CN102025583A - Refresh control method, system and network node - Google Patents
Refresh control method, system and network node Download PDFInfo
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- CN102025583A CN102025583A CN2009101619662A CN200910161966A CN102025583A CN 102025583 A CN102025583 A CN 102025583A CN 2009101619662 A CN2009101619662 A CN 2009101619662A CN 200910161966 A CN200910161966 A CN 200910161966A CN 102025583 A CN102025583 A CN 102025583A
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Abstract
The embodiment of the invention discloses a refresh control method and system as well as a network node, which can be used for reducing network node overhead and improving network performance. The method of the embodiment of the invention comprises: a refresh message is received, wherein the refresh message contains an event source identification, and the event source identification is used for indicating the cause for requesting a refresh forwarding table; if the fact that the event source identification is locally stored is determined, the refresh message is forwarded; and if the fact that the event source identification is not stored locally is determined, the refresh message is forwarded, the event source identification is stored locally, and a local forwarding table is refreshed according to the refresh message. The embodiment of the invention also provides the system and the network node thereof. The embodiment of the invention can effectively reduce the network node overhead and improve network performance.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of refresh control method, system and network node.
Background technology
Along with development of internet technology, the user is more and more higher to the requirement of reliability of data communication, so the ethernet ring network technology is arisen at the historic moment.
In the Ethernet ring protection technology; after first place's fault takes place in looped network; the network node that breaks down can report this fault to host node; host node is determined to transmit when refreshing; then can send update; this update is transmitted in this looped network, and the network node that receives this update then can refresh transmitting of self accordingly.
For multistage looped network, network node at the intersection of higher level's looped network and subordinate's looped network is called as boundary node, boundary node had both belonged to higher level's looped network, also belong to subordinate's looped network, after the update arrival boundary node that the host node in subordinate's looped network sends, boundary node can refresh transmitting of self, and this update other nodes in higher level's looped network are spread, and makes node in higher level's looped network also upgrade accordingly and transmits.
In realizing process of the present invention, the inventor finds that there is following defective at least in prior art: because boundary node is generally all a plurality of, and each boundary node all can spread updates by other nodes in higher level's looped network, may successively receive a plurality of identical updates so can cause the node in higher level's looped network, refresh and carry out repeated transmitting, therefore increase the expense of network node, influenced network performance.
Summary of the invention
The embodiment of the invention provides a kind of refresh control method, system and network node, can reduce the expense of network node, improves network performance.
The refresh control method that the embodiment of the invention provides comprises: receive update, comprise the event source sign in the described update, described event source sign is used to indicate this request to refresh the reason of transmitting; Preserve described event source sign if determine this locality, then transmitted described update; Do not preserve described event source sign as yet if determine this locality, then transmit described update, preserve described event source sign in this locality, and refresh this locality according to described update and transmit.
The refresh control method that the embodiment of the invention provides comprises: receive the fault notification that malfunctioning node sends, comprise the event source sign in the described fault notification, described event source sign is used to indicate this request to refresh the reason of transmitting; Generate update, comprise described event source sign in the described update; Send described update.
The network node that the embodiment of the invention provides comprises: the message receiving element, be used to receive update, and comprise the event source sign in the described update, described event source sign is used to indicate this request to refresh the reason of transmitting; Retransmission unit is used to transmit described update; The message checking unit is used to judge whether this locality preserves described event source sign; Preserve the unit, be used for when described event source sign is not preserved in this locality, preserving described event source in this locality and identifying; Refresh unit is used for refreshing this locality according to described update and transmitting when described event source sign is not preserved in this locality.
The network node that the embodiment of the invention provides comprises: the announcement receiving element, be used to receive the fault notification that malfunctioning node sends, and comprise the event source sign in the described fault notification, described event source sign is used to indicate this request to refresh the reason of transmitting; The message generation unit is used to generate update, comprises described event source sign in the described update; Packet sending unit is used to send described update.
The refresh control system that the embodiment of the invention provides, comprise: sending node, be used to receive the fault notification that malfunctioning node sends, comprise the event source sign in the described fault notification, described event source sign is used to indicate this request to refresh the reason of transmitting, generate update, comprise described event source sign in the described update, send described update; Receiving node, be used to receive the update that sending node sends, comprise the event source sign in the described update, transmit described update, judge whether this locality preserves described event source sign, when described event source sign is not preserved in this locality, preserve described event source sign in this locality, and refresh this locality according to described update and transmit.
As can be seen from the above technical solutions, the embodiment of the invention has the following advantages:
In the embodiment of the invention, network node is after receiving update, can't directly refresh transmitting according to update, and can judge local event source sign of whether preserving in the update, if preserve, illustrate that then network node transmitted for identical incident refreshed, then directly transmit update this moment, so can effectively prevent network node is that same incident repeats to refresh and transmits, and therefore can reduce the expense of network node, improves network performance.
Description of drawings
Fig. 1 is embodiment schematic diagram of refresh control method in the embodiment of the invention;
Fig. 2 is another embodiment schematic diagram of refresh control method in the embodiment of the invention;
Fig. 3 is a refresh control method application scenarios schematic diagram in the embodiment of the invention;
Fig. 4 is embodiment schematic diagram of network node in the embodiment of the invention;
Fig. 5 is another embodiment schematic diagram of network node in the embodiment of the invention;
Fig. 6 is a refresh control system embodiment schematic diagram in the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of refresh control method, system and network node, can reduce the expense of network node, improves network performance.
See also Fig. 1, embodiment of refresh control method comprises in the embodiment of the invention:
101 receive update;
In the present embodiment, the network node that is in the looped network may receive update when looped network breaks down, and this update is used to indicate transmitting of this locality refreshed.
Include the event source sign in the update in the present embodiment, this event source sign is used to indicate this request to refresh the reason of transmitting.
Need to prove that the network node in the present embodiment can be two-layer equipment, this is transmitted and is two-layer retransmitting table.
102, judge whether this locality preserves this event source sign, if then execution in step 104, if not, then execution in step 103;
After network node receives update, can from update, extract the event source sign, and judge whether this locality preserves this event source sign.
103, preserve the event source sign in this locality, and refresh this locality according to update and transmit;
If network node is determined this locality and is not preserved this event source sign, illustrate that then this network node did not refresh this locality according to this update as yet and transmits, therefore can refresh this locality according to update transmits, preserve this event source sign simultaneously in this locality, refreshed this locality with the indication network node and transmit according to this update.
In the present embodiment, refreshing the process of transmitting this locality according to update is those skilled in the art's common practise, does not limit herein.
104, transmit update.
In the present embodiment, preserved this event source sign, illustrated that then this network node refreshed this locality according to this update and transmits, need not to refresh once more, therefore can directly transmit this update if network node is determined this locality.
In addition, in the present embodiment, even network node is determined this locality and is not preserved this event source sign, also can transmit update, but need to prove, if network node is determined this locality and is not preserved this event source sign, then " preserve this event source sign in this locality ", " refreshing this locality according to update transmits " and " forwarding update " these three steps need not to limit the order of successively carrying out, and can carry out in proper order, also can carry out simultaneously, not limit herein.
Event source described in present embodiment sign can comprise the sign of the malfunctioning node that breaks down in actual applications, at least a in port numbers and the fault type.
The sign of the malfunctioning node in the present embodiment can be the unique address of this malfunctioning node, or unique name, does not limit herein.
Be understandable that, this event source sign can also comprise other information, be not limited to above-mentioned information, also not necessarily comprise above-mentioned full detail, if for example each network node consults to preserve the corresponding relation between a failure cause and the reason mark, then this event source sign also can be this reason mark, and for example arranging the reason mark of a certain network node when certain fault takes place a certain port is X, then the event source sign promptly can be this X, and the information that need not to carry other.
For the network node in the looped network, node failure and link failure all can be considered to port failure, and therefore, if all of the port in the looped network all has unique port numbers, then this event source sign can only be a port numbers.
If a certain network node has only a port may break down (for example another port and the another port link that connect of this network node in looped network all has been set up the high reliability assurance), then this event source sign can only be the sign of this network node (promptly being the equal of this port numbers).
If a certain fault type only may occur on the port of some specific port numbers, then this event source sign can only be this fault type also.
In actual applications, the form of expression of concrete event source sign does not limit, as long as make this event source sign can indicate this request to refresh the reason of transmitting.
In the present embodiment, because when network node determines that this does not preserve the event source sign, then can preserve this event source sign, therefore after network node receives a plurality of different updates, then can preserve a plurality of event source signs in this locality, for saving the memory space of network node, in actual applications, the event source sign that can also regularly preserve this locality be cleared up, so that network node is only preserved the event source sign that the last time preserves when refreshing this locality and transmitting in this locality.
In the present embodiment, network node is after receiving update, can't directly refresh transmitting according to update, and can judge local event source sign of whether preserving in the update, if preserve, illustrate that then network node transmitted for identical incident refreshed, then directly transmit update this moment, so can effectively prevent network node is that same incident repeats to refresh and transmits, and therefore can reduce the expense of network node, improves network performance.
Described the process that network node is handled the update that receives above, the process to network node generation update is described below, sees also Fig. 2, and another embodiment of refresh control method comprises in the embodiment of the invention:
201, receive the fault notification that malfunctioning node sends;
In the present embodiment, when network node broke down, this network node can send fault notification by pre-configured host node in looped network, carry the event source sign in this fault notification.
202, generate update;
Host node receives after the fault notification of malfunctioning node transmission, then can generate corresponding update, concrete generative process is those skilled in the art's a common practise, need to prove, host node generates after the update, and the sign of the event source in the fault notification is carried in this update.
203, send update.
Host node sends the update that this carries the event source sign to other network nodes, other network nodes are transmitted update, perhaps can also spread to higher level's looped network, in the process of transmitting, other network node can determine whether that needs are transmitted this locality according to the event source that carries in this update sign and refresh, the process of describing among detailed process and the aforementioned embodiment shown in Figure 1 is consistent, repeats no more herein.
Need to prove that the network node in the present embodiment can be two-layer equipment, this is transmitted and is two-layer retransmitting table.
The event source of describing among event source described in present embodiment sign and the aforementioned embodiment shown in Figure 1 identifies identical, repeats no more herein.
Need to prove, in actual applications, host node can also further judge whether to satisfy the flush condition that presets according to fault notification before generating update, if the fault that malfunctioning node reported can't influence data forwarding process, then host node also can not generate update, when having only the fault that reports when malfunctioning node to influence data forwarding process, host node just can generate update.
Be understandable that, this flush condition that presets can be provided with a corresponding relation in actual applications in host node, wherein which situation indication has satisfy the flush condition that presets, which does not satisfy the flush condition that presets, generally speaking, the situation that can influence data forwarding process promptly satisfies the flush condition that presets, and for example the port of malfunctioning node lost efficacy, the original blocked port of malfunctioning node is unlocked, and malfunctioning node loses normal power supply etc.; Otherwise, the situation that can not influence data forwarding process does not promptly satisfy the flush condition that presets, for example the data transmission bauds under certain port of malfunctioning node reduces (but still satisfying QoS requirement), the processor occupancy raising (but still satisfying QoS requirement) of malfunctioning node etc.
In the present embodiment, carry the event source sign in the fault notification that malfunctioning node reports, host node can carry this event source sign when generating update, owing to this event source sign can indicate this request to refresh the reason of transmitting, can determine whether that needs refresh this locality and transmit according to this event source sign so receive the network node of update, therefore can prevent effectively that network node from being that same incident repeats to refresh and transmits, thereby reduce the expense of network node, improve network performance.
Above-mentioned network node is described the processing procedure of the update that receives and the generative process of update,, with an instantiation refresh control method in the embodiment of the invention is described in detail below, see also Fig. 3 for ease of understanding:
Node S2, S6, S7, S8 and S4 form first looped network, node S1, S2, S3, S4 and S5 form second looped network, and node S2 and node S4 are boundary node, and they had both belonged to first looped network, also belong to second looped network, wherein first looped network is subordinate's looped network of second looped network, and therefore when the new message of the first looped network transfer hair brush, this update can be flooded to second looped network.
Supposing in the present embodiment that fault has taken place node S7, for example is that a certain port disconnects, then node S7 can report to host node S8 by fault notification with this fault, includes the event source sign in the fault notification that reports, and is specifically as follows: " A; B; port one disconnects ", and wherein, A represents that the sign of S7 (can be the address, also can be title, or be other unique identification), B represents the port numbers of S7, " port one disconnection " expression fault type.
Host node S8 determines according to concrete failure condition that needs refresh and transmits, and then generates update, and this update requires each node in first looped network to refresh this locality to transmit, host node S8 carries aforesaid event source sign in this update, i.e. " port one disconnects for A, B ".
The update that host node S8 sends can be forwarded to node S7 respectively, S6, and S2 and S4, these nodes can refresh this locality according to this update respectively and transmit, and preserve the event source sign in the update.
Because node S2 and node S4 are boundary node, therefore after node S2 and node S4 receive update, can be respectively to higher level's looped network of first looped network, i.e. second looped network, the diffusion update, the update that node S2 and node S4 send is the identical update of content, wherein all carry the event source sign, the node S1 in second looped network then, S3 and S5 can receive this update, because the delivering path of S2 and S4 may be different, so node S1, S3 and S5 may successively receive identical update twice, are that example describes with wherein node S1:
Node S1 at first receives a update, include the event source sign in this update, because being node S1, this receives this update (supposing it is the update that node S2 sends) first, therefore this event source sign can not preserved in node S1 this locality, then node S1 refreshes this locality according to this update and transmits, and transmit this update, simultaneously the sign of the event source in this update " A; B; port one disconnects " is kept at this locality, when node S1 received this update (supposing it is the update that node S4 sends) once more, node S1 determined that the event source in this update identifies " A, B; port one disconnects " and preserves in this locality, determine that then self refreshing this locality according to this update transmits, then node S1 directly transmits this update, transmits and can not refresh this locality once more.
Be understandable that node S3 in second looped network and the processing procedure of S5 are identical with the processing procedure of this node S1, repeat no more herein.
Need to prove, in actual applications, the interstitial content that is comprised in the concrete looped network, the number of looped network, the position of host node, the position at boundary node place, information such as the number of boundary node all are not limited to the description in the present embodiment.
In the present embodiment, network node is after receiving update, can't directly refresh transmitting according to update, and can judge local event source sign of whether preserving in the update, if preserve, illustrate that then network node transmitted for identical incident refreshed, then directly transmit update this moment, so can effectively prevent network node is that same incident repeats to refresh and transmits, and therefore can reduce the expense of network node, improves network performance.
Above the refresh control process in the embodiment of the invention is described, below the network node embodiment in the embodiment of the invention is described, see also Fig. 4, embodiment of the network node in the embodiment of the invention comprises:
Network node in the present embodiment can further include:
Need to prove that the network node in the present embodiment can be two-layer equipment, this is transmitted and is two-layer retransmitting table.
For ease of understanding, be described with a concrete application scenarios each unit below the network node in the present embodiment:
In the present embodiment, the message receiving element 401 that is in the network node in the looped network may receive update when looped network breaks down, and this update is used to indicate transmitting of this locality refreshed.
Include the event source sign in the update in the present embodiment, this event source sign is used to indicate this request to refresh the reason of transmitting.
After message receiving element 401 received update, message checking unit 403 can extract the event source sign from update, and judged whether this locality preserves this event source sign.
If message checking unit 403 is determined this locality and is not preserved this event source sign, illustrate that then this network node did not refresh this locality according to this update as yet and transmits, therefore refresh unit 404 can refresh this locality according to update and transmits, preserve unit 405 simultaneously and preserve this event source sign in this locality, refreshed this locality with the indication network node and transmit according to this update.
In the present embodiment, if message checking unit 403 is determined this locality and has been preserved this event source sign, illustrate that then this network node refreshed this locality according to this update and transmits, need not to refresh once more, so retransmission unit 402 can directly be transmitted this update.
In addition, in the present embodiment, do not preserve this event source sign even this locality is determined in message checking unit 403, retransmission unit 402 also can be transmitted update.
The implication that the event source of describing among the implication of event source described in present embodiment sign and the preceding method embodiment identifies is identical, repeats no more herein.
In the present embodiment, because when message checking unit 403 determines that this does not preserve the event source sign, preserve 405 of unit and can preserve this event source sign, therefore after network node receives a plurality of different updates, then can preserve a plurality of event source signs in this locality, for saving the memory space of network node, in actual applications, the event source sign that maintenance unit 406 in the network node can also regularly be preserved this locality be cleared up, so that network node is only preserved the event source sign that the last time preserves when refreshing this locality and transmitting in this locality.
In the present embodiment, message receiving element 401 is after receiving update, retransmission unit 402 can't directly refresh transmitting according to update, but can judge local event source sign of whether preserving in the update by message checking unit 403, if preserve, illustrate that then network node refreshes and transmitted for identical incident, then this moment, retransmission unit 402 was directly transmitted update, so can effectively prevent network node is that same incident repeats to refresh and transmits, therefore can reduce the expense of network node, improve network performance.
See also Fig. 5, another embodiment of the network node in the embodiment of the invention comprises:
Announcement receiving element 501 is used to receive the fault notification that malfunctioning node sends, and comprises the event source sign in the described fault notification, and described event source sign is used to indicate this request to refresh the reason of transmitting;
Message generation unit 503 is used to generate update, comprises described event source sign in the described update;
Packet sending unit 504 is used to send described update.
Network node in the present embodiment can further include:
Announcement verification unit 502 is used for judging whether the event source sign of described fault notification satisfies the flush condition that presets, if satisfy, then triggers described message generation unit and carries out corresponding operating.
Need to prove that the network node in the present embodiment can be two-layer equipment, this is transmitted and is two-layer retransmitting table.
For ease of understanding, be described with a concrete application scenarios each unit below the network node in the present embodiment:
In the present embodiment, when network node broke down, this network node can send fault notification by the announcement receiving element 501 of pre-configured host node in looped network, carry the event source sign in this fault notification.
Announcement receiving element 501 receives after the fault notification of malfunctioning node transmission, announcement verification unit 502 judges whether to satisfy the flush condition that presets, be whether the fault that malfunctioning node reports can influence forwarding of data, if meeting, promptly satisfy the flush condition that presets, then trigger message generation unit 503 and generate corresponding update, simultaneously the sign of the event source in the fault notification is carried in this update.
Need to prove that in the present embodiment, concrete flush condition can be identical with the flush condition described among the aforementioned embodiment shown in Figure 2, repeats no more herein.
Packet sending unit 504 sends the update that this carries the event source sign to other network nodes afterwards, and other network nodes are transmitted update, perhaps can also spread to higher level's looped network.
In the present embodiment, carry the event source sign in the fault notification that malfunctioning node reports, message generation unit 503 can carry this event source sign when generating update, owing to this event source sign can indicate this request to refresh the reason of transmitting, can determine whether that needs refresh this locality and transmit according to this event source sign so receive the network node of update, therefore can prevent effectively that network node from being that same incident repeats to refresh and transmits, thereby reduce the expense of network node, improve network performance.
Above-mentioned network node embodiment in the embodiment of the invention is described, need to prove, above-mentioned is according to the concrete function of network node in looped network network node to be divided, be understandable that, in actual applications, before the network equipment is formed looped network, can't pre-determine which network equipment and be used to realize any function, therefore the function of the network equipment can be integrated in the same network equipment among above-mentioned Fig. 4 and the embodiment shown in Figure 5, be that each network equipment all possesses identical functions (promptly comprising all functional units among Fig. 4 and the embodiment shown in Figure 5) after being produced, and can only use part of functions wherein just in being applied to concrete looped network the time.
See also Fig. 6, the refresh control system embodiment comprises in the embodiment of the invention:
Sending node 601, be used to receive the fault notification that malfunctioning node sends, comprise the event source sign in the described fault notification, described event source sign is used to indicate this request to refresh the reason of transmitting, generate update, comprise described event source sign in the described update, send described update;
Receiving node 602, be used to receive the update that sending node 601 sends, comprise the event source sign in the described update, transmit described update, judge whether this locality preserves described event source sign, when described event source sign is not preserved in this locality, preserve described event source sign in this locality, and refresh this locality according to described update and transmit.
Sending node 601 in the present embodiment can also be further used for judging whether the event source sign in the described fault notification satisfies the flush condition that presets, if satisfy, then triggers the step of carrying out described generation update.
The event source sign that receiving node 602 in the present embodiment can also be further used for this locality is preserved safeguards, makes the local event source sign that the last time preserves when refreshing this locality and transmitting of preserving at least.
Need to prove that the sending node 601 in the present embodiment specifically can be identical with aforementioned network node shown in Figure 5, the receiving node 602 in the present embodiment specifically can be identical with aforementioned network node shown in Figure 4,
Need to prove that sending node 601 in the present embodiment and receiving node 602 can be two-layer equipment, this is transmitted and is two-layer retransmitting table.
Sending node 601 in the present embodiment and receiving node 602 all belong to the node in the looped network, sending node 601 can belong to first looped network, receiving node 602 can belong to second looped network, wherein, first looped network is subordinate's looped network of second looped network, can also comprise more network node (not illustrating in the drawings) in first looped network and second looped network.
In the present embodiment, receiving node 602 is after receiving update, can't directly refresh transmitting according to update, and can judge local event source sign of whether preserving in the update, if preserve, illustrate that then receiving node 602 transmitted for identical incident refreshed, then directly transmit update this moment, so can effectively prevent network node is that same incident repeats to refresh and transmits, and therefore can reduce the expense of network node, improves network performance.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.
More than a kind of refresh control method provided by the present invention, system and network node are described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, part in specific embodiments and applications all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (13)
1. a refresh control method is characterized in that, comprising:
Receive update, comprise the event source sign in the described update, described event source sign is used to indicate this request to refresh the reason of transmitting;
Preserve described event source sign if determine this locality, then transmitted described update;
Do not preserve described event source sign as yet if determine this locality, then transmit described update, preserve described event source sign in this locality, and refresh this locality according to described update and transmit.
2. method according to claim 1 is characterized in that, described method also comprises:
The event source sign that preserve this locality is cleared up, make the local the last event source sign of preserving when refreshing this locality and transmitting of only preserving.
3. method according to claim 1 and 2 is characterized in that, described event source sign comprises reason mark, the sign of malfunctioning node, the port numbers of malfunctioning node, and at least a in the fault type that takes place of malfunctioning node.
4. a refresh control method is characterized in that, comprising:
Receive the fault notification that malfunctioning node sends, comprise the event source sign in the described fault notification, described event source sign is used to indicate this request to refresh the reason of transmitting;
Generate update, comprise described event source sign in the described update;
Send described update.
5. method according to claim 4 is characterized in that, also comprises before the described generation update:
Judge that whether the event source sign in the described fault notification satisfies the flush condition that presets, if satisfy, then triggers the step of described generation update.
6. according to claim 4 or 5 described methods, it is characterized in that described event source sign comprises reason mark, the sign of malfunctioning node, the port numbers of malfunctioning node, and at least a in the fault type that takes place of malfunctioning node.
7. a network node is characterized in that, comprising:
The message receiving element is used to receive update, comprises the event source sign in the described update, and described event source sign is used to indicate this request to refresh the reason of transmitting;
Retransmission unit is used to transmit described update;
The message checking unit is used to judge whether this locality preserves described event source sign;
Preserve the unit, be used for when described event source sign is not preserved in this locality, preserving described event source in this locality and identifying;
Refresh unit is used for refreshing this locality according to described update and transmitting when described event source sign is not preserved in this locality.
8. network node according to claim 7 is characterized in that, described network node also comprises:
Maintenance unit, the event source sign that is used for this locality is preserved is cleared up, and makes the local the last event source sign of preserving when refreshing this locality and transmitting of only preserving.
9. a network node is characterized in that, comprising:
The announcement receiving element is used to receive the fault notification that malfunctioning node sends, and comprises the event source sign in the described fault notification, and described event source sign is used to indicate this request to refresh the reason of transmitting;
The message generation unit is used to generate update, comprises described event source sign in the described update;
Packet sending unit is used to send described update.
10. network node according to claim 9 is characterized in that, described network node also comprises:
The announcement verification unit is used for judging whether the event source sign of described fault notification satisfies the flush condition that presets, if satisfy, then triggers described message generation unit and carries out corresponding operating.
11. a refresh control system is characterized in that, comprising:
Sending node, be used to receive the fault notification that malfunctioning node sends, comprise the event source sign in the described fault notification, described event source sign is used to indicate this request to refresh the reason of transmitting, generate update, comprise described event source sign in the described update, send described update;
Receiving node, be used to receive the update that sending node sends, comprise the event source sign in the described update, transmit described update, judge whether this locality preserves described event source sign, when described event source sign is not preserved in this locality, preserve described event source sign in this locality, and refresh this locality according to described update and transmit.
12. refresh control according to claim 11 system is characterized in that, described sending node is used for also judging whether the event source sign of described fault notification satisfies the flush condition that presets, if satisfy, then triggers the step of carrying out described generation update.
13., it is characterized in that the event source sign that described receiving node also is used for this locality is preserved is cleared up according to claim 11 or 12 described refresh control systems, make the local the last event source sign of preserving when refreshing this locality and transmitting of only preserving.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107181692A (en) * | 2017-07-15 | 2017-09-19 | 深圳市华琥技术有限公司 | A kind of forward table refresh control method |
| CN107181693A (en) * | 2017-07-15 | 2017-09-19 | 深圳市华琥技术有限公司 | A kind of method and system for preventing from repeatedly refreshing forward table |
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| WO2007086539A1 (en) * | 2006-01-25 | 2007-08-02 | Nec Corporation | Network node, frame transfer program, and frame transfer method |
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| CN107181692A (en) * | 2017-07-15 | 2017-09-19 | 深圳市华琥技术有限公司 | A kind of forward table refresh control method |
| CN107181693A (en) * | 2017-07-15 | 2017-09-19 | 深圳市华琥技术有限公司 | A kind of method and system for preventing from repeatedly refreshing forward table |
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