CN110581799A - Service flow forwarding method and device - Google Patents
Service flow forwarding method and device Download PDFInfo
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- CN110581799A CN110581799A CN201910788884.4A CN201910788884A CN110581799A CN 110581799 A CN110581799 A CN 110581799A CN 201910788884 A CN201910788884 A CN 201910788884A CN 110581799 A CN110581799 A CN 110581799A
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- service flow
- forwarding
- link aggregation
- aggregation interface
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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
- H04L45/245—Link aggregation, e.g. trunking
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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
- H04L45/30—Routing of multiclass traffic
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a method and a device for forwarding service flows, which relate to the field of data communication. By the method, the service flow can communicate from the appointed line according to the expectation of the client, the bandwidth, the time delay and the like of the appointed line can be ensured to better meet the quality requirements of the flow, the service effect and the like of the corresponding service flow, and the beneficial effect of fully utilizing the appointed line is achieved.
Description
Technical Field
The present invention relates to the field of data communications, and in particular, to a method and an apparatus for forwarding a service flow.
Background
link Aggregation Control Protocol (LACP) is a technology for binding a plurality of physical ports into one logical interface. The technology can treat a plurality of physical links as a single logical link, and allows two network devices to be connected in parallel through a plurality of ports to simultaneously transmit data, so that higher bandwidth and throughput are provided, and system stability is improved. When a link aggregation interface sends a message through a member port, a packet-by-packet mode or a stream-by-stream mode is generally adopted for forwarding, but both modes cannot forward a service stream from a designated member port according to user requirements, so that the service stream does not have a shortest path and bypasses, and thus the flow pressure in an upper-end network is increased. At present, the prior art cannot solve the problem of forwarding between link aggregation member ports according to the type of the traffic flow.
disclosure of Invention
The invention provides a method and a device for forwarding a service flow, which solve the problem that a user cannot forward the service flow according to the type of the service flow after using a link aggregation interface.
in a first aspect, the present invention provides a method for forwarding a service flow, including the following steps:
Creating a link aggregation interface, configuring rules for distinguishing service flow types, and setting a member port of the link aggregation interface corresponding to each service flow type according to the rules;
And after any service flow reaches the link aggregation interface, matching the service flow type of any service flow according to the rule, and forwarding the service flow from the corresponding member port.
Wherein the state of the member port is an active state. The setting of the member port of the link aggregation interface corresponding to each service flow type includes: and setting a plurality of member ports corresponding to each service flow type in the link aggregation interface. The forwarding from the corresponding member port includes: and determining the service flow type of any service flow according to the rule, and selecting one member port from a plurality of member ports corresponding to the service flow type of any service flow by adopting a load balancing algorithm for forwarding.
Preferably, the method further comprises: and recording the member port for forwarding any service flow into a forwarding table entry, and if the forwarding table entry does not have a matched service flow in a preset time, performing aging processing on the forwarding table entry.
Preferably, the method further comprises: and if the links of all the member ports corresponding to any service flow have faults, forwarding the service flow in the link aggregation interface according to a packet-by-packet mode or a stream-by-stream mode.
In this application, the configuring the rule for distinguishing the traffic flow type includes: configuring an incoming interface of a traffic flow, a DSCP field of an IP header of the traffic flow, or an ACL as a rule for distinguishing the type of the traffic flow. The setting of the member port of the link aggregation interface corresponding to each service flow type according to the rule includes: and setting the member port of the link aggregation interface corresponding to each service flow type by adopting a policy route.
In the embodiment of the invention, the member port of the link aggregation interface corresponding to each service flow type is set by distinguishing the service flow types, and after the service flow reaches the link aggregation interface, the function of forwarding from different member ports according to the service flow types is realized. By the method, the service flow can communicate from the appointed line according to the expectation of the client, the bandwidth, the time delay and the like of the appointed line can be ensured to better meet the quality requirements of the flow, the service effect and the like of the corresponding service flow, and the beneficial effect of fully utilizing the appointed line is achieved.
In a second aspect, the present invention provides a forwarding apparatus for a service flow, which specifically includes:
The configuration module is used for creating a link aggregation interface, configuring rules for distinguishing the types of the service flows, and setting a member port of the link aggregation interface corresponding to each type of the service flows according to the rules;
And the forwarding module is used for matching the service flow type of any service flow according to the rule after any service flow reaches the link aggregation interface and forwarding the service flow from the corresponding member port.
wherein the state of the member port is an active state. The configuration module is specifically configured to: and setting a plurality of member ports corresponding to each service flow type in the link aggregation interface. The forwarding module is specifically configured to: and after any service flow reaches the link aggregation interface, determining the service flow type of any service flow according to the rule, and selecting one member port corresponding to the service flow type of any service flow by adopting a load balancing algorithm for forwarding.
preferably, the forwarding module is further specifically configured to: and recording the member port for forwarding any service flow into a forwarding table entry, and if the forwarding table entry does not have a matched service flow in a preset time, performing aging processing on the forwarding table entry.
Preferably, the forwarding module is further specifically configured to: and if the links of all the member ports corresponding to any service flow have faults, forwarding the service flow in the link aggregation interface according to a packet-by-packet mode or a stream-by-stream mode.
in this application, the configuration module is specifically configured to: configuring an input interface of a service flow, a DSCP field or ACL of an IP head of the service flow as a rule for distinguishing the types of the service flow; and setting the member port of the link aggregation interface corresponding to each service flow type by adopting a policy route.
In the embodiment of the invention, the member port of the link aggregation interface corresponding to each service flow type is set by distinguishing the service flow types, and after the service flow reaches the link aggregation interface, the function of forwarding from different member ports according to the service flow types is realized. By the method, the service flow can communicate from the appointed line according to the expectation of the client, the bandwidth, the time delay and the like of the appointed line can be ensured to better meet the quality requirements of the flow, the service effect and the like of the corresponding service flow, and the beneficial effect of fully utilizing the appointed line is achieved.
drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram illustrating an application scenario provided by an embodiment of the present invention;
Fig. 2 is a flowchart illustrating a method for forwarding a service flow according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating a forwarding apparatus for a service flow according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The following are detailed descriptions of the respective embodiments.
Example one
The user network may include a plurality of different service flow types, and in this embodiment, two service flow types are taken as an example for description. For example, in the application scenario shown in fig. 1, the user services are divided into production services and office services, wherein the production service terminal is connected to the G110 port of the convergence device R1 through the access device R11, and then is forwarded from the G111 port to communicate with the production service server through the dedicated telecommunication line a. The office service terminal is connected to the G120 port of the convergence device R1 through the access device R12, and then is forwarded from the G121 port to communicate with the office service server through the special line B. Similarly, the production service server is connected to the G210 port of the convergence device R2 through the access device R21, and then is forwarded from the G211 port to communicate with the production service terminal through the private telecommunication line a. The office service server is connected to the G220 port of the convergence device R2 through the access device R22, and then is forwarded from the G221 port to communicate with the office service terminal through the special communication line B. The special telecommunication line A and the special communication line B are connected with a remote network of a user after passing through an operator network.
The embodiment of the invention provides a method for forwarding a service flow, a processing flow chart of which is shown in fig. 2, and the method comprises the following steps:
Step S201, a link aggregation interface is created, a rule for differentiating the types of the traffic flow is configured, and a member port of the link aggregation interface corresponding to each traffic flow type is set according to the rule.
As shown in fig. 1, a link aggregation interface 1 is created, and two ports G111 and G121 of the aggregation device R1 are two member ports of the link aggregation interface 1. The link aggregation interface 1 corresponds to two member links, namely a private telecommunication line a and a private communication line B, and is mainly used for forwarding service flows from a terminal to a server. In this embodiment, the convergence device R1 may be one physical device, or may be one logical device obtained by virtualizing multiple devices. Similarly, a link aggregation interface 2 is created, and the two ports G211, G221 of the aggregation device R2 are two member ports of the link aggregation interface 2. The link aggregation interface 2 corresponds to two member links, namely a dedicated telecommunication line a and a dedicated communication line B, and is mainly used for forwarding service flows from a server to a terminal. The sink device R2 may be one physical device or one logical device obtained by virtualizing a plurality of devices. The state of each member port of the link aggregation interface is an active state. Configuring rules for distinguishing traffic flow types, comprising: an ingress interface of a traffic flow, a Differentiated Services Code Point (DSCP) field of an IP header of the traffic flow, or an Access Control List (ACL) may be configured as a rule for distinguishing traffic flow types. For example, during the planning of the user network, terminals or servers of the production service and the office service may access different interfaces of the device, and through the incoming interface of the service flow, it may be distinguished whether the service flow belongs to the production service or the office service. As shown in fig. 1, on the convergence device R1, the production traffic flow rule is configured as follows: traffic on the aggregation device R1 coming in from interface G110. And matching according to the entry information of the message in the message descriptor and the production service flow rule, and setting a link aggregation forwarding outlet corresponding to the production service flow matched with the rule as a member port G111. The office business flow rule is configured as follows: traffic on the convergence device R1 coming from interface G120. And matching according to the entry information of the message in the message descriptor and the office business flow rule, and setting a link aggregation forwarding outlet corresponding to the office business flow matched with the rule as a member port G121. Similarly, at the convergence device R2, the production traffic flow rule is configured as follows: traffic on the aggregation device R2 coming in from interface G210. And matching according to the entry information of the message in the message descriptor and the production service flow rule, and setting a link aggregation forwarding outlet corresponding to the production service flow matched with the rule as a member port G211. The office business flow rule is configured as follows: traffic incoming from interface G220 on the convergence device R2. And matching according to the entry information of the message in the message descriptor and the office business flow rule, and setting a link aggregation forwarding outlet corresponding to the office business flow matched with the rule as a member port G221. Alternatively, the ACL rules can be matched to attributes such as source IP, destination IP, or quintuple. For example, a production service and an office service in a user network have different IP network segments, and by matching the source or destination IP of a service flow, it is possible to distinguish whether the service flow belongs to the production service or the office service. In addition, the traffic flow types can be distinguished by means of DSCP fields of IP headers in the traffic flows, and the like. Optionally, setting a member port of the link aggregation interface corresponding to each service flow type according to a rule includes: the member port of the link aggregation interface corresponding to each traffic flow type may be set by using policy routing and the like. It should be noted that, in the present invention, the link aggregation interface may be created on the same device or may be created across devices.
optionally, setting a member port of the link aggregation interface corresponding to each service flow type includes: each traffic type may be set to correspond to multiple member ports in the link aggregation interface.
Step S202, after any service flow reaches the link aggregation interface, the service flow type of any service flow is matched according to the rule, and the service flow is forwarded from the corresponding member port.
In this embodiment, if multiple member ports in the link aggregation interface corresponding to each traffic flow type are set, forwarding from the corresponding member ports includes: and determining the service flow type of any service flow according to the rule, and selecting one member port from a plurality of member ports corresponding to the service flow type of any service flow by adopting a load balancing algorithm for forwarding.
As a preferred embodiment of the present invention, the method further comprises: recording the member port for forwarding any service flow into the forwarding table entry, and if the forwarding table entry does not have a matched service flow in a preset time, performing aging processing on the forwarding table entry. The flow of the aging process belongs to the prior art, and is not described herein again. After the member port of any service flow is recorded in the forwarding table entry, the subsequent same service flow can directly search the corresponding member port in the forwarding table entry for forwarding, so as to improve the forwarding performance.
As another embodiment of the method of the present invention, the method further comprises: if all the member port links corresponding to any service flow are failed, any service flow can be forwarded in a packet-by-packet mode or a flow-by-flow mode in the link aggregation interface.
In the embodiment of the invention, the member port of the link aggregation interface corresponding to each service flow type is set by distinguishing the service flow types, and after the service flow reaches the link aggregation interface, the function of forwarding from different member ports according to the service flow types is realized. By the method, the service flow can communicate from the appointed line according to the expectation of the client, and the beneficial effect of fully utilizing the appointed line is achieved.
Example two
An embodiment of the present invention provides a forwarding device 30 for a service flow, a schematic diagram of which is shown in fig. 3, and the forwarding device includes:
A configuration module 301, configured to create a link aggregation interface, configure rules for differentiating traffic types, and set a member port of the link aggregation interface corresponding to each traffic type according to the rules;
And the forwarding module 302 is configured to, after any service flow reaches the link aggregation interface, match the service flow type of any service flow according to the rule, and forward the service flow from the corresponding member port.
Wherein the state of the member port is an active state. The configuration module 301 is specifically configured to: the incoming interface of the service flow, the DSCP field of the IP header of the service flow or the ACL can be configured as the rule for distinguishing the types of the service flow; and the member port of the link aggregation interface corresponding to each service flow type can be set by adopting a policy routing mode and the like.
Optionally, as an embodiment of the present application, the configuration module 301 is specifically configured to: and setting a plurality of member ports in the link aggregation interface corresponding to each service flow type. The forwarding module 302 is specifically configured to: and after any service flow reaches the link aggregation interface, determining the service flow type of any service flow according to a rule, and selecting one member port from a plurality of member ports corresponding to the service flow type of any service flow by adopting a load balancing algorithm for forwarding.
Preferably, the forwarding module 302 is further specifically configured to: recording the member port for forwarding any service flow into the forwarding table entry, and if the forwarding table entry does not have a matched service flow in a preset time, performing aging processing on the forwarding table entry. The flow of the aging process belongs to the prior art, and is not described herein again.
In this embodiment of the present invention, the forwarding module 302 is further specifically configured to: and if the links of all the member ports corresponding to any service flow have faults, forwarding any service flow in a link aggregation interface according to a packet-by-packet mode or a flow-by-flow mode.
In the embodiment of the invention, the member port of the link aggregation interface corresponding to each service flow type is set by distinguishing the service flow types, and after the service flow reaches the link aggregation interface, the function of forwarding from different member ports according to the service flow types is realized. By the method, the service flow can communicate from the appointed line according to the expectation of the client, and the beneficial effect of fully utilizing the appointed line is achieved.
All parts of the specification are described in a progressive mode, the same and similar parts of all embodiments can be referred to each other, and each embodiment is mainly introduced to be different from other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and the relevant points can be referred to the description of the method embodiment section.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a method for forwarding a traffic flow, the method comprising:
Creating a link aggregation interface, configuring rules for distinguishing service flow types, and setting a member port of the link aggregation interface corresponding to each service flow type according to the rules;
and after any service flow reaches the link aggregation interface, matching the service flow type of any service flow according to the rule, and forwarding the service flow from the corresponding member port.
2. The method of claim 1,
the setting of the member port of the link aggregation interface corresponding to each service flow type includes: setting a plurality of member ports in the link aggregation interface corresponding to each service flow type;
the forwarding from the corresponding member port includes: and determining the service flow type of any service flow according to the rule, and selecting one member port from a plurality of member ports corresponding to the service flow type of any service flow by adopting a load balancing algorithm for forwarding.
3. the method of claim 1, wherein the method further comprises: and recording the member port for forwarding any service flow into a forwarding table entry, and if the forwarding table entry does not have a matched service flow in a preset time, performing aging processing on the forwarding table entry.
4. The method of claim 1, wherein the method further comprises: and if the links of all the member ports corresponding to any service flow have faults, forwarding the service flow in the link aggregation interface according to a packet-by-packet mode or a stream-by-stream mode.
5. the method of any one of claims 1 to 4,
The rule for configuring the differentiated service flow types comprises the following steps: configuring an input interface of a service flow, a DSCP field or ACL of an IP head of the service flow as a rule for distinguishing the types of the service flow;
the setting of the member port of the link aggregation interface corresponding to each service flow type according to the rule includes: and setting the member port of the link aggregation interface corresponding to each service flow type by adopting a policy route.
6. An apparatus for forwarding a traffic flow, the apparatus comprising:
the configuration module is used for creating a link aggregation interface, configuring rules for distinguishing the types of the service flows, and setting a member port of the link aggregation interface corresponding to each type of the service flows according to the rules;
And the forwarding module is used for matching the service flow type of any service flow according to the rule after any service flow reaches the link aggregation interface and forwarding the service flow from the corresponding member port.
7. The apparatus of claim 6,
the configuration module is specifically configured to: setting a plurality of member ports in the link aggregation interface corresponding to each service flow type;
The forwarding module is specifically configured to: and after any service flow reaches the link aggregation interface, determining the service flow type of any service flow according to the rule, and selecting one member port corresponding to the service flow type of any service flow by adopting a load balancing algorithm for forwarding.
8. The apparatus of claim 6, wherein the forwarding module is further specifically configured to: and recording the member port for forwarding any service flow into a forwarding table entry, and if the forwarding table entry does not have a matched service flow in a preset time, performing aging processing on the forwarding table entry.
9. The apparatus of claim 6, wherein the forwarding module is further specifically configured to: and if the links of all the member ports corresponding to any service flow have faults, forwarding the service flow in the link aggregation interface according to a packet-by-packet mode or a stream-by-stream mode.
10. the apparatus of any one of claims 6-9, wherein the configuration module is specifically configured to: configuring an input interface of a service flow, a DSCP field or ACL of an IP head of the service flow as a rule for distinguishing the types of the service flow; and setting the member port of the link aggregation interface corresponding to each service flow type by adopting a policy route.
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| CN201910788884.4A CN110581799A (en) | 2019-08-29 | 2019-08-29 | Service flow forwarding method and device |
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| CN201910788884.4A CN110581799A (en) | 2019-08-29 | 2019-08-29 | Service flow forwarding method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114268646A (en) * | 2021-12-13 | 2022-04-01 | 深圳供电局有限公司 | Method and system for communication through unified communication slot |
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| CN102148768A (en) * | 2011-05-26 | 2011-08-10 | 杭州华三通信技术有限公司 | Message forwarding method and device |
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