CN111988221B - Data transmission method, data transmission device, storage medium and electronic equipment - Google Patents
Data transmission method, data transmission device, storage medium and electronic equipment Download PDFInfo
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- CN111988221B CN111988221B CN202010897779.7A CN202010897779A CN111988221B CN 111988221 B CN111988221 B CN 111988221B CN 202010897779 A CN202010897779 A CN 202010897779A CN 111988221 B CN111988221 B CN 111988221B
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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
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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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
- H04L45/24—Multipath
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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
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/12—Avoiding congestion; Recovering from congestion
- H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
Abstract
The disclosure provides a data transmission method, a data transmission device, a computer readable storage medium and an electronic device, and belongs to the technical field of communication. The method comprises the following steps: receiving a first data packet sent by a client through a receiving port, wherein the receiving port comprises a multi-line interface and a border gateway interface; determining a routing table of the first data packet according to the type of the receiving port; determining an equivalent route of the first data packet according to the routing table so as to determine a host corresponding to the equivalent route as a target host; and sending the first data packet to the target host. The method and the device can realize multi-path transmission of data, and improve the transmission efficiency and reliability of the data.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a data transmission method, a data transmission apparatus, a computer-readable storage medium, and an electronic device.
Background
With the continuous development of information technology, enterprises often need to access multiple operator (ISP) networks in network configuration, for example, to simultaneously access operator lines such as telecom, unicom, mobile, etc., so as to improve the access efficiency of users through the Internet interconnection.
In conventional applications, businesses mostly use Border Gateway Protocol (BGP) to access multiple operator networks. In this way, access requests of each operator user are accessed to the enterprise server through a uniform interface, but with the increasing of the user amount and the request times, when a BGP access mode is adopted, the data transmission cost is high, the transmission efficiency is low, and particularly when BGP access equipment fails, data transmission is suspended, and the user cannot perform normal interaction.
It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure provides a data transmission method, a data transmission device, a computer-readable storage medium, and an electronic device, thereby improving the problem of low data transmission efficiency in the prior art at least to a certain extent.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows, or in part will be obvious from the description, or may be learned by practice of the disclosure.
According to a first aspect of the present disclosure, there is provided a data transmission method, the method comprising: receiving a first data packet sent by a client through a receiving port, wherein the receiving port comprises a multi-line interface and a border gateway interface; determining a routing table of the first data packet according to the type of the receiving port; determining an equivalent route of the first data packet according to the routing table so as to determine a host corresponding to the equivalent route as a target host; and sending the first data packet to the target host.
In an exemplary embodiment of the disclosure, the determining a routing table of the first packet according to the type of the receiving port includes: when the receiving port is a multi-line interface, determining that a routing table of the first data packet is a multi-line routing table; and when the receiving port is a boundary gateway interface, determining that the routing table of the first data packet is a boundary gateway routing table.
In an exemplary embodiment of the disclosure, when determining that the routing table of the first packet is a multi-line routing table, the method further includes: and pulling the first data packet to the border gateway routing table according to the multi-line routing table.
In an exemplary embodiment of the present disclosure, the determining an equivalent route of the first packet according to the routing table to determine a host corresponding to the equivalent route as a target host includes: resolving a destination address of the first data packet to determine a plurality of equivalent routes of the first data packet reaching the destination address through the routing table; and selecting an available route according to the equivalent routes so as to determine the host corresponding to the available route as the target host.
According to a second aspect of the present disclosure, there is provided another data transmission method, the method comprising: receiving a second data packet sent by the target host; parsing the second packet to determine a routing table for the second packet; determining a sending port of the second data packet according to the routing table, wherein the sending port comprises a multi-line interface and a border gateway interface; and transmitting the second data packet to a client through the sending port.
In an exemplary embodiment of the present disclosure, the parsing the second packet to determine a routing table of the second packet includes: and analyzing the source address of the second data packet to determine a routing table of the second data packet according to the source address.
In an exemplary embodiment of the present disclosure, the parsing a source address in the second packet to determine a routing table of the second packet according to the source address includes: when the source address in the second data packet is a multi-line address, determining that a routing table of the second data packet is a multi-line routing table; and when the source address in the second data packet is the border gateway address, determining that the routing table of the second data packet is the border gateway routing table.
In an exemplary embodiment of the present disclosure, the determining a sending port of the second packet according to the routing table includes: resolving the destination address of the second data packet; determining that a sending port reaching the destination address is a multi-line interface through the multi-line routing table; and determining that the sending port reaching the destination address is a boundary gateway interface through the boundary gateway routing table.
In an exemplary embodiment of the present disclosure, when the second packet is transmitted to the client through the transmission port, the method includes: sending the second data packet directly to the client through the border gateway interface; and/or transmitting the second data packet to a virtual extended local area network tunnel through the multi-wire interface so as to send the second data packet to the client through the virtual extended local area network tunnel.
According to a third aspect of the present disclosure, there is provided a data transmission apparatus comprising: the receiving module is used for receiving a first data packet sent by a client through a receiving port, and the receiving port comprises a multi-line interface and a border gateway interface; a first determining module, configured to determine, according to the type of the receiving port, a routing table corresponding to the first packet; a second determining module, configured to determine an equivalent route of the first packet according to the routing table, so as to determine a host corresponding to the equivalent route as a target host; and the sending module is used for sending the first data packet to the target host.
In an exemplary embodiment of the disclosure, the first determining module is configured to determine that the routing table of the first data packet is a multi-line routing table when the receiving port is a multi-line interface, and determine that the routing table of the first data packet is a border gateway routing table when the receiving port is a border gateway interface.
In an exemplary embodiment of the disclosure, when determining that the routing table of the first packet is a multi-line routing table, the first determining module is further configured to pull the first packet to the border gateway routing table according to the multi-line routing table.
In an exemplary embodiment of the disclosure, the second determining module is configured to parse a destination address of the first packet, to determine multiple equivalent routes of the first packet arriving at the destination address through the routing table, and to select one available route according to the multiple equivalent routes, so as to determine a host corresponding to the available route as a target host.
According to a fourth aspect of the present disclosure, there is provided another data transmission apparatus comprising: a receiving module, configured to receive a second data packet sent by a target host; the analysis module is used for analyzing the second data packet to determine a routing table of the second data packet; a determining module, configured to determine a sending port of the second packet according to the routing table, where the sending port includes a multi-line interface and a border gateway interface; and the sending module is used for sending the second data packet to a client through the sending port.
In an exemplary embodiment of the disclosure, the parsing module is configured to parse a source address of the second packet to determine a routing table of the second packet according to the source address.
In an exemplary embodiment of the disclosure, the parsing module is further configured to determine that the routing table of the second data packet is a multi-line routing table when the source address in the second data packet is a multi-line address, and determine that the routing table of the second data packet is a border gateway routing table when the source address in the second data packet is a border gateway address.
In an exemplary embodiment of the disclosure, the determining module is configured to parse a destination address of the second packet, determine, through the multi-line routing table, that a sending port reaching the destination address is a multi-line interface, and determine, through the border gateway routing table, that a sending port reaching the destination address is a border gateway interface.
In an exemplary embodiment of the disclosure, when the second data packet is sent to the client through the sending port, the sending module is configured to send the second data packet to the client directly through the border gateway interface and/or transmit the second data packet to a virtual extended local area network tunnel through the multi-line interface, so as to send the second data packet to the client through the virtual extended local area network tunnel.
According to a fifth aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the above-described data transmission methods.
According to a sixth aspect of the present disclosure, there is provided an electronic device comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform any of the data transmission methods described above via execution of the executable instructions.
The present disclosure has the following beneficial effects:
the exemplary embodiment provides a data transmission method, a data transmission device, a computer readable storage medium and an electronic device, the method receives a first data packet through a receiving port, determines a routing table of the first data packet according to the type of the receiving port, determines an equivalent route of the first data packet according to the routing table, determines a host corresponding to the equivalent route as a target host, and sends the first data packet to the target host; and receiving a second data packet sent by the target host, and determining a sending port of the second data packet by determining a routing table of the second data packet, so as to send the second data packet to the client through the sending port, wherein the receiving port and the sending port may be the same interface, that is, may be a multi-line interface or a border gateway interface. On one hand, the exemplary embodiment realizes the multi-path transmission of the data packet through the multi-line interface and the border gateway interface, and different routing tables can be configured for the data packet by determining the routing table of the data packet, so that the transmission of the data packet in different paths can be realized through independent routing, and the efficiency and reliability of data transmission are improved; on the other hand, by determining the equivalent route of the first data packet and determining the host corresponding to the equivalent route as the target host, the balance of the host load can be realized, and the problem of system breakdown caused by overhigh host load is avoided; on the other hand, by integrating the multi-line interface and the boundary gateway interface, the shunting of the transmission data can be realized, and the transmission cost of a data transmission path is reduced to a greater extent.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is apparent that the drawings in the following description are only some embodiments of the present disclosure, and that other drawings can be obtained from those drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram showing a data transmission architecture in the related art;
FIG. 2 shows a schematic diagram of a data transmission architecture in the present exemplary embodiment;
FIG. 3 shows a flow chart of a data transmission method in the present exemplary embodiment;
fig. 4 shows a flowchart of another data transmission method in the present exemplary embodiment;
fig. 5 is a block diagram showing a configuration of a data transmission apparatus in the present exemplary embodiment;
fig. 6 is a block diagram showing the structure of another data transmission apparatus in the present exemplary embodiment;
FIG. 7 illustrates a computer-readable storage medium for implementing the above-described method in the present exemplary embodiment;
fig. 8 shows an electronic device for implementing the above method in the present exemplary embodiment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In one solution of the related art, each carrier network can be accessed through a multi-line access manner, and as shown in fig. 1, the data transmission architecture 100 includes a multi-line access switch 110, a multi-line switch 120, hosts 131, 132, and 133, and an external network 140. When the multi-line Access switch 110 receives a data packet sent by a user through the external network 140, the data packet may be sent to the multi-line switch 120, the multi-line switch 120 sends the data packet to all hosts through broadcasting, each host determines whether a Media Access Control (MAC) Address of the data packet matches itself, if the MAC Address matches itself, the multi-line switch 120 sends confirmation information to process the data packet, if the MAC Address does not match itself, the multi-line switch 120 ignores the data packet and does not process the data packet, and after receiving the confirmation information, the multi-line switch 120 adds the MAC Address of the host sending the confirmation information to an Address table so as to directly transmit the data packet according to the Address table next time. In this way, the packets are sent to the hosts through the multi-wire switch 120 in a two-layer manner, when the number of packets received by the multi-wire switch 120 is large, frequent packet broadcasting easily causes network performance degradation and even paralysis, and when the number of packets sent to the same MAC address is large, it easily causes a part of the hosts to be down due to too high load.
In view of one or more of the foregoing problems, an exemplary embodiment of the present disclosure first provides a data transmission method. The method can send the data packet to the corresponding target host when receiving the data packet sent by the client. The client may be a terminal device where a user who sends an access request through an operator network is located, and may be a computer, a smart phone, a tablet computer, or a Personal Digital Assistant (PDA) capable of surfing the internet, or the like; the target host is a computer device for processing the user access request, and the target host can be set to any number of computer devices for processing specific access requests according to the content, type and the like of the user access request.
Figure 2 illustrates a schematic diagram of a data transport architecture in the exemplary embodiment and as shown, data transport architecture 200 may include clients 210, multi-line access switches 220, border gateway switch 230, multi-line switch 240, and host node 250 may include a plurality of hosts such as hosts 251, 252, and 253 shown. In general, the multi-line access switch 220 and the border gateway switch 230 may be configured as a transmission device accessing an operator network, and the multi-line switch 240 may receive a data packet forwarded by the multi-line access switch 220 and the border gateway switch 230, and send the received data packet to any host in the host nodes 250 according to a corresponding routing policy; each host in host node 250 may be configured to receive and process packets sent by multi-wire switch 240. It should be understood that the number of hosts in FIG. 2 is merely illustrative and that there may be any number of hosts, as desired for an implementation.
The present exemplary embodiment is described in detail below with respect to the multi-wire switch 240 as the executing entity:
fig. 3 shows a flow of the data transmission method in the present exemplary embodiment, which may include the following steps S310 to S340:
step S310, a first data packet sent by a client is received through a receiving port, and the receiving port comprises a multi-line interface and a border gateway interface.
The receiving port may be a port or an interface for receiving and sending a data packet by a multi-line switch, and may generally be divided into a virtual port and a physical port, where the virtual port refers to a port inside a computer or inside a switch router, and is usually invisible, for example, an 80 port, a 21 port, and a 23 port in the computer, and the physical port may also be referred to as an interface, and is a visible port, for example, an RJ45 network port on a back panel of the computer, an RJ45 port of a switch router hub, and the like; the first data packet may be a data packet sent by a client where a user is located to the multi-line switch through an operator network; the multi-line interface is an interface for accessing a data packet from an independent interface of an operator such as telecom, mobile, Unicom, Internet and the like; the border gateway interface is an interface for accessing a data packet from a unified interface of an operator such as telecommunications, mobile, internet, etc., that is, the data packet received by the border gateway interface is transmitted to the multi-wire switch by the unified interface of each operator.
Typically, the first packet may be transmitted to the switch through a virtual extended local area network tunnel or a plurality of switching devices, and when the first packet arrives at the multi-wire switch, the receive port of the multi-wire switch may receive each first packet in turn. Specifically, the multi-line interface in the receiving port may be configured to receive a first data packet sent by each operator independent interface, specifically, in the data transmission architecture shown in fig. 2, the multi-line access switch 220 and the multi-line switch 240 may be connected through a virtual extended lan tunnel, and thus, the receiving port of the multi-line switch 240 may receive the first data packet transmitted by the multi-line access switch 220 through the virtual extended lan tunnel; the border gateway interface may be configured to receive the first data packet sent by the unified interface of each operator, and as shown in fig. 2, the border gateway interface may receive the first data packet through the physical network connection between border gateway switch 230 and multi-wire switch 240.
In the exemplary embodiment, the multi-line switch can simultaneously receive the first data packet through the multi-line interface and the border gateway interface, so that the reliability and efficiency of data packet transmission can be improved. Further, in order to reduce the occupation of the duplicate packets on the computer resources, in an alternative embodiment, after the first packet is received through step S310, the duplicate packets may also be repeatedly detected, so as to discard the repeatedly received packets.
Step S320, determining a routing table of the first data packet according to the type of the receiving port.
The routing table is a data table for storing paths pointing to a specific network address, and in some cases, the routing table may also store an overhead value of each path, that is, the number of hops and the bandwidth that need to be passed through.
Since the receiving port may be configured to receive data packets of different types or sources, the multi-lane switch may determine the type or source of the first data packet directly according to the type of the receiving port after receiving the first data packet, so as to determine the routing table of the first data packet.
Specifically, in an alternative embodiment, when the receiving port may include a multi-line interface or a border gateway interface, step S320 may be implemented by:
when the receiving port is a multi-line interface, determining that the routing table of the first data packet is a multi-line routing table;
and when the receiving port is a boundary gateway interface, determining that the routing table of the first data packet is a boundary gateway routing table.
The multiline routing table can include routing information of data packets received or transmitted via the multiline interface; the border gateway routing table may include routing information for packets accessed or transmitted via the border gateway interface. For example, the routing information configured in the multi-line routing table and the border gateway routing table is shown in tables 1 and 2 below, respectively:
TABLE 1 Multi-line routing Table
| Serial number | Routing |
| 0 | Default EdgeNode |
| 1 | Dstip eip_cidr look BroderRouteTable |
Table 2 border gateway routing table
| Serial number | Routing |
| 0 | Default bgp cr |
| 1 | Dstip eip nexthop ipA |
| 2 | Dstip eip nexthop ipB |
| 3 | Dstip eip nexthop ipC |
| 4 | Dstip eip*nexthop ipA |
| 5 | Dstip eip*nexthop ipB |
| 6 | Dstip eip*nexthop ipC |
Both the Default EdgeNode and the Default bgp cr are Default routes, both the eip and the eip are public network IP (Internet Protocol) addresses of an enterprise interacting with an external network, the eip is a multi-line address, the eip is a boundary gateway address, and a user can access enterprise services through any one or more of the two public network IP addresses; eip _ cidr is the address of the network segment to which eip belongs; gateway1 is the gateway to which the eip belongs; ipA, ipB and ipC are IP addresses of the respective hosts.
Further, in order to avoid the problem of multiple duplicate routes caused by configuring equivalent routes in the multi-line routing table and the border gateway routing table, in an alternative embodiment, the equivalent routes in the multi-line routing table and the border gateway routing table may be configured in the same routing table, for example, in one of the multi-line routing table and the border gateway routing table.
Step S330, determining the equivalent route of the first data packet according to the route table, so as to determine the host corresponding to the equivalent route as the target host.
The Equal-cost routing (ECMP) refers to a plurality of different routing paths with the same cost when reaching the same destination address or destination network segment, and is also called Equal-cost multipath.
After determining the routing table of the first packet, the destination address of the first packet may be analyzed, and the equivalent route of the packet arriving at the destination address may be looked up in the routing table, so that the host corresponding to the equivalent route is determined as the target host of the first packet.
When the number of the received first data packets is large, a plurality of identical hosts may be configured, and thus, in an alternative embodiment, step S330 may also be implemented by:
analyzing a destination address of a first packet to determine a plurality of equivalent routes of the first packet to the destination address through the routing table;
and selecting an available route according to the equivalent routes so as to determine the host corresponding to the available route as the target host.
The destination address may be a public IP address of the first data packet received by the enterprise, and may be, for example, eip and eip as shown in table 2.
After determining the routing table of the first packet, the multi-wire switch may parse the destination address of the first packet by reading the address data of the corresponding field in the first packet, for example, the head or the tail of the first packet may contain address information of the determined byte, and the multi-wire switch may determine the destination address of the packet by reading the address information of the byte, so as to determine a plurality of equivalent routes of the first packet reaching the destination address according to the routing information in the routing table, for example, in the border gateway routing table shown in table 2, the first packet having the destination address eip has three equivalent routes, which are Dstip nexthop ipA, Dstip nexthop ipB and Dstip nexthop ipC, respectively, and the routes are directed to the hosts, which are ipA, ipB and ipC, respectively.
After determining the equivalent route of the first packet, any route can be selected as a destination route, and a host to which the destination route points is determined as a destination host. In order to balance the load of each host, the switch may convert a source address, a destination address, a source port, a destination port, and a protocol of the first packet, as a packet quintuple, into a hash value by using a hash algorithm, so as to determine a destination host of the first packet according to the hash value, or the switch may record the number of first packets sent to each host, so as to send the newly received first packet to a host with a smaller number of current packets, or each host may also send its own load information to the switch at certain time intervals, such as every 1S or 2S, so that the switch sends the first packet according to the load condition of each host.
Compared with the traditional routing technology in which only one link can be utilized and other links are in a backup state or an invalid state, the method for determining the equivalent route of the first data packet can simultaneously use a plurality of links under the same network environment, can increase the transmission bandwidth and can also improve the reliability of data packet transmission to a certain extent.
Further, as mentioned above, since the multi-line routing table and the equivalent routing in the border gateway routing table may be configured in the same routing table, in an alternative embodiment, after the routing table of the first packet is determined through step S320, the first packet may be pulled into the routing table configured with the equivalent routing, specifically, taking the border gateway routing table as an example, after the routing table of the first packet is determined to be the multi-line routing table, the first packet may be pulled into the border gateway routing table according to the multi-line routing table. Since the border gateway routing table includes a plurality of equivalent routes, the equivalent route of the first packet can be further determined through the border gateway routing table, so that any available route is determined as the target host of the first packet. For example, in the multi-line routing table shown in table 1, the lookup table of the first packet with the destination address eip _ cidr is the border gateway routing table, so that the first packet can be pulled to the border gateway routing table, so as to determine the equivalent route of the first packet and the target host corresponding to the equivalent route through the border gateway routing table.
And step S340, sending the first data packet to a target host.
After determining the target host of the first packet, the first packet may be sent to the target host, so that the target host may process the first packet.
The exemplary embodiments of the present disclosure also provide a data transmission method, which may receive a data packet sent by a target host, and send the data packet to a client through a corresponding sending port.
Fig. 4 shows a flow of the data transmission method in the present exemplary embodiment, which may include the following steps S410 to S440:
and S410, receiving a second data packet sent by the target host.
The second packet is a packet generated by the target host and sent to the multi-wire switch, and may be a data return packet generated by the target host processing the first packet.
After the target host generates the second data packet, a gateway Address connected with the multi-line switch may be obtained through an Address Resolution Protocol (ARP), so that the multi-line switch may receive the second data packet sent by the target host through the gateway Address. After the target host acquires the gateway address connected with the multi-line switch through the address resolution protocol, the gateway address can be added into the address table, so that the second data packet can be directly sent to the multi-line switch through the gateway address in the address table when the second data packet is sent next time.
Step s420, the second data packet is analyzed to determine a routing table of the second data packet.
After receiving the second data packet, the switch may obtain address information and the like in the second data packet by reading information of a specific byte in the second data packet, so that a routing table of the second data packet may be determined according to the address information.
Typically, the second packet may have encapsulated therein a source address and a destination address of the packet, where the source address may be a public network IP address of the enterprise interacting with the external network, and the destination address may be a public network IP address of the external network or an IP address of the user client, such as a public network IP address of another enterprise local network. In an alternative embodiment, step S320 may parse the source address of the second packet by reading the information of the specific byte of the second packet, for example, may determine the public network IP address of the second packet, to determine the type of the second packet, so as to determine the routing table corresponding to the second packet.
In some cases, the source address of the second packet may include a plurality of addresses, for example, in the border gateway routing table shown in table 2, the source address of the second packet is a public IP address of the enterprise, i.e., a multiline address eip and a border gateway address eip, and thus, in an alternative embodiment, the foregoing parsing the source address of the second packet to determine the routing table of the second packet according to the source address may also be implemented by:
when the source address in the second data packet is a multi-line address, determining that the routing table of the second data packet is a multi-line routing table;
and when the source address in the second data packet is the border gateway address, determining that the routing table of the second data packet is the border gateway routing table.
Further, the second data packet may be sent to the corresponding routing table through a pre-configured policy route, for example, the second data packets with Source addresses eip _ cidr and eip _ cidr may be transmitted to the multiline routing table and the border gateway routing table respectively through the policy routes "Source eip _ cidr look muthate" and "Source eip _ cidr look BroderRouteTable", or the second data packet with Source address as a multiline address, such as eip _ cidr, may be transmitted to the multiline routing table and the border gateway routing table through the policy route, and the second data packet with Source address as a border gateway address, such as eip _ cidr, may be transmitted to the border gateway routing table by default. Wherein, eip _ cidr is the network segment address to which eip belongs.
And step S430, determining a sending port of the second data packet according to the routing table, wherein the sending port comprises a multi-line interface and a border gateway interface.
After determining the routing table of the second packet, the routing information of the second packet may be determined according to the routing table, and it may be determined according to the routing information that the transmission port of the second packet is a multi-line interface or a border gateway interface.
Specifically, in an optional embodiment, after determining the routing table of the second packet, the destination address of the second packet may be resolved, so as to determine the sending port of the second packet reaching the destination address according to the routing table, where the destination address may be an access address of an operator network or an address of a client where a user is located. For example, in the multi-line routing table and the border gateway routing table, the transmission ports of the second packet arriving at the destination address may be determined to be the multi-line interface and the border gateway interface, respectively, according to the default route in the routing table.
Step s440, the second data packet is sent to the client through the sending port.
After determining the transmission port of the second data packet according to step S430, the second data packet may be transmitted to the client through the transmission port. In particular, when there are a plurality of network nodes in a path to the client, the second packet may be transmitted to the next network node through the transmission port, so that the second packet is transmitted to the client through the next network node.
In an alternative embodiment, the second packet may be transmitted to the virtual extended lan tunnel through the multi-wire interface, so that the second packet is sent to the client through the virtual extended lan tunnel. Specifically, the multi-wire switch may add a VXLAN (Virtual extended Local Area Network) header to the second packet, where the VXLAN header may be used to encapsulate a VXLAN identifier, and the VXLAN identifier may be used to indicate a corresponding Virtual extended Local Area Network tunnel, and the second packet may be sent to the client through the Virtual extended Local Area Network tunnel corresponding to the VXLAN identifier. For example, in the data transmission architecture shown in fig. 2, since the multi-wire switch 240 and the multi-wire access switch 220 can be connected through the virtual extended lan, when the second data packet is sent to the client through the multi-wire interface, the multi-wire switch 240 can transmit the second data packet to the multi-wire access switch 220 through the virtual extended lan tunnel, and then further transmit the second data packet to the client 210 through the corresponding virtual extended lan tunnel through the multi-wire access switch 220.
In another alternative embodiment, the multi-wire switch may also forward the second packet to the switch device through the border gateway interface for direct transmission to the client through the switch device. For example, in the data transport architecture shown in fig. 2, multi-wire switch 120 may send the second packet to border gateway switch 230 via the border gateway interface, and thus directly to the client via border gateway switch 230.
In summary, the exemplary embodiment provides a data transmission method, which receives a first data packet through a receiving port, determines a routing table of the first data packet according to a type of the receiving port, determines an equivalent route of the first data packet according to the routing table, and determines a host corresponding to the equivalent route as a target host to send the first data packet to the target host; and receiving a second data packet sent by the target host, and determining a sending port of the second data packet by determining a routing table of the second data packet, so as to send the second data packet to the client through the sending port, wherein the receiving port and the sending port may be the same interface, that is, may be a multi-line interface or a border gateway interface. On one hand, the exemplary embodiment implements multi-path transmission of a data packet through a multi-line interface and a border gateway interface, and configures different routing tables for the data packet by determining the routing table of the data packet, so that transmission of the data packet on different paths can be implemented through independent routing, and the efficiency and reliability of data transmission are improved; on the other hand, by determining the equivalent route of the first data packet and determining the host corresponding to the equivalent route as the target host, the balance of the host load can be realized, and the problem of system breakdown caused by overhigh host load is avoided; on the other hand, by integrating the multi-line interface and the boundary gateway interface, the shunting of the transmission data can be realized, and the transmission cost of a data transmission path is reduced to a greater extent.
The present exemplary embodiment also provides a data transmission apparatus, and as shown in fig. 5, the data transmission apparatus 500 may include: a receiving module 510, which may be configured to receive a first data packet sent by a client through a receiving port, where the receiving port may include a multi-line interface and a border gateway interface; a first determining module 520, configured to determine a routing table corresponding to the first packet according to the type of the receiving port; a second determining module 530, configured to determine an equivalent route of the first packet according to the routing table, so as to determine a host corresponding to the equivalent routes as a target host; the sending module 540 may be configured to send the first data packet to the target host.
In an exemplary embodiment of the disclosure, the first determining module 520 may be configured to determine that the routing table of the first data packet is a multi-line routing table when the receiving port is a multi-line interface, and determine that the routing table of the first data packet is a border gateway routing table when the receiving port is a border gateway interface.
In an exemplary embodiment of the disclosure, when determining that the routing table of the first packet is a multi-line routing table, the first determining module 520 may be further configured to pull the first packet to the border gateway routing table according to the multi-line routing table.
In an exemplary embodiment of the disclosure, the second determining module 530 may be configured to parse a destination address of the first packet, to determine multiple equivalent routes of the first packet reaching the destination address through the routing table, and to select one available route according to the multiple equivalent routes, so as to determine a host corresponding to the available route as the target host.
The present exemplary embodiment also provides another data transmission apparatus, and as shown in fig. 6, the data transmission apparatus 600 may include: a receiving module 610, configured to receive a second data packet sent by the target host; a parsing module 620, configured to parse the second data packet to determine a routing table of the second data packet; a determining module 630, configured to determine a sending port of the second packet according to the routing table, where the sending port may include a multi-line interface and a border gateway interface; the sending module 640 may be configured to send the second data packet to the client through the sending port.
In an exemplary embodiment of the disclosure, the parsing module 620 may be configured to parse a source address in the second packet to determine a routing table of the second packet according to the source address.
In an exemplary embodiment of the disclosure, the parsing module 620 may be further configured to determine that the routing table of the second packet is a multi-line routing table when the source address in the second packet is a multi-line address, and determine that the routing table of the second packet is a border gateway routing table when the source address in the second packet is a border gateway address.
In an exemplary embodiment of the disclosure, the determining module 630 may be configured to resolve a destination address of the second packet, determine, through the multi-line routing table, that a sending port reaching the destination address is a multi-line interface, and determine, through the border gateway routing table, that a sending port reaching the destination address is a border gateway interface.
In an exemplary embodiment of the disclosure, when the second data packet is transmitted to the client through the transmitting port, the transmitting module 640 may be configured to transmit the second data packet to the client directly through the border gateway interface and/or transmit the second data packet to the virtual extended local area network tunnel through the multi-line interface, so as to transmit the second data packet to the client through the virtual extended local area network tunnel.
The specific details of each module in the above apparatus have been described in detail in the method section, and details of the undisclosed scheme may refer to the method section, and thus are not described again.
As will be appreciated by one skilled in the art, aspects of the present disclosure may be embodied as a system, method or program product. Accordingly, various aspects of the present disclosure may be embodied in the form of: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally be referred to herein as a "circuit," module "or" system.
Exemplary embodiments of the present disclosure also provide a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, various aspects of the disclosure may also be implemented in the form of a program product comprising program code for causing a terminal device to perform the steps according to various exemplary embodiments of the disclosure described in the above-mentioned "exemplary methods" section of this specification, when the program product is run on the terminal device.
Referring to fig. 7, a program product 700 for implementing the above method according to an exemplary embodiment of the present disclosure is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present disclosure is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations for the present disclosure may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
The exemplary embodiment of the present disclosure also provides an electronic device capable of implementing the above method. An electronic device 800 according to such an exemplary embodiment of the present disclosure is described below with reference to fig. 8. The electronic device 800 shown in fig. 8 is only an example and should not bring any limitations to the functionality and scope of use of the embodiments of the present disclosure.
As shown in fig. 8, electronic device 800 may take the form of a general purpose computing device. The components of the electronic device 800 may include, but are not limited to: the at least one processing unit 810, the at least one memory unit 820, a bus 830 connecting the various system components (including the memory unit 820 and the processing unit 810), and a display unit 840.
Wherein the storage unit 820 stores program code that may be executed by the processing unit 810 to cause the processing unit 810 to perform the steps according to various exemplary embodiments of the present disclosure described in the above section "exemplary method" of this specification. For example, processing unit 810 may perform the method steps shown in fig. 3-4, and so on.
The storage unit 820 may include readable media in the form of volatile storage units, such as a random access storage unit (RAM)821 and/or a cache storage unit 822, and may further include a read only storage unit (ROM) 823.
The electronic device 800 may also communicate with one or more external devices 900 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 800, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 800 to communicate with one or more other computing devices. Such communication may occur over input/output (I/O) interfaces 850. Also, the electronic device 800 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 860. As shown, the network adapter 860 communicates with the other modules of the electronic device 800 via the bus 830. It should be understood that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 800, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, to name a few.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functions of two or more modules or units described above may be embodied in one module or unit, according to exemplary embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Furthermore, the above-described figures are merely schematic illustrations of processes included in methods according to exemplary embodiments of the present disclosure, and are not intended to be limiting. It will be readily appreciated that the processes illustrated in the above figures are not intended to indicate or limit the temporal order of the processes. In addition, it is also readily understood that these processes may be performed, for example, synchronously or asynchronously in multiple modules.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the exemplary embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to make a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the exemplary embodiments of the present disclosure.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
Claims (13)
1. A method of data transmission, the method comprising:
receiving a first data packet sent by a client through a receiving port, wherein the receiving port comprises a multi-line interface and a border gateway interface;
determining a routing table of the first data packet according to the type of the receiving port;
determining an equivalent route of the first data packet according to the routing table so as to determine a host corresponding to the equivalent route as a target host;
and sending the first data packet to the target host.
2. The data transmission method according to claim 1, wherein the determining the routing table of the first packet according to the type of the receiving port comprises:
when the receiving port is a multi-line interface, determining that a routing table of the first data packet is a multi-line routing table;
and when the receiving port is a boundary gateway interface, determining that the routing table of the first data packet is a boundary gateway routing table.
3. The data transmission method of claim 2, wherein when the routing table of the first data packet is determined to be a multi-line routing table, the method further comprises:
and pulling the first data packet to the border gateway routing table according to the multi-line routing table.
4. The data transmission method according to claim 1, wherein the determining an equivalent route of the first packet according to the routing table to determine a host corresponding to the equivalent route as a target host includes:
resolving a destination address of the first data packet to determine a plurality of equivalent routes of the first data packet reaching the destination address through the routing table;
and selecting an available route according to the equivalent routes so as to determine the host corresponding to the available route as the target host.
5. A method of data transmission, the method comprising:
receiving a second data packet sent by the target host;
parsing the second packet to determine a routing table for the second packet;
analyzing a destination address of the second data packet to determine a sending port of the second data packet reaching the destination address according to the routing table, wherein the sending port comprises a multi-line interface and a border gateway interface;
and sending the second data packet to a client through the sending port.
6. The method according to claim 5, wherein the parsing the second packet to determine a routing table of the second packet comprises:
and analyzing the source address of the second data packet to determine a routing table of the second data packet according to the source address.
7. The data transmission method according to claim 6, wherein the parsing the source address of the second packet to determine the routing table of the second packet according to the source address comprises:
when the source address in the second data packet is a multi-line address, determining that a routing table of the second data packet is a multi-line routing table;
and when the source address in the second data packet is the border gateway address, determining that the routing table of the second data packet is a border gateway routing table.
8. The data transmission method according to claim 7, wherein the determining the sending port of the second packet according to the routing table includes:
resolving the destination address of the second data packet;
determining that a sending port reaching the destination address is a multi-line interface through the multi-line routing table;
and determining that the sending port reaching the destination address is a boundary gateway interface through the boundary gateway routing table.
9. The data transmission method according to claim 5, wherein when the second data packet is sent to the client through the sending port, the method includes:
sending the second data packet directly to the client through the border gateway interface; and/or
Transmitting the second data packet to a virtual extended local area network tunnel through the multi-wire interface, so as to send the second data packet to the client through the virtual extended local area network tunnel.
10. A data transmission apparatus, characterized in that the apparatus comprises:
the receiving module is used for receiving a first data packet sent by a client through a receiving port, and the receiving port comprises a multi-line interface and a border gateway interface;
a first determining module, configured to determine, according to the type of the receiving port, a routing table corresponding to the first packet;
a second determining module, configured to determine an equivalent route of the first packet according to the routing table, so as to determine a host corresponding to the equivalent route as a target host;
and the sending module is used for sending the first data packet to the target host.
11. A data transmission apparatus, characterized in that the apparatus comprises:
a receiving module, configured to receive a second data packet sent by the target host;
the analysis module is used for analyzing the second data packet to determine a routing table of the second data packet;
a determining module, configured to parse a destination address of the second packet, so as to determine, according to the routing table, a sending port of the second packet, where the sending port reaches the destination address, where the sending port includes a multi-line interface and a border gateway interface;
and the sending module is used for sending the second data packet to a client through the sending port.
12. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of any one of claims 1-9.
13. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the method of any of claims 1-9 via execution of the executable instructions.
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