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A hardware address negotiation method and device

A hardware address and network address technology, applied in electrical components, data exchange through path configuration, digital transmission system, etc., can solve problems such as different hardware addresses, and achieve the effect of avoiding MAC migration

Active Publication Date: 2022-04-01
NEW H3C SECURITY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, when these distributed gateways receive data packets destined for terminals in the VSI, and multiple distributed gateways in the same VSI send ARP request packets with inconsistent hardware addresses, the terminals in the VSI will The hardware addresses of the same VSI gateway learned from the Internet are different, resulting in MAC migration.

Method used

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  • A hardware address negotiation method and device
  • A hardware address negotiation method and device
  • A hardware address negotiation method and device

Examples

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Embodiment Construction

[0012] A detailed description will be given with a plurality of examples shown in a plurality of drawings. In the following detailed description, numerous specific details are used to provide a thorough understanding of the present invention. Well-known methods, procedures, components and circuits have not been described in detail in order not to obscure the examples.

[0013] Among the terms used, the term "comprising" means including but not limited to; the term "comprising" means including but not limited to; the terms "above", "within" and "below" include the number; the terms "greater than" and "less than" mean not Include this number. The term "based on" means based on at least a portion thereof.

[0014] figure 2 The hardware address negotiation method provided by the illustrated embodiment of the present invention The hardware address negotiation method includes the following steps:

[0015] Step 201, sending a hardware address detection message according to the h...

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PUM

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Abstract

The present invention provides a hardware address negotiation method and device, wherein the method includes: sending a hardware address detection message according to the hardware address negotiation cycle; Forward hardware address detection packets sent by other EVPN gateways in the instance; determine that the EVPN gateway network address carried in the identified hardware address detection packet is consistent with the local EVPN gateway network address; when the identified hardware address detection packet carries the EVPN gateway hardware When the address is inconsistent with the local EVPN gateway hardware address, if the local EVPN gateway hardware address has a high priority, a response message with the primary identifier is sent according to the negotiated response cycle; if the identified hardware address is detected, the priority of the EVPN gateway hardware address carried in the message High, replace the hardware address of the local EVPN gateway, and send a response message with the slave ID according to the negotiated response cycle.

Description

technical field [0001] The invention relates to communication technology, in particular to a hardware address negotiation method and device. Background technique [0002] EVPN (Ethernet Virtual Private Network, Ethernet Virtual Private Network) is a Layer 2 VPN technology. The control plane uses MP-BGP to notify EVPN routing information, and the data plane uses VXLAN (Virtual Extensible Local Area Network, Virtual Extensible Local Area Network) protocol encapsulation The forwarded datagram. The EVPN gateway provides Layer 2 interconnection for users of the same subnet of the same VSI (Virtual Switch Instance, virtual forwarding instance); the EVPN gateway provides Layer 3 interconnection for users of different subnets in the VSI, and provides it with the external network. layer interconnection. Therefore, the distributed gateways of the same VSI need to be configured with the same hardware address. like figure 1 As shown, when these distributed gateways receive data pack...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L61/5046H04L12/46H04L12/66H04L45/74
CPCH04L12/4641H04L12/66H04L45/74H04L61/5046
Inventor 郭振华
Owner NEW H3C SECURITY TECH CO LTD