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Method for synchronizing arp tables between active and standby vrrp devices and vrrp devices

An ARP table and standby device technology, applied in the data field to reduce packet loss time

Active Publication Date: 2018-03-27
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method and VRRP device for synchronizing the ARP table between the active and standby VRRP devices, so as to overcome the existing ARP table synchronization that requires the access layer device to support ARP dual transmission or requires pure manual static configuration to perform Synchronization flaws

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  • Method for synchronizing arp tables between active and standby vrrp devices and vrrp devices
  • Method for synchronizing arp tables between active and standby vrrp devices and vrrp devices
  • Method for synchronizing arp tables between active and standby vrrp devices and vrrp devices

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Embodiment Construction

[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

[0047] A method to synchronize the ARP table between the active and standby VRRP devices, such as figure 1 Shown, including:

[0048] Step 10: The VRRP master device encapsulates the layer 3 instance corresponding to the VRRP protection group or the ARP table in the L3VPN into a packet, and sends it to the VRRP backup device; among them, the attributes of the master and backup VRRP devices follow the attributes of the VRRP device Change and change

[0049] In specific implementation, the process of sending messages can be periodic, such as sending once every one minute. In addition, the messa...

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Abstract

The invention discloses a method for synchronizing an Address Resolution Protocol (ARP) table between active and standby Virtual Router Redundancy Protocol (VRRP) devices and a VRRB device. The method includes: a VRRP master device corresponding to a three-layer instance of the VRRP protection group Or the ARP table in the three-layer virtual private network (L3VPN) is encapsulated in the message, and then sent to the VRRP standby device; the VRRP standby device parses the received message, and loads the ARP table carried therein to the local corresponding ARP table. The VRRB device includes: an ARP table message generating module, an ARP table message sending module, an ARP table message parsing module and an ARP table loading module. After adopting the present invention, the ARP table synchronization between the active and standby VRRP equipments only needs to be supported on the active and standby VRRP equipments through the ARP table information message, and there is no additional requirement on the access ring equipment.

Description

Technical field [0001] The present invention relates to the field of data, in particular to a method for synchronizing ARP (Address Resolution Protocol, address resolution protocol) tables between active and standby VRRP (Virtual Router Redundancy Protocol) devices and VRRP equipment. Background technique [0002] With the development of technologies such as LTE (Long Term Evolution), the convergence layer of the mobile backhaul network introduces the three-layer VPN (Virtual Private Network, virtual private network) technology, and the access layer can continue to use L2VPN (two Layer VPN) technology. In order to ensure the entire MPLS (Multi-Protocol Label Switching, multi-protocol label switching) label forwarding, it is necessary to enable the second and third layer bridging function on the convergence layer equipment; at the same time, in order to improve the reliability of the network, it needs to be on two bridge point devices Use VRRP function. However, after VRRP switc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00
Inventor 周继华钱婕
Owner ZTE CORP
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