CN1753381A - Route renewing method based on converying type network system - Google Patents
Route renewing method based on converying type network system Download PDFInfo
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Abstract
This invention discloses a route refresh method for an accumulated network system including: each node in said system sends a route refresh frame containing its own node identification to the master control node and each node passed through by said route refresh frame and its master control node refresh their own route list based on the node identification contained in the frame orderly.
Description
Technical field
The present invention relates to the routing iinformation administrative skill of network system, relate in particular to a kind of route renewing method based on converying type network system.
Background technology
Converying type network system is meant that the all-network node in the network system carries out physical connection with hierarchy, and wherein main controlled node is positioned at toply, is used for initiating the control signaling; Each node under the main controlled node control is meant and will participates in controlling the communication equipment that signaling is transmitted.Like this, in converying type network system, there is and only exists a route that is used for the transmitting control signaling between main controlled node and each node; And exist between two nodes controlling the signaling transitive relation to be referred to as to have annexation, and in having two nodes of annexation, the node of close main controlled node one side is referred to as upstream node, the another one node then is referred to as downstream node relatively; Therefore in converying type network system, the upstream node of each node has only one, and other and the node that self has an annexation all are referred to as the downstream node of this node.And in converying type network system, all store routing table in main controlled node and each node, be used to store the routing iinformation that be used for transmitting control signaling relevant with self.
See also Fig. 1, this figure is the composition of a converying type network system illustraton of model simple in structure in the prior art; There is and only exists a route that is used for the transmitting control signaling among this figure between main controlled node and node 1, node 2, node 3 and the node 4; Between main controlled node and the node 1, between node 1 and the node 2, between node 2 and the node 3, and main controlled node and node 4 between all have annexation, be node 1 as the upstream node of node 2 in the figure, and that its downstream node just exists is a plurality of, and one of them downstream node is node 3.Under this typical converying type network system structure, support the control signaling of whole network system proper communication to transmit between each node smoothly for being used in, the routing iinformation of storing in each node is upgraded in time, and to handle be very necessary and important.
In the prior art at present, the route of converying type network system is carried out method for updating mainly contain two kinds, specific as follows:
First kind: each node uses fixed route and main controlled node to control the signaling transmission;
In converying type network system, when each node uses fixed route and main controlled node to control the signaling transmission, new node of every increase in the system, just need by hand this newly-increased node to be provided with route, and at this newly-increased node to each node between the main controlled node, the routing iinformation that all needs corresponding this newly-increased node of increase, main controlled node just can pass to newly-increased node with the control signaling then.
With converying type network system shown in Figure 1 is example, if node 3 newly joins this system, be that node 3 is newly-increased node, just need to set up one by the signalling route of main controlled node to node 3 by hand, its detailed process is the routing iinformation that all increases relevant " node 3 " with manual mode successively on node 2, node 1 and main controlled node respectively.Set up like this and finish main controlled node behind the signalling route of node 3, the signaling message that node 3 sends just can arrive main controlled node, and the control signaling of main controlled node transmission simultaneously also can arrive node 3.
But obvious above-mentioned use fixed route mode is carried out method for updating to the route of converying type network system, the node that the route that needs at first judgement to upgrade will be passed through, one by one the node of each process is carried out the routing update setting by manual mode then, therefore causes certainly existing following defective:
A. by the routing table information of each node of manual mode updating maintenance, workload is bigger, and updating route information is safeguarded comparatively inconvenience;
B. new node adds converying type network system, need carry out after the routing configuration newly-increased node normally being used to newly-increased node, therefore is difficult to accomplish plug and play for newly-increased node.
Second kind: based on the routing update mode of dynamic learning mode;
This routing update mode requires to make then and learn routing table between each node mutually with each node in the router connection network system.
Be example still, join in the system, at this moment can regard node 1 and node 2 as router respectively if work as a node 3 with converying type network system shown in Figure 1; Node 2 can be revised the routing table of oneself automatically according to the adding information of node 3, and routing change message (being the message that node 3 adds system) is notified to node 1; Node 1 receives the routing table of initiatively revising self behind the notification message of node 2, and then the notice main controlled node is revised routing table; Just set up automatically to the signalling route of node 3 through main controlled node after the above-mentioned processing.
But in converying type network system, newly-increased intermediate node, only need its upstream node to know this message in fact, and corresponding change routing iinformation gets final product, its downstream node need not notified, and this routing update mode based on the dynamic learning mode is not considered this point, therefore will inevitably have some inevitable defectives in implementation process, and is as follows:
A. when also having other nodes in the whole converying type network system, such as the node among Fig. 14, this node 4 also can be counted as a router, main controlled node is given node 4 with the routing change message informing of comprehending node 3 adding systems, and can notify this routing change message to each node in the system with broadcast mode; Yet in fact just need set up main controlled node to the route between the node 3, and other incoherent nodes there is no need notified, therefore this routing update mode causes notification message transmission unnecessary in the system too much easily, and situation seriously may cause the message storm of network system down; And the stability of the whole network system of the serious disturbance of meeting;
B. this routing update mode may take the time of routing update process, so treatment effeciency is relative also lower because unnecessary notification message transmission is too much simultaneously.
Summary of the invention
The technical problem to be solved in the present invention be propose a kind of simple and convenient and can prevent the route renewing method that the message storm takes place based on converying type network system, with the stability of network system in the efficient that improves routing update and the routing update process.
For addressing the above problem, the present invention proposes a kind of route renewing method based on converying type network system, comprise step:
Each node in the described system sends the routing update frame include self node identification to main controlled node; And
Described routing update frame each node of process and main controlled node thereof upgrade self routing table successively according to the node identification that comprises in the routing update frame.
Described method also comprises step:
Fixedly duration is set in each node;
When two connected nodes disconnect, upstream node in these two nodes to each node between the main controlled node in described fixedly duration as receive the routing update frame that does not include this upstream node sign, just delete this upstream node sign that writes down in self routing table.
Described method also comprises step:
When two connected nodes disconnected, the upstream node in these two nodes sent the routing update frame that includes the unreachable information of self downstream node to main controlled node;
The routing update frame each node of process and main controlled node thereof successively according to the unreachable information of the node that comprises in the routing update frame, delete this downstream node sign that writes down in self routing table.
Described method also comprises step:
When two connected nodes disconnected, the downstream node in these two nodes abandoned the control signaling that self all downstream node is sent; Or
This downstream node issues the chain rupture indication frame that includes self node identification and gives all downstream nodes that are connected with self, and the node trial of receiving this chain rupture indication frame is with the upstream node of other nodes as self;
Or this downstream node closes the physical connection with self all downstream node, puts from as island state.
Wherein said each node cycle sends the routing update frame to main controlled node.
Wherein said each node and main controlled node thereof write down the routing iinformation that the node identification that comprises in the routing update frame upgrades respective nodes in self routing table successively.
Wherein said routing update frame comprises:
The frame type territory is used to carry routing update frame type identification information;
The node identification territory is used to carry node identification information; And
The node state territory, the state information that is used to carry node.
Wherein said chain rupture indication frame comprises:
The frame type territory is used to carry chain rupture indication frame type identification information;
The node identification territory is used to carry node identification information.
What the present invention is based on each node cycle in the route renewing method employing system of converying type network system sends the routing update frame that includes self node identification to main controlled node, and the routing update frame each node and the main controlled node of process according to the node identification that comprises in the routing update frame routing table of self is upgraded processing successively, therefore the routing update of whole network system processing is orderly automatically, can make the routing update process more simple and convenient, and can realize plug and play fast can make new node add system the time.
Adopt the route renewing method that the present invention is based on converying type network system simultaneously, only need between relevant node, to transmit the routing update frame, send the routing update frame to incoherent node and need not main controlled node with broadcast mode, therefore can avoid the generation of message storm in the network system, to reduce disturbance to network system stability; Correspondingly, because main controlled node need not to send the routing update frame to incoherent node with broadcast mode, also can improve the routing update efficient of network system.
Description of drawings
Fig. 1 is the composition of a converying type network system illustraton of model simple in structure in the prior art;
Fig. 2 is the main implementation procedure flow chart that the present invention is based on the route renewing method of converying type network system;
Fig. 3 the present invention is based on the frame format that each node sends to main controlled node in the route renewing method of converying type network system routing update frame can be selected for use;
Fig. 4 is increase node newly in converying type network system after, the principle of compositionality figure of the up route of its newly-increased node;
Fig. 5 is the logical schematic under off-state between two nodes with annexation in the converying type network system.
Fig. 6 the present invention is based on the frame format schematic diagram that chain rupture indication frame adopts in the route renewing method of converying type network system.
Embodiment
Because the topological structure attribute of converying type network system has determined converying type network system to have following network configuration characteristic on networking structure:
(1) each node in the network system can be discerned upstream node and the downstream node of self automatically; And
(2) upstream node of each node has and has only one in the network system, and that its downstream node can have is a plurality of.
The route renewing method that the present invention is based on converying type network system is just according to the intrinsic topological structure of above-mentioned converying type network system, and propose a kind of fast simple and the route renewing method that can avoid the message storm to take place; Be described in further detail below in conjunction with the embodiment of each accompanying drawing the route renewing method that the present invention is based on converying type network system.
See also Fig. 2, this figure is the main implementation procedure flow chart that the present invention is based on the route renewing method of converying type network system; Based on converying type network system, the routing update process that the present invention proposes mainly comprises the steps:
Step S10, each node in the converying type network system send the routing update frame include self node identification to main controlled node; Wherein according to the concrete needs of implementing, each node in the system can be in a periodic manner or periodic manner initiatively send the routing update frame to main controlled node.
See also Fig. 3, this figure the present invention is based on the frame format that each node sends to main controlled node in the route renewing method of converying type network system routing update frame can be selected for use, in the frame structure wherein shown in Figure 3, the frame type territory is used for carrying " routing update frame " type identification information, can use an eight bit to represent this frame type to be the routing update frame as this territory, other nodes identify and judge that drawing this frame is the routing update frame by discerning this binary frame type;
The node identification territory is used to carry the identification information of node, and converying type network system will carry out the whole network Unified coding to each node, uses different 32bit binary numbers to identify each node usually;
The node state territory is used to carry the state information of node, and wherein the state information of node can be enumeration type, comes respectively representation node to reach with different binary numbers usually or state information such as node is unreachable.
But the present invention is not limited to use frame format as shown in Figure 3 here.
Step S20, the routing update frame that each node sends among the step S10 pass through each node in the converying type network system and main controlled node thereof upgrade self successively according to the node identification that comprises in the routing update frame routing table; Wherein each node and main controlled node thereof can be successively upgrade the routing iinformation of respective nodes in self routing table by the node identification that comprises in the record routing update frame.
Above-mentioned its enforcement principle of route renewing method based on converying type network system is as follows:
Because in converying type network system, internodal up route is used fixing routing mode, is provided with when increasing a node newly in the network system once to get final product at every turn; See also Fig. 4, this figure is increase node newly in converying type network system after, the principle of compositionality figure of the up route of its newly-increased node;
Suppose that newly-increased node is node 3 (is Node3, is designated hereinafter simply as node N3) among Fig. 4, the network management personnel only need once be provided with node N3 and get final product, and the upstream node of clear and definite node N3 is node N2; Because the topological structure attribute of converying type network system has determined node N2 and node N1 all to know the upstream node of self respectively, so when node N3 will send control signaling main controlled node, only need at first to control signaling and send to the upstream node N2 of self, control signaling subsequently and can upwards be delivered to main controlled node by node N2 and node N1 step by step.
After the up route of each node is determined in the above-mentioned converying type network system, each node just can be selected for use in a periodic manner or periodic manner initiatively sends the routing update frame that carries self node identification information to main controlled node, network topology structure characteristic just because of converying type network system, determined that each node connects under the normal situation in route between node to the information that main controlled node sends, always can arrive; Therefore the routing update frame just can be respectively according to the node identification information of carrying in the routing update frame along each node of road transmission, in self routing table, note the routing iinformation of respective nodes, upgrade with the routing iinformation of realization, to be used for that Route Selection is carried out in the transmission of follow-up descending control signaling respective nodes.
Structure with converying type network system shown in Figure 4 is an example, supposes that wherein newly-increased node is node N3, if node N3 regularly sends the routing update frame to main controlled node, wherein includes the node identification information of node N3 in the routing update frame that node N3 sends; The upstream node N2 of node N3 receives this routing update frame, just " identification information of node N3 " that wherein comprise is recorded in the routing table of self, and node N2 is transmitted to the routing update frame again the node N1 of upper level more then; The rest may be inferred, and node N1 and main controlled node all can be recorded in " identification information of node N3 " that carry in the routing update frame that receives in the routing table of self, thereby finish the routing update of converying type network system to node N3.
On the basis of above-mentioned routing update strategy, the route renewing method that the present invention is based on converying type network system is also when having two node generation off-states of annexation in the system, other nodes in the network system corresponding processing mode proposed, so that can carry out corresponding routing update at the off-state that takes place between node.Wherein when two in the converying type network system nodes with annexation disconnect it and connect, this generations disconnects upstream node in two nodes that connect and downstream node and has separately processing mode respectively, shows to be described below respectively:
Upstream node (is called for short N here
On) processing mode include but not limited to following two kinds of processing modes:
(A) in the node of each in converying type network system a fixedly duration T is set in advance; When two connected nodes in the network system disconnect, the upstream node N in two nodes of this disconnection
OnTo each node between the main controlled node in the fixedly duration T that sets in advance as receive and do not include this upstream node N
OnThe routing update frame of sign is just deleted this upstream node N that writes down in self routing table automatically
OnSign.This for upstream node N
OnProcessing mode just require the route record in each node in the network system to have ageing, if each node detection is not received corresponding routing update frame to certain bar route record in a period of time, so just think that this route record lost efficacy, and deleted this route record then from the routing table of self.
See also Fig. 5, this figure is the logical schematic under off-state between two nodes with annexation in the converying type network system; Node m in this figure (is upstream node N
On) and node n (be downstream node N
Down) when disconnect connecting, node m just can determine whether having in self routing table the routing iinformation of artis n to delete by detecting fixedly whether receive the routing update frame that carries node n in the duration T to each node between the main controlled node.Wherein the concrete frame structure of routing update frame is no longer too much given unnecessary details here with above-mentioned.
(B) when two connected nodes in the converying type network system disconnect, the upstream node in these two nodes sends the routing update frame that includes the unreachable information of self downstream node to main controlled node;
The routing update frame each node of process and main controlled node thereof successively according to the unreachable information of this downstream node that comprises in the routing update frame, delete this downstream node sign that writes down in self routing table.
Please continue with reference to Fig. 5, when the node m in the converying type network system and node n disconnect when being connected, upstream node m will initiatively send the routing update frame that includes the unreachable routing iinformation of its downstream node n to main controlled node, node m sends the routing update frame in the process of main controlled node like this, the routing update frame each node of process all can be respectively come the routing table information of corresponding renewal self according to the unreachable routing iinformation of node n that comprises in the routing update frame that receives, promptly delete the identification information of this node n in self routing table respectively.Wherein the concrete frame structure of routing update frame is no longer too much given unnecessary details here also with above-mentioned.
And downstream node (is called for short N here
Down) processing mode include but not limited to following three kinds of processing modes:
(a) when two connected nodes in the converying type network system disconnect, the downstream node in these two nodes can abandon the control signaling that self all downstream node is sent; Please continue to consult Fig. 5, disconnect when being connected as node m and node n among the figure, downstream node n can abandon the control signaling that self all downstream node is sent.
(b) when two connected nodes in the converying type network system disconnect, downstream node in these two nodes issues the chain rupture indication frame that includes self node identification and gives all downstream nodes that are connected with self, receives this chain rupture and indicates each node of frame can attempt seeking the upstream node of new node as self; Please continue to consult Fig. 5, disconnect when being connected as node m and node n among the figure, downstream node n can issue the chain rupture indication frame that includes node n identification information to all downstream nodes that are connected with self, after each downstream node that is connected with node n receives this chain rupture indication frame, can learn that node n can not be re-used as the intermediate node that it is connected with main controlled node, attempt seeking upstream node that other nodes are used as self (because the network configuration characteristic of converying type network system is meant the topological property of network in running, and when building network in advance, each node may be connected with a plurality of upstream nodes by transmission cable physically; But network is in practical work process, each node is only and between a upstream node to communicate, in case unique upstream node of certain node is unreachable, this node can be with this message informing to self all first order downstream node, after the first order downstream node of this node receives this notice, can automatic in the upstream node of other connections, choose a node and be used as the upstream node of self).
See also Fig. 6, this figure the present invention is based on the frame format schematic diagram that chain rupture indication frame adopts in the route renewing method of converying type network system; In the frame structure wherein shown in Figure 6, the frame type territory is used for carrying " chain rupture indication frame " type identification information, this territory can use an eight bit to represent that this frame type indicates frame as chain rupture, and other nodes identify and judge that drawing this frame is chain rupture indication frame by discerning this binary frame type;
The node identification territory is used to carry the identification information of node, and converying type network system will carry out the whole network Unified coding to each node, uses different 32bit binary numbers to identify each node usually;
As above routine downstream node n sends in the chain rupture indication frame of all downstream nodes that are connected with self, and what carried in the frame type territory is the type identification information of chain rupture indication frame; What carried in the node identification territory is the node identification information of this downstream node n; The node that ought receive this chain rupture indication frame like this is by frame type identification information and node identification information in this frame of identification, just can get egress n and can not be re-used as the intermediate node that it is connected with main controlled node, need to attempt seeking other nodes and be used as the upstream node of self.But the present invention is not limited to use concrete frame format as shown in Figure 6 here.
(c) when two connected nodes in the converying type network system disconnected, the downstream node in these two nodes was closed the physical connection with self all downstream node, put certainly as island state; Please continue to consult Fig. 5, disconnect when being connected as node m and node n among the figure, downstream node n can close the physical connection with all downstream nodes, makes oneself be in island state in whole network system, break off with network system in any node between communicate by letter.
Above-mentioned when two nodes with annexation take place to disconnect, wherein selected two kinds of processing modes and the three kinds of selected processing modes of downstream node of upstream node can be used in combination arbitrarily.
In sum, as seen the route renewing method that the present invention is based on converying type network system is by simple route learning mechanism, only need the unidirectional transmission routing update frame of each node to handle to carry out routing update to main controlled node, do not carry out the routing update processing and do not need main controlled node to send broadcast frame, therefore can be implemented in and avoided taking place under the situation of message storm in the network system, can make the whole network system can be fast and effectively reach routing update, and when in network system, increasing network node newly, can realize plug and play fast, therefore propose more simple for the routing update mechanism of converying type network system, processing mode easily.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1, a kind of route renewing method based on converying type network system is characterized in that, comprises step:
Each node in the described system sends the routing update frame include self node identification to main controlled node; And
Described routing update frame each node of process and main controlled node thereof upgrade self routing table successively according to the node identification that comprises in the routing update frame.
2, the route renewing method based on converying type network system according to claim 1 is characterized in that, also comprises step:
Fixedly duration is set in each node;
When two connected nodes disconnect, upstream node in these two nodes to each node between the main controlled node in described fixedly duration as receive the routing update frame that does not include this upstream node sign, just delete this upstream node sign that writes down in self routing table.
3, the route renewing method based on converying type network system according to claim 1 is characterized in that, also comprises step:
When two connected nodes disconnected, the upstream node in these two nodes sent the routing update frame that includes the unreachable information of self downstream node to main controlled node;
The routing update frame each node of process and main controlled node thereof successively according to the unreachable information of the node that comprises in the routing update frame, delete this downstream node sign that writes down in self routing table.
4, according to claim 1,2 or 3 described route renewing methods, it is characterized in that, also comprise step based on converying type network system:
When two connected nodes disconnected, the downstream node in these two nodes abandoned the control signaling that self all downstream node is sent; Or
This downstream node issues the chain rupture indication frame that includes self node identification and gives all downstream nodes that are connected with self, and the node trial of receiving this chain rupture indication frame is with the upstream node of other nodes as self;
Or this downstream node closes the physical connection with self all downstream node, puts from as island state.
5, the route renewing method based on converying type network system according to claim 1 is characterized in that, described each node cycle sends the routing update frame to main controlled node.
6, the route renewing method based on converying type network system according to claim 1, it is characterized in that described each node and main controlled node thereof write down the routing iinformation that the node identification that comprises in the routing update frame upgrades respective nodes in self routing table successively.
7, according to claim 1,3 or 5 described route renewing methods, it is characterized in that described routing update frame comprises based on converying type network system:
The frame type territory is used to carry routing update frame type identification information;
The node identification territory is used to carry node identification information; And
The node state territory, the state information that is used to carry node.
8, the route renewing method based on converying type network system according to claim 4 is characterized in that, described chain rupture indication frame comprises:
The frame type territory is used to carry chain rupture indication frame type identification information;
The node identification territory is used to carry node identification information.
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| CNB2004100801631A CN100417110C (en) | 2004-09-24 | 2004-09-24 | Route renewing method based on converying type network system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101136863B (en) * | 2007-10-23 | 2011-05-18 | 深圳市金蝶中间件有限公司 | Routing information generating method, system and message routing method and system |
| CN101771568B (en) * | 2009-12-28 | 2013-03-13 | 国家广播电影电视总局广播电视规划院 | Method, device and system for upgrading Network topological information |
| WO2013123901A1 (en) * | 2012-02-24 | 2013-08-29 | 华为技术有限公司 | Data transmission method, access point, relay node, and data node for packet aggregation |
| CN103309839A (en) * | 2012-01-23 | 2013-09-18 | 辉达公司 | Device topology and capability discovery and reporting techniques |
| CN103685035A (en) * | 2012-09-26 | 2014-03-26 | 深圳市腾讯计算机系统有限公司 | Routing update method, switch and system |
| CN109981468A (en) * | 2019-03-29 | 2019-07-05 | 中国人民银行清算总中心 | Link state maintaining method and device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3622648B2 (en) * | 2000-08-25 | 2005-02-23 | 日本電気株式会社 | Route update method in micro mobility network |
| US6982960B2 (en) * | 2001-03-09 | 2006-01-03 | Motorola, Inc. | Protocol for self-organizing network using a logical spanning tree backbone |
-
2004
- 2004-09-24 CN CNB2004100801631A patent/CN100417110C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101136863B (en) * | 2007-10-23 | 2011-05-18 | 深圳市金蝶中间件有限公司 | Routing information generating method, system and message routing method and system |
| CN101771568B (en) * | 2009-12-28 | 2013-03-13 | 国家广播电影电视总局广播电视规划院 | Method, device and system for upgrading Network topological information |
| CN103309839A (en) * | 2012-01-23 | 2013-09-18 | 辉达公司 | Device topology and capability discovery and reporting techniques |
| WO2013123901A1 (en) * | 2012-02-24 | 2013-08-29 | 华为技术有限公司 | Data transmission method, access point, relay node, and data node for packet aggregation |
| US9843961B2 (en) | 2012-02-24 | 2017-12-12 | Huawei Technologies Co., Ltd. | Data transmission method, access point, relay node, and data node for packet aggregation |
| CN103685035A (en) * | 2012-09-26 | 2014-03-26 | 深圳市腾讯计算机系统有限公司 | Routing update method, switch and system |
| CN103685035B (en) * | 2012-09-26 | 2018-04-27 | 深圳市腾讯计算机系统有限公司 | Route renewing method, interchanger and system |
| CN109981468A (en) * | 2019-03-29 | 2019-07-05 | 中国人民银行清算总中心 | Link state maintaining method and device |
| CN109981468B (en) * | 2019-03-29 | 2022-05-03 | 中国人民银行清算总中心 | Link state maintenance method and device |
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| Publication number | Publication date |
|---|---|
| CN100417110C (en) | 2008-09-03 |
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