MAC address information synchronization method and device based on CAS VXLAN

A technology of MAC address and MAC address table, which is applied in the direction of data exchange, transmission system, and energy consumption reduction through path configuration. The effect of saving network bandwidth and improving packet forwarding efficiency

Active Publication Date: 2016-06-01
NEW H3C TECH CO LTD
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will cause a large number of VXLAN packets to be forwarded in the IP core network, occupying a large network bandwidth and reducing the efficiency of packet forwarding.

Method used

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  • MAC address information synchronization method and device based on CAS VXLAN
  • MAC address information synchronization method and device based on CAS VXLAN
  • MAC address information synchronization method and device based on CAS VXLAN

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Embodiment Construction

[0043] In order to solve the problem in the prior art that there are a large number of VXLAN packets encapsulated with user packets with unknown destination MAC addresses that need to be forwarded in the IP core network, which occupies a large network bandwidth and reduces the efficiency of packet forwarding, The embodiment of the present application provides a method for synchronizing MAC address information based on CASVXLAN, and a device for synchronizing MAC address information based on CASVXLAN to which the method can be applied.

[0044] The method for synchronizing MAC address information based on CASVXLAN in the embodiment of the present application includes the following contents:

[0045] After VTEP detects that any VM has established a connection with the device, it can obtain the MAC address information of the VM, and then in the table The MAC entry corresponding to the MAC address information of the VM is added. For the convenience of description, the MAC entry a...

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Abstract

The application discloses a Media Access Control (MAC) address information synchronization method and device based on a Virtual eXtensible Local Area Network (VXLAN), wherein the method is applied to a VXLAN Tunnel End Point (VTEP) in the CAS CXLAN. The method includes the steps of: after any Virtual Machine (VM) is detected to be connected with the device, adding a local MAC item corresponding to MAC address information of the VM in an MAC address table; carrying the MAC address information in all of the local MAC items of the MAC address table, belonging to the same VXLAN, in a Link Layer Discovery Protocol (LLDP) message, and after the LLDP message is packaged into a VXLAN message, sending the VXLAN message to the VTEP at an opposite end through a VXLAN tunnel associated with the VXLAN; and de-packaging the VXLAN message after the VXLAN message sent by the VTEP at the opposite end is received, obtaining the LLDP message, and updating the MAC address table according to the MAC address information carried in the LLDP message.

Description

technical field [0001] The present application relates to the technical field of network communication, in particular to a method and device for synchronizing MAC address information based on CASVXLAN. Background technique [0002] VXLAN (VirtualeXtensibleLocalAreaNetwork, Virtual Extensible Local Area Network) is an Overlay (overlapping) network technology, using MAC (MediaAccessControl, Media Access Control) inUDP (UserDatagramProtocol, User Datagram Protocol) method for encapsulation, that is, the original message Encapsulated in UDP packets. [0003] The architecture of a typical VXLAN network is as follows: figure 1 As shown, the VXLAN network mainly includes the following parts: [0004] VM (Virtual Machine, virtual machine): Multiple virtual machines can be created on one server, and different virtual machines can belong to different VXLANs. Virtual machines belonging to the same VXLAN are in the same logical Layer 2 network and can communicate with each other at L...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L29/12
CPCH04L12/4633H04L12/4641H04L61/50H04L61/5076Y02D30/00
Inventor 伊莉娜
Owner NEW H3C TECH CO LTD
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