CN107635025A - A kind of method and system of lower brush mac address forwarding table item - Google Patents
A kind of method and system of lower brush mac address forwarding table item Download PDFInfo
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- CN107635025A CN107635025A CN201710867742.8A CN201710867742A CN107635025A CN 107635025 A CN107635025 A CN 107635025A CN 201710867742 A CN201710867742 A CN 201710867742A CN 107635025 A CN107635025 A CN 107635025A
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- mac address
- table item
- forwarding table
- address forwarding
- lower brush
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Abstract
This application discloses a kind of method and system of lower brush mac address forwarding table item, including：Judgement treats whether the first mac address forwarding table item of lower brush and the second mac address forwarding table item blocked in lower brush chained list are identical；If, then according to the mode of operation of the first mac address forwarding table item and the second mac address forwarding table item, judge whether the first mac address forwarding table item carries out counteracting operation, renewal operation or overlapping operation to the second mac address forwarding table item, and corresponding operating is carried out according to the result judged；If it is not, the first mac address forwarding table item is then cached to lower brush chained list.Instantly when brush MAC Address forwarding address blocks, the application can farthest reduce the MAC number accumulated in lower brush chained list, ensure that the mac address forwarding table item repeated is not present in lower brush chained list, only exist a mac address forwarding table item, the situation that internal memory exhausts is avoided, and then improves the stability of network performance.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method and system of lower brush mac address forwarding table item.
Background technology
Medium access control (Media Access Control, abbreviation MAC) addresses forwarding table of interchanger is interchanger
A most important function in network system, mac address forwarding table is usually to run upper-layer protocol with forming MAC in network system
Location forwarding-table item, then User space process establish socket with kernel and communicate, being brushed under mac address forwarding table item to kernel, enter
And form final mac address forwarding table.
Existing User space process is established socket with kernel and communicated, and is typically brushed under by the way of synchronously blocking interior
Core.Specifically, User space process first mac address forwarding table item is cached in lower brush chained list, lower brush chained list include addition chain with
Chain is deleted, meets to carry out lower brush during certain condition.But when substantial amounts of mac address forwarding table item be present, will during lower brush kernel
Situation about inevitably blocking, when kernel blocks, will accumulate substantial amounts of mac address forwarding table item, especially in lower brush chain
When it is ceaselessly additions and deletions same mac address forwarding table item, it can so occur to add chain and delete in chain blocking identical
The situation of mac address forwarding table item, that is, identical mac address forwarding table item have accumulated two parts in lower brush chained list, so
Increase repeatedly, deleting MAC address forwarding-table item, the mac address forwarding table item accumulated in lower brush chained list can be cumulative, finally can
Internal memory is caused to exhaust.
Therefore, when substantial amounts of mac address forwarding table item is present and mac address forwarding table item migrates, how MAC is improved
The lower brush performance of address repeat listing, it is those skilled in the art's technical problem urgently to be resolved hurrily.
The content of the invention
In view of this, can be with it is an object of the invention to provide a kind of method and system of lower brush mac address forwarding table item
The MAC number accumulated in lower brush chained list, the situation for avoiding internal memory from exhausting farthest are reduced, and then improves the steady of network performance
It is qualitative.Its concrete scheme is as follows：
A kind of method of lower brush mac address forwarding table item, including：
Judge to treat the first mac address forwarding table item of lower brush and the second mac address forwarding table item blocked in lower brush chained list
It is whether identical；
If so, then according to the operation side of the first mac address forwarding table item and the second mac address forwarding table item
Formula, judges whether the first mac address forwarding table item carries out counteracting operation, more to the second mac address forwarding table item
New operation or overlapping operation, and corresponding operating is carried out according to the result judged；
If it is not, the first mac address forwarding table item is then cached to the lower brush chained list.
Preferably, in the method for above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention, judging to treat
After first mac address forwarding table item of lower brush is identical with the second mac address forwarding table item blocked in lower brush chained list, specifically
Step includes：
If treating, the operation of the first mac address forwarding table item of lower brush operates for addition, the blocked in the lower brush chained list
When the operation of two mac address forwarding table items operates for addition, the second mac address forwarding table item is updated to described first
Mac address forwarding table item.
Preferably, in the method for above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention, judging to treat
After first mac address forwarding table item of lower brush is identical with the second mac address forwarding table item blocked in lower brush chained list, specifically
Step includes：
If treating, the operation of the first mac address forwarding table item of lower brush operates for addition, the blocked in the lower brush chained list
When the operation of two mac address forwarding table items is deletion action, the first mac address forwarding table item is covered in described second
On the original position of mac address forwarding table item.
Preferably, in the method for above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention, judging to treat
After first mac address forwarding table item of lower brush is identical with the second mac address forwarding table item blocked in lower brush chained list, specifically
Step includes：
If the operation for treating the first mac address forwarding table item of lower brush is deletion action, block in the lower brush chained list
The operation of two mac address forwarding table items operates for addition, and without under during swiped through kernel, by first mac address forwarding table
Item is cancelled out each other with the second mac address forwarding table item.
Preferably, in the method for above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention, judging to treat
After first mac address forwarding table item of lower brush is identical with the second mac address forwarding table item blocked in lower brush chained list, specifically
Step includes：
If the operation for treating the first mac address forwarding table item of lower brush is deletion action, block in the lower brush chained list
The operation of two mac address forwarding table items operates for addition, and under having during swiped through kernel, by first mac address forwarding table
Item is covered on the original position of the second mac address forwarding table item.
Preferably, in the method for above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention, judging to treat
After first mac address forwarding table item of lower brush is identical with the second mac address forwarding table item blocked in lower brush chained list, specifically
Step includes：
If the operation for treating the first mac address forwarding table item of lower brush is deletion action, block in the lower brush chained list
When the operation of two mac address forwarding table items is deletion action, the second mac address forwarding table item is updated to described first
Mac address forwarding table item.
The embodiment of the present invention additionally provides a kind of system of lower brush mac address forwarding table item, including：
First judge module, for judge to treat the first mac address forwarding table item of lower brush with block in lower brush chained list the
Whether two mac address forwarding table items are identical；
Second judge module, for when the judged result of the judge module is identical, according to first MAC Address
Whether the mode of operation of forwarding-table item and the second mac address forwarding table item, judge the first mac address forwarding table item
Counteracting operation, renewal operation or overlapping operation are carried out to the second mac address forwarding table item, and is entered according to the result judged
Row corresponding operating；
Cache module, for when the judged result of the judge module is to differ, the first MAC Address of lower brush will to be treated
Forwarding-table item is cached to the lower brush chained list.
A kind of method and system of lower brush mac address forwarding table item provided by the present invention, including：Judge to treat the of lower brush
Whether one mac address forwarding table item and the second mac address forwarding table item blocked in lower brush chained list are identical；If so, then according to
The mode of operation of one mac address forwarding table item and the second mac address forwarding table item, judge that the first mac address forwarding table item is
It is no that counteracting operation, renewal operation or overlapping operation are carried out to the second mac address forwarding table item, and carried out according to the result judged
Corresponding operating；If it is not, the first mac address forwarding table item is then cached to lower brush chained list.Instantly brush MAC Address forwarding address occurs
During obstruction, the application can farthest reduce the MAC number accumulated in lower brush chain, ensure that repetition is not present in lower brush chained list
Mac address forwarding table item, only exist a mac address forwarding table item, avoid internal memory from exhausting, improve the stabilization of network performance
Property, solving when substantial amounts of MAC progress additions and deletions repeatedly in network system be present, lower brush MAC Address forwarding address obstruction occur
When the problem of causing network system performance degradation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the method flow diagram of lower brush mac address forwarding table item provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The present invention provides a kind of method of lower brush mac address forwarding table item, as shown in figure 1, comprising the following steps：
S101, judgement treat that the first mac address forwarding table item of lower brush forwards with the second MAC Address blocked in lower brush chained list
Whether list item is identical；
If so, then perform step S102；If it is not, then perform step S103；
S102, the mode of operation according to the first mac address forwarding table item and the second mac address forwarding table item, judge
Whether one mac address forwarding table item carries out counteracting operation, renewal operation or overlapping operation to the second mac address forwarding table item, and
Corresponding operating is carried out according to the result judged；
S103, the first mac address forwarding table item is cached to lower brush chained list.
In the method for above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention, brush MAC Address forwards instantly
When list item blocks, the MAC number accumulated in lower brush chain can be farthest reduced, ensures that weight is not present in lower brush chained list
Multiple MAC Address list item, avoids internal memory from exhausting, and improves the stability of network performance, solves a large amount of when existing in network system
MAC when carrying out additions and deletions repeatedly, occur causing asking for network system performance degradation during lower brush mac address forwarding table item obstruction
Topic.
It should be noted that situation about only being blocked (treats the first mac address forwarding table item of lower brush and lower brush chain
When the second mac address forwarding table item blocked in table is identical) just need to perform step S102, step is directly performed under normal circumstances
S103.Step S101 is it can be appreciated that the mac address forwarding table item (i.e. the first mac address forwarding table item) for judging to treat lower brush is
It is no to be present in lower brush chained list, if performing step S102 in the presence of if, if the execution step S103 in the absence of if.
In the specific implementation, in the method for above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention, sentencing
Break to treat lower brush the first mac address forwarding table item it is identical with the second mac address forwarding table item blocked in lower brush chained list after,
After there is obstruction, specific step can include following several situations：
Situation one：If treating, the operation of the first mac address forwarding table item of lower brush operates for addition, blocks in lower brush chained list
When the operation of second mac address forwarding table item operates for addition, no matter swiped through kernel under whetheing there is, by the second mac address forwarding table
Item is updated to the first mac address forwarding table item (performing renewal operation)；
Situation two：If treating, the operation of the first mac address forwarding table item of lower brush operates for addition, blocks in lower brush chained list
When the operation of second mac address forwarding table item is deletion action, no matter swiped through kernel under whetheing there is, by the first mac address forwarding table
Item is covered on the original position of the second mac address forwarding table item (execution overlapping operation)；
Situation three：If the operation for treating the first mac address forwarding table item of lower brush is deletion action, block in lower brush chained list
The operation of second mac address forwarding table item operates for addition, and without under during swiped through kernel, by the first mac address forwarding table item
Cancelled out each other with the second mac address forwarding table item and (perform and offset operation)；
Situation four：If the operation for treating the first mac address forwarding table item of lower brush is deletion action, block in lower brush chained list
The operation of second mac address forwarding table item operates for addition, and under having during swiped through kernel, by the first mac address forwarding table item
It is covered on the original position of the second mac address forwarding table item (execution overlapping operation)；
Situation five：If the operation for treating the first mac address forwarding table item of lower brush is deletion action, block in lower brush chained list
When the operation of second mac address forwarding table item is deletion action, no matter swiped through kernel under whetheing there is, by the second mac address forwarding table
Item is updated to the first mac address forwarding table item (performing renewal operation).
Five kinds of situations of the above are listed in table 1 below.
Table 1
| New | Old | Flag | Action |
| A | A | - | U |
| A | D | - | O |
| D | A | 0 | C |
| D | A | 1 | O |
| D | D | - | U |
New represents to treat the first mac address forwarding table item of lower brush in table 1；Old represents second blocked in lower brush chained list
Mac address forwarding table item；A represents addition operation, and D represents deletion action；
Flag indicates whether down swiped through kernel；1 represents it is that 0 represents no ,-represent to ignore；
Action represents associative operation；U represents renewal operation, and O represents overlapping operation, and C represents to offset.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of system of lower brush mac address forwarding table item, by
It is similar to a kind of foregoing method of lower brush mac address forwarding table item to solve the principle of problem in the system, therefore the reality of the system
The implementation for the method that may refer to lower brush mac address forwarding table item is applied, part is repeated and repeats no more.
In the specific implementation, the system of lower brush mac address forwarding table item provided in an embodiment of the present invention, is specifically included：
First judge module, for judge to treat the first mac address forwarding table item of lower brush with block in lower brush chained list the
Whether two mac address forwarding table items are identical；
Second judge module, for when the judged result of judge module is identical, according to the first mac address forwarding table item
With the mode of operation of the second mac address forwarding table item, judge whether the first mac address forwarding table item turns to the second MAC Address
Forwarding list item carries out counteracting operation, renewal operation or overlapping operation, and carries out corresponding operating according to the result judged；
Cache module, for when the judged result of judge module is to differ, the first MAC Address for treating lower brush to be forwarded
List item is cached to lower brush chained list.
, can be by above-mentioned several in the system of above-mentioned lower brush mac address forwarding table item provided in an embodiment of the present invention
The interaction of module, in systems during a large amount of mac address forwarding table item additions and deletions, when kernel blocks, ensure in lower brush chained list
In the absence of the mac address forwarding table item repeated.
A kind of method and system of lower brush mac address forwarding table item provided in an embodiment of the present invention, including：Lower brush is treated in judgement
The first mac address forwarding table item and the second mac address forwarding table item for blocking in lower brush chained list it is whether identical；If so, then root
According to the mode of operation of the first mac address forwarding table item and the second mac address forwarding table item, the first mac address forwarding table is judged
Whether item carries out counteracting operation, renewal operation or overlapping operation to the second mac address forwarding table item, and according to the result judged
Carry out corresponding operating；If it is not, the first mac address forwarding table item is then cached to lower brush chained list.Instantly brush MAC Address forwarding address
When blocking, the application can farthest reduce the MAC number accumulated in lower brush chain, ensure to be not present in lower brush chained list
The mac address forwarding table item repeated, only exists a mac address forwarding table item, avoids internal memory from exhausting, improve the steady of network performance
It is qualitative, solving when substantial amounts of MAC progress additions and deletions repeatedly in network system be present, lower brush MAC Address forwarding address resistance occur
The problem of causing network system performance degradation during plug.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
The method and system of lower brush mac address forwarding table item provided by the present invention are described in detail above, this
Apply specific case in text to be set forth the principle and embodiment of the present invention, the explanation of above example is only intended to
Help to understand method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, the think of according to the present invention
Think, in specific embodiments and applications there will be changes, in summary, this specification content should not be construed as pair
The limitation of the present invention.
Claims (7)
- A kind of 1. method of lower brush mac address forwarding table item, it is characterised in that including：Judge to treat whether are the first mac address forwarding table item of lower brush and the second mac address forwarding table item for blocking in lower brush chained list It is identical；If so, then sentenced according to the mode of operation of the first mac address forwarding table item and the second mac address forwarding table item Break and whether the first mac address forwarding table item carries out counteracting operation, renewal operation to the second mac address forwarding table item Or overlapping operation, and corresponding operating is carried out according to the result judged；If it is not, the first mac address forwarding table item is then cached to the lower brush chained list.
- 2. the method for lower brush mac address forwarding table item according to claim 1, it is characterised in that judging to treat lower brush The first mac address forwarding table item it is identical with the second mac address forwarding table item blocked in lower brush chained list after, specific step Including：If treating, the operation of the first mac address forwarding table item of lower brush operates for addition, the 2nd MAC blocked in the lower brush chained list When the operation of address repeat listing operates for addition, the second mac address forwarding table item is updated to first MAC Address Forwarding-table item.
- 3. the method for lower brush mac address forwarding table item according to claim 2, it is characterised in that judging to treat lower brush The first mac address forwarding table item it is identical with the second mac address forwarding table item blocked in lower brush chained list after, specific step Including：If treating, the operation of the first mac address forwarding table item of lower brush operates for addition, the 2nd MAC blocked in the lower brush chained list When the operation of address repeat listing is deletion action, the first mac address forwarding table item is covered in second MAC Address On the original position of forwarding-table item.
- 4. the method for lower brush mac address forwarding table item according to claim 3, it is characterised in that judging to treat lower brush The first mac address forwarding table item it is identical with the second mac address forwarding table item blocked in lower brush chained list after, specific step Including：If the operation for treating the first mac address forwarding table item of lower brush is deletion action, the 2nd MAC blocked in the lower brush chained list The operation of address repeat listing operates for addition, and without under during swiped through kernel, by the first mac address forwarding table item and institute The second mac address forwarding table item is stated to be cancelled out each other.
- 5. the method for lower brush mac address forwarding table item according to claim 4, it is characterised in that judging to treat lower brush The first mac address forwarding table item it is identical with the second mac address forwarding table item blocked in lower brush chained list after, specific step Including：If the operation for treating the first mac address forwarding table item of lower brush is deletion action, the 2nd MAC blocked in the lower brush chained list The operation of address repeat listing operates for addition, and under having during swiped through kernel, will the first mac address forwarding table item covering On the original position of the second mac address forwarding table item.
- 6. the method for lower brush mac address forwarding table item according to claim 5, it is characterised in that judging to treat lower brush The first mac address forwarding table item it is identical with the second mac address forwarding table item blocked in lower brush chained list after, specific step Including：If the operation for treating the first mac address forwarding table item of lower brush is deletion action, the 2nd MAC blocked in the lower brush chained list When the operation of address repeat listing is deletion action, the second mac address forwarding table item is updated to first MAC Address Forwarding-table item.
- A kind of 7. system of lower brush mac address forwarding table item, it is characterised in that including：First judge module, for judging to treat the first mac address forwarding table item of lower brush and the 2nd MAC blocked in lower brush chained list Whether address repeat listing is identical；Second judge module, for when the judged result of the judge module is identical, being forwarded according to first MAC Address Whether the mode of operation of list item and the second mac address forwarding table item, judge the first mac address forwarding table item to institute State the second mac address forwarding table item and carry out counteracting operation, renewal operation or overlapping operation, and phase is carried out according to the result judged It should operate；Cache module, for when the judged result of the judge module is to differ, the first MAC Address for treating lower brush to be forwarded List item is cached to the lower brush chained list.
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| CN201710867742.8A CN107635025A (en) | 2017-09-22 | 2017-09-22 | A kind of method and system of lower brush mac address forwarding table item |
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