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Flow forwarding method, device and system

A traffic forwarding and traffic technology, applied in the field of network communication, can solve the problems of high bandwidth requirements of IPL links and increase the service burden of IPL links, so as to improve forwarding reliability, reduce the burden of IPL links, and reduce service packets. the missing effect

Active Publication Date: 2020-05-12
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Currently, when the DR interface of a member device used to forward traffic in a distributed aggregation DR group fails, the traffic to be forwarded will be forwarded to the neighboring member device through the intermediate IPL link, and then forwarded through the neighboring member device. IPL link bandwidth requirements are high, increasing the service burden of IPL links

Method used

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  • Flow forwarding method, device and system
  • Flow forwarding method, device and system
  • Flow forwarding method, device and system

Examples

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example 1

[0160] Such as Figure 3a As shown, the DR group includes two member devices VTEP B and VTEP C, VTEP B and VTEP C are connected to the user edge CE device CE A (traffic receiving device) through the distributed aggregation DR port, CE A communicates with the user edge CE device through two physical ports Aggregated DR port connections. The actual IP addresses on VTEP B and VTEP C are 1.1.1.1 and 2.2.2.2 respectively, and VTEP B and VTEP C respectively record the actual IP addresses of their peer member devices and the status of the DR port, that is, VTEP B records the address as 2.2. 2.2 and DR port state is UP, VTEP C record address is 1.1.1.1 and DR port state is DOWN. When the DR ports of VTEP B and VTEP C are both UP, VTEP B and VTEP C advertise the virtual IP address 3.3.3.3 to the outside world, and the DR group establishes the VXLAN tunnel tunnel0 between the DR group and VTEP D through the virtual IP address. , to communicate with the traffic sending device (VTEP D)....

example 2

[0175] Such as Figure 3c As shown, the DR group includes four member devices VTEP B, VTEP C, VTEP E, and VTEP F, and VTEP B, VTEP C, VTEP E, and VTEP F are connected to the user edge CE device CE A through a distributed aggregation DR port ( Traffic receiving device), CE A is connected to the aggregation DR port through four physical ports. The DR port status of each member device is initially UP, and each member device in the DR group records the actual IP address and DR port status of each member device. For example, VTEP B records the corresponding Actual IP address and DR port status.

[0176] The actual IP address on VTEP B is 1.1.1.1, the actual IP address on VTEP C is 2.2.2.2, the actual IP address on VTEP E is 1.1.1.2, the actual IP address on VTEP F is 2.1.1.1, VTEP B , VTEP C, VTEP E, and the virtual IP address 3.3.3.3 announced by the four devices of VTEP C, VTEP E, and VTEPF. D) Communication.

[0177] When VTEP B detects that the link connected to CE A fails,...

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Abstract

The present disclosure relates to a traffic forwarding method, device and system. The method includes: when it is detected that the link between the member device and the flow receiving device fails, send a message including the DR interface of the member device to other member devices in the DR group. The first synchronization message of the fault state, the first synchronization message is used to notify other member devices of the DR port status of the member device; determine the non-failure member devices in the DR group, and determine the user device from the non-failure member devices For the proxy member device forwarding traffic, generate a first route according to the actual IP address of the proxy member device; notify the traffic sending device of the first route, and the first route is used to prevent the DR port failure of this member device Afterwards, the traffic that the traffic sending device intends to forward through the member device is forwarded through the tunnel between the traffic sending device and the proxy member device. According to the traffic forwarding method and device of the present disclosure, the loss of service packets caused by insufficient bandwidth of the IPL link is reduced, and the forwarding reliability is improved.

Description

technical field [0001] The present disclosure relates to the technical field of network communication, and in particular to a traffic forwarding method, device and system. Background technique [0002] In order to improve the high reliability of the network, a distributed aggregation scheme is usually adopted. The basic idea of ​​the distributed aggregation scheme is to allow multiple access devices to perform link aggregation negotiation with the connected device in the same state. From the perspective of the incoming device, it is as if a link aggregation relationship has been established with a device. [0003] Distributed aggregation has two basic concepts, IPP port and DR port. [0004] Wherein, an IPP (Intra-Portal Port, internal control link port) port refers to a Layer 2 aggregation interface used for internal control by connecting to neighboring member devices of the DR group. Each DR member device has only one IPP port, and the IPP ports of the DR member devices ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04L12/741H04L29/08H04L45/28H04L45/74
Inventor 唐成黄李伟
Owner NEW H3C TECH CO LTD
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