Address resolution protocol ARP table updating method, board card and distributed equipment

An address resolution protocol, a technology of distributed equipment, applied in the field of communication, can solve the problems of synchronization, the inability to keep the ARP table consistent, and the inability to update the ARP table, and achieve the effect of ensuring consistency and normal operation.

Active Publication Date: 2017-06-23
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, even if the main control board receives an entry from any service board, the main control board cannot update its own ARP table according to the entry or synchronize the entry to other service boards. Finally, The ARP table on each board cannot be consistent
It can be seen that in this case, the normal operation of the main control board and the entire distributed equipment will also be affected

Method used

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  • Address resolution protocol ARP table updating method, board card and distributed equipment
  • Address resolution protocol ARP table updating method, board card and distributed equipment
  • Address resolution protocol ARP table updating method, board card and distributed equipment

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] In order to solve the problems existing in the prior art, the embodiment of the present invention provides an ARP table updating method, a board and a distributed device.

[0026] Understandably, ARP is a protocol for resolving IP addresses into Ethernet MAC addresses. The distributed device may be a router or a switch. Of course, the type of the distributed device is not limited to this, and the details may be determined according to actual conditions,...

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PUM

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Abstract

The embodiment of the invention provides an address resolution protocol ARP table updating method, a board card and distributed equipment. The address resolution protocol ARP table updating method is applied to any board card in the distributed equipment, and comprises the following steps: detecting whether the board card is in an abnormal ARP state; if the board card is in the abnormal ARP state, stopping execution of first-class service operation; after the fact that the board card exits from the abnormal ARP state is detected, resuming the execution of the first-class service operation; after the execution of the first-class service operation is resumed, executing ARP table synchronizing operation corresponding to the type of the board card. According to the scheme, under the condition that any board card in the distributed equipment is attacked by a message, the consistency of ARP tables on the board cards in the distributed equipment can be ensured and normal operation of a main control board card and the distributed equipment can be ensured.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an address resolution protocol ARP table updating method, board and distributed equipment. Background technique [0002] The distributed equipment includes a main control board and several service boards, and each board needs to store an ARP (Address Resolution Protocol, address resolution protocol) table, and the ARP table stored on each board should be consistent. Generally speaking, when any service board learns a new entry, it will send the entry to the main control board, so that the main control board can update its own ARP table according to the received entry. Update and send the entry to other service boards. In this way, the other service boards can also update their ARP tables according to the received entry from the main control board. Finally, the ARP tables on each board can be consistent, and the message is sent to each board. The correctness of inter-trans...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12
CPCH04L61/103H04L61/5053
Inventor 罗琳
Owner NEW H3C TECH CO LTD
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