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Address migration method, device, network device and readable storage medium

A network device and address technology, applied in the network field, can solve problems such as packet loss, service interruption, and slow convergence.

Active Publication Date: 2021-09-07
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, when relearning the local MAC address, the NP chip in the VTEP needs to mirror the packets sent by the migrated virtual machine to the CPU to learn the source MAC address. The mirroring process will consume the hardware resources of the NP chip. When the number of migrated virtual machines is large, the hardware resources of the NP chip will be consumed more, which will affect the forwarding performance of the NP chip. Packet loss occurs when the port business is being processed, causing service interruption

Method used

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  • Address migration method, device, network device and readable storage medium
  • Address migration method, device, network device and readable storage medium
  • Address migration method, device, network device and readable storage medium

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Embodiment approach

[0072] In the first implementation manner, both the destination port and the source port are managed by the same NP chip 110 . Assuming that the source port number is port1, the MAC addresses of the virtual machines connected under the source port number include MAC address 1, MAC address 2, and MAC address 3. The destination port number is port2, and the MAC addresses of the virtual machines connected to the destination port include MAC address 4 and MAC address 5. Because the destination port and the source port belong to the same NP chip 110 management, the MAC address entries of the destination port and the source port exist in the same data table, and are all stored in the memory 1102, and the first MAC address entry is backed up to the In the process of obtaining the second MAC address entry from the MAC address entry corresponding to the destination port, it is only necessary to modify the port information corresponding to MAC address 1, MAC address 2, and MAC address 3...

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Abstract

The embodiments of the present application provide an address transfer method, apparatus, network device, and readable storage medium. After receiving a MAC address transfer request, the method transfers the first port of the virtual machine to be migrated connected to the source port in the NP chip. A MAC address entry is backed up into the MAC address entry corresponding to the destination port. The entire MAC address migration process will not re-learn the MAC address, that is, the packets sent by the virtual machine after the migration will not be mirrored to the central processing unit to learn the source MAC address, and the hardware resources of the NP chip will not be occupied, thus ensuring the NP chip. The forwarding performance will not be affected to ensure that other services will not be interrupted due to limited forwarding performance.

Description

technical field [0001] The present application relates to the field of network technologies, and in particular, relates to an address migration method, device, network equipment, and readable storage medium. Background technique [0002] In the VXLAN network, there are many physical sites scattered around, and there may be a situation where a virtual machine (Virtual Machine, VM for short) migrates between different physical sites. However, if there is virtual machine migration between different sites connected under the same VXLAN tunnel endpoint (VXLAN Tunneling End Point, referred to as VTEP), it will involve the process of local MAC address re-learning (that is, the process of local MAC address migration between sites). [0003] In the existing technology, when relearning the local MAC address, the NP chip in the VTEP needs to mirror the packets sent by the migrated virtual machine to the CPU to learn the source MAC address. The mirroring process will consume the hardwar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L29/12H04L12/46H04L45/74
CPCH04L12/4641H04L45/74H04L2101/622
Inventor 朱士玉武伟
Owner NEW H3C TECH CO LTD
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