CN108183859B - Internet traffic scheduling method and system - Google Patents
Internet traffic scheduling method and system Download PDFInfo
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- CN108183859B CN108183859B CN201711443418.XA CN201711443418A CN108183859B CN 108183859 B CN108183859 B CN 108183859B CN 201711443418 A CN201711443418 A CN 201711443418A CN 108183859 B CN108183859 B CN 108183859B
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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
- H04L45/38—Flow based 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
- H04L45/54—Organization of routing tables
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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
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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
- H04L47/33—Flow control; Congestion control using forward notification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
- H04L49/252—Store and forward routing
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Abstract
The application provides an internet traffic scheduling method and system, which are applied to an internet traffic scheduling system, wherein the internet traffic scheduling system comprises internet traffic scheduling special equipment, the internet traffic scheduling special equipment is connected with a service system and is connected with each router in a target network, and the method comprises the following steps: the Internet traffic scheduling special equipment receives the routing strategy configuration issued by the service system; wherein, the next hop address in the route strategy configuration is the IP address of the service system; the Internet traffic scheduling special equipment issues routing information to each router in the target network based on a BGP protocol; and the next hop address in the routing information is the IP address of the service system. And each router in the target network generates a routing table item reaching the service system. By adopting the technical method, the requirement on the forwarding performance of the routers which are connected with the service system and belong to the same autonomous system is lowered.
Description
Technical Field
The present application relates to the field of network communication technologies, and in particular, to a method and a system for scheduling internet traffic.
Background
In the internet, routers act as the principal for traffic forwarding. In order to realize the forwarding of the traffic, the router needs to learn the network topology and the routing calculation. In the prior art, the routing Protocol for learning the network topology includes OSPF (Open short Path First), BGP (Border Gateway Protocol), and the like.
The internet is divided into a plurality of autonomous systems, the OSPF protocol is used for route learning in the autonomous systems, and the BGP protocol is used for route learning between the autonomous systems. And each router calculates the route reaching the rest routers through the learned network topology and generates a corresponding routing table. When the router receives the traffic, a forwarding path of the traffic may be determined based on the routing table, and the traffic may be forwarded based on the forwarding path.
Referring to fig. 1, fig. 1 is a diagram of a network architecture for traffic processing of traffic in a service system according to the prior art.
As shown in fig. 1, the routers connected to the service system are connected to each router in the target network. The router connected with the service system and the target network belong to different autonomous systems. The router connected to the service system performs route learning by the BGP protocol, and issues route information (the next hop is the router connected to the service system) to each router in the target network. After each router in the target network receives the routing information issued by the router connected with the service system, each router generates a routing table entry reaching the router connected with the service system.
When the traffic in the target network needs to be transmitted to the service system, each router in the target network needs to forward the traffic to the router connected to the service system, and then the router forwards the traffic to the service system. Because all the traffic needing to be transmitted to the service system in the target network needs to pass through the router connected with the service system, when the amount of the traffic needing to be transmitted to the service system in the target network is huge, the requirement on the forwarding performance of the router connected with the service system is higher.
Disclosure of Invention
In view of this, the present application provides an internet traffic scheduling method and system, where the internet traffic scheduling method is applied to the internet traffic scheduling system, and is used to reduce a requirement on forwarding performance of an internet traffic scheduling dedicated device connected to a service system.
Specifically, the method is realized through the following technical scheme:
an internet traffic scheduling method is applied to an internet traffic scheduling system, the internet traffic scheduling system comprises internet traffic scheduling special equipment, the internet traffic scheduling special equipment is connected with a service system and is connected with each router in a target network, wherein the target network and the internet traffic scheduling special equipment are located in different autonomous systems, and the method comprises the following steps:
the Internet traffic scheduling special equipment receives the routing strategy configuration issued by the service system; wherein, the next hop address in the route strategy configuration is the IP address of the service system;
the Internet traffic scheduling special equipment issues routing information to each router in the target network based on a BGP protocol; and the next hop address in the routing information is the IP address of the service system.
And each router in the target network generates a next hop address as an IP address routing table entry of the service system.
An internet traffic scheduling system, the internet traffic scheduling system including dedicated internet traffic scheduling equipment, the dedicated internet traffic scheduling equipment being connected to a service system and to each router in a target network, wherein the target network and the dedicated internet traffic scheduling equipment are located in different autonomous systems, comprising:
the internet traffic scheduling special equipment is used for receiving the routing strategy configuration sent by the service system; wherein, the next hop address in the route strategy configuration is the IP address of the service system;
the Internet traffic scheduling special equipment is also used for issuing routing information to each router in the target network based on a BGP protocol; and the next hop address in the routing information is the IP address of the service system.
And each router in the target network generates a next hop address as an IP address routing table entry of the service system.
The technical method provided by the application has the following beneficial effects:
in the present application, each router in the target network establishes a physical connection with the service system. Although the service system cannot establish logical connection by actively issuing routing information to each router in the target network, the service system can send routing policy configuration to the internet traffic scheduling dedicated device connected with the service system, wherein the next hop address in the routing policy configuration is the IP address of the service system. After receiving the routing strategy configuration sent by the service system, the internet traffic scheduling special device can learn the routing through the BGP protocol, and issue routing information to each router in a target network connected with the internet traffic scheduling special device, wherein the next hop address in the routing information is the IP address of the service system. After receiving the routing information issued by the internet traffic scheduling special device, each router in the target network can create a routing table entry generating the next hop address as the IP address of the service system. Therefore, in the application, when each router in the target network receives the traffic sent to the service system, the router can directly send the traffic to the service system, so that the requirement on the forwarding performance of the internet traffic scheduling special equipment connected with the service system is reduced.
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Fig. 1 is a network architecture diagram illustrating a traffic system performing traffic processing on traffic according to the prior art;
fig. 2 is a network architecture diagram illustrating an internet traffic scheduling according to an embodiment of the present application;
fig. 3 is a flowchart of an internet traffic scheduling method according to the second embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the prior art, as shown in fig. 1, a router connected to a service system is connected to each router in a target network. The router connected with the service system and the target network belong to different autonomous systems. The router connected to the service system performs route learning by the BGP protocol, and issues route information (the next hop is the router connected to the service system) to each router in the target network. After each router in the target network receives the routing information issued by the router connected with the service system, each router generates a reachable route to the router connected with the service system.
When the traffic in the target network needs to be transmitted to the service system, each router in the target network needs to forward the traffic to the router connected to the service system, and then the router forwards the traffic to the service system. Because all the traffic needing to be transmitted to the service system in the target network needs to pass through the router connected with the service system, when the amount of the traffic needing to be transmitted to the service system in the target network is huge, the requirement on the forwarding performance of the router connected with the service system is higher.
Example one
In order to reduce the requirement on the forwarding performance of the internet traffic scheduling dedicated device connected to the service system, an embodiment of the present application shows an internet traffic scheduling system. Referring to fig. 2, fig. 2 is a network architecture diagram illustrating internet traffic scheduling according to an embodiment of the present application.
As shown in fig. 2, in this embodiment, the internet traffic scheduling system includes an internet traffic scheduling dedicated device, and the internet traffic scheduling dedicated device is connected to a service system and each router in a target network, where the target network and the internet traffic scheduling dedicated device are located in different autonomous systems.
The internet traffic scheduling special equipment is used for receiving the routing strategy configuration sent by the service system; wherein, the next hop address in the route strategy configuration is the IP address of the service system;
the Internet traffic scheduling special equipment is also used for issuing routing information to each router in the target network based on a BGP protocol; and the next hop address in the routing information is the IP address of the service system.
Each router in the target network is used for generating a routing table entry reaching the service system.
The internet traffic scheduling dedicated device may be a dedicated device having a BGP route learning function, or may be a router.
In this embodiment, any target router in the target network is configured to perform ARP learning based on an IP address of the service system when receiving traffic sent to the service system; and the ARP table entry is used for creating and generating a corresponding ARP table entry after receiving a response message returned by the service system.
In addition, the target router is also used for determining a target port for receiving the response message after receiving the response message returned by the service system; and the ARP table entry is used for establishing a corresponding relation between the target port and the ARP table entry. And the system is also used for sending the received flow sent to the service system through the target port.
Example two
In order to reduce the requirement on the forwarding performance of the internet traffic scheduling dedicated device connected to the service system, the second embodiment of the present application shows an internet traffic scheduling method, which is applied to the internet traffic scheduling system shown in the first embodiment of the present application. Referring to fig. 3, fig. 3 is a flowchart of an internet traffic scheduling method according to an embodiment of the present application, which is applied to an internet traffic scheduling system and specifically executes the following steps:
step 301: the Internet traffic scheduling special equipment receives the routing strategy configuration issued by the service system; wherein, the next hop address in the route strategy configuration is the IP address of the service system;
step 302: the Internet traffic scheduling special equipment issues routing information to each router in the target network based on a BGP protocol; and the next hop address in the routing information is the IP address of the service system.
Step 303: and each router in the target network generates a next hop address as an IP address routing table entry of the service system.
In order to realize that the traffic needing to be analyzed by the service system in the target network is directly transmitted to the service system, each router in the target network needs to be physically connected with the service system. Since the service system cannot learn BGP routes and publish routing information, the service system cannot actively establish virtual connections with routers in the target network.
In this embodiment, an internet traffic scheduling dedicated device is added to the internet, where the internet traffic scheduling dedicated device may be a dedicated device with a BGP route learning function, or may be a router.
As shown in fig. 2, the internet traffic scheduling dedicated device is connected to each router in the target network and simultaneously connected to the service system. The special Internet traffic scheduling equipment is connected with the service system through a main control board card management port and is connected with each router in the target network through a service board card interface.
In order to implement that when each router in the target network receives the traffic that needs to be sent to the service system, the traffic is directly sent to the service system, instead of forwarding the traffic to the service system through the router connected to the service system as shown in fig. 1, each router in the target network needs to set the next hop address as the routing table entry of the IP address of the service system.
Because the service system cannot actively issue the routing information, in the embodiment of the present application, the service system may send the routing policy configuration information to the internet traffic scheduling dedicated device connected to the service system, perform BGP route learning by the internet traffic scheduling dedicated device, and issue the routing information using the IP address of the service system as the next hop address.
In this embodiment, when the control board management port of the internet traffic scheduling dedicated device receives a routing policy configuration issued by the service system, a corresponding routing table entry may be generated based on the routing policy configuration. Wherein, the next hop address in the route strategy configuration is the IP address of the service system. That is, when receiving the routing policy configuration, the internet traffic scheduling dedicated device generates a routing table entry whose next hop address is the IP address of the service system.
In addition, the dedicated internet traffic scheduling device may perform route learning based on the BGP protocol and issue routing information to each router in the target network, where a next hop address in the routing information is an IP address of the service system.
When each router in the target network receives the routing information issued by the internet traffic scheduling special device, each router can generate a routing table entry of which the next hop address is the IP address of the service system, and store the routing table entry. When any target router in the target network receives the traffic sent to the service system, the target router may find the routing table entry matched with the traffic, and forward the traffic to the service system based on the matching routing table entry.
The routing table entry is network layer data, and the forwarding of the traffic finally needs to be performed through encapsulation of a data link layer and then through a physical layer. Therefore, the destination router also needs to know the MAC address of the traffic system and the port on which the traffic is sent.
In this embodiment, when any target router in the target network receives traffic sent to the service system for the first time, the target router may perform ARP learning based on the next-hop address in the routing table entry, that is, the IP address of the service system.
Specifically, the target router may broadcast an ARP request packet to the outside through the other ports except the port that receives the traffic, where the ARP request packet carries an IP address of the service system. After the service system receives the ARP request message, it can be determined that the IP address carried in the ARP request message is the same as the home terminal IP address, so the service system can obtain the MAC address of the home terminal and return a response message to the target router, where the response message carries the MAC address of the home terminal.
After receiving a response message returned by the service system, the target router may create a corresponding ARP entry based on the MAC address carried in the response message and the IP address of the service system, where the ARP entry records a mapping relationship between the MAC address and the IP address of the service system.
In addition, in this embodiment, when the target router receives a response packet returned by the service system, it may be determined that the target port that receives the response packet is a physical port when the target router sends traffic to the service system. The target router may establish a correspondence between an ARP entry that is created based on the MAC address carried in the reply message and the IP address of the service system, and the target port.
Therefore, when the target router receives the traffic that needs to be sent to the service system, the target router may match the routing table entry whose next hop address is the IP address of the service system based on the destination IP address in the traffic. And then, searching a corresponding ARP table entry based on the IP address of the service system, and acquiring the MAC address of the service system from the ARP table entry. The target router can perform two-layer encapsulation based on the MAC address of the service system, and finally sends the flow to the service system through a target port corresponding to the ARP table entry.
In summary, in the present application, each router in the target network establishes a physical connection with the service system. Although the service system cannot establish logical connection by actively issuing routing information to each router in the target network, the service system can send routing policy configuration to the internet traffic scheduling dedicated device connected with the service system, wherein the next hop address in the routing policy configuration is the IP address of the service system. After receiving the routing strategy configuration sent by the service system, the internet traffic scheduling special device can learn the routing through the BGP protocol, and issue routing information to each router in a target network connected with the internet traffic scheduling special device, wherein the next hop address in the routing information is the IP address of the service system. After receiving the routing information issued by the internet traffic scheduling special device, each router in the target network can create a routing table entry generating the next hop address as the IP address of the service system. Therefore, in the application, when each router in the target network receives the traffic sent to the service system, the router can directly send the traffic to the service system, so that the requirement on the forwarding performance of the internet traffic scheduling special equipment connected with the service system is reduced.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (8)
1. An internet flow scheduling method is applied to an internet flow scheduling system and is characterized in that the internet flow scheduling system comprises internet flow scheduling special equipment, the internet flow scheduling special equipment is connected with a service system and is connected with each router in a target network, wherein the target network and the internet flow scheduling special equipment are positioned in different autonomous systems, and a physical connection which does not pass through the internet flow scheduling special equipment and is used for transmitting the flow sent to the service system by each router in the target network is established between each router in the target network and the service system; the method comprises the following steps:
the Internet traffic scheduling special equipment receives the routing strategy configuration issued by the service system; wherein, the next hop address in the route strategy configuration is the IP address of the service system;
the Internet traffic scheduling special equipment issues routing information to each router in the target network based on a BGP protocol; wherein, the next hop address in the routing information is the IP address of the service system;
and each router in the target network generates a routing table entry of which the next hop address is the IP address of the service system.
2. The method of claim 1, further comprising:
when any target router in the target network receives the flow sent to the service system for the first time, ARP learning is carried out based on the IP address of the service system;
and after receiving a response message returned by the service system, creating and generating a corresponding ARP table entry.
3. The method of claim 2, further comprising:
after the target router receives a response message returned by the service system, determining a target port for receiving the response message;
and establishing a corresponding relation between the target port and the ARP table entry.
4. The method of claim 3, further comprising:
and the target router sends the received flow sent to the service system through the target port.
5. An internet traffic scheduling system is characterized in that the internet traffic scheduling system comprises internet traffic scheduling special equipment, the internet traffic scheduling special equipment is connected with a service system and is connected with each router in a target network, wherein the target network and the internet traffic scheduling special equipment are positioned in different autonomous systems, and a physical connection which does not pass through the internet traffic scheduling special equipment and is used for transmitting traffic sent to the service system by each router in the target network is established between each router in the target network and the service system; the system comprises:
the internet traffic scheduling special equipment is used for receiving the routing strategy configuration sent by the service system; wherein, the next hop address in the route strategy configuration is the IP address of the service system;
the Internet traffic scheduling special equipment is also used for issuing routing information to each router in the target network based on a BGP protocol; wherein, the next hop address in the routing information is the IP address of the service system;
and each router in the target network generates a routing table entry of which the next hop address is the IP address of the service system.
6. The system of claim 5, comprising:
any target router in the target network is used for carrying out ARP learning based on the IP address of the service system when receiving the flow sent to the service system for the first time; and the ARP table entry is used for creating and generating a corresponding ARP table entry after receiving a response message returned by the service system.
7. The system of claim 6, comprising:
the target router is also used for determining a target port for receiving the response message after receiving the response message returned by the service system; and the ARP table entry is used for establishing a corresponding relation between the target port and the ARP table entry.
8. The system of claim 7, comprising:
the target router is further configured to send the received traffic sent to the service system through the target port.
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