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Message buffer method and device of Ethernet equipment

A technology of Ethernet and equipment, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of increasing network solution implementation cost, congestion, etc.

Active Publication Date: 2016-10-05
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the link is congested due to insufficient bandwidth for a long time, a better solution should be to permanently increase the link bandwidth, but this will definitely increase the implementation cost of the network solution

Method used

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  • Message buffer method and device of Ethernet equipment
  • Message buffer method and device of Ethernet equipment
  • Message buffer method and device of Ethernet equipment

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Experimental program
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Embodiment Construction

[0043] The applicant analyzed the cache logic structure of the existing Ethernet equipment and found that:

[0044] Because the MAC chip cache used by the access layer Ethernet switch is generally small, taking the MAC chip of a 24-port Ethernet switch as an example, it is usually only 512K-8M, so when the port congestion reaches the upper limit of a single device cache, no matter which The cache logic structure cannot solve the problem that the PIC must discard some packets after the temporary burst of large traffic enters the switch.

[0045] figure 1 The flow chart of the method for buffering packets of an Ethernet device provided in the embodiment of the present application, the specific steps are as follows:

[0046] Step 101: The first device serving as a Buffer Server (caching server) in the Ethernet sends a Buffer Client (caching client) query message from each of its enabled ports.

[0047] Step 102: The first device receives a Buffer Client registration message res...

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PUM

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Abstract

The invention provides a message buffer method and device of Ethernet equipment. The method comprises that a first device as a buffer server in an Ethernet transmits a Buffer Client querying message via enabling ports of the first device itself, receives a Buffer Client registering message replied by any other device via any enabling port of the first device itself, and adds the other device, as a Buffer Client, into a distributed buffer group of reception ports of the registering message; and when the first device detects that the amount of messages received by any port with the distributed buffer function in unit time reaches a preset shunting threshold, the first device forwards a message entering the port to a buffer client selected from the distributed buffer group of the port. Thus, packet loss is prevented from Ethernet equipment.

Description

technical field [0001] The present application relates to the technical field of message buffering, and in particular to a method and device for buffering messages of an Ethernet device. Background technique [0002] For the convenience of understanding, the following description is first given: [0003] Buffer (caching): In this application, it specifically refers to the data buffering of the Ethernet device. Current Ethernet switches usually adopt a store-and-forward method, that is, after a message enters a port, it enters a buffer queue of a MAC (Media Access Control, Media Access Control) chip for temporary storage, and then forwards it outward through an egress port. The MAC chip cache area is essentially a high-speed memory, which is used as a temporary file exchange area. [0004] CELL (fragmentation): The basic unit for storing data packets in Buffer. One packet can be stored in multiple CELLs. Fragmented storage divides variable-length data packets (PKT) into fi...

Claims

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Application Information

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IPC IPC(8): H04L12/861H04L47/56H04L47/30
CPCH04L47/28H04L47/30H04L47/56H04L45/66H04L49/9047
Inventor 唐小虎王祝勋
Owner NEW H3C TECH CO LTD
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