the control channel of an operate as normal between first node and the Section Point is added the inundation sign;
When between first node and the Section Point control channel of the operate as normal of newly opening being arranged, first node detect and Section Point between except that the control channel of newly opening other operate as normal the control channel; If there has been the control channel of operate as normal to have the inundation sign, then do not add sign for the control channel of newly opening; If there is not the control channel of an operate as normal to have the inundation sign, then add sign for the control channel of newly opening.
302, select part control channel as inundation control channel;
In this step, first node selects to have the control channel of inundation sign as inundation control channel.
303, when the Link State between first node and Section Point changes, use described inundation control channel to send link status release information;
In this step, the Link State that detects between first node and Section Point when first node changes, and first node uses the inundation control channel that has the inundation sign to send link status release information.
Wherein the situation of link-state change comprises that the change of link available bandwidth, link cost attribute change, link are normal from fault recovery.
304, select new inundation control channel;
In this step, after first node uses inundation control channel transmission link state publications information, just the inundation sign of inundation control channel is deleted; And in the control channel of other operate as normal except that described inundation control channel, select the control channel of an operate as normal by random fashion or by predefined order, be that it adds inundation sign, with it as new inundation control channel; In that link-state change takes place, when needing to transmit new link status release information, then transmit described information by new inundation control channel; Can repeat the inundation sign of the inundation control channel of the current use of above-mentioned deletion, select the control channel of other operate as normal to add the flow process that inundation identifies.By with different control channel transmission link state publications information, load that can each bar control channel of balance avoids a control channel to produce fault owing to utilance is too high.
305, detecting inundation control channel breaks down;
In this step, when the control channel of operate as normal between first node and the Section Point broke down, first node detected this fault; Afterwards, first node detects the control channel break down and whether has the inundation sign; If this Fault Control passage does not have the inundation sign, then directly with this control channel deletion; If this Fault Control passage has the inundation sign, the control channel that fault is described is the inundation control channel of current use, with execution in step 306.
306, the inundation sign of deletion fault inundation control channel;
In this step, first node is with the inundation sign deletion of the inundation control channel of fault.
307, the control channel of selecting the part operate as normal except that inundation control channel continues to send Link State issue bag as new inundation control channel;
In this step, first node is selected the control channel of another operate as normal except that fault inundation control channel, is that it adds inundation and identifies, with it as new inundation control channel; And will be not the link status release information finished of inundation transfer to and continue on the new inundation control channel to send.
308, delete the inundation control channel that breaks down;
In this step, first node is with the inundation control channel deletion of breaking down.
The embodiment of the invention is under the situation of the control channel that has many operate as normal between two nodes, only in the control channel of many operate as normal, select part control channel inundation link status release information, significantly reduce the inundation amount of information, improved the route recovery performance.
Embodiments of the invention also provide a kind of node.
As shown in Figure 4, a kind of node, the control channel by many operate as normal links to each other with Section Point, and this node comprises:
Control channel is selected module 401, and the control channel part control channel that is used for identifying many operate as normal between this node and the Section Point is inundation control channel;
Described control channel selects module 401 specifically to comprise:
Sign adding device 403 is used to the control channel of many operate as normal between this node and the Section Point to add inundation status attribute sign;
In the present embodiment, between described this node of sign and the Section Point in the control channel of many operate as normal part control channel be inundation control channel for the control channel that inundation control channel is specially an operate as normal between sign this node and the Section Point.
The node that provides in another embodiment of the present invention comprises:
As shown in Figure 5, control channel is selected module 501, is used to the part control channel in the control channel of many operate as normal between this node and the Section Point to add the inundation sign, and the described part control channel that will have the inundation sign is as inundation control channel;
In the present embodiment, between described this node of sign and the Section Point in the control channel of many operate as normal part control channel be inundation control channel for the control channel that inundation control channel is specifically as follows an operate as normal between sign this node and the Section Point.
As shown in Figure 6, embodiments of the invention also provide a kind of point to point network.
A kind of point to point network is characterized in that, comprises that described first node 601 is used for by the control channel of many operate as normal continuous first node 601 and Section Point 602:
Identify that part control channel is inundation control channel in the control channel of many operate as normal between this node and the Section Point;
When the Link State between described point and described Section Point changes, use described inundation control channel to send link status release information.
The embodiment of the invention is under the situation of the control channel that has many operate as normal between two nodes, only in the control channel of many operate as normal, select part control channel inundation link status release information, significantly reduce the inundation amount of information, improved the route recovery performance.
In the point to point network of another embodiment of the present invention, be with the difference of the point to point network of the foregoing description, between described this node of sign and the Section Point in the control channel of many operate as normal part control channel can be specially for inundation control channel:
A control channel that identifies in the control channel of described many operate as normal is inundation control channel.
First node in the point to point network in the embodiment of the invention can be the node that the embodiment of the invention described above provides.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (15)
1, a kind of transmission method of link status release information is characterized in that, comprising:
Between sign first node and the Section Point in the control channel of many operate as normal part control channel be inundation control channel;
When the Link State between described first node and described Section Point changes, use described inundation control channel to send link status release information.
2, the transmission method of link status release information according to claim 1 is characterized in that, the part control channel in the control channel of many operate as normal between described sign first node and the Section Point comprises for inundation control channel:
For the part control channel in the control channel of many operate as normal between first node and the Section Point is added inundation status attribute sign;
The inundation status attribute that this part control channel in described many control channels is set is designated enables, with this part control channel as inundation control channel.
3, the transmission method of link status release information according to claim 1 and 2 is characterized in that, the part control channel in the control channel of many operate as normal between described sign first node and the Section Point is that inundation control channel also comprises:
For other control channel outside this part control channel in the control channel of many operate as normal between described first node and the described Section Point is added inundation status attribute sign;
The inundation status attribute that described other control channel is set is designated forbidding.
4, the transmission method of link status release information according to claim 1 is characterized in that, the part control channel between described sign first node and the Section Point in the control channel of many operate as normal comprises for inundation control channel:
Add the inundation sign for the part control channel in the control channel of many operate as normal between first node and the Section Point, the described part control channel that will have the inundation sign is as inundation control channel.
5, according to the transmission method of claim 1 or 4 described link status release informations, it is characterized in that, when described Link State when between described first node and described Section Point changes, use described inundation control channel to send link status release information and comprise:
Link State when between first node and Section Point changes, and uses the described part control channel of carrying the inundation sign to send link status release information;
Delete the inundation sign of this part control channel;
Select another part control channel in the control channel of other operate as normal outside this part control channel, for this another part control channel is added the inundation sign.
6, the transmission method of link status release information according to claim 2, it is characterized in that the part control channel in the control channel of many operate as normal between described first node and the Section Point is specially a control channel in the control channel of many operate as normal between described first node and the Section Point.
7, the transmission method of link status release information according to claim 4, it is characterized in that the part control channel in the control channel of many operate as normal between described first node and the Section Point is specially a control channel in the control channel of many operate as normal between described first node and the Section Point.
8, the transmission method of link status release information according to claim 1 and 2 is characterized in that, the part control channel between described sign first node and the Section Point in the control channel of many operate as normal is that inundation control channel also comprises:
When the control channel of the operate as normal of newly opening, be that the control channel of this operate as normal of newly opening is added inundation status attribute sign;
Whether the inundation status attribute sign that detects the control channel of other operate as normal except that the control channel of this operate as normal of newly opening between first node and the Section Point also is not provided with, and perhaps whether is set to forbidding;
If the inundation status attribute sign of the control channel of other operate as normal except that this newly opens the control channel of operate as normal all also is not provided with or is set to forbidding, the inundation status attribute that this control channel of newly opening operate as normal then is set is designated enables;
If there has been the inundation status attribute sign of a control channel to be set to enable in the control channel of other operate as normal except that the control channel of this operate as normal of newly opening, the inundation status attribute that the control channel of this operate as normal of newly opening then is set is designated forbidding.
According to the transmission method of claim 1 or 4 described link status release informations, it is characterized in that 9, the part control channel between described sign first node and the Section Point in the control channel of many operate as normal is that inundation control channel also comprises:
When the control channel of the operate as normal of newly opening, whether the control channel that detects other operate as normal except that the control channel of this operate as normal of newly opening between first node and the Section Point has inundation identifies:
If the control channel of other operate as normal except that the control channel of this operate as normal of newly opening does not have the inundation sign, then add the inundation sign for the control channel of this operate as normal of newly opening;
If there has been a control channel to have the inundation sign in the control channel of other operate as normal except that the control channel of this operate as normal of newly opening, then do not add the inundation sign for the control channel of this operate as normal of newly opening.
10, the transmission method of link status release information according to claim 1 is characterized in that, also comprises:
Detecting described inundation control channel breaks down;
The control channel of selecting part operate as normal in other control channel except that described inundation control channel is as new inundation control channel;
The inundation control channel that deletion is broken down.
11, a kind of node, the control channel by many operate as normal links to each other with Section Point, and this node comprises:
Control channel is selected module, and the control channel part control channel that is used for identifying many operate as normal between this node and the Section Point is inundation control channel;
The inundation module is used for when the Link State between this node and Section Point changes, and the inundation control channel of using described control channel to select module to choose sends link status release information.
12, node according to claim 11 is characterized in that, described control channel selects module to comprise:
The sign adding device is used to the control channel of many operate as normal between this node and the Section Point to add inundation status attribute sign;
Processing unit, the inundation status attribute of part control channel that is used for being provided with the control channel of described many operate as normal is designated enables, with this part control channel as inundation control channel.
13, node according to claim 11, it is characterized in that, described control channel selects module specifically to be used to the part control channel in the control channel of many operate as normal between this node and the Section Point to add the inundation sign, and the described part control channel that will have the inundation sign is as inundation control channel.
14, a kind of point to point network is characterized in that, comprises that described first node is used for by the control channel of many operate as normal continuous first node and Section Point:
Identify that part control channel is inundation control channel in the control channel of many operate as normal between this node and the Section Point;
When the Link State between described point and described Section Point changes, use described inundation control channel to send link status release information.
15, point to point network according to claim 14 is characterized in that, between described this node of sign and the Section Point in the control channel of many operate as normal part control channel be specially for inundation control channel:
A control channel that identifies in the control channel of described many operate as normal is inundation control channel.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015054883A1 (en) * | 2013-10-18 | 2015-04-23 | 华为技术有限公司 | Data synchronization method and node device |
| US11290942B2 (en) | 2020-08-07 | 2022-03-29 | Rockwell Collins, Inc. | System and method for independent dominating set (IDS) based routing in mobile AD hoc networks (MANET) |
| US11296966B2 (en) | 2019-11-27 | 2022-04-05 | Rockwell Collins, Inc. | System and method for efficient information collection and distribution (EICD) via independent dominating sets |
| CN114430387A (en) * | 2020-10-15 | 2022-05-03 | 华为技术有限公司 | Node configuration method, controller and node |
| WO2022088746A1 (en) * | 2020-10-31 | 2022-05-05 | 华为技术有限公司 | Information transmission method and apparatus, and network node |
| CN115361331A (en) * | 2022-07-26 | 2022-11-18 | 北京奇艺世纪科技有限公司 | Channel selection method, system, device, electronic equipment and storage medium |
| US11646962B1 (en) | 2020-10-23 | 2023-05-09 | Rockwell Collins, Inc. | Zero overhead efficient flooding (ZOEF) oriented hybrid any-cast routing for mobile ad hoc networks (MANET) |
| US11665658B1 (en) | 2021-04-16 | 2023-05-30 | Rockwell Collins, Inc. | System and method for application of doppler corrections for time synchronized transmitter and receiver |
| US11726162B2 (en) | 2021-04-16 | 2023-08-15 | Rockwell Collins, Inc. | System and method for neighbor direction and relative velocity determination via doppler nulling techniques |
| US11737121B2 (en) | 2021-08-20 | 2023-08-22 | Rockwell Collins, Inc. | System and method to compile and distribute spatial awareness information for network |
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| US6385174B1 (en) * | 1999-11-12 | 2002-05-07 | Itt Manufacturing Enterprises, Inc. | Method and apparatus for transmission of node link status messages throughout a network with reduced communication protocol overhead traffic |
| CN101030967B (en) * | 2006-03-01 | 2011-11-30 | 中兴通讯股份有限公司 | Method for inspecting and maintaining network controlling channel accessibility |
| CN100579025C (en) * | 2006-03-30 | 2010-01-06 | 中兴通讯股份有限公司 | Route information maintaining method of automatic exchange optical network |
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| WO2015054883A1 (en) * | 2013-10-18 | 2015-04-23 | 华为技术有限公司 | Data synchronization method and node device |
| US11296966B2 (en) | 2019-11-27 | 2022-04-05 | Rockwell Collins, Inc. | System and method for efficient information collection and distribution (EICD) via independent dominating sets |
| US11290942B2 (en) | 2020-08-07 | 2022-03-29 | Rockwell Collins, Inc. | System and method for independent dominating set (IDS) based routing in mobile AD hoc networks (MANET) |
| CN114430387A (en) * | 2020-10-15 | 2022-05-03 | 华为技术有限公司 | Node configuration method, controller and node |
| US11646962B1 (en) | 2020-10-23 | 2023-05-09 | Rockwell Collins, Inc. | Zero overhead efficient flooding (ZOEF) oriented hybrid any-cast routing for mobile ad hoc networks (MANET) |
| WO2022088746A1 (en) * | 2020-10-31 | 2022-05-05 | 华为技术有限公司 | Information transmission method and apparatus, and network node |
| US11665658B1 (en) | 2021-04-16 | 2023-05-30 | Rockwell Collins, Inc. | System and method for application of doppler corrections for time synchronized transmitter and receiver |
| US11726162B2 (en) | 2021-04-16 | 2023-08-15 | Rockwell Collins, Inc. | System and method for neighbor direction and relative velocity determination via doppler nulling techniques |
| US11737121B2 (en) | 2021-08-20 | 2023-08-22 | Rockwell Collins, Inc. | System and method to compile and distribute spatial awareness information for network |
| CN115361331A (en) * | 2022-07-26 | 2022-11-18 | 北京奇艺世纪科技有限公司 | Channel selection method, system, device, electronic equipment and storage medium |
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| CN101686179B (en) | 2013-01-09 |
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