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A message forwarding method and device in a vxlan network

A packet forwarding and network technology, applied in the field of network communication, to achieve the effect of multi-path sharing

Active Publication Date: 2019-03-29
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

VTEP10 and VTEP11 are connected to the VXLAN network in data center 1, and VTEP2 is connected to the VXLAN network in data center 2. If there are two VTEP devices in the same data center 1 in the current VXLAN network, the two VTEP devices cannot back up each other at the same time. access to the VXLAN network through the same mode, and cannot form a backup in the entire network

Method used

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  • A message forwarding method and device in a vxlan network
  • A message forwarding method and device in a vxlan network
  • A message forwarding method and device in a vxlan network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, the ENDS (EVI Neighbor Discovery Server) in the VXLAN instance receives the registration information of the ENDC (EVI Neighbor Discovery Client). According to the registration information of each ENDC, the ENDCs in the same aggregation set are elected as Masters, and one of the VTEP devices is selected as the aggregation The master (Master) device in the set, and other devices are all slave (Backup) devices. The Master device in the aggregation set is responsible for notifying the user MAC address of the data center to other remote VTEPs in the VXLAN instance through the ESADI protocol message. equipment.

[0026] Among them, when configuring a VXLAN instance, you can specify ENDS in the VXLAN instance, ENDS is also a VTEP device in the VXLAN instance, and other VTEP devices are ENDC. The ENDC actively registers with the ENDS through the ENDP (EVI Neighbor Discovery Protocol, EVI Neighbor Discovery Protocol) registration request message, and the ENDS regularly no...

Embodiment 2

[0070] The second embodiment of the present invention is as image 3 In the VXLAN network shown, VTEP10, VTEP11, and VTEP12 are connected to the VXLAN network in data center 1, VTEP2 is connected to the VXLAN network in data center 2, and VTEP3 is connected to the VXLAN network in data center 3. VTEP10, VTEP11, and VTEP12 are connected to user equipment PC10, PC11, PC12, and PC13 through a Layer 2 switch; VTEP2 is connected to user equipment PC20; VTEP3 is connected to user equipment PC30. The same VXLAN instance 1 is created on VTEP10, VTEP11, VTEP12, VTEP2, and VTEP3. At the same time, the same VXLAN instance 2 is also created on VTEP10, VTEP11, VTEP12, VTEP2, and VTEP3.

[0071] User devices PC10 and PC11 are connected to VTEP10 through user-side interfaces and belong to VXLAN instance 1.

[0072] User devices PC10 and PC11 are connected to VTEP11 through user-side interfaces and belong to VXLAN instance 1.

[0073] User devices PC10 and PC11 are connected to VTEP12 thro...

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Abstract

The invention discloses a message forwarding method and device in a VXLAN network. The method includes: when the VTEP is used as the master device in the aggregation set, after learning the MAC address of the local user equipment, the protocol message is sent to the VXLAN tunnel pair in the VXLAN instance. The end VTEP notifies the MAC address of the user equipment and the GROUP ID corresponding to the main equipment, so that the opposite end VTEP saves the correspondence between the MAC address of the user equipment and the GROUP ID, and the tunnel established with the VETP in the same GROUP ID It is an equal-cost path; when the data packet forwarded from the peer VTEP of the VXLAN tunnel to the data center arrives at the slave device in the aggregation set, the master device receives the data packet forwarded by the slave device, searches it according to the destination MAC address, and sends it to local user equipment. In this way, multi-path sharing from the peer VTEP to the local data center is realized.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a message forwarding method and device in a VXLAN network. Background technique [0002] VXLAN is a MAC-in-UDP technology. It sets a new network segmentation mode on the 2.5 layer of the network and adds a 24bit segment identifier, which greatly expands the logic that can be supported in the cloud computing environment. The number of networks; and it makes the workload separate from the physical network, so that the logical network can span the IP network. [0003] The current VXLAN networking diagram is as follows: figure 1 shown. The virtual channel terminal (VTEP) device (encapsulation and decapsulation VXLAN device) can be a virtual switch (vSwitch) of a physical server or a physical switch. VTEP10 and VTEP11 are connected to the VXLAN network in data center 1, and VTEP2 is connected to the VXLAN network in data center 2. If there are two VTEP devices in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/46H04L45/74
Inventor 宋小恒
Owner NEW H3C TECH CO LTD