CN111181830A - TX increment calculation method and system based on network management L3vpn service - Google Patents
TX increment calculation method and system based on network management L3vpn service Download PDFInfo
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- CN111181830A CN111181830A CN202010007925.4A CN202010007925A CN111181830A CN 111181830 A CN111181830 A CN 111181830A CN 202010007925 A CN202010007925 A CN 202010007925A CN 111181830 A CN111181830 A CN 111181830A
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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]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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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]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/70—Routing based on monitoring results
Abstract
The invention discloses a TX increment calculation method and a TX increment calculation system based on a network management L3vpn service, which relate to the technical field of network management service management and comprise the following steps: s1, when the user carries out modification operation on the L3vpn, calculating the node and the corresponding tunnel set affected by the operation; s2, an affected node is selected, and all relevant TX routing information related to the affected node and the corresponding tunnel is calculated; s3, comparing the affected nodes before and after operation with the obtained TX routing information corresponding to the tunnel, and obtaining the TX routing which is newly added or deleted. The TX increment calculation method and the TX increment calculation system based on the network management L3vpn service can only calculate TX of an affected node when the L3vpn is modified, so that the operation calculation process is unified, simplified and easy to expand, and requirements required by users are met.
Description
Technical Field
The invention relates to the technical field of network management service management, in particular to a TX increment calculation method and a TX increment calculation system based on a network management L3vpn service.
Background
With the rapid development of telecommunication services, the scale of a transmission Network is continuously enlarged, the demand of L3vpn (Lay3 virtual private Network, three-layer virtual private Network) is increasingly large, the existing information structure of the Network is shown in fig. 1, and the operation is increasingly performed for modifying L3vpn service scenes, so that the requirement for the Network manager to quickly and accurately calculate the TX (transport) route of L3vpn is increasingly high. In practical application, because L3vpn service modification scenarios are more, and there is no unified flow, and the TX calculation method is more complex. At present, a full-quantity calculation method is adopted, so that the influence range is wide; engineering applications want to be able to modify some of the parameters to compute only the affected nodes and do not want to recalculate all the nodes. Therefore, in response to the above requirements, the following problems are mainly faced at present:
1) currently, the network management adopts a full calculation method for the TX route of the L3 vpn; and then, comparing and calculating to delete and add TX routes according to the difference between TX of all nodes. Because there may be thousands of TXs for one L3vpn, the calculation efficiency of the TX route is greatly affected, and the engineering deployed services are also affected to some extent. The efficiency is low, and the requirement of a user cannot be met.
2) The method has the following advantages that the number of TX route triggering calculation scenes is large, the range of affected nodes is different, and no unified calculation rule exists: in practical use, L3vpn operation scenarios are many, for example, modifying a call, modifying a static route, adding \ deleting a PE (provider edge), adding \ deleting a Tunnel, and the like all affect TX recalculation, and it is difficult for those skilled in the art to unify TX calculation flows of all scenarios because affected nodes are different.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a TX increment calculation method and a TX increment calculation system based on a network management L3vpn service, which only calculate TX of an affected node when the L3vpn is modified, so that the operation calculation process method is unified, simplified and easy to expand, and the requirements required by users are better met.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a TX increment calculation method based on network management L3vpn service comprises the following steps:
s1, when the L3vpn is modified, calculating nodes and corresponding tunnel sets affected by the modification; s2, sequentially selecting each affected node in the set, and calculating all relevant TX routing information related to the affected nodes and the corresponding tunnels; s3, comparing the affected nodes before and after operation and all TX route information corresponding to the tunnel, and obtaining the TX route newly added or deleted.
On the basis of the above technical solution, the step S1 includes:
when the L3vpn is modified, calculating an opposite node corresponding to the operation node, an opposite end of the opposite node and a corresponding tunnel, and establishing an affected node and tunnel set; collecting the operation node, the opposite end node corresponding to the operation node, the opposite end of the opposite end node, and a direct connection tunnel and a transfer tunnel related to the related node; and adding the nodes involved on the direct connection tunnel and the transit tunnel involved by the related nodes into the affected nodes and the affected tunnel set.
On the basis of the above technical solution, the step S1 includes:
calculating an opposite end node corresponding to the operation node according to the tunnel of the operation node; establishing an affected node and tunnel set, calculating the tunnel connected with the opposite node and the node, and adding the opposite node and the tunnel into the set; recording the opposite end node as a set for calculating the influence of the transit tunnel on other nodes; acquiring an opposite end of the opposite end node and a tunnel set connected with the node according to the opposite end node; judging whether the obtained opposite end of the opposite end node is an operation node or not, if not, continuing the next step; otherwise, calculating the next affected node; judging whether a direct connection tunnel exists between an opposite end of the opposite end node and the operation node, and if the direct connection tunnel exists, continuing the next step; otherwise, calculating the next affected node; judging whether the opposite end of the opposite end node and the corresponding tunnel are transit tunnels, if so, continuing the next step; otherwise, calculating the next affected node; and adding the affected nodes calculated by the transit tunnel into the affected nodes and the tunnel set.
On the basis of the above technical solution, the step S2 includes:
s21, sequentially selecting each affected node and a corresponding tunnel in the set to acquire the IP information of the opposite node;
s22, establishing a TX route set, and calculating a TX route to be added into the TX route set according to the IP information of the opposite end node and the corresponding tunnel;
s23, according to the affected node, the opposite node, and the opposite node, calculating the TX route to add into the TX route set.
On the basis of the above technical solution, the step S21 includes:
taking out an affected node PE and a corresponding tunnel from the operation affected node and the corresponding tunnel set; acquiring an IP address of an opposite node and an output interface of a current node according to the affected node and the corresponding tunnel; and acquiring target IP information comprising a UNI interface main/standby IP, a static route IP and a mask through the opposite end node.
On the basis of the above technical solution, the step S22 includes:
calculating a TX route to be added into a TX route set by a direct connection tunnel calculation method according to the information of the opposite end node; judging whether the tunnel corresponding to the affected node is a transfer tunnel, if so, continuing the next step; otherwise, go to step S3; judging whether the affected node and the opposite end of the opposite end node have a direct connection tunnel, if not, turning to the step S23; otherwise, go to step S3.
On the basis of the above technical solution, the step S3 includes:
obtaining a TX route related to an opposite-end network element of the tunnel before the affected node calculates; if the newly calculated TX route does not exist in the old TX route set, the newly calculated TX route is taken as a newly added TX route; if the old TX route does not exist in the newly calculated TX route set, the old TX route is taken as the deleted TX route.
The invention also provides a TX increment computing system based on the network management L3vpn service, which comprises the following steps:
the multi-service configuration service module is used for calculating nodes and corresponding tunnel sets influenced by the operation when the L3vpn is modified; sequentially selecting affected nodes, and calculating all related TX routing information related to the affected nodes and the corresponding tunnels;
and the network element service management service module is used for comparing the affected nodes before and after the operation with the obtained TX routing information corresponding to the tunnel to obtain the TX routing which is newly added or deleted in the operation.
On the basis of the technical scheme, the multi-service configuration service module is further configured to calculate an opposite end node corresponding to the operation node, an opposite end of the opposite end node, and a corresponding tunnel, when performing a modification operation on the L3vpn, to establish an affected node and tunnel set; collecting the operation node, the opposite end node corresponding to the operation node, the opposite end of the opposite end node and a direct connection tunnel and a transit tunnel related to the related node; and adding the nodes involved on the direct connection tunnel and the transit tunnel involved by the related nodes into the affected nodes and the tunnel set.
On the basis of the technical scheme, the multi-service configuration service module is further used for sequentially selecting the affected nodes and the corresponding tunnels and acquiring the IP information of the opposite end node; establishing a TX route set, and calculating a TX route to be added into the TX route set according to the IP information of the opposite end node and the corresponding tunnel; and calculating the TX route to be added into the TX route set according to the calculation method of the affected node, the opposite node and the opposite end of the opposite node according to the transfer route.
Compared with the prior art, the invention has the advantages that:
(1) the TX increment calculation method based on the network management L3vpn service is characterized in that the TX calculation route of the L3vpn is modified at present, and the TX increment calculation method of the L3vpn is realized, namely only TX of an affected node is calculated when the L3vpn is modified, and no processing is performed on TX without the affected node, so that the operation calculation flow method is simplified and easy to expand; meanwhile, the influence on the issuing of the engineering data can be minimized, and the stability of the service can be protected.
(2) In the TX increment calculation method based on the network management L3vpn service, the modification of the L3vpn service is abstracted, the logics of different modified scenes are unified, a set of processing flow with the same rule is formed, the program logic is clearer, and the method is more suitable for the expansion of the subsequent scenes.
Drawings
FIG. 1 is a schematic diagram of L3vpn structure information in an embodiment of the present invention;
FIG. 2 is a data flow diagram in an embodiment of the invention;
FIG. 3 is a flowchart of step S1 according to an embodiment of the present invention;
FIG. 4 is a flowchart of step S2 in an embodiment of the present invention;
FIG. 5 is a flowchart of step S3 in an embodiment of the present invention;
fig. 6 is a diagram of the overall system architecture in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, an embodiment of the present invention provides a TX increment calculation method based on a network management L3vpn service, where the method includes the following steps:
s1, when the L3vpn is modified, calculating nodes and corresponding tunnel sets affected by the modification;
s2, sequentially selecting each affected node, and calculating all relevant TX routing information related to the affected node and the corresponding tunnel;
s3, comparing the affected nodes before and after operation with the obtained TX route information corresponding to the tunnel, and obtaining the TX route needing to be added or deleted.
In one embodiment, the step S1 may include:
when a user carries out modification operation on L3vpn, calculating an opposite end node corresponding to the operation node, an opposite end of the opposite end node and a corresponding tunnel to establish an affected node and tunnel set; collecting the operation node, the opposite end node corresponding to the operation node, the opposite end of the opposite end node and a direct connection tunnel and a transit tunnel related to the related node; and traversing the direct connection tunnels and the transit tunnels related to all the related nodes, and adding the related nodes on all the related tunnels into the previously established influenced node and tunnel set.
Further, the step S1 may include:
calculating an opposite end node corresponding to the operation node according to the tunnel of the operation node; establishing an affected node and a tunnel set, and calculating all tunnels related to the node of the opposite node to be added into the set; recording the opposite end node as a set for calculating a transfer tunnel to influence other nodes, and acquiring the opposite end of the opposite end node and a corresponding tunnel set according to the opposite end node; judging whether the obtained opposite end of the opposite end node is an operation node or not, if not, continuing the next step; otherwise, calculating the next affected node; judging whether a direct connection tunnel exists between the opposite end of the opposite end node and the operation node, and if the direct connection tunnel exists, continuing the next step; otherwise, calculating the next affected node; judging whether the opposite end of the opposite end node and the corresponding tunnel are transit tunnels or not, and if so, continuing the next step; otherwise, calculating the next affected node; and calculating the affected nodes according to the transit tunnel and adding the affected nodes into the affected node set.
In one embodiment, the step S2 includes:
taking an affected node and a corresponding tunnel, and acquiring IP information of an opposite end node; establishing a TX route set, and calculating a TX route to be added into the TX route set according to the IP information of the opposite end node and the corresponding tunnel; and calculating the TX route to be added into the TX route set according to the calculation method of the affected node, the opposite node and the opposite end-to-end relay route of the opposite node.
Specifically, the step S2 may include:
taking out an affected node PE and a corresponding tunnel from the operation affected node and the corresponding tunnel set; acquiring the IP address of the opposite node and the output interface of the current node according to the affected node and all tunnels connected with the node; acquiring target IP information comprising UNI interface main/standby IPs, static route IPs and masks through an opposite end node; calculating a TX route to be added into a TX route set according to the information of the opposite end node by a direct tunnel calculation method; judging whether the tunnel corresponding to the affected node is a transfer tunnel, if so, continuing the next step; otherwise, go to step S3; judging whether the opposite ends of the affected node and the opposite end node have a direct connection tunnel or not, if not, continuing the next step; otherwise, go to step S3; and calculating the TX route according to the calculation method of the affected node, the opposite node and the opposite end of the opposite node according to the transit route, and adding the TX route into the TX route set of the affected node.
In a specific embodiment, the step S3 may include:
obtaining a TX route related to an opposite-end network element of the tunnel before the affected node calculates; if the newly calculated TX route does not exist in the old TX route set, the newly calculated TX route is taken as a newly added TX route; if the old TX route does not exist in the newly calculated TX route set, then the old TX route is taken as a deleted TX route
In a preferred embodiment, step S3 is followed by: and S4, repeating the steps S2-S3 until all the affected PE nodes and the tunnel calculation are completed.
As shown in fig. 2 to 6, the present invention will be described in detail below by an embodiment:
s1, the multi-service configuration service module calculates the affected node Pe and the corresponding tunnel set through user modification operation;
s1.1, calculating a corresponding opposite end node (PeerPe) according to a set of tunnels of an operation node;
s1.2, calculating the affected direct connection node and the corresponding tunnel as affected PE nodes to be added into a set;
s1.3, recording the affected nodes (directly connected opposite end nodes) as a set of other nodes affected by the transit tunnel in calculation;
s1.4, acquiring an opposite end (PeerPeerPe) of the opposite end node of the opposite end and a corresponding tunnel set according to the opposite end node (PeerPe);
s1.5, judging whether an opposite end (PeerPeerPe) of the opposite end node is an operation node (Pe). If the operation node is not the operation node, continuing the next step; otherwise, calculating the next affected node;
s1.6, judging whether a direct tunnel exists between an opposite end (PeerPeerPe) of an opposite end node and an operation node (Pe). If the tunnel is directly connected, continuing the next step; otherwise, calculating the next affected node;
s1.7, judging whether an opposite end (PeerPeerPe) of an opposite end node and a corresponding tunnel are transit tunnels. If the tunnel is a transit tunnel, continuing the next step; otherwise, calculating the next affected node;
s1.8, calculating affected nodes according to the transit tunnel and adding the affected nodes into the affected node set;
s2, the multi-service configuration service module calculates all relevant TX routing information through the affected nodes and the corresponding tunnels
S2.1, extracting one affected node PE in the S1 result and all tunnels connected with the node;
s2.2, acquiring the IP address of the opposite end node (PeerPe) and the output interface of the current node according to the affected node and the corresponding tunnel;
s2.3, acquiring target IP information (including UNI interface main/standby IP, static route IP and mask) through a peer node (PeerPe);
s2.4, calculating a TX route according to the information of the opposite end node through a direct tunnel calculation method and adding the TX route into a TX route set;
and S2.5, judging whether the tunnel corresponding to the affected node PE is a transit tunnel. If the tunnel is a transit tunnel, continuing to the next step S2.6; otherwise, go to step S3;
s2.6, judging whether the affected node PE and an opposite end node (PeerPeerPe) of the opposite end have a direct connection tunnel. If no direct connection tunnel exists, continuing to the next step S2.7; otherwise, go to step S3;
s2.7, calculating a TX route according to a calculation method of the affected node PE, an opposite end node PeerPe and an opposite end node (PeerPe) of an opposite end according to a transit route, and adding the TX route into a TX route set of the affected node;
s3, network element service management service module compares the former data according to the affected node and all TX routes corresponding to the tunnel;
s3.1, firstly, acquiring a TX route related to an opposite end network element of the tunnel before the affected node calculates;
s3.2, if the newly calculated TX route does not exist in the old TX route set, the newly calculated TX route is taken as the newly added TX route;
s3.3, if the old TX route does not exist in the newly-calculated TX route set, the old TX route is used as a deleted TX route;
s4, repeating the processes of S2-S3 until all the affected PE nodes and tunnels are calculated;
as shown in fig. 6, the present invention further provides a TX increment computing system based on the network management L3vpn service, which includes:
the multi-service configuration service module is used for calculating nodes and corresponding tunnel sets influenced by the operation when a user carries out modification operation on the L3 vpn; sequentially selecting affected nodes, and calculating all related TX routing information related to the affected nodes and the corresponding tunnels;
and the network element service management service module is used for comparing the affected nodes before and after the operation with the obtained TX routing information corresponding to the tunnel to obtain the TX routing which is newly added or deleted in the operation.
In one embodiment, the multi-service configuration service module is further configured to calculate, when a user performs a modification operation on L3vpn, an opposite end node corresponding to the operation node, an opposite end of the opposite end node, and a corresponding tunnel, to establish an affected node and tunnel set; collecting the operation node, the opposite end node corresponding to the operation node, the opposite end of the opposite end node and a direct connection tunnel and a transit tunnel related to the related node; and adding the nodes involved on the direct connection tunnel and the transit tunnel involved by the related nodes into the affected nodes and the tunnel set.
In another embodiment, the multi-service configuration service module is further configured to sequentially select an affected node and a corresponding tunnel, and acquire IP information of an opposite end node; establishing a TX route set, and calculating a TX route to be added into the TX route set according to the IP information of the opposite end node and the corresponding tunnel; and calculating the TX route to be added into the TX route set according to the calculation method of the affected node, the opposite node and the opposite end of the opposite node according to the transfer route.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. A TX increment calculation method based on network management L3vpn service is characterized by comprising the following steps:
s1, when the L3vpn is modified, calculating nodes and corresponding tunnel sets affected by the modification;
s2, sequentially selecting each affected node in the set, and calculating all relevant TX routing information related to the affected nodes and the corresponding tunnels;
s3, comparing the affected nodes before and after operation and all TX route information corresponding to the tunnel, and obtaining the TX route newly added or deleted.
2. A TX delta calculation method based on the network management L3vpn service according to claim 1, wherein the step S1 includes:
when the L3vpn is modified, calculating an opposite end node corresponding to the operation node, an opposite end of the opposite end node and a corresponding tunnel, and establishing an affected node and tunnel set;
collecting the operation node, the opposite end node corresponding to the operation node, the opposite end of the opposite end node, and a direct connection tunnel and a transfer tunnel related to the related node;
and adding the direct connection tunnel related to the related node and the node related to the transit tunnel into the affected node and tunnel set.
3. A TX delta calculation method based on the network management L3vpn service according to claim 1, wherein the step S1 includes:
calculating an opposite end node corresponding to the operation node according to the tunnel of the operation node;
establishing an affected node and tunnel set, calculating the tunnel connected with the opposite node and the node, and adding the opposite node and the tunnel into the set;
recording the opposite end node as a set for calculating the influence of the transit tunnel on other nodes;
acquiring the opposite end of the opposite end node and a tunnel set connected with the node according to the opposite end node;
judging whether the obtained opposite end of the opposite end node is an operation node or not, if not, continuing the next step; otherwise, calculating the next affected node;
judging whether a direct connection tunnel exists between an opposite end of the opposite end node and the operation node, and if the direct connection tunnel exists, continuing the next step; otherwise, calculating the next affected node;
judging whether the opposite end of the opposite end node and the corresponding tunnel are transit tunnels or not, if so, continuing the next step; otherwise, calculating the next affected node;
and adding the affected nodes calculated by the transit tunnel into the affected nodes and the tunnel set.
4. A TX delta calculation method based on the network management L3vpn service according to claim 1, wherein the step S2 includes:
s21, sequentially selecting each affected node and a corresponding tunnel in the set to acquire IP information of the opposite end node;
s22, establishing a TX route set, and calculating a TX route to be added into the TX route set according to the IP information of the opposite end node and the corresponding tunnel;
s23, according to the affected node, the opposite node, and the opposite node, calculating the TX route to add into the TX route set.
5. A TX incremental computation method based on network management L3vpn service according to claim 4, wherein the step S21 includes:
taking out an affected node PE and a corresponding tunnel from the operation affected node and the corresponding tunnel set;
acquiring an IP address of an opposite node and an output interface of a current node according to the affected node and the corresponding tunnel;
and acquiring target IP information comprising a UNI interface main/standby IP, a static route IP and a mask through the opposite end node.
6. A TX incremental computation method based on network management L3vpn service according to claim 4, wherein the step S22 includes:
according to the information of the opposite end node, calculating a TX route to be added into a TX route set by a direct connection tunnel calculation method;
judging whether the tunnel corresponding to the affected node is a transfer tunnel, if so, continuing the next step; otherwise, go to step S3;
judging whether the affected node and the opposite end of the opposite end node have a direct connection tunnel, if not, turning to the step S23; otherwise, go to step S3.
7. A TX delta calculation method based on the network management L3vpn service according to claim 1, wherein the step S3 includes:
obtaining a TX route related to an opposite-end network element of the tunnel before the affected node calculates;
if the newly calculated TX route does not exist in the old TX route set, the newly calculated TX route is taken as a newly added TX route;
if the old TX route does not exist in the newly calculated TX route set, the old TX route is taken as the deleted TX route.
8. A TX increment computing system based on network management L3vpn service is characterized by comprising:
the multi-service configuration service module is used for calculating nodes and corresponding tunnel sets influenced by the operation when the L3vpn is modified; sequentially selecting affected nodes, and calculating all related TX routing information related to the affected nodes and the corresponding tunnels;
and the network element service management service module is used for comparing the affected nodes before and after the operation with the obtained TX routing information corresponding to the tunnel to obtain the TX routing which is newly added or deleted in the operation.
9. A TX delta computation system based on a webmaster L3vpn service according to claim 8, characterized in that: the multi-service configuration service module is further used for calculating an opposite end node corresponding to the operation node, an opposite end of the opposite end node and a corresponding tunnel to establish an affected node and tunnel set when the L3vpn is modified; collecting the operation node, the opposite end node corresponding to the operation node, the opposite end of the opposite end node and a direct connection tunnel and a transfer tunnel related to the related node; and adding the nodes involved on the direct connection tunnel and the transit tunnel involved by the related node into the affected node and tunnel set.
10. A TX delta computation system based on a webmaster L3vpn service according to claim 8, characterized in that:
the multi-service configuration service module is also used for sequentially selecting the affected nodes and the corresponding tunnels and acquiring the IP information of the opposite end node; establishing a TX route set, and calculating a TX route to be added into the TX route set according to the IP information of the opposite end node and the corresponding tunnel; and calculating the TX route to be added into the TX route set according to the calculation method of the affected node, the opposite node and the opposite end of the opposite node according to the transfer route.
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