CN113014489B - Data forwarding method and device, server and storage medium - Google Patents

Data forwarding method and device, server and storage medium Download PDF

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CN113014489B
CN113014489B CN202011641015.8A CN202011641015A CN113014489B CN 113014489 B CN113014489 B CN 113014489B CN 202011641015 A CN202011641015 A CN 202011641015A CN 113014489 B CN113014489 B CN 113014489B
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forwarding
instance node
routing
routing table
data
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CN113014489A (en
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李海光
陈建永
杨洋
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Tencent Technology Shenzhen Co Ltd
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Tencent Technology Shenzhen Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/74Address processing for routing
    • H04L45/745Address table lookup; Address filtering

Abstract

The embodiment of the application discloses a data forwarding method and device, a server and a storage medium, and the application can be applied to the technical field of cloud, such as cloud networking, wherein the method comprises the following steps: receiving message data sent by a first instance node, wherein the message data carries a data source address; searching a forwarding routing table corresponding to the instance node identifier of the first instance node and the data source address of the message data from a preset mapping relation among the instance node identifier, the data source address and the forwarding routing table, wherein the preset mapping relation comprises a plurality of forwarding routing tables; and determining a forwarding routing table of the message data according to the search result, and forwarding the message data based on the forwarding routing table of the message data. The method can be executed by the gateway server, and by adopting the method, the routing forwarding granularity of the data in the cloud networking network can be reduced.

Description

Data forwarding method and device, server and storage medium
Technical Field
The present application relates to the field of network technologies, and in particular, to a data forwarding method and apparatus, a server, and a storage medium.
Background
In the prior art, the cloud networking forwards all the received data sent by each instance node based on the same routing table, and the scheme forwards the data based on the instance node granularity, so that the forwarding granularity is large, and when some instance nodes have special routing requirements, the forwarding granularity of the scheme cannot meet the routing forwarding with smaller granularity.
Disclosure of Invention
The embodiment of the application provides a data forwarding method and device, a server and a storage medium, which can reduce the routing forwarding granularity of data in a cloud networking network.
An embodiment of the present application provides a data forwarding method, including:
receiving message data sent by a first instance node, wherein the message data carries a data source address;
searching a forwarding routing table corresponding to the instance node identifier of the first instance node and the data source address of the message data from a preset mapping relation among instance node identifiers, data source addresses and the forwarding routing table, wherein the preset mapping relation comprises a plurality of forwarding routing tables, each forwarding routing table in the plurality of forwarding routing tables is determined by a first routing entry obtained by screening a routing entry set based on first attribute information of the corresponding instance node and a second routing entry obtained by screening the routing entry set based on a target address contained in the first routing entry, and the first attribute information comprises an instance node identifier;
and determining a forwarding routing table of the message data according to the search result, and forwarding the message data based on the forwarding routing table of the message data.
With reference to the first aspect, in a possible implementation manner, the determining a forwarding routing table of the packet data according to the lookup result includes:
if the search result is that the preset mapping relationship does not include the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the packet data, determining the forwarding routing table associated with the instance node identifier of the first instance node as the forwarding routing table of the packet data, where the forwarding routing table associated with the instance node identifier of the first instance node is a third routing entry obtained by screening the routing entry set based on the second attribute information of the first instance node, and is determined by a fourth routing entry obtained by screening the routing entry set based on a target address included in the third routing entry, where the second attribute includes instance information or an instance type.
With reference to the first aspect, in one possible implementation, the method further includes:
and sending the forwarding routing table associated with the instance node identifier of the first instance node to the first instance node, so that the first instance node forwards the received message data based on the forwarding routing table associated with the identifier of the first instance node.
With reference to the first aspect, in one possible implementation, the method further includes:
and if the forwarding routing table associated with the instance node identifier of the first instance node does not exist, determining the routing entry set as the forwarding routing table of the message data.
With reference to the first aspect, in one possible implementation, the method further includes:
and receiving each routing entry sent by each instance including the first instance node, and generating the routing entry set based on each routing entry, wherein each routing entry includes a destination address and next-hop path information for indicating to reach the destination address.
With reference to the first aspect, in a possible implementation manner, the packet data carries a data destination address, and a forwarding routing table of the packet data includes a plurality of routing entries;
the forwarding routing table based on the message data forwards the message data, and the forwarding routing table based on the message data forwards the message data includes:
screening the plurality of routing entries to obtain at least one available routing entry based on the data destination address;
and determining the available routing entry with the highest priority in the at least one available routing entry as a target routing entry, and sending the message data to an address corresponding to the next hop path information contained in the target routing entry.
With reference to the first aspect, in one possible implementation manner, the data source address includes an IP address or a subnet segment.
An embodiment of an aspect of the present application provides a data forwarding apparatus, including:
the receiving module is used for receiving message data sent by a first instance node, and the message data carries a data source address;
a searching module, configured to search a forwarding routing table corresponding to an instance node identifier of the first instance node and a data source address of the packet data from a preset mapping relationship between the instance node identifier and the data source address and the forwarding routing table, where the preset mapping relationship includes multiple forwarding routing tables, each forwarding routing table in the multiple forwarding routing tables is determined by a first routing entry obtained by screening a routing entry set based on first attribute information of a corresponding instance of the forwarding routing table and a second routing entry obtained by screening the routing entry set based on a target address included in the first routing entry, and the first attribute information includes an instance node identifier;
and the determining and forwarding module is used for determining a forwarding routing table of the message data according to the search result and forwarding the message data based on the forwarding routing table of the message data.
With reference to the second aspect, in a possible implementation manner, the determining and forwarding module is configured to:
if the search result is that the preset mapping relationship does not include the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the packet data, determining the forwarding routing table associated with the instance node identifier of the first instance node as the forwarding routing table of the packet data, where the forwarding routing table associated with the instance node identifier of the first instance node is a third routing entry obtained by screening the routing entry set based on the second attribute information of the first instance node, and is determined by a fourth routing entry obtained by screening the routing entry set based on a target address included in the third routing entry, where the second attribute includes instance information or an instance type.
With reference to the second aspect, in a possible implementation manner, the apparatus further includes: and a sending module.
The sending module is configured to send the forwarding routing table associated with the instance node identifier of the first instance node to the first instance node, so that the first instance node forwards the received packet data based on the forwarding routing table associated with the identifier of the first instance node.
With reference to the second aspect, in a possible implementation manner, the apparatus further includes: and a routing table determination module.
The routing table determining module is configured to determine the routing entry set as a forwarding routing table of the packet data if there is no forwarding routing table associated with the instance node identifier of the first instance node.
With reference to the second aspect, in a possible implementation manner, the apparatus further includes: and a receiving and generating module.
The receiving and generating module is configured to receive each routing entry sent by each instance including the first instance node, and generate the routing entry set based on each routing entry, where each routing entry includes a destination address and is used to indicate next-hop path information for reaching the destination address.
With reference to the second aspect, in a possible implementation manner, the packet data carries a data destination address, and a forwarding routing table of the packet data includes a plurality of routing entries;
the above-mentioned determining and forwarding module includes:
a screening unit, configured to screen the plurality of routing entries to obtain at least one available routing entry based on the data destination address;
and a determining and sending unit, configured to determine, as a target routing entry, an available routing entry with a highest priority in the at least one available routing entry, and send the packet data to an address corresponding to next-hop path information included in the target routing entry.
With reference to the second aspect, in a possible implementation manner, the data source address includes an IP address or a subnet segment.
An aspect of an embodiment of the present application provides a server, including: a processor, a memory and a transceiver, wherein the processor, the memory and the transceiver are connected to each other, wherein the memory is used for storing a computer program supporting the data forwarding device to execute the data forwarding method, and the computer program comprises program instructions; the processor is configured to call the program instructions to perform the data forwarding method as described in the first aspect of the present application.
An aspect of an embodiment of the present application provides a computer storage medium, where a computer program is stored in the computer storage medium, and the computer program includes program instructions; the program instructions, when executed by a processor, cause the processor to perform a data forwarding method as described above in an aspect of an embodiment of the present application.
In the embodiment of the application, message data sent by a first example node is received, the message data carries a data source address, a forwarding routing table corresponding to the example node identifier of the first example node and the data source address of the message data is searched from a preset mapping relation among the example node identifier, the data source address and the forwarding routing table, the forwarding routing table of the message data is further determined according to the search result, the message data is forwarded based on the forwarding routing table of the message data, and the routing forwarding granularity of the data in a cloud networking network can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a scenario of a data forwarding method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a data forwarding method provided in an embodiment of the present application;
fig. 3 is another schematic flow chart of a data forwarding method provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a data forwarding apparatus provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a server according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
After message data sent by an example node are received, a preset mapping relation among an example node identifier, a data source address and a forwarding routing table, namely a plurality of forwarding routing tables, can be searched for the example node identifier of the example node and the forwarding routing table corresponding to the data source address of the message data, the forwarding routing table of the message data is further determined according to the search result, the message data are forwarded based on the forwarding routing table of the message data, and the routing forwarding granularity of the data in a cloud networking network can be reduced. The data source address may be an IP address or a subnet segment, for example, the IP address is 10.0.0.0/24, and the corresponding subnet mask is 24, that is, the subnet segment is 24. The following description will be made with the data source address as the IP address.
The data forwarding method provided by the application can be applied to a data forwarding system, the system comprises a gateway server and an instance node cluster, wherein the instance node cluster may comprise a plurality of instance nodes, specifically, an instance node a, an instance node b, instance nodes c and …, and an instance node n.
The gateway server may provide a service for a user to interconnect a Virtual Private Network (VPC), the VPC, and an Internet Data Center (IDC) intranet, and a server having capabilities of full-Network multipoint interconnection, route self-learning, link optimization, fault fast convergence, and the like, such as a Cloud Connect Network (CCN). Each instance node in the instance node cluster may be an associated Network component with routing tables and routing delivery capabilities, such as a VPC, Private line gateway, Virtual Private Network (VPN) gateway, etc., associated to a cloud networking.
In addition, each instance node in the gateway server and the instance node cluster includes, but is not limited to, a terminal or a server, where the server may be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, or a cloud server providing basic cloud computing services such as cloud service, a cloud database, cloud computing, a cloud function, cloud storage, network service, cloud communication, middleware service, domain name service, security service, CDN, and a big data and artificial intelligence platform. The terminal may be, but is not limited to, a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, and the like. The terminal and the server may be directly or indirectly connected through wired or wireless communication, and the application is not limited herein.
For convenience of understanding, please refer to fig. 1, which is a schematic view of a scenario of the data forwarding method provided in the embodiment of the present application. As shown in fig. 1, after receiving the packet data sent by the instance node 101a, the gateway server 100 searches, based on the instance identifier of the instance node 101a, that is, VPC-111, and the data source address 10.0.0.0/24 carried by the packet data, to obtain, as the forwarding routing table 1, a forwarding routing table corresponding to the instance identifier VPC-111 and the data source address 10.0.0.0/24 carried by the packet data, and determines the forwarding routing table 1 as the forwarding routing table of the packet data, determines a target routing entry from the routing table 1, and sends the packet data to an address corresponding to the next-hop routing information included in the target routing entry, that is, the instance node 101 c. The instance node 101c receives the message data, determines at least one routing entry consistent with the destination address of the message data from a forwarding routing table associated with the instance identifier of the instance node 101c, which is previously received and sent by the gateway server 100, based on the destination address carried by the message data, determines a next hop identifier contained in a routing entry with the highest priority in the at least one routing entry as an address corresponding to next hop path information of the message data, and the instance node 101c sends the message data to the address corresponding to the next hop path information of the message data until the message data reaches the destination address carried by the instance node. The forwarding routing table associated with the instance identifier of the instance node 101c may be determined jointly by a third routing entry obtained by screening the routing entry set based on the instance node geographical information or the instance node type of the instance node 101c, and a fourth routing entry obtained by screening the routing entry set based on a target address included in the third routing entry.
If the forwarding routing table corresponding to the instance identifier VPC-111 and the data source address carried by the packet data of 10.0.0.0/24 is not found from the preset mapping relationship, the forwarding routing table 2 associated with the instance identifier of the instance node 101a, i.e., VPC-111, is determined as the forwarding routing table of the packet data, and a target routing entry is determined from the routing table 2, and the packet data is sent to the address corresponding to the next hop routing information included in the target routing entry, i.e., the instance node 101 f. The instance node 101f receives the message data, and determines at least one routing entry consistent with the destination address of the message data from a forwarding routing table previously received and sent by the gateway server 100 and associated with the instance identifier of the instance node 101f based on the destination address carried by the message data, and determining the next hop identifier contained in the route entry with the highest priority in the at least one route entry as the address corresponding to the next hop path information of the message data, wherein the forwarding routing table associated with the instance identifier of the instance node 101f is a third routing entry obtained by screening the routing entry set based on the instance node region information or the instance node type of the instance node 101f, and the fourth routing entries obtained by screening the routing entry set based on the target addresses contained in the third routing entries are determined together. Then, the instance node 101f sends the message data to the address corresponding to the next hop path information of the message data until the message data reaches the destination address carried by the message data.
Please refer to fig. 2, which is a flow chart of a data forwarding method according to an embodiment of the present application. As shown in fig. 2, the method provided by the present application may include the following steps:
s101, receiving message data sent by a first instance node, wherein the message data carries a data source address.
In some possible embodiments, before step S101, after the gateway server creates the CCN, all instance nodes joining the CCN may receive the routing entries sent by the instance nodes to the CCN, and generate a set of routing entries, i.e., a default forwarding routing table (as shown in table 1), based on the received routing entries sent by all instance nodes. Each row in table 1 is, for example, a routing entry, and the routing entry includes a destination address, and is used to indicate next-hop path information for reaching the destination address, where the next-hop path information may include a next-hop identifier, a next-hop type, and next-hop regional information.
The routing entry set is determined by the gateway server according to the received routing entries of the instance nodes sent by the instance nodes, and the routing entries of the instance nodes are determined based on the target addresses carried by the message data received by the instance nodes in the data receiving record in the preset time period each time and the instance node identifiers of the instance nodes. Illustratively, the routing entry of the instance node 101c generates the routing entry 1, the routing entry 2, and the routing entry 3 according to the destination address 1, the destination address 2, and the destination address 3 carried by all packet data received within a preset time period, and the instance identifier VPC-101 of the instance node 101 c. The next hop identifiers contained in the routing entry 1, the routing entry 2 and the routing entry 3 are all VPC-101, and the contained target addresses are the target address 1, the target address 2 and the target address 3 respectively.
It should be noted that the instance nodes report their own routing entries to the gateway server, so that the gateway server determines that each instance node forwards packet data to the target address included in the routing entry of each instance node, and the gateway server determines, according to the received routing entry sent by each instance node, to which target address each instance node can forward data.
Table 1 default forwarding routing table
Target address Next hop identification Next hop type Next hop regional information
10.0.1.0/24 VPC-1 VPC Nanjing
10.1.1.0/24 Private line gateway-4 Special line gateway Chengdu
10.0.2.0/24 VPC-1 VPC Nanjing
...
10.0.1.0/24 VPN gateway-3 VPN gateway Shenzhen (Shenzhen medicine)
The gateway server may determine, jointly, a forwarding routing table corresponding to the instance node identifier and the data source address of the instance node, based on a first routing entry obtained by screening each routing entry in the default routing table based on the instance node identifier of the instance, and a second routing entry obtained by screening a routing entry set based on a target address included in the first routing entry. For example, the gateway server screens the default forwarding routing table shown in table 1 based on the instance node identifier of the first instance node, that is, VPC-1, to obtain a routing entry 1 and a routing entry 2 whose next hop identifiers are consistent with VPC-1, sequentially screens a routing entry 3 consistent with a destination address 10.0.1.0/24 included in the routing entry 1 from the default forwarding routing table shown in table 1 based on the destination address 10.0.1.0/24 of the routing entry 1 and the destination address 10.0.2.0/24 of the routing entry 2, and generates a forwarding routing table 1 (shown in table 2) whose instance node identifier is VPC-1 and data source address is 10.0.0.0/24 based on the routing entry 1, the routing entry 2, and the routing entry 3.
Table 2 forwarding routing table 1
Target address Next hop identification Next hop type Next hop regional information
10.0.1.0/24 VPC-1 VPC Nanjing
10.0.2.0/24 VPC-1 VPC Nanjing
10.0.1.0/24 VPN gateway-3 VPN gateway Shenzhen (Shenzhen medicine)
In other possible embodiments, after the gateway server creates the CCN, it may receive the routing entries sent by all instance nodes joining the CCN to the CCN, and generate the set of routing entries based on the received routing entries sent by all instance nodes. Meanwhile, the received routing entries sent by each instance node can be screened based on the first instance node identifier to obtain first routing entries consistent with the first instance node identifier, second routing entries consistent with target addresses contained in the first routing entries are screened from the routing entries sent by each instance node, and a forwarding routing table corresponding to the instance node identifier and the data source address of the first instance node is generated based on the first routing entries and the second routing entries.
It should be noted that the forwarding routing table corresponding to the instance identifier and the data source address of the first instance node formed in the above manner includes all destination addresses to which the first instance node can forward the packet data, and all other instance nodes except the first instance node that can forward the packet data to all the destination addresses.
Based on any of the above manners, different forwarding routing tables corresponding to different instance node identifiers and data source addresses can be obtained, and further a preset mapping relationship (as shown in table 3) between the instance node identifiers and the data source addresses and the forwarding routing tables is obtained, where the preset mapping relationship includes a plurality of forwarding routing tables, and each forwarding routing table is determined jointly by a first routing entry obtained by screening the default forwarding routing table based on the instance node identifier of the corresponding instance node and a second routing entry obtained by screening the default forwarding routing table based on the destination address included in the first routing entry.
Table 3 example node identification and preset mapping relationship between data source address and forwarding routing table
Instance node identification Data source address Forwarding routing table
VPC-1 10.0.1.0/24 Forwarding routing table 1
VPC-21 10.0.2.0/24 Forwarding routing table 3
VPN gateway-13 10.1.2.0/24 Forwarding routing table 5
And then, the gateway server receives the message data sent by the first instance node, wherein the message data carries a data source address.
S102, searching a forwarding routing table corresponding to the instance node identifier of the first instance node and the data source address of the message data from the preset mapping relation among the instance node identifier, the data source address and the forwarding routing table.
In some possible embodiments, the gateway server may find, based on the instance node identifier of the first instance node, i.e. VPN-1, and the data source address of the packet data, i.e. 10.0.1.0/24, from the preset mapping relationship in table 3, that the forwarding routing table corresponding to the instance node identifier of VPN-1 and the data source address of the packet data being 10.0.1.0/24 is the forwarding routing table 1.
S103, determining a forwarding routing table of the message data according to the search result, and forwarding the message data based on the forwarding routing table of the message data.
In some feasible embodiments, if the search result is that the preset mapping relationship includes the example node identifier of the first example node and the forwarding routing table corresponding to the data source address of the packet data, the gateway server determines the example node identifier of the first example node and the forwarding routing table corresponding to the data source address of the packet data as the forwarding routing table of the packet data. Based on a data destination address or a prefix of the data destination address carried by the message data, screening each routing entry in a forwarding routing table of the message data to obtain at least one available routing entry, and sending the message data to an address (such as a next hop identifier) corresponding to next path information contained in the target routing entry, wherein the available routing entry has the highest priority in the at least one available routing entry.
Wherein the priority of each routing entry may be determined based on at least one of a next hop identifier, a next hop type, next hop regional information, and a destination address prefix. For example, if the priority of the next hop region information is from high to low, which is sequentially beijing, chengdu, and beijing, and the next hop region information contained in the route entry 1, the route entry 2, and the route entry 3 is sequentially beijing, chengdu, and beijing, the priority of the route entry 3 is higher than the priority of the route entry 2, and the priority of the route entry 2 is higher than the priority of the route entry 1.
In the embodiment of the application, the message data sent by the first example node is received, the message data carries a data source address, the example node identifier of the first example node and the forwarding routing table corresponding to the data source address of the message data can be searched from a preset mapping relation between the example node identifier and the data source address and the forwarding routing table, that is, from a plurality of routing tables, the forwarding routing table of the message data is determined according to the search result, the message data is forwarded based on the forwarding routing table of the message data, and the routing forwarding granularity of the data in the cloud networking network can be reduced.
Please refer to fig. 3, which is another schematic flow chart of the data forwarding method according to the embodiment of the present application. As shown in fig. 3, the method provided by the present application may include the following steps:
s201, receiving message data sent by the first instance node, wherein the message data carries a data source address.
Before executing step S201, the gateway server generates a routing entry set, that is, a default forwarding routing table, based on the received routing entries sent by all the instance nodes, and may filter each routing entry in the default routing table based on the instance node identifier of the instance node, and filter a second routing entry obtained by filtering the default forwarding routing table based on a target address included in the first routing entry, to obtain a forwarding routing table corresponding to the instance node identifier and the data source address of the instance node, so as to obtain a preset mapping relationship between the instance node identifier and the data source address and the forwarding routing table. Here, the specific implementation manner of generating the default forwarding routing table and obtaining the example node identifier and the preset mapping relationship between the data source address and the forwarding routing table based on the default forwarding routing table may refer to the corresponding description in step S101 in the corresponding embodiment, and is not described herein again.
After the gateway server generates the default forwarding routing table, the gateway server may further filter the default forwarding routing table based on the second attribute information of the instance node to obtain a third routing entry, and filter the default forwarding routing table based on a target address included in the third routing entry to obtain a fourth routing entry, so as to obtain a forwarding routing table associated with the instance node identifier of the instance node, that is, the custom forwarding routing table. The second attribute information includes instance region information or an instance type.
In some possible embodiments, the gateway server may screen out, from the default forwarding routing table, a third routing entry whose next-hop domain information is consistent with the example domain information of the example node, based on the example domain information of the example node, screen out, from the default forwarding routing table, a fourth routing entry whose destination address is consistent with that contained in the third routing entry, and aggregate the third routing entry and the fourth routing entry to generate a custom forwarding routing table associated with the example node identifier of the example node.
For example, assuming that the example region information of the first example node is nanjing, the default forwarding routing table shown in table 1 is based on the example region information of the first example node being nanjing, so as to obtain routing entry 1, routing entry 2, and routing entry 3 whose next-hop region information is consistent with nanjing, and sequentially screen out routing entry 4 which is consistent with destination address 10.0.1.0/24 included in routing entry 1, routing entry 5 which is consistent with destination address 10.0.2.0/24 included in routing entry 2, and routing entry 6 which is consistent with destination address 10.0.1.1/20 included in routing entry 3 from the default forwarding routing table shown in table 1, and generate forwarding routing table 2 associated with the example node identifier of the first example node based on routing entries 1 to routing entry 6 (as shown in table 4).
Table 4 forwarding routing table 2
Target address Next hop identification Next hop type Next hop regional information
10.0.1.0/24 VPC-1 VPC Nanjing
10.0.2.0/24 VPC-1 VPC Nanjing
10.0.1.1/20 Special line gateway-6 Special line gateway Nanjing
10.0.1.0/24 VPN gateway-3 VPN gateway Shenzhen (Shenzhen medicine)
10.0.2.0/24 Special line gateway-1 Special line gateway Chengdu
10.0.1.1/20 VPC-5 VPC Shenzhen (Shenzhen medicine)
In other possible embodiments, the gateway server may filter out a third routing entry whose next hop type is consistent with the instance type of the instance node from the default forwarding routing table based on the instance type of the instance node, filter out a fourth routing entry which is consistent with a destination address included in the third routing entry from the default forwarding routing table, and aggregate the third routing entry and the fourth routing entry to generate a custom forwarding routing table associated with the instance node identifier of the instance node.
For example, assuming that the instance type of the first instance node is VPC, based on the instance type of the first instance node being VPC, the default forwarding routing table shown in table 1 is screened to obtain routing entries 1 to 4 whose next hop types are consistent with VPC, and a routing entry 5 consistent with the destination address 10.0.1.0/24 included in the routing entry 1, a routing entry 6 consistent with the destination address 10.0.2.0/24 included in the routing entry 2, and a routing entry 7 consistent with the destination address 10.0.1.1/20 included in the routing entry 3 are sequentially screened from the default forwarding routing table shown in table 1, and based on the routing entries 1 to 7, a forwarding routing table 3 (as shown in table 5) associated with the instance node identifier of the first instance node is generated.
Table 5 forwarding routing table 3
Target address Next hop identification Next hop type Next hop regional information
10.0.1.0/24 VPC-1 VPC Nanjing
10.0.2.0/24 VPC-1 VPC Nanjing
10.0.1.1/20 VPC-5 VPC Shenzhen (Shenzhen medicine)
10.0.2.0/20 VPC-6 VPC Beijing
10.0.1.0/24 VPN gateway-3 VPN gateway Shenzhen (Shenzhen medicine)
10.0.2.0/24 Special line gateway-1 Special line gateway Chengdu
10.0.1.1/20 Special line gateway-6 Special line gateway Nanjing
It should be noted that the forwarding routing table associated with the instance identifier of the first instance node, which is formed in the above manner, includes a part of destination addresses where the first instance node can forward the packet data, and all other instance nodes except the first instance node that can forward the packet data to the part of destination addresses. Thus, the forwarding routing table corresponding to the instance identification and the data source address of the first instance node is more relevant to the first instance node than the forwarding routing table associated with the instance identification of the first instance node.
After generating the forwarding routing table associated with the instance node identifier of the instance node, the gateway server sends the forwarding routing table to the instance node, and the instance node receives the forwarding routing table, so that the instance node is associated with the forwarding routing table, and can forward the received message data based on the forwarding routing table associated with the instance node.
And then, the gateway server receives the message data sent by the first instance node, wherein the message data carries a data source address.
S202, searching the example node identification of the first example node and the forwarding routing table corresponding to the data source address of the message data from the preset mapping relation among the example node identification, the data source address and the forwarding routing table.
Here, the specific implementation manner of step S202 may refer to the description of step S102 in the corresponding embodiment, and is not described herein again.
S203, judging whether the searching result is successful.
In some possible embodiments, if the search result is that the search is successful, that is, the preset mapping relationship includes the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the packet data, step S204 is executed; if the search result is a search failure, that is, the preset mapping relationship does not include the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the packet data, step S205 is executed.
S204, determining the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the message data as the forwarding routing table of the message data.
S205, determine whether there is a forwarding routing table associated with the instance node identifier of the first instance node.
In some possible implementations, the gateway server may determine whether a forwarding routing table associated with the instance node identification of the first instance node exists by determining whether a record exists in the routing table send records that sends the forwarding routing table to the first instance node. If the record for sending the forwarding routing table to the first instance node exists in the routing table sending records, determining that the forwarding routing table associated with the instance node identifier of the first instance node exists, and executing step S206; if there is no record of sending the forwarding routing table to the first instance node in the routing table sending records, it is determined that there is no forwarding routing table associated with the instance node identifier of the first instance node, and step S207 is performed.
S206, determining the forwarding routing table associated with the instance node identification of the first instance node as the forwarding routing table of the message data.
S207, the route entry set is determined as a forwarding route table of the message data.
S208, forwarding the message data based on the forwarding routing table of the message data.
In some possible embodiments, the gateway server may filter each routing entry in a forwarding routing table of the packet data based on a data destination address or a prefix of the data destination address carried by the packet data to obtain at least one available routing entry, and send the packet data to an address (such as a next hop identifier) corresponding to next path information included in the destination routing entry, where the available routing entry has a highest priority in the at least one available routing entry.
In this embodiment of the present application, after receiving the packet data sent by the first instance node, the gateway server first searches, based on the instance node identifier of the first instance node and the data source address of the packet data, a forwarding routing table corresponding to the instance node identifier of the first instance node and the data source address of the packet data from a preset mapping relationship between the instance node identifier and the data source address of the data source address and the forwarding routing table, that is, multiple routing tables. If the searching result is that the searching is successful, determining the example node identifier of the first example node and a forwarding routing table corresponding to the data source address of the message data as the forwarding routing table of the message data; if the search result is a search failure, determining whether a forwarding routing table associated with the instance node identifier of the first instance node exists, and if so, determining the forwarding routing table associated with the instance node identifier of the first instance node as a forwarding routing table of the message data; and if not, determining the routing entry set as a forwarding routing table of the message data. And then, forwarding the message data based on the forwarding routing table of the message data, so that the routing forwarding control of the IP address or the subnet net segment plus the example granularity can be realized, and the routing forwarding granularity of the data in the cloud networking network is reduced.
Based on the description of the foregoing method embodiment, the present application further provides a data forwarding device, where the data forwarding device may be a gateway server in the foregoing method embodiment, and is configured to execute corresponding steps in the method provided in the present application embodiment. Fig. 4 is a schematic structural diagram of a data forwarding apparatus according to an embodiment of the present application. As shown in fig. 4, the data forwarding apparatus 4 may include: a receiving module 41, a look-up module 42, and a decision forwarding module 43.
A receiving module 41, configured to receive message data sent by a first instance node, where the message data carries a data source address;
a searching module 42, configured to search, from a preset mapping relationship between an instance node identifier and a data source address and a forwarding routing table, a forwarding routing table corresponding to the instance node identifier of the first instance node and the data source address of the packet data, where the preset mapping relationship includes multiple forwarding routing tables, each forwarding routing table in the multiple forwarding routing tables is determined by a first routing entry obtained by screening a routing entry set based on first attribute information of a corresponding instance of the forwarding routing table, and a second routing entry obtained by screening the routing entry set based on a target address included in the first routing entry, and the first attribute information includes an instance node identifier;
and a determining and forwarding module 43, configured to determine a forwarding routing table of the message data according to the search result, and forward the message data based on the forwarding routing table of the message data.
In some possible embodiments, the data source address includes an IP address or a subnet segment.
In some possible embodiments, the above-mentioned determining and forwarding module 43 is configured to:
if the search result is that the preset mapping relationship does not include the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the packet data, determining the forwarding routing table associated with the instance node identifier of the first instance node as the forwarding routing table of the packet data, where the forwarding routing table associated with the instance node identifier of the first instance node is a third routing entry obtained by screening the routing entry set based on the second attribute information of the first instance node, and is determined by a fourth routing entry obtained by screening the routing entry set based on a target address included in the third routing entry, where the second attribute includes instance information or an instance type.
In some possible embodiments, the apparatus further comprises: a sending module 44.
The sending module 54 is configured to send the forwarding routing table associated with the instance node identifier of the first instance node to the first instance node, so that the first instance node forwards the received packet data based on the forwarding routing table associated with the identifier of the first instance node.
In some possible embodiments, the apparatus further comprises: a routing table determination module 45.
The routing table determining module 55 is configured to determine the routing entry set as a forwarding routing table of the packet data if there is no forwarding routing table associated with the instance node identifier of the first instance node.
In some possible embodiments, the apparatus further comprises: the receive generation module 46.
The receiving and generating module 46 is configured to receive each routing entry sent by each instance including the first instance node, and generate the routing entry set based on each routing entry, where each routing entry includes a destination address and is used to indicate next-hop path information for reaching the destination address.
In some possible embodiments, the message data carries a data destination address, and the forwarding routing table of the message data includes a plurality of routing entries;
the above-mentioned determining and forwarding module 43 includes:
a screening unit 431, configured to screen the plurality of routing entries to obtain at least one available routing entry based on the data destination address;
a determining and sending unit 432, configured to determine an available routing entry with a highest priority in the at least one available routing entry as a target routing entry, and send the packet data to an address corresponding to next-hop path information included in the target routing entry.
It will be appreciated that the data forwarding device 4 is used to implement the steps performed by the gateway server in the embodiments of fig. 2 and 3. As to the specific implementation manner and corresponding beneficial effects of the functional blocks included in the data forwarding apparatus 4 in fig. 4, reference may be made to the specific descriptions of the embodiments in fig. 2 and fig. 3, which are not described herein again.
The data forwarding apparatus 5 in the embodiment shown in fig. 4 can be implemented by the server 500 shown in fig. 5. Please refer to fig. 5, which is a schematic structural diagram of a server according to an embodiment of the present application. As shown in fig. 5, the server 500 may include: one or more processors 501, memory 502, and transceiver 503. The processor 501, memory 502, and transceiver 503 are connected by a bus 504. The transceiver 503 is configured to receive or transmit data, and the memory 502 is configured to store a computer program, where the computer program includes program instructions; the processor 501 is configured to execute the program instructions stored in the memory 502, and perform the following operations:
receiving message data sent by a first instance node, wherein the message data carries a data source address;
searching a forwarding routing table corresponding to the instance node identifier of the first instance node and the data source address of the message data from a preset mapping relation among instance node identifiers, data source addresses and the forwarding routing table, wherein the preset mapping relation comprises a plurality of forwarding routing tables, each forwarding routing table in the plurality of forwarding routing tables is determined by a first routing entry obtained by screening a routing entry set based on first attribute information of the corresponding instance node and a second routing entry obtained by screening the routing entry set based on a target address contained in the first routing entry, and the first attribute information comprises an instance node identifier;
and determining a forwarding routing table of the message data according to the search result, and forwarding the message data based on the forwarding routing table of the message data.
In some possible embodiments, the data source address includes an IP address or a subnet segment.
In some possible embodiments, the processor 501 determines the forwarding routing table of the packet data according to the search result, and specifically performs the following steps:
if the search result is that the preset mapping relationship does not include the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the packet data, determining the forwarding routing table associated with the instance node identifier of the first instance node as the forwarding routing table of the packet data, where the forwarding routing table associated with the instance node identifier of the first instance node is a third routing entry obtained by screening the routing entry set based on the second attribute information of the first instance node, and is determined by a fourth routing entry obtained by screening the routing entry set based on a target address included in the third routing entry, where the second attribute includes instance node region information or an instance node type.
In some possible embodiments, the processor 501 further performs the following steps:
and sending the forwarding routing table associated with the instance node identifier of the first instance node to the first instance node, so that the first instance node forwards the received message data based on the forwarding routing table associated with the identifier of the first instance node.
In some possible embodiments, the processor 501 further performs the following steps:
and if the forwarding routing table associated with the instance node identifier of the first instance node does not exist, determining the routing entry set as the forwarding routing table of the message data.
In some possible embodiments, the processor 501 further performs the following steps:
receiving each routing entry sent by each instance node including the first instance node, and generating the routing entry set based on each routing entry, wherein each routing entry includes a destination address and next-hop path information for indicating to reach the destination address.
In some possible embodiments, the message data carries a data destination address, and the forwarding routing table of the message data includes a plurality of routing entries;
the processor 501 forwards the packet data based on the forwarding routing table of the packet data, and specifically performs the following steps:
screening the plurality of routing entries to obtain at least one available routing entry based on the data destination address;
and determining the available routing entry with the highest priority in the at least one available routing entry as a target routing entry, and sending the message data to an address corresponding to the next hop path information contained in the target routing entry.
It should be understood that the server 500 described in this embodiment may perform the description of the data forwarding method in the embodiments corresponding to fig. 2 and fig. 3, and may also perform the description of the data forwarding device in the embodiments corresponding to fig. 4, which is not described herein again. In addition, the beneficial effects of the same method are not described in detail.
Further, here, it is to be noted that: an embodiment of the present application further provides a computer storage medium, and the computer storage medium stores a computer program executed by the aforementioned data forwarding apparatus 4, where the computer program includes program instructions, and when the processor executes the program instructions, the description of the data forwarding method in the embodiment corresponding to fig. 2 or fig. 3 can be executed, so that details are not repeated here. In addition, the beneficial effects of the same method are not described in detail. For technical details not disclosed in the embodiments of the computer storage medium referred to in the present application, reference is made to the description of the embodiments of the method of the present application. As an example, program instructions may be deployed to be executed on one computing device or on multiple computing devices at one site or distributed across multiple sites and interconnected by a communication network, which may comprise a block chain system.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
The method and the related apparatus provided by the embodiments of the present application are described with reference to the flowchart and/or the structural diagram of the method provided by the embodiments of the present application, and each flow and/or block of the flowchart and/or the structural diagram of the method, and the combination of the flow and/or block in the flowchart and/or the block diagram can be specifically implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block or blocks of the block diagram. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block or blocks of the block diagram. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block or blocks.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.

Claims (10)

1. A method for forwarding data, comprising:
receiving message data sent by a first instance node, wherein the message data carries a data source address;
searching a forwarding routing table corresponding to the instance node identifier of the first instance node and the data source address of the message data from a preset mapping relation among instance node identifiers, data source addresses and the forwarding routing table, wherein the preset mapping relation comprises a plurality of forwarding routing tables, each forwarding routing table in the plurality of forwarding routing tables is determined by a first routing entry obtained by screening a routing entry set based on first attribute information of the corresponding instance node and a second routing entry obtained by screening the routing entry set based on a target address contained in the first routing entry, and the first attribute information comprises an instance node identifier;
and determining a forwarding routing table of the message data according to the search result, and forwarding the message data based on the forwarding routing table of the message data.
2. The method according to claim 1, wherein the determining the forwarding routing table of the packet data according to the lookup result comprises:
if the search result is that the preset mapping relationship does not include the instance node identifier of the first instance node and the forwarding routing table corresponding to the data source address of the packet data, determining the forwarding routing table associated with the instance node identifier of the first instance node as the forwarding routing table of the packet data, where the forwarding routing table associated with the instance node identifier of the first instance node is determined by a third routing entry obtained by screening the routing entry set based on the second attribute information of the first instance node, and a fourth routing entry obtained by screening the routing entry set based on a target address contained in the third routing entry, where the second attribute includes instance node region information or an instance node type.
3. The method of claim 2, further comprising:
and sending the forwarding routing table associated with the instance node identifier of the first instance node to the first instance node, so that the first instance node forwards the received message data based on the forwarding routing table associated with the identifier of the first instance node.
4. The method of claim 2, further comprising:
and if the forwarding routing table associated with the instance node identifier of the first instance node does not exist, determining the routing entry set as the forwarding routing table of the message data.
5. The method of claim 1, 2 or 4, further comprising:
receiving each routing entry sent by each instance node including the first instance node, and generating the routing entry set based on each routing entry, wherein each routing entry includes a destination address and is used for indicating next-hop path information for reaching the destination address.
6. The method of claim 1, wherein the packet data carries a data destination address, and wherein a forwarding routing table of the packet data comprises a plurality of routing entries;
the forwarding routing table based on the message data forwards the message data, and the forwarding routing table based on the message data comprises:
screening the plurality of routing entries to obtain at least one available routing entry based on the data destination address;
and determining the available routing entry with the highest priority in the at least one available routing entry as a target routing entry, and sending the message data to an address corresponding to the next-hop path information contained in the target routing entry.
7. The method of claim 1, wherein the data source address comprises an IP address or a subnet segment.
8. A data forwarding apparatus, comprising:
the receiving module is used for receiving message data sent by a first instance node, and the message data carries a data source address;
a searching module, configured to search a forwarding routing table corresponding to an instance node identifier of the first instance node and a data source address of the packet data from a preset mapping relationship between the instance node identifier and the data source address and the forwarding routing table, where the preset mapping relationship includes multiple forwarding routing tables, each forwarding routing table in the multiple forwarding routing tables is determined by a first routing entry obtained by screening a routing entry set based on first attribute information of its corresponding instance node and a second routing entry obtained by screening the routing entry set based on a target address included in the first routing entry, and the first attribute information includes an instance node identifier;
and the determining and forwarding module is used for determining a forwarding routing table of the message data according to the search result and forwarding the message data based on the forwarding routing table of the message data.
9. A server, comprising a processor, a memory and a transceiver, the processor, the memory and the transceiver being interconnected, wherein the transceiver is configured to receive or transmit data, the memory is configured to store program code, and the processor is configured to invoke the program code to perform the method of any of claims 1-7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which is executed by a processor to implement the method of any one of claims 1-7.
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