CN1984499A - Method for automatically exchanging optical network node access - Google Patents
Method for automatically exchanging optical network node access Download PDFInfo
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- CN1984499A CN1984499A CN 200610060691 CN200610060691A CN1984499A CN 1984499 A CN1984499 A CN 1984499A CN 200610060691 CN200610060691 CN 200610060691 CN 200610060691 A CN200610060691 A CN 200610060691A CN 1984499 A CN1984499 A CN 1984499A
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Abstract
The method comprises: configuring node ID and node IP address for each node, and building mapping relation between the node ID and the node IP address; releasing the mapping relation between the node IP and the node IP address to make other nodes get the mapping relation and save the IP relation; when visiting other nodes, using the mapping relation between the node ID and node IP address maintained by current node to switch the node ID into the node IP address to visit. The invention overcomes the issue existed in current ASON network, which is when modifying control plane IP address, the original service will be influenced.
Description
Technical field
The present invention relates to the Automatic Switched Optical Network Technology field, relate in particular to the node visit method in a kind of ASON.
Background technology
ASON (ASON) is exactly to have increased a control plane on conventional optical network, and proposes the notion that exchange connects.The node of optical-fiber network at first obtains the annexation of this network element and other Optical NE by the discovery technique of link part, issue its node and Link State by control plane again, and the state publications of other network element in the reception network, final each Optical NE all has a accurately " network map " of topology of network of describing, and comprises multiple information such as node, link, resource in " network map ".
When node was connected by customer equipment or system administration request, the information of node utilization " network map " obtained a feasible path in conjunction with certain routing algorithm, and the node that drives on the path by signaling protocol is set up interconnection again.Connect dynamically at network and to set up, to remove or fault causes that respective nodes will in time be issued node, the link-state information of renewal when link circuit resource changes, realize the synchronous again of " network map ".
For realize information such as node, link in network synchronously and between the node message send, control plane is the Routing Protocol (OSPF OSPF, router and router communication agreement IS-IS) and other Optical NE exchange link-state information by the operation standard, sets up LSD and maintaining routing list information.The LSP that sets up in network (label switched path) adopts node identification to identify, and uses node identification to be used as the destination address that message sends between the node.
Because node identification has double attribute, both identification nodes was used as the control plane address again, therefore to the modification of control plane address, also have influence on simultaneously the sign of original node, and the LSP that sets up adopts node identification to identify, thereby also can influence the LSP business of having set up.The business that will cause having set up to the modification of control plane IP address can't be managed like this, causes service disconnection.
Prior art all can adopt a node identification to identify to each network element in the ASON network, and each node identification must be unique in same ASON network, because node identification is the important identification parameter of every LSP in the ASON network.Simultaneously, node identification also is a routable address, and promptly both identification nodes of node identification can be used as the IP address again and directly conduct interviews between different nodes, promptly is used as control plane IP address, and therefore, a node identification has double attribute.Be illustrated in figure 1 as LSP and set up structural representation, establish a professional LSP1 from node A to node D, wherein, the node identification of node A, B, C, D as shown in Figure 1.When between node A and Node B, communicating by letter, such as sending a piece of news to Node B from node A, what fill at the destination address of message packet is the node identification of Node B, i.e. 172.16.1.2, and what the destination address of the message that promptly sends between node was filled in all is node identification.
The shortcoming of prior art is:
In the ASON network, because node identification has double attribute, existing node identification, but routing property is arranged again.And in one network, modification to control plane IP address is more frequent, if revise control plane IP address, promptly revised node identification, so originally, just it doesn't matter with amended node identification to identify LSP information, to cause LSP to be managed, and have a strong impact on original business, this situation is intolerable to common modification IP address.
Summary of the invention
Technical problem to be solved by this invention is: the node identification that overcomes in the prior art ASON network has double attribute, when revising control plane IP address, shortcoming with the original business of influence, node visit in a kind of ASON method is provided, when making the IP address of revising control plane, do not influence original business.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
Node visit method in this ASON may further comprise the steps:
A, to each node configuration node identification and node IP address, and node identification and node IP address set up mapping relations;
B, node identification and node IP address mapping relations are spread, make other node all obtain these mapping relations, and mapping relations are preserved;
C, when other node is conducted interviews, node identification and the node IP address mapping relations of utilizing this node to safeguard are converted to corresponding node IP address with node identification and conduct interviews.
Among the described step B, the mapping relations of being set up can be filled in the routing protocol packet, message be spread, make other node receive this mapping relations by the route protocol flooding function.
Among the described step C, when node sent message, the node identification and the IP address mapping relation that use this node to preserve extended this as the pairing node IP address of the node identification of next node in the transmit path with the destination address of this message.
When revising the node IP address of node, this node identification and IP address mapping relation can be spread to other node again, after other node obtains, upgrade local stored information.
Node visit method in corresponding a kind of ASON may further comprise the steps:
A, to each node configuration application program identification and node IP address, and application programs sign and node IP address are set up mapping relations;
B, application programs sign and node IP address mapping relations spread, and make other node all obtain these mapping relations, and mapping relations are preserved;
C, when other node application program is conducted interviews, application program identification and the node IP address mapping relations of utilizing this node to safeguard are converted to corresponding node IP address with application program identification and conduct interviews.
Among the described step B, the mapping relations of being set up can be filled in the routing protocol packet, message be spread, make other node receive this mapping relations by the route protocol flooding function.
Among the described step C, when the transmission message conducts interviews between the node application program, the application program identification and the IP address mapping relation that can use this node to preserve extend this as the pairing node IP address of the application program identification of next node in the transmit path with the destination address of this message.
When revising the node IP address of node, this application program identification and IP address mapping relation can be spread to other node again, after other node obtains, upgrade local stored information.
Beneficial effect of the present invention is: the invention solves that node identification and IP address bundle in the ASON network, cause after setting up LSP, can not on-the-fly modify the problem of the IP address of control plane, by peeling off the double attribute of node identification, in ASON is used, set up the mapping relations of node identification and node IP address, perhaps set up the mapping relations of application program identification and node IP address, like this, on-the-fly modify node IP address and do not influence newly-built LSP and the original LSP that sets up, can original business not impacted, can not influence the normal function of application program yet.
Description of drawings
Fig. 1 sets up structural representation for prior art LSP;
Fig. 2 sets up the structural representation of LSP for the present invention utilizes node identification and IP map addresses;
Fig. 3 is a node visit flow chart of the present invention.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
When node identification not only identification service ID but also identification nodes IP address, if revise node IP address, the traffic ID sign can influence business also along with change so.Consider above-mentioned shortcoming, the present invention, can revise node IP address easily, and not influence the business that has existed by mapping node sign and control plane address relationship each node configuration node identification and control plane address (being node IP address).
As shown in Figure 2, the present invention is to node A configuration node sign 1.1.1.1 and control plane address 172.16.1.1, and other node is similar.Each node is set up mapping relations to node identification and control plane address, can define with structure such as the one from node identification to the control plane address.Then to the definition node identification and the IP address relationship at routing protocol packet (such as OSPF-TELSA, promptly Open Shortest Path First a flow engineering LSA message) in, utilize Routing Protocol inundation function in network, other node can obtain this message, again to the node identification in the message and IP address mapping relation in local storage administration.Each node all repeats preceding step, and then A, B, C, D node all have the mapping relations of the whole network node identification and control plane IP address among Fig. 2.
Like this, set up a business if desired from node A (ID:1.1.1.1) to node D (ID:1.1.1.4), such as calculating path is A-B-D, then node A is when Node B sends message, with node identification and the IP address mapping relation that uses this node to preserve, the destination address of this message is extended this as the corresponding IP address 172.16.1.2 of Node B (ID:1.1.1.2), and same Node B and node D finish the communication between them, and LSP (label switched path) sets up the most at last.After, can on-the-fly modify the control plane address of node, address such as node D is made 172.16.1.8 into from 172.16.1.4, as long as node D with this node identification and IP address mapping relation again to other node inundation, after other node obtains message, upgrade local stored information and get final product, to the professional not influence of existing LSP.
As shown in Figure 3, the present invention mainly comprises following several steps:
1, reads node identification and node IP address;
2, set up node identification and node IP address mapping relations;
3, the mapping relations to setting up in the step 2 are filled in the routing protocol packet, and are designated the mapping relations of node identification and node IP address;
4, by Routing Protocol (as OSPF-TE) inundation function, the message in the step 3 is carried out inundation, by inundation, each node all will be received this message.
5, receive in the step 4 message that sends after, the node identification of filling in the extraction step 3 and the mapping relations of node IP address, and preserve and manage at this node;
6, to the visit of other node identification, need to use node identification and the node IP address mapping relations that this node is safeguarded in the step 5, node identification is converted to corresponding node IP address conducts interviews;
7, to after the node IP address modification, need re-execute step 1 to step 5.
The present invention can by setting up the mapping relations of node identification and node IP address, can revise node IP address easily in ASON is used, do not influence the function between the node, and do not influence the LSP business on the node.
For application program, such as TL1 (full name Transaction Language 1, be a kind of interactive language, carry out syntactic description by Bellcore GR-831-CORE suggestion) adopt TID (TargetIdentfier, i.e. purpose sign) to represent to import the destination that message will send in the interface, and TID is the TL1 identifier, the longest is 20 characters, and itself does not represent the IP address, like this, conduct interviews by application program identification, when revising the IP address, can influence the normal function of application program.The present invention equally also can set up the relation of application program identification and node IP address, and by Routing Protocol with this application program identification and node IP address mapping relations to other node inundation, after other node obtains mapping relations, upgrade local stored information.When conducting interviews between the application program, the application program identification that message is sent the destination is converted to corresponding node IP address and conducts interviews.Like this, with the IP address relationship, solved the problem that when revising the IP address, influences the application program normal function by the mapping application program identification.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalence that all utilizations specification of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (8)
1, node visit method in a kind of ASON is characterized in that, may further comprise the steps:
A, to each node configuration node identification and node IP address, and node identification and node IP address set up mapping relations;
B, node identification and node IP address mapping relations are spread, make other node all obtain these mapping relations, and mapping relations are preserved;
C, when other node is conducted interviews, node identification and the node IP address mapping relations of utilizing this node to safeguard are converted to corresponding node IP address with node identification and conduct interviews.
2, node visit method in the ASON according to claim 1, it is characterized in that: among the described step B, the mapping relations of being set up are filled in the routing protocol packet, message are spread, make other node receive this mapping relations by the route protocol flooding function.
3, node visit method in the ASON according to claim 1, it is characterized in that: among the described step C, when node sends message, the node identification and the IP address mapping relation that use this node to preserve extend this as the pairing node IP address of the node identification of next node in the transmit path with the destination address of this message.
4, according to node visit method in claim 1, the 2 or 3 described ASONs, it is characterized in that: when revising the node IP address of node, this node identification and IP address mapping relation are spread to other node again, after other node obtains, upgrade local stored information.
5, node visit method in a kind of ASON is characterized in that, may further comprise the steps:
A, to each node configuration application program identification and node IP address, and application programs sign and node IP address are set up mapping relations;
B, application programs sign and node IP address mapping relations spread, and make other node all obtain these mapping relations, and mapping relations are preserved;
C, when other node application program is conducted interviews, application program identification and the node IP address mapping relations of utilizing this node to safeguard are converted to corresponding node IP address with application program identification and conduct interviews.
6, node visit method in the ASON according to claim 5, it is characterized in that: among the described step B, the mapping relations of being set up are filled in the routing protocol packet, message are spread, make other node receive this mapping relations by the route protocol flooding function.
7, node visit method in the ASON according to claim 5, it is characterized in that: among the described step C, when the transmission message conducts interviews between the node application program, the application program identification and the IP address mapping relation that use this node to preserve extend this as the pairing node IP address of the application program identification of next node in the transmit path with the destination address of this message.
8, according to node visit method in claim 5, the 6 or 7 described ASONs, it is characterized in that: when revising the node IP address of node, this application program identification and IP address mapping relation are spread to other node again, after other node obtains, upgrade local stored information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610060691 CN1984499A (en) | 2006-05-11 | 2006-05-11 | Method for automatically exchanging optical network node access |
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| CN 200610060691 CN1984499A (en) | 2006-05-11 | 2006-05-11 | Method for automatically exchanging optical network node access |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152446A (en) * | 2013-04-07 | 2013-06-12 | 浙江中控技术股份有限公司 | Realization method and system of field bus as well as equipment managing server |
| WO2015135425A1 (en) * | 2014-03-11 | 2015-09-17 | 华为技术有限公司 | Message processing method, access controller and network node |
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2006
- 2006-05-11 CN CN 200610060691 patent/CN1984499A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152446A (en) * | 2013-04-07 | 2013-06-12 | 浙江中控技术股份有限公司 | Realization method and system of field bus as well as equipment managing server |
| CN103152446B (en) * | 2013-04-07 | 2016-06-29 | 浙江中控技术股份有限公司 | A kind of method that realizes of fieldbus, device management server and system |
| WO2015135425A1 (en) * | 2014-03-11 | 2015-09-17 | 华为技术有限公司 | Message processing method, access controller and network node |
| US10530744B2 (en) | 2014-03-11 | 2020-01-07 | Huawei Technologies Co., Ltd. | Message processing method, access controller, and network node |
| US11665134B2 (en) | 2014-03-11 | 2023-05-30 | Huawei Technologies Co., Ltd. | Message processing method, access controller, and network node |
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Open date: 20070620 |