Communication method, device and system

A communication method and technology of network equipment, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve problems such as inability to parse data packets correctly, and achieve the effect of ensuring normal communication

Active Publication Date: 2020-03-24
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

After receiving the data packet, PE1 parses the data packet according to the way the da

Method used

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  • Communication method, device and system
  • Communication method, device and system
  • Communication method, device and system

Examples

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[0042] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings. The network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0043] In this application, ordinal numbers such as "1", "2", "3", "first", "second" and "third" are used to distinguish multiple objects, and are not used to limit the order of multiple objects .

[0044] "A and / or B" mentioned in this application should be understood to include the followi...

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Abstract

The invention discloses a communication method, and according to the method, local terminal equipment and opposite terminal equipment mutually notify whether the home terminal equipment and the opposite terminal equipment have control word processing capability or not through a BGP message; after receiving the BGP message carrying the control word indication information sent by the local terminaldevice, the opposite terminal device determines that the local terminal device has the control word processing capability, and when the opposite terminal device also has the control word processing capability, the opposite terminal device sends a service message to the home terminal device, the opposite terminal device carries the control word. And when the home terminal equipment does not have the control word processing capability, the BGP message sent to the opposite terminal equipment does not carry the control word indication information, and the opposite terminal equipment does not carrythe control word when sending the service message to the home terminal equipment. Therefore, normal communication between the network equipment with the control word processing capability and the network equipment without the control word processing capability is effectively ensured, and the reliability of service transmission is improved.

Description

technical field [0001] The present application relates to the communication field, and in particular to a communication method, device and system in an Ethernet virtual private network (English: Ethernet Virtual Private Network, EVPN). Background technique [0002] EVPN is a virtual private network (English: Virtual Private Network, VPN) that provides Layer 2 network interconnection on a multi-protocol label switching (English: Multi-Protocol Label Switching, MPLS) network. Currently, EVPN technology is widely used in the network design of major operators as the mainstream solution for carrying Layer 2 VPN services. [0003] In order to avoid packet disorder caused by the same EVPN service flow being distributed to different forwarding paths by the operator (English: provider, P) equipment, the operator's edge (English: provider edge, PE) equipment A 4-byte control word is added to the sent EVPN service packet, and the value of the first 4 bits of the control word is 0. Th...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04L29/06H04L45/02H04L45/122H04L45/50H04L45/74
CPCH04L12/4641H04L69/06H04L69/22H04L45/033H04L45/566H04L45/66H04L45/04H04L12/4645H04L2012/4629H04L45/02H04L45/20H04L45/50H04L45/745
Inventor 刘兵社胡重阳
Owner HUAWEI TECH CO LTD
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