CN100411388C - Method for implementing image in exchange system - Google Patents
Method for implementing image in exchange system Download PDFInfo
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- CN100411388C CN100411388C CNB2005100710995A CN200510071099A CN100411388C CN 100411388 C CN100411388 C CN 100411388C CN B2005100710995 A CNB2005100710995 A CN B2005100710995A CN 200510071099 A CN200510071099 A CN 200510071099A CN 100411388 C CN100411388 C CN 100411388C
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Abstract
The present invention provides a method for realizing a mirror in an exchange system, which has the core that: a special mirror output queue for mirror data packets is arranged at a mirror objective port, and the mirror data packets are orderly stored in the mirror output queue; the mirror data packets stored in the mirror output queue are orderly output from the mirror objective port. The present invention can flexibly control the output priority, the output occupied bandwidth, etc. of normal data packets and the mirror data packets, avoids the influence on the output performance of the normal data packets by the mirror data packets, can ensure the strict consistency of the output orders of mirrored data packets and output mirror data packets in the process of the output of the mirrors, and thereby, realizes the purposes that the transmission performance of the data packets and the reliability of the mirrors are enhanced.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to realize in a kind of switching system the method for mirror image.
Background technology
Based on the basic functional principle of the switching system of output work queue as shown in Figure 1.In Fig. 1, InP_0 to InP_n is the input source port of switching system, and OutP_0 to OutP_n is the output destination interface of switching system, and each output destination interface all is provided with one or more output queues usually.
The schematic diagram that output destination interface has a plurality of output queues as shown in Figure 2.
Be described based on the switching system of output work queue processing procedure below in conjunction with 2 pairs in accompanying drawing 1, accompanying drawing packet.
In Fig. 1, Fig. 2, switching system receives packet from a plurality of input source ports, and from the packet that receives, extract key message, as source MAC, source IP address etc., with the foundation of key message as exchanges data, the output destination interface of specified data bag and output queue number, packet is drained in the corresponding output queue of corresponding output destination interface, the output destination interface adopts certain dispatching algorithm that a plurality of output queues in its output destination interface are dispatched, and the packet in a plurality of output queues is exported.
In switching system, realize that the purpose of mirror image is in order to observe by the flow of mirror image data, content, sequential scheduling.Mirror image includes mirror image and appearance picture.
Go into mirror image and be meant certain or some input source ports, that promptly goes into the input of image source port is outputed to certain specific output destination interface by the whole slavish copying portions of mirror image data bag, promptly goes into the mirror image destination interface.Appearance similarly is to refer to export destination interface with certain or some, and what promptly go out the output of image source port is outputed to certain specific output destination interface by the whole slavish copying portions of mirror image data bag, and promptly appearance is as destination interface.
Go into the mirror image implementation method and appearance describes respectively as implementation method below in conjunction with accompanying drawing to present.
The implementation method of going into mirror image as shown in Figure 3.
In Fig. 3, InP_0 to InP_5 is 6 input source ports of switching system, and OutP_0 to OutP_5 is 6 output destination interfaces of switching system.Wherein, OutP_3 is provided with 4 output queues, and output queue 0 is set to into the mirror image output queue.
The packet of going into image source port input is through going into the mirror image analysis, by the slavish copying portion, enters and goes into the mirror image output queue in the mirror image destination interface, goes into the output queue scheduler of mirror image destination interface and will go into the output of mirror image data packet scheduling.As InP_2 for going into the image source port, OutP_3 is for going into the mirror image destination interface, the output queue 0 of OutP_3 is for going into the mirror image output queue, the white data bag is by the mirror image data bag, the grey data bag is into the mirror image data bag, thin black line is the flow direction of normal data packet, and thick black line is the flow direction into the mirror image data bag.
Duplicated successively from the packet 0,1,2 of going into image source port input etc., and entered successively into mirror image output queue 0, go into the mirror image data bag with same order from going into the output of mirror image destination interface.
Going in the mirrored procedure above-mentioned, is non-mirror image data bag when entering output queue 0 into the mirror image destination interface if normal data packet is arranged, and includes normal data packet and goes into the mirror image data bag from going into mirror image destination interface dateout Bao Ze.
The implementation method of appearance picture as shown in Figure 4.
In Fig. 4, InP_0 to InP_5 is 6 input source ports of switching system, and OutP_0 to OutP_5 is 6 output destination interfaces of switching system.Wherein, OutP_3 is provided with 4 output queues, and output queue 0 is set to appearance as output queue.
The packet of each input source port input is analyzed through the appearance picture, definite needs enter out the packet of image source port output queue, these packets are by the slavish copying portion, enter appearance as the appearance in the destination interface as output queue, appearance is exported appearance as the queue dispatcher of destination interface as data packet dispatching.As OutP_2 for going out the image source port, OutP_3 is that appearance is as destination interface, output queue 0 among the OutP_3 is that appearance is as output queue, the white data bag is by the mirror image data bag, the grey data bag is that appearance is as packet, thin black line is the flow direction of normal data packet, and thick black line is the flow direction into the mirror image data bag.
Switching system is before being entered out the output queue of image source port by mirror image data bag 0,1,2 etc., duplicate by the mirror image data bag, and the appearance of duplicating entered appearance as output queue successively as packet, appearance is exported as destination interface from appearance with same order as packet.
Above-mentioned appearance as process in, be non-mirror image data bag when entering appearance if normal data packet is arranged as the output queue 0 of destination interface, include normal data packet and appearance as packet from appearance as destination interface dateout Bao Ze.
From top to go into mirror image, appearance as the description of implementation procedure as can be known, owing to go into the phenomenon that has normal data packet and mirror image data bag to mix in the output queue of mirror image destination interface/appearance as destination interface, normal data packet and go into mirror image data bag/appearance as the output priority of packet, output occupied bandwidth etc. in the uncontrollable formation of output queue scheduler makes the output performance of normal data packet be subjected to the influence of mirror image data bag.Simultaneously, appearance as process in, before being wrapped in the output queue that enters out the image source port, be replicated by mirror image data, and can be discharged into out by the mirror image data bag in a plurality of output queues of image source port, so, after going out the output scheduling of image source port, can be changed by the output of mirror image data bag order, thereby cause the inconsistent as the appearance of destination interface output of image source port output, do not have really to realize the purpose of mirror image as the order of packet by mirror image data bag and appearance.
Summary of the invention
The objective of the invention is to, the method that realizes mirror image in a kind of switching system is provided,, realized improving the purpose of normal data packet output performance by the mirror image output queue of mirror image data bag special use is set.
For achieving the above object, realize the method for mirror image in a kind of switching system provided by the invention, comprising:
A, the mirror image output queue of mirror image data bag special use is set at the mirror image destination interface;
B, with mirror image data bag sequential storage in described mirror image output queue;
C, the mirror image data bag of storing in the described mirror image output queue is exported in proper order from described mirror image destination interface.
Described mirror image output queue is: go into mirror image output queue or appearance as output queue;
And described mirror image data bag is: go into mirror image data bag or appearance as packet.
Described mirror image destination interface includes the mirror image destination interface, and described mirror image output queue includes the mirror image output queue, and described step a comprises:
Determine corresponding at least one go into the image source port go into the mirror image destination interface;
Go in the mirror image destination interface to set into the mirror image output queue described.
Described mirror image data bag includes the mirror image data bag and described step a also comprises:
Go in the mirror image destination interface mirror image output queue scheduler is set described;
And described step c comprises:
Described mirror image output queue scheduler will be described be gone into the data packet dispatching of storing in the mirror image output queue of going into the mirror image data bag and going into the output queue scheduler schedules output of mirror image destination interface according to predetermined scheduling rule and is exported.
Described mirror image destination interface comprises appearance as destination interface, and described mirror image output queue comprises appearance as output queue, and described step a comprises:
Determine that corresponding at least appearance that goes out the image source port is as destination interface;
Set out the mirror image output queue in described appearance as destination interface.
Described mirror image data bag comprises that appearance comprises as packet and described step b: after being dispatched out from the output queue that goes out the image source port by the mirror image data bag, duplicate by the mirror image data bag be appearance as packet, and described appearance is stored in described appearance as in the output queue as packet sequence.
Described step a also comprises: as destination interface mirror image output queue scheduler is set in described appearance;
And described step c comprises:
Described appearance is exported described appearance as packet and appearance as the appearance of storing in the output queue according to predetermined scheduling rule as the mirror image output queue scheduler of destination interface setting as the data packet dispatching of the output queue scheduler schedules output of destination interface.
Described mirror image output queue comprises: go into mirror image output queue and appearance as output queue;
And described step a comprises:
In same output port, set into mirror image output queue and appearance as output queue.
Described mirror image data bag comprises: go into mirror image data bag and appearance and comprise as packet and described step b:
To go into mirror image data bag sequential storage goes in the mirror image output queue described;
After from the output queue that goes out the image source port, being dispatched out of appearance picture by the mirror image data bag, duplicate described by the mirror image data bag be appearance as packet, and described appearance is stored in described appearance as in the output queue as packet sequence.
Described step a also comprises:
Mirror image output queue scheduler is set in described output port;
And described step c comprises:
Described mirror image output queue scheduler according to predetermined scheduling rule with described appearance as the appearance of storing in the output queue as packet, described data packet dispatching output of going into the output queue scheduler schedules output of going into mirror image data bag and described output port of storing in the mirror image output queue.
Description by technique scheme as can be known, the present invention is by being provided with the mirror image output queue of mirror image data bag special use, as go into mirror image output queue, appearance as output queue, make into/appearance as the scheduler of destination interface such as mirror image output queue scheduler etc., can according to predetermined dispatching algorithm control flexibly normal data packet and mirror image data bag output priority, export occupied bandwidth etc., avoided going into/appearance is as the influence of packet to the normal data packet output performance; Appearance as process in, by after the output queue that is entered out the image source port by the mirror image data bag, duplicating, make the present invention can strict guarantee by mirror image data bag output order and appearance consistency as packet output order, really realized the purpose of mirror image; Thereby realized improving the purpose of data packet transmission performance, raising mirror image reliability.
Description of drawings
Fig. 1 is based on the basic functional principle figure of the switching system of output work queue;
Fig. 2 is based on the processing procedure schematic diagram of the switching system of output work queue to packet;
Fig. 3 be prior art go into mirror image implementation method schematic diagram;
Fig. 4 is that the appearance of prior art is as the implementation method schematic diagram;
Fig. 5 is the mirror image implementation method schematic diagram of going into of the present invention;
Fig. 6 is that appearance of the present invention is as the implementation method schematic diagram.
Embodiment
Core of the present invention is: the mirror image output queue of mirror image data bag special use is set, the mirror image data bag is stored in described mirror image output queue, the mirror image data bag of storing in the described mirror image output queue is exported in proper order from the mirror image destination interface.
Based on core concept of the present invention technical scheme provided by the invention is further described below.
The present invention at first need increase the mirror image output queue of mirror image data bag special use in switching system, this mirror image output queue is an independent formation, structurally with the mirror image destination interface in original other output queues be what to be separated.
Because the mirror image implementation method can be divided into into mirror image implementation method and appearance as implementation method, so, the mirror image implementation method gone into and appearance describes respectively as implementation method to of the present invention below.
In going into mirrored procedure, the mirror image output queue of the mirror image data bag special use that the present invention increases can be called into the mirror image output queue.Go into the mirror image output queue and can be configured in any one output port in the switching system, dispose into the output port of mirror image output queue and go into the mirror image destination interface exactly.
Go into the mirror image destination interface and can correspondingly dispose one or more input ports for going into the image source port.
Go into the mirror image analyzing and processing from the packet process of going into the input of image source port, will be drained in the mirror image output queue by the slavish copying of mirror image data bag for going into the mirror image data bag.
The present invention also is provided with mirror image output queue scheduler going into the mirror image destination interface, and this mirror image output queue scheduler is independent of into the original output queue scheduler of mirror image destination interface, promptly increases the dispatching management of one-level packet output going into the mirror image destination interface.
Going into the packet of the original output queue scheduler schedules output of mirror image destination interface and go into the mirror image data bag of storing in the mirror image output queue of going into need be through exporting from going into the mirror image destination interface after the scheduling of mirror image output queue scheduler again.
Go into the mirror image implementation method and describe below in conjunction with 5 pairs in accompanying drawing is of the present invention.
In Fig. 5, InP_0 to InP_5 is 6 input source ports of switching system, and OutP_0 to OutP_5 is 6 output destination interfaces of switching system.Wherein, owing to of the present inventionly go into the mirror image output queue and be arranged among the OutP_3, so OutP_3 is for going into the mirror image destination interface.
OutP_3 is provided with 5 output queues, comprising: output queue 0 is to output queue 3 and go into the mirror image output queue.Output queue 0 to output queue 3 for going into the original output queue of mirror image destination interface, be used to store normal data packet, go into the special use of mirror image output queue and be used to be stored into the mirror image data bag.From Fig. 5, can obviously find out, go into the mirror image output queue and be independent of output queue 0 to output queue 3, with output queue 0 to output 3 be what to be separated from structure.
The present invention is provided with mirror image output queue scheduler in going into mirror image destination interface OutP_3.Can find out obviously that from Fig. 5 mirror image output queue scheduler is independent of the output queue scheduler among the mirror image destination interface OutP_3, with original output queue scheduler be what to be separated from structure.
Set input source port InP_2 for going into the image source port.From the white data bag of going into image source port InP_2 input is normal data packet, and promptly by the mirror image data bag, the grey data bag is into the mirror image data bag.Thin black line is the flow direction of normal data packet, the thick black line on the mirror image output queue scheduler left side is the flow direction into the mirror image data bag, and the thick black line on mirror image output queue scheduler the right is through the common flow direction of going into mirror image data bag and normal data packet after the mirror image output queue scheduler schedules.
After going into the mirror image analysis from process such as packet 0,1,2 of going into image source port InP_2 input, copied as into mirror image data bag 0,1,2 successively etc., and enter successively and go into the mirror image output queue into the special use of mirror image data bag.
Mirror image output queue scheduler carries out schedule level one again after going into the output queue scheduler schedules of mirror image destination interface, promptly to the normal data packet of output queue scheduler output with go into the mirror image data bag of storing in the mirror image output queue of going into and dispatch, the normal data packet after mirror image output queue scheduler schedules and go into the mirror image data bag and from go into mirror image destination interface OutP_3, export.
Mirror image output queue scheduler can effectively be controlled output priority into mirror image data bag and normal data packet, output occupied bandwidth etc. according to predetermined dispatching algorithm, thereby the transmission performance of having avoided normal data packet is gone into the problem that the mirror image data bag influences, and guarantees the order of mirror image data bag output and by the input sequence strict conformance of mirror image data bag.
Appearance as process in, the mirror image output queue of the mirror image data bag special use that the present invention increases can be called appearance as output queue.Appearance can be configured in any one output port in the switching system as output queue, and disposing appearance is exactly that appearance is as destination interface as the output port of output queue.
Appearance can correspondingly be disposed one or more output ports for going out the image source port as destination interface.
Packet process appearance after the output queue scheduler schedules output through going out the image source port is as analyzing and processing, to be that appearance is as packet by the slavish copying of mirror image data bag, be drained into appearance as in the output queue, the packet of promptly importing out the image source port is not to be replicated before the output queue that enters out the image source port, but after output from the output queue that goes out the image source port, be replicated.
The present invention also is provided with mirror image output queue scheduler in appearance as destination interface, and this mirror image output queue scheduler is independent of appearance as the original output queue scheduler of destination interface, promptly increases the dispatching management of one-level packet output as destination interface in appearance.
Appearance is exported as destination interface from appearance after as the scheduling of packets need through mirror image output queue scheduler as the appearance of storing in the output queue as the packet of the original output queue scheduler schedules of destination interface output and appearance again.
Describe as implementation method below in conjunction with 6 pairs of appearances of the present invention of accompanying drawing.
In Fig. 6, InP_0 to InP_5 is 6 input source ports of switching system, and OutP_0 to OutP_5 is 6 output destination interfaces of switching system.Wherein, because appearance of the present invention is arranged among the output destination interface OutP_3, so OutP_3 is that appearance is as destination interface as output queue.
Appearance is provided with 5 output queues as destination interface OutP_3, comprising: output queue 0 to output queue 3 and appearance as output queue.Output queue 0 to output queue 3 for appearance as the original output queue of destination interface, be used to store normal data packet, appearance is used to store appearance as packet as the output queue special use.Can find out obviously that from Fig. 6 appearance is independent of output queue 0 to output queue 3 as output queue, with output queue 0 to output 3 be what to be separated from structure.
The present invention is provided with mirror image output queue scheduler in appearance in as destination interface OutP_3.Can find out obviously that from Fig. 6 mirror image output queue scheduler is independent of appearance as the output queue scheduler among the destination interface OutP_3, with appearance be what to be separated as the original output queue scheduler of destination interface OutP_3 from structure.
Set output destination interface OutP_2 for going out the image source port.From the white data bag that goes out image source port OutP_2 output is normal data packet, and promptly by the mirror image data bag, the grey data bag is that appearance is as packet.Thin black line is the flow direction of normal data packet, the thick black line on the mirror image output queue scheduler left side is the flow direction of appearance as packet, and the thick black line on mirror image output queue scheduler the right is through the common flow direction of going into mirror image data bag and normal data packet after the mirror image output queue scheduler schedules.
After analyzing through the appearance picture from the packet 0,1,2 that goes out image source port OutP_2 output etc., copied as appearance successively as packet 0,1,2 etc., and enter successively appearance as the appearance of packet special use as output queue.
Comparison diagram 4 and Fig. 6 are as can be known, in the prior art, after analyzing through the appearance picture, be replicated before being wrapped in the output queue that enters out the image source port by mirror image data, owing to may be discharged into out in the different output queues of image source port by the mirror image data bag, so, go out the different as the order of packet with appearance of image source port output as the appearance of destination interface output by the order of mirror image data bag.And in the present invention, go out after being wrapped in by mirror image data of image source port output analyze through the appearance picture, just be replicated, and, the appearance of duplicating out as packet be discharged into appearance as the appearance of packet special use as in the output queue, like this, just can the strict guarantee appearance in full accord as packet with the order that goes out the output of image source port by the mirror image data bag as the appearance of destination interface output.
Mirror image output queue scheduler carries out schedule level one again after appearance is as the output queue scheduler schedules of destination interface, promptly the normal data packet and the appearance of output queue scheduler output are dispatched as packet as the appearance of storing in the output queue, normal data packet after mirror image output queue scheduler schedules and appearance are exported as destination interface OutP_3 from appearance as packet.
Mirror image output queue scheduler can effectively be controlled appearance as the output priority of packet and normal data packet, output occupied bandwidth etc. according to predetermined dispatching algorithm, thereby the problem that the transmission performance of having avoided normal data packet is influenced as packet by appearance, and guarantee that appearance is as the order of packet output with by the input sequence strict conformance of mirror image data bag.
If in switching system, need to use simultaneously into mirror image technology and appearance as technology, then go into mirror image output queue and appearance and can be configured in simultaneously in the same output port as output queue.
When going into mirror image output queue and appearance when being configured in same output port as output queue, this output port is into the mirror image destination interface, is again that appearance is as destination interface.This output port can be simultaneously corresponding a plurality of gone into the image source port and is gone out the image source port.
Go into the mirror image analyzing and processing from the packet process of going into the input of image source port, can be drained into going in the mirror image output queue of this output port by slavish copying for going into the mirror image data bag by the mirror image data bag.
Packet process appearance after the output queue scheduler schedules output through going out the image source port is as analyzing and processing, by the mirror image data bag can be that appearance is as packet by slavish copying, the appearance that is drained into this output port is as in the output queue, what import out the image source port is not to be replicated before the output queue that enters out the image source port by the mirror image data bag, but after output from the output queue that goes out the image source port, be replicated.Thereby strict guarantee appearance in full accord with the order that goes out the output of image source port as the appearance of destination interface output by the mirror image data bag as packet.
This output port can also be provided with a mirror image output queue scheduler, and this mirror image output queue scheduler is independent of the original output queue scheduler of this output port, promptly increases the dispatching management of one-level packet output at this output port.
The packet of original output queue scheduler schedules output and going into is stored in the mirror image output queue in this output port goes into mirror image data bag, appearance and exports from this output port after as the scheduling of packets need through mirror image output queue scheduler as the appearance of storing in the output queue again, thereby can be easily obtains into mirror image data bag and appearance as packet from same output port.
The mirror image output queue scheduler of this output port can effectively be controlled appearance as packet, the output priority of going into mirror image data bag and normal data packet, output occupied bandwidth etc. according to predetermined dispatching algorithm, thereby has avoided the transmission performance of normal data packet to be gone into the problem that mirror image data bag, appearance influence as packet.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, and the claim of application documents of the present invention comprises these distortion and variation.
Claims (10)
1. realize the method for mirror image in the switching system, it is characterized in that, comprising:
A, the mirror image output queue of mirror image data bag special use is set at the mirror image destination interface;
B, with mirror image data bag sequential storage in described mirror image output queue;
C, the mirror image data bag of storing in the described mirror image output queue is exported in proper order from described mirror image destination interface.
2. realize the method for mirror image in a kind of switching system as claimed in claim 1, it is characterized in that described mirror image output queue is: go into mirror image output queue or appearance as output queue;
And described mirror image data bag is: go into mirror image data bag or appearance as packet.
3. realize the method for mirror image in a kind of switching system as claimed in claim 1, it is characterized in that described mirror image destination interface includes the mirror image destination interface, described mirror image output queue includes the mirror image output queue, and described step a comprises:
Determine corresponding at least one go into the image source port go into the mirror image destination interface;
Go in the mirror image destination interface to set into the mirror image output queue described.
4. realize the method for mirror image in a kind of switching system as claimed in claim 3, it is characterized in that described mirror image data bag includes the mirror image data bag and described step a also comprises:
Go in the mirror image destination interface mirror image output queue scheduler is set described;
And described step c comprises:
Described mirror image output queue scheduler will be described be gone into the data packet dispatching of storing in the mirror image output queue of going into the mirror image data bag and going into the output queue scheduler schedules output of mirror image destination interface according to predetermined scheduling rule and is exported.
5. as realizing the method for mirror image in the described a kind of switching system of arbitrary claim in the claim 1 to 4, it is characterized in that, described mirror image destination interface comprises appearance as destination interface, and described mirror image output queue comprises appearance as output queue, and described step a comprises:
Determine that corresponding at least appearance that goes out the image source port is as destination interface;
Set out the mirror image output queue in described appearance as destination interface.
6. realize the method for mirror image in a kind of switching system as claimed in claim 5, it is characterized in that described mirror image data bag comprises that appearance comprises as packet and described step b:
After from the output queue that goes out the image source port, being dispatched out by the mirror image data bag, duplicate by the mirror image data bag be appearance as packet, and described appearance is stored in described appearance as in the output queue as packet sequence.
7. realize the method for mirror image in a kind of switching system as claimed in claim 6, it is characterized in that described step a also comprises:
As destination interface mirror image output queue scheduler is set in described appearance;
And described step c comprises:
Described appearance is exported described appearance as packet and appearance as the appearance of storing in the output queue according to predetermined scheduling rule as the mirror image output queue scheduler of destination interface setting as the data packet dispatching of the output queue scheduler schedules output of destination interface.
8. as realizing the method for mirror image in the described a kind of switching system of arbitrary claim in the claim 1 to 4, it is characterized in that described mirror image output queue comprises: go into mirror image output queue and appearance as output queue;
And described step a comprises:
In same output port, set into mirror image output queue and appearance as output queue.
9. realize the method for mirror image in a kind of switching system as claimed in claim 8, it is characterized in that described mirror image data bag comprises: go into mirror image data bag and appearance and comprise as packet and described step b:
To go into mirror image data bag sequential storage goes in the mirror image output queue described;
After from the output queue that goes out the image source port, being dispatched out of appearance picture by the mirror image data bag, duplicate described by the mirror image data bag be appearance as packet, and described appearance is stored in described appearance as in the output queue as packet sequence.
10. realize the method for mirror image in a kind of switching system as claimed in claim 9, it is characterized in that described step a also comprises:
Mirror image output queue scheduler is set in described output port;
And described step c comprises:
Described mirror image output queue scheduler according to predetermined scheduling rule with described appearance as the appearance of storing in the output queue as packet, described data packet dispatching output of going into the output queue scheduler schedules output of going into mirror image data bag and described output port of storing in the mirror image output queue.
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| CN102360481A (en) * | 2011-09-26 | 2012-02-22 | 北京金马甲产权网络交易有限公司 | Mirror image simulation method and system for network bidding |
| CN103716255B (en) * | 2012-09-29 | 2016-12-28 | 华为技术有限公司 | The method and apparatus of Message processing |
| CN107395588A (en) * | 2017-07-18 | 2017-11-24 | 浙江远望通信技术有限公司 | Video monitoring accesses safe blocking-up method and system |
| CN114095513B (en) * | 2021-11-26 | 2024-03-29 | 苏州盛科科技有限公司 | Method for forwarding traffic and mirror image traffic scheduling under limited bandwidth scene and application |
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| US5610905A (en) * | 1993-07-19 | 1997-03-11 | Alantec Corporation | Communication apparatus and methods |
| US6041042A (en) * | 1997-05-27 | 2000-03-21 | Cabletron Systems, Inc. | Remote port mirroring system and method thereof |
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