Method for implementing image in exchange system

Abstract

This invention provides a method for realizing mirror images in an exchange system including: setting a mirror image output queue specially used in mirror image data packets at a destination port of the mirror images, storing the data packets in said output queue orderly to be output from said destination port, which can control the output priorities and the occupied bandwidth of the output of the normal data packets and mirror image data packets to avoid the influence of the mirror image data packets to normal data packets.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for realizing mirroring in a switching system. Background technique [0002] The basic working principle of the switching system based on output queuing is attached figure 1 shown. exist figure 1 Among them, InP_0 to InP_n are the input source ports of the switching system, OutP_0 to OutP_n are the output destination ports of the switching system, and usually each output destination port is provided with one or more output queues. [0003] A schematic diagram of an output destination port with multiple output queues is attached figure 2 shown. [0004] Attached below figure 1 , attached figure 2 Describe the processing of data packets in the switching system based on output queuing. [0005] exist figure 1 , figure 2 Among them, the switching system receives data packets from multiple input source ports, and extracts key information from the rec...

AI Technical Summary

Problems solved by technology

[0019] From the above description of the implementation process of mirroring in and mirroring out, it can be seen that due to the phenomenon that normal data packets and mirrored data packets are mixed in the output queue of the destination port of mirroring in / out of the mirroring destination port, the output queue scheduler cannot control the output queue. The output priority of normal data packets and incoming mirrored data packets / outgoing mirrored data packets, output occupied bandwidth, etc., so that the output performance of normal data packets is affected by mirrored data packets

At the same time, in the mirroring process, because the mirrored data packet is copied before entering the output queue of the mirroring source port, the mirrored data packet will be queued into multiple output queues of the mirroring source port, so, After the output of the mirroring source port is scheduled, the output order of the mirrored data packets will change, resulting in the inconsistency between the mirrored data packets output by the mirroring source port and the mirrored data packets output by the mirroring destination port, which is not really implemented. purpose of mirroring

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