CN103560898A - Port state setting method, and port priority selection method and device - Google Patents
Port state setting method, and port priority selection method and device Download PDFInfo
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Abstract
The embodiments of the invention disclose a port state setting method, and port priority selection method and device. The setting method comprises the following steps: in the link failure recovery process, a first LACP message for establishing connection is sent by a transmitting end to a receiving end, wherein the first LACP message comprises delay selection information; when an acknowledgement message responding to the first LACP message sent by the receiving end is received by the transmitting end, the delay timing process is started, and the port state of a corresponding link on the transmitting end is set to the standby state; and when the time of the delay timing process reaches a default delay time, if ports of the corresponding link on the transmitting end are normal, then the state of the ports of the corresponding link on the transmitting end is set to the selected state, and a second LACP information of the received acknowledgement message is sent to the receiving end, so that when the second LACP information is received by the receiving end, the state of the ports of a corresponding link on the receiving end is set to the selected state. According to the invention, the possibility of link repeated shock can be reduced, and the link quality can be improved.
Description
Technical field
The present invention relates to networking technology area, particularly system of selection and the device of a kind of port status method to set up, port priority.
Background technology
Link Aggregation Control Protocol based on IEEE802.3ad standard (LACP, Link Aggregation Control Protocol) is a kind of link dynamic aggregation and agreement depolymerizing of realizing.LACP is by Link Aggregation Control Protocol Data Unit (LACPDU, Link Aggregation Control Protocol Data Unit) and opposite end interactive information.In the Trunk of static LACP mode, add after member interface, these interfaces will be noticed the information such as system priority, system media access control (MAC, Media Access Control) address, interface priority, interface number and operation key (Key) of oneself by sending LACPDU to opposite end.Opposite end receives after these information, the information that these information and its own interfaces are preserved compares, with select can polymerization interface, both sides jointly can polymerization using these interface as Active Interface, and determine corresponding active link, then, LACP protocol state machine is after the normal transmitting-receiving and negotiation of three protocol massages, choose Active Interface, and the Active Interface forwarding data of choosing by this.
At present, when data retransmission, if the quality of this Active Interface respective links is not good, obstructed situation when logical while occurring such as link, the Active Interface of choosing is after link down, become again non-selected state, particularly, if be situation about interconnecting by transmission equipment in networking, such as router one and router two interconnect by transmission equipment, if transmission quality is poor, now on router one, physical interface does not break down, but link is still obstructed, now, router one needs LACP to survey by three message cycles, when can not receive the protocol massages of this router two in the cycle, three messages think link failure, the Interface status of this link is set to non-selected state.But in this process, router one can continue to be in selected state to this, but the obstructed interface of physical link E-Packets, this will cause sending three message cycles (such as, it while being configured to fast fast pattern, is 3 seconds, during slow Slow pattern, be 90 seconds) a large amount of packet loss of interior appearance, thus reduced customer experience.
In addition, in existing LACP technology, also support the backup mode of N:M, for N+M the physical interface in same link aggregation group (Eth-Trunk), can arrange and choose at most N interface in forwarding state, and other M physical interface is in the non-Status of Backups of choosing, only in the middle of the interface of having chosen, certain link breaks down, can allow interface in Status of Backups replace the interface of fault, enter selected state.At present, for specifically choosing which interface, not choosing which interface to determine according to interface priority.And the priority of interface is human configuration, be static attribute, pre-determine the preferential height of choosing which interface, as choosing interface, the priority of which interface, as backup interface.And in actual applications, because link exists dynamic change, cannot determine which interface needs preferably according to artificial prediction, which interface does not need preferably.
Therefore, in prior art, after link failure recovery, the interface of fault is chosen very soon again, if link-quality is unstable, easily occurs concussion repeatedly; And under LACP link aggregation N:M backup instances, port priority is static configuration, cannot dynamically adjusts according to link actual motion quality, thereby reduce the link-quality of selected state.
Summary of the invention
A kind of link port system of selection and device are provided in the embodiment of the present invention, to solve after prior art link failure recovery, because link-quality is unstable, and the technical problem that causes link repeatedly to shake.
A kind of system of selection and device of port priority are provided in the embodiment of the present invention, to solve in prior art, cannot have carried out Dynamic Selection port according to link actual motion quality, and caused the technical problem of the link-quality attenuating of selected state.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technical scheme:
First aspect provides a kind of method to set up of port status, and described method comprises:
When link failure recovery, transmitting terminal sends the first Link Aggregation Control Protocol LACP message connecting to receiving terminal, and a described LACP message comprises: delay selection information;
Described transmitting terminal when receiving the acknowledge message of the described LACP message of response that described receiving terminal sends, trigger timing, and on described transmitting terminal, the state of the port of corresponding described link is set to stand-by state;
When the time of described time delay timing reaches default delay value, if the port of corresponding described link is normal on described transmitting terminal, on described transmitting terminal, the state of the port of corresponding described link is set to selected state, and to described receiving terminal, send the 2nd LACP information that receives described acknowledge message, so that described receiving terminal when receiving described the 2nd LACP information, arranges the state of the port of corresponding described link on described receiving terminal, it is selected state.
In the possible implementation of the first of first aspect, described delay selection information is for illustrating the information that postpones to choose port.
In conjunction with the possible implementation of the first of first aspect or first aspect, in the possible implementation of the second, described delay selection information is added in the reservation Reserved field of a described LACP message.
The first or the possible implementation of the second in conjunction with first aspect or first aspect, in the third possible implementation, also comprise:
After sending a described LACP message, if do not receive the acknowledge message of the described LACP message of response of receiving terminal transmission in Preset Time, on described transmitting terminal, the shape body of the port of respective links is set to non-selected state.
Second aspect provides a kind of method to set up of port status, and described method comprises:
When link failure recovery, the first Link Aggregation Control Protocol LACP message that receiving terminal receiving end/sending end sends, a described LACP message comprises: delay selection information;
Described receiving terminal sends the acknowledge message of the described LACP message of response to described transmitting terminal, and is stand-by state according to the state that described delay selection information arranges the port of respective links on described receiving terminal;
Described receiving terminal receives the 2nd LACP information of the described acknowledge message of response of described transmitting terminal transmission;
Described receiving terminal is when receiving described the 2nd LACP information, and the state that the port of respective links on described receiving terminal is set is selected state.
In the possible implementation of the first of second aspect, described delay selection information is for illustrating the information that postpones to choose port.
In conjunction with the possible implementation of the first of second aspect or second aspect, in the possible implementation of the second, described delay selection information is added in the reservation Reserved field of a described LACP message.
The third aspect provides a kind of setting device of port status, comprising:
The first transmitting element, for when the link failure recovery, sends the first Link Aggregation Control Protocol LACP message connecting to receiving terminal, a described LACP message comprises: delay selection information;
Time delay timing unit, for described while receiving the acknowledge message of the described LACP message of response that described receiving terminal sends, trigger timing;
The first setting unit, for when the described time delay timing unit time delay timing, the state of the port of described link is set to stand-by state;
The second setting unit, when reaching default delay value in described time delay timing, if the port of corresponding described link is normal on described device, on described device, the state of the port of corresponding described link is set to selected state;
The second transmitting element, for send the 2nd LACP information that receives described acknowledge message to described receiving terminal, so that described receiving terminal is when receiving described the 2nd LACP information, on described device, the state of the port of corresponding described link is set to selected state.
In the possible implementation of the first of the third aspect, the delay selection information in the described LACP message that described the first transmitting element sends is for illustrating the information that postpones to choose port.
In conjunction with the possible implementation of the first of the third aspect or the third aspect, in the possible implementation of the second, the described delay selection information that described the first transmitting element sends is added in the reservation Reserved field of a described LACP message.
The first or the possible implementation of the second in conjunction with the third aspect or the third aspect, in the third possible implementation, also comprise:
The 3rd setting unit, for sending after a described LACP message at described the first transmitting element, if do not receive the acknowledge message of the described LACP message of response of receiving terminal transmission in Preset Time, on described device, the state of the port of corresponding described link is set to non-selected state.
Fourth aspect provides a kind of setting device of port status, comprising:
The first receiving element, for when the link failure recovery, the first Link Aggregation Control Protocol LACP message that receiving end/sending end sends, a described LACP message comprises: delay selection information;
The first transmitting element, for sending the acknowledge message of the described LACP message of response to described transmitting terminal;
The first setting unit, for when described the first transmitting element sends described acknowledge message, is set to stand-by state according to the state of the port of corresponding described link on the described device of described delay selection information;
The second receiving element, for receiving the 2nd LACP information of the described acknowledge message of response of described transmitting terminal transmission;
The second setting unit, for when described receiving element receives described the 2nd LACP information, on described device, the state of the port of corresponding described link is set to selected state.
In the possible implementation of the first of fourth aspect, the described delay selection information in the described LACP message that described the first receiving element receives is for illustrating the information that postpones to choose port.
In conjunction with the possible implementation of the first of fourth aspect or fourth aspect, in the possible implementation of the second, the described delay selection information that described the first receiving element receives is added in the reservation Reserved field of a described LACP message.
The 5th aspect provides a kind of system of selection of port priority, comprising:
Determine the port dynamic priority information of equipment;
When link failure recovery, according to the port on described port dynamic priority Information Selection equipment, to carry out data retransmission.
In the possible implementation of the first aspect the 5th, the port dynamic priority information of described definite equipment, comprising:
Obtain the static priority information of equipment upper port;
Calculate real-time link quality evaluation information and link history run quality evaluation information on described equipment;
Calculate described static priority information, real-time link quality evaluation information and link history run quality evaluation information sum, obtain described port dynamic priority information.
In conjunction with the possible implementation of the first of the 5th aspect or the 5th aspect, in the possible implementation of the second, real-time link quality evaluation information and link history run quality evaluation information on the described equipment of described calculating, comprising:
Obtain packet loss and the time delay of link, calculate real-time packet loss and the time delay of described link, obtain described link-quality numerical value, and using described link-quality numerical value as real-time link quality evaluation information;
Obtain the historical information of the Down event of described port and the duration of link down; According to described Down event and described historical information, evaluate, obtain described link-quality evaluation of estimate, and using described link-quality evaluation of estimate as link history run quality evaluation information.
The 6th aspect provides a kind of choice device of port priority, comprising:
Determining unit, for determining the port dynamic priority information of equipment;
Selected cell, for when the link failure recovery, according to the port on described port dynamic priority Information Selection equipment, to carry out data retransmission.
In the possible implementation of the first aspect the 6th, described determining unit comprises:
The first acquiring unit, for obtaining the static priority information of equipment upper port;
The first computing unit, for calculating real-time link quality evaluation information and link history run quality evaluation information on described equipment;
The second computing unit, for calculating described static priority information, real-time link quality evaluation information and link history run quality evaluation information sum, obtains described port dynamic priority information.
In conjunction with the possible implementation of the first of the 6th aspect or the 6th aspect, in the possible implementation of the second, described the first computing unit comprises:
Second acquisition unit, for obtaining packet loss and the time delay of link;
The 3rd computing unit, for calculating real-time packet loss and the time delay of described link, obtains described link-quality numerical value, and using described link-quality numerical value as real-time link quality evaluation information;
The 3rd acquiring unit, for obtaining the historical information of the Down event of described port and the duration of link down;
Evaluation unit, for evaluating according to described Down event and described historical information, obtains described link-quality evaluation of estimate, and using described link-quality evaluation of estimate as link history run quality evaluation information.
As shown from the above technical solution, in the embodiment of the present invention, when link failure just recovers, transmitting terminal chooses the delay selection information of port to send to receiving terminal by postponing, so that receiving terminal postpones to choose the port of this link, and when reaching default delay value, reinform the port that receiving terminal is chosen this link, carry out the forwarding of data.That is to say, the embodiment of the present invention has just been recovered and not before complete stability, by time delay, has chosen port at link, has reduced the possibility that link shakes repeatedly, has improved link-quality.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of a kind of port status method to set up that Fig. 1 provides for the embodiment of the present invention;
Another flow chart of a kind of port status method to set up that Fig. 2 provides for the embodiment of the present invention;
The flow chart of the system of selection of a kind of port priority that Fig. 3 provides for the embodiment of the present invention;
The structural representation of a kind of port status setting device that Fig. 4 provides for the embodiment of the present invention;
Another structural representation of a kind of port status setting device that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the choice device of a kind of port priority that Fig. 6 provides for the embodiment of the present invention;
Another structural representation of the choice device of a kind of port priority that Fig. 7 provides for the embodiment of the present invention;
The structural representation of a kind of network equipment that Fig. 8 provides for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides a kind of method to set up and device of port status, when link-recovery is used, directly port (or interface) is not set to choose (SELECTED) state, but the time of delay setting in advance (being time corresponding to delay selection information), first this port is set to standby (STANDBY) state or wait state, under " delay selection " state, if there is overtime (the overtime TRUE that is labeled as) in message, or when sync mark position is FALSE, not normal negotiations of this interface is described, now this interface enters UNSELECTED state, stop time delay.Until after this delay time finishes, if do not occur that message is overtime, then the state that this port is set is selected state, so that carry out data retransmission by this port.The embodiment of the present invention is by time corresponding to " delay selection " of configuration, at link not before complete stability, can avoid the link of choosing immediately this port corresponding, thereby avoid link not stop the technical problem of concussion.
In addition, the embodiment of the present invention also provides a kind of system of selection and device of port priority, when link failure recovery, according to definite port dynamic priority information, the port that preferred priority is high, the measured link of matter, carries out data retransmission, thereby improved the link-quality of choosing port, also improved the quality of whole link aggregation simultaneously.
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 to clear, complete description, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the flow chart of a kind of port status method to set up that Fig. 1 provides for the embodiment of the present invention, described port, also can be described as interface in this embodiment.Described method comprises:
S101: when link failure recovery, transmitting terminal sends the first Link Aggregation Control Protocol LACP message connecting to receiving terminal, and a described LACP message comprises: delay selection information;
In this S101, when the link failure of transmitting terminal and receiving terminal has just recovered, transmitting terminal need to connect by Handshake Protocol again with receiving terminal.The present embodiment carries delay selection information in the LACP message sending to receiving terminal, so that receiving terminal is chosen port late receiving the message time delay that carries this delay selection information.Wherein, this delay selection information is for explanation, to postpone to choose the information of port.Specifically will postpone how long choose port, be predefined by user.It can be 30 seconds that the default delay value of port is chosen in the delay of setting, and 50 seconds or 90 seconds can be also 10 seconds etc., specifically can carry out according to actual needs adaptability setting, and the present embodiment is not restricted.
Wherein, described delay selection information can be added in the reservation Reserved field of a described LACP message, that is to say, in the reservation Reserved of LACP message field, delay selection flag is set, for identifying the time of delay selection.
Optionally, in a LACP message, what in this message, arrange is overtimely labeled as vacation (FALSE), when sync mark position is true (TRUE), enters " delay selection " state.And under " delay selection " state, the selection logic of transmitting terminal (Selection Logic) can be set to STANDBY state by this port, rather than is set to SELECTED state.
Wherein, the position of the marker bit of " delay selection " in a LACP message is as shown in table 1, and the definition of the marker bit of " delay selection " in Reserved field is as shown in table 2, wherein, the marker bit of " delay selection " also can be called the marker bit that time delay is chosen.
Table 1
Table 2
In addition, receiving terminal is after receiving a LACP message that carries this delay selection information, to described transmitting terminal, respond the acknowledge message of a described LACP message, to inform transmitting terminal, receiving terminal has received the LACP message that comprises delay selection information that transmitting terminal sends.
S102: described transmitting terminal when receiving the acknowledge message of the described LACP message of response that described receiving terminal sends, trigger timing, and on described transmitting terminal, the state to port that should link is set to stand-by state;
In this S102, if transmitting terminal receives the acknowledge message of the described LACP message of response of receiving terminal transmission, start the timing of delay timer trigger, and on transmitting terminal, the state to port (being the port of the link of transmitting terminal) that should link is set to stand-by state.Wherein, this default delay value, is that user preset arranges, and can be 50 seconds, can be also 60 seconds, can also be 30 seconds etc., specifically can carry out adaptability revision according to actual conditions.
Optionally, in this embodiment, transmitting terminal is after sending a described LACP message, if do not receive the acknowledge message of the described LACP message of response of receiving terminal transmission in Preset Time, on transmitting terminal, the state of the port of corresponding described link is set to non-selected state.That is to say, it is unsuccessful that both sides consult to set up link, or the port of receiving terminal is undesired etc.
Certainly, also can be under " delay selection " state, if there is overtime (the overtime TRUE that is labeled as) in the LACP message sending, or when sync mark position is FALSE, not normal negotiations of this port is described, now this port enters UNSELECTED state, stops the time delay timing of " delay selection " timer.
S103: when the time of described time delay timing reaches default delay value, if the port to should link of described transmitting terminal is normal, state to port that should link on described transmitting terminal is set to selected state, and to described receiving terminal, send the 2nd LACP information that receives described acknowledge message, so that described receiving terminal when receiving described the 2nd LACP information, arranges on described receiving terminal the state of port that should link, it is selected state.
When the time delay timing time of delay timer reaches on default delay value and this transmitting terminal normal to port that should link, transmitting terminal this self is set to selected state to the state of port that should link, and to receiving terminal, send the 2nd LACP information receive described acknowledge message, so that inform that receiving terminal can connect, and receiving terminal is after receiving the 2nd LACP information of transmitting terminal transmission, state to port that should link on receiving terminal is also set to selected state, and then both sides can carry out data retransmission.
That is to say, when delay counter meets or exceeds default delay value, if the port to should link of this transmitting terminal is normal, remove " delay selection " mark, the port of this transmitting terminal enters Selection Logic and selects, if chosen, enter SELECTED state, to carry out data retransmission.
In the embodiment of the present invention, when link failure just recovers, transmitting terminal chooses the delay selection information of port to send to receiving terminal by postponing, so that receiving terminal postpones to choose the port of this link, and when the port to should link that reaches default delay value and this transmitting terminal is normal, reinform receiving terminal and choose the port of this link, carry out the forwarding of data.That is to say, the embodiment of the present invention has just been recovered and not before complete stability, by time delay, has chosen port at link, has reduced the possibility that link shakes repeatedly, has improved link-quality.
Refer to Fig. 2, the flow chart of the method to set up of a kind of port status that Fig. 2 provides for the embodiment of the present invention, described method comprises:
S201: when link failure recovery, the first Link Aggregation Control Protocol LACP message that receiving terminal receiving end/sending end sends, a described LACP message comprises: delay selection information.
Wherein, described delay selection information is used for illustrating the information that postpones to choose port; Described delay selection information can be added in the reservation Reserved field of a described LACP message.
When link failure recovery, if receiving terminal receives the LACP message with delay selection information that transmitting terminal sends, explanation, the port to should link of receiving terminal is normal condition.
S202: described receiving terminal sends the acknowledge message of the described LACP message of response to described transmitting terminal, and be stand-by state according to the state that described delay selection information arranges the port of respective links on described receiving terminal;
Receiving terminal, after receiving a LACP message, sends the acknowledge message of the described LACP message of response to transmitting terminal, this acknowledge message is used for informing transmitting terminal, and this receiving terminal has received a LACP message.Then, the state to port that should link of receiving terminal self is set to stand-by state, and not the state of the port of this link is set to selected state.Now, the state of the two ends port of this link is all in stand-by state.
S203: described receiving terminal receives the 2nd LACP information of the described acknowledge message of response of described transmitting terminal transmission;
That is to say, at transmitting terminal, receive after described acknowledge message, just think receiving terminal the state of the port of this link be set to stand-by state, can start the timing of delay timer trigger, and until delay time is normal to port that should link on (reaching this default delay time value) this transmitting terminal while finishing, transmitting terminal sends the 2nd LACP information that receives described acknowledge message to receiving terminal, so that inform receiving terminal, the state of port that should link has been set to selected state on can receiving terminal.
S204: described receiving terminal is when receiving described the 2nd LACP information, and the state that the port of corresponding described link on described receiving terminal is set is selected state.
When receiving terminal receives described the 2nd LACP information, both sides' link is set up.
In the embodiment of the present invention, when receiving terminal receives a LACP message that carries delay selection information, time delay is chosen on receiving terminal port that should link, first the state of this port on receiving terminal is set to stand-by state, until receive after the information that time delay that transmitting terminal sends finishes, just on receiving terminal, the state to port that should link is set to selection mode, so that carry out data retransmission.The embodiment of the present invention has just been recovered and not before complete stability, by time delay, has chosen port at link, has reduced the possibility that link shakes repeatedly, has improved link-quality.
Backup mode at existing N:M, for N+M the physical port in same link aggregation group (Eth-Trunk), can arrange and choose at most N port in forwarding state, and other M physical port is in the Status of Backups of not choosing, only there is link failure in certain in the middle of the port of having chosen, can allow port in Status of Backups replace the port of fault, enter selected state.And in prior art, for specifically choosing which port, not choosing determining according to port priority of which port.Port priority is human configuration at present, is static attribute, is equivalent to artificial which port of having determined and preferentially selects, and which port is as backup.And in actual applications, port priority is seldom configured when existing network is applied, often use its default value, reason is that link often exists dynamic, which cannot need preferably by artificial prediction port, which bad choosing, this makes LACP when existing network is applied, and can not automatically select the link of better quality.
And based on this, the embodiment of the present invention provides a kind of system of selection of port priority, its flow chart as shown in Figure 3, in this embodiment, on the basis of the interface priority (also can be called port priority) of user's static configuration, according to the duration of port Down event, link down, the link information such as delay variation, packet loss of link even, port priority is dynamically adjusted, for example, when every Down once reduces 100(port UP, recover 50), every interruption is reduced the every normal communication of 10(for 1 minute and is recovered 10 in 1 hour).By this means, can allow the poor port priority of link-quality by dynamic reducing, thereby in port is selected, be in a disadvantageous position and avoid choosing, thereby can guarantee automatically to choose the link-quality of link always better.Described method comprises:
S301: the port dynamic priority information of determining equipment;
Optionally, a kind of mode of port dynamic priority information of definite equipment is:
1) obtain the static priority information of equipment upper port;
Wherein, described static priority information be user in advance for port arrangement, generally, this configuration information is called " port static priority ", its scope normally 0 to 65535, its numeral is larger, represents that the priority of port is lower, is defaulted as 32768.
2) calculate real-time link quality evaluation information and link history run quality evaluation information on described equipment;
Wherein, real-time link quality evaluation information on the described equipment of described calculating, comprising: obtain packet loss and the time delay of link, calculate real-time packet loss and the time delay of described link, obtain described link-quality numerical value, and using described link-quality numerical value as real-time link quality evaluation information;
In this embodiment, this real-time link quality evaluation information be according to ITU-T Y.1731, two-way converting detects (BFD, Bidirectional Forwarding Detection) the link detecting agreement such as, first obtain the real-time detector data such as packet loss, time delay of link, the link-quality numerical value then calculating.When link-quality is higher, this link-quality numerical value is just less, and the implementation procedure that it is concrete, has been to know technology for this area, does not repeat them here.
Wherein, the described equipment uplink of described calculating history run quality evaluation information, comprising: the historical information of obtaining the Down event of described port and the duration of link down; According to described Down event and described historical information, evaluate, obtain described link-quality evaluation of estimate, and using described link-quality evaluation of estimate as link history run quality evaluation information.
This link history run quality evaluation information is to carry out link-quality evaluation according to the historical information of the duration of port Down event, link down.Such as, the every Down of port reduces 50 when once value corresponding to this information just increases 100(port UP), every interruption increases the every normal communication of 10(for 1 minute and reduces 10 in 1 hour).The implementation procedure that it is concrete, has been to know technology for this area, does not repeat them here.
3) calculate described static priority information, real-time link quality evaluation information and link history run quality evaluation information sum, obtain described port dynamic priority information.
Wherein, this port dynamic priority information is self-defining, so that described Selection Logic adopts " port dynamic priority " to carry out port selection as index, also can directly adopt " port static priority " to carry out port selection.Wherein, port dynamic priority is defined as follows:
Port dynamic priority information=port static priority information+real-time link quality evaluation information+link history run quality evaluation information.
S302: when link failure recovery, according to the port on described port dynamic priority Information Selection equipment, to carry out data retransmission.
In the embodiment of the present invention, under LACP link aggregation N:M backup instances, port priority, by dynamic-configuration, is dynamically adjusted according to link actual motion quality, thereby has guaranteed that the link-quality in selected state is the best.That is to say, the embodiment of the present invention embodies the dynamic of link-quality, and the assessment by link-quality is reflected on interface priority, thereby makes the always preferred link of those better quality of LACP, and badly select ropy link, thereby improve the quality of whole link aggregation.
Implementation procedure based on said method, the embodiment of the present invention also provides a kind of setting device of port status, its structural representation as shown in Figure 4, described device comprises: the first transmitting element 41, time delay timing unit 42, the first setting unit 43, the second setting units 44 and the second transmitting elements 45, wherein
Described the first transmitting element 41, for when the link failure recovery, sends the first Link Aggregation Control Protocol LACP message connecting to receiving terminal, a described LACP message comprises: delay selection information;
Wherein, the delay selection information in the described LACP message that described the first transmitting element 41 sends is for explanation, to postpone to choose the information of port.Described delay selection information can be added in the reservation Reserved field of a described LACP message.
Described time delay timing unit 42, for described while receiving the acknowledge message of the described LACP message of response that described receiving terminal sends, trigger timing; Specifically can carry out time delay timing by delay timer.
Described the first setting unit 43, for when the described time delay timing unit time delay timing, on described device, the state of the port of corresponding described link is set to stand-by state;
Described the second setting unit 44, when reaching default delay value in described time delay timing, if the port of corresponding described link is normal on described device, on described device, the state of the port of corresponding described link is set to selected state; That is to say, the state of the port of this link is adjusted into selected state from described stand-by state.
Described the second transmitting element 45, for send the 2nd LACP information that receives described acknowledge message to described receiving terminal, so that described receiving terminal is when receiving described the 2nd LACP information, on described device, the state of the port of corresponding described link is set to selected state.
Optionally, described device can also comprise: the 3rd setting unit, for sending after a described LACP message at described the first transmitting element, if do not receive the described acknowledge message of the described LACP message of response of receiving terminal transmission in Preset Time, on described device, the state of the port of corresponding described link is set to non-selected state.
Optionally, described device can be integrated in the network equipment, and such as router etc., or independent part is deployed in network.
In described device, the implementation procedure of the function and efficacy of unit refers to the implementation procedure of corresponding S in said method, does not repeat them here.
The embodiment of the present invention also provides a kind of setting device of port status, and as shown in Figure 5, described device comprises its structural representation: the first receiving element 51, the first transmitting element 52, the first setting unit 53, the second receiving elements 54 and the second setting units 55, wherein,
Described the first receiving element 51, for when the link failure recovery, the first Link Aggregation Control Protocol LACP message that receiving end/sending end sends, a described LACP message comprises: delay selection information;
Wherein, the described delay selection information in the described LACP message that described the first receiving element receives is for explanation, to postpone to choose the information of port.Described delay selection information can be added in the reservation Reserved field of a described LACP message.
Described the first transmitting element 52, for sending the acknowledge message of the described LACP message of response to described transmitting terminal;
Described the first setting unit 53, for when described the first transmitting element sends described acknowledge message, is set to stand-by state according to the state of the port of corresponding described link on the described device of described delay selection information;
Described the second receiving element 54, for receiving the 2nd LACP information of the described acknowledge message of response of described transmitting terminal transmission;
Described the second setting unit 55, for when described receiving element receives described the 2nd LACP information, on described device, the state of the port of corresponding described link is set to selected state.
Optionally, described device can be integrated in the network equipment, and such as router etc., or independent part is deployed in network.
In described device, the implementation procedure of the function and efficacy of unit refers to the implementation procedure of corresponding S in said method, does not repeat them here.
Accordingly, the embodiment of the present invention also provides a kind of choice device of port priority, and as shown in Figure 6, described device comprises its structural representation: determining unit 61 and selected cell 62, wherein,
Described determining unit 61, for determining the port dynamic priority information of equipment;
Described selected cell 62, for when the link failure recovery, according to the port on described port dynamic priority Information Selection equipment, to enter data forward state.
Optionally, described determining unit 61 comprises: the first acquiring unit 611, the first computing units 612 and the second computing unit 613, its structural representation as shown in Figure 7,
Described the first acquiring unit 611, for obtaining the static priority information of equipment upper port;
Described the first computing unit 612, for calculating real-time link quality evaluation information and link history run quality evaluation information on described equipment;
Described the second computing unit 613, for calculating described static priority information, real-time link quality evaluation information and link history run quality evaluation information sum, obtains described port dynamic priority information.
Optionally, described the first computing unit comprises: second acquisition unit, and the 3rd computing unit, the 3rd acquiring unit and evaluation unit, wherein, described second acquisition unit, for obtaining packet loss and the time delay of link; Described the 3rd computing unit, for calculating real-time packet loss and the time delay of described link, obtains described link-quality numerical value, and using described link-quality numerical value as real-time link quality evaluation information; Described the 3rd acquiring unit, for obtaining the historical information of the Down event of described port and the duration of link down; Described evaluation unit, for evaluating according to described Down event and described historical information, obtains described link-quality evaluation of estimate, and using described link-quality evaluation of estimate as link history run quality evaluation information.
Optionally, described device can be integrated in the network equipment, and such as router etc., or independent part is deployed in network.
In described device, the implementation procedure of the function and efficacy of unit refers to the implementation procedure of corresponding S in said method, does not repeat them here.
Based on above-described embodiment, the embodiment of the present invention also provides a kind of network equipment, and as shown in Figure 8, the described network equipment 8 comprises its structural representation: transceiver 81 and processor 82, wherein,
Described transceiver 81, for when the link failure recovery, sends the first Link Aggregation Control Protocol LACP message connecting to receiving terminal, a described LACP message comprises: delay selection information;
Described processor 82, for when receiving the acknowledge message of the described LACP message of response that described receiving terminal sends, trigger timing, and on the described network equipment, the state of the port of corresponding described link is set to stand-by state; And when the time of described time delay timing reaches default delay time, if the port of corresponding described link is normal on the described network equipment, on the described network equipment, the state of the port of corresponding described link is set to selected state;
Described transceiver 81, while being also set to selected state for the state of the port of corresponding described link on the described network equipment of described processor, to described receiving terminal, send the 2nd LACP information that receives described acknowledge message, so that described receiving terminal when receiving described the 2nd LACP information, arranges the state of the port of corresponding described link on described receiving terminal, it is selected state.
Optionally, the delay selection information in a LACP message of described transceiver transmission is used for illustrating the information that postpones to choose port.
Optionally, the delay selection information in a LACP message of described transceiver transmission is added in the reservation Reserved field of a described LACP message.
Optionally, described processor, also for sending at described transceiver after a described LACP message, if in Preset Time, when described transceiver does not receive the described acknowledge message of the described LACP message of response that receiving terminal sends, the state of the port of the described upper respective links of making a start is set to non-selected state.
In the described network equipment, the implementation procedure of the function and efficacy of transceiver and processor refers to the implementation procedure of corresponding S in said method, does not repeat them here.
The embodiment of the present invention also provides a kind of network equipment, and the described network equipment comprises: transceiver and processor, wherein,
Described transceiver, for when the link failure recovery, the first Link Aggregation Control Protocol LACP message that receiving end/sending end sends, a described LACP message comprises: delay selection information; And the acknowledge message that sends the described LACP message of response to described transmitting terminal;
Described processor, for when described transceiver sends the acknowledge message of the described LACP message of response to described transmitting terminal, the state that the port of respective links on the described network equipment is set according to described delay selection information is stand-by state;
Described transceiver, also for receiving the 2nd LACP information of the described acknowledge message of response of described transmitting terminal transmission;
Described processor, also for when described transceiver receives described the 2nd LACP information, the state that the port of described the above link of the network equipment is set is selected state.
Optionally, described transceiver receives delay selection information described in a described LACP message and is used for explanation and postpones to choose the information of port.Optionally, described delay selection information is added in the reservation Reserved field of a described LACP message.
In the described network equipment, the implementation procedure of the function and efficacy of transceiver and processor refers to the implementation procedure of corresponding S in said method, does not repeat them here.
The embodiment of the present invention also provides a kind of network equipment, and the described network equipment comprises: transceiver and processor, wherein,
Described processor, for determining the port dynamic priority information of equipment; And when link failure recovery, according to the port on described port dynamic priority Information Selection equipment;
Described transceiver, carries out data retransmission for the port on described processor selection equipment.
Optionally, determine the port dynamic priority information of equipment described in described processor, comprising: the static priority information of obtaining equipment upper port; Calculate real-time link quality evaluation information and link history run quality evaluation information on described equipment; Calculate described static priority information, real-time link quality evaluation information and link history run quality evaluation information sum, obtain described port dynamic priority information.
Wherein, described processor calculates real-time link quality evaluation information and link history run quality evaluation information on described equipment, comprise: packet loss and the time delay of obtaining link, calculate real-time packet loss and the time delay of described link, obtain described link-quality numerical value, and using described link-quality numerical value as real-time link quality evaluation information; Obtain the historical information of the Down event of described port and the duration of link down; According to described Down event and described historical information, evaluate, obtain described link-quality evaluation of estimate, and using described link-quality evaluation of estimate as link history run quality evaluation information.
In the described network equipment, the implementation procedure of the function and efficacy of transceiver and processor refers to the implementation procedure of corresponding S in said method, does not repeat them here.
It should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in some part of each embodiment of the present invention or embodiment.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (20)
1. a method to set up for port status, is characterized in that, comprising:
When link failure recovery, transmitting terminal sends the first Link Aggregation Control Protocol LACP message connecting to receiving terminal, and a described LACP message comprises: delay selection information;
Described transmitting terminal when receiving the acknowledge message of the described LACP message of response that described receiving terminal sends, trigger timing, and on described transmitting terminal, the state of the port of corresponding described link is set to stand-by state;
When the time of described time delay timing reaches default delay value, if the port of corresponding described link is normal on described transmitting terminal, on described transmitting terminal, the state of the port of corresponding described link is set to selected state, and to described receiving terminal, send the 2nd LACP information that receives described acknowledge message, so that described receiving terminal when receiving described the 2nd LACP information, arranges the state of the port of corresponding described link on described receiving terminal, it is selected state.
2. method according to claim 1, is characterized in that, described delay selection information is for illustrating the information that postpones to choose port.
3. method according to claim 1, is characterized in that, described delay selection information is added in the reservation Reserved field of a described LACP message.
4. according to the method described in claims 1 to 3 any one, it is characterized in that, also comprise:
After sending a described LACP message, if do not receive the acknowledge message of the described LACP message of response of receiving terminal transmission in Preset Time, on described transmitting terminal, the shape body of the port of respective links is set to non-selected state.
5. a method to set up for port status, is characterized in that, comprising:
When link failure recovery, the first Link Aggregation Control Protocol LACP message that receiving terminal receiving end/sending end sends, a described LACP message comprises: delay selection information;
Described receiving terminal sends the acknowledge message of the described LACP message of response to described transmitting terminal, and is stand-by state according to the state that described delay selection information arranges the port of respective links on described receiving terminal;
Described receiving terminal receives the 2nd LACP information of the described acknowledge message of response of described transmitting terminal transmission;
Described receiving terminal is when receiving described the 2nd LACP information, and the state that the port of respective links on described receiving terminal is set is selected state.
6. method according to claim 5, is characterized in that, described delay selection information is for illustrating the information that postpones to choose port.
7. according to the method described in claim 5 or 6, it is characterized in that, described delay selection information is added in the reservation Reserved field of a described LACP message.
8. a setting device for port status, is characterized in that, comprising:
The first transmitting element, for when the link failure recovery, sends the first Link Aggregation Control Protocol LACP message connecting to receiving terminal, a described LACP message comprises: delay selection information;
Time delay timing unit, for described while receiving the acknowledge message of the described LACP message of response that described receiving terminal sends, trigger timing;
The first setting unit, for when the described time delay timing unit time delay timing, the state of the port of described link is set to stand-by state;
The second setting unit, when reaching default delay value in described time delay timing, if the port of corresponding described link is normal on described device, on described device, the state of the port of corresponding described link is set to selected state;
The second transmitting element, for send the 2nd LACP information that receives described acknowledge message to described receiving terminal, so that described receiving terminal is when receiving described the 2nd LACP information, on described device, the state of the port of corresponding described link is set to selected state.
9. device according to claim 8, is characterized in that, the delay selection information in the described LACP message that described the first transmitting element sends is for illustrating the information that postpones to choose port.
10. device according to claim 8, is characterized in that, the described delay selection information that described the first transmitting element sends is added in the reservation Reserved field of a described LACP message.
Device described in 11. according to Claim 8 to 10 any one, is characterized in that, also comprises:
The 3rd setting unit, for sending after a described LACP message at described the first transmitting element, if do not receive the acknowledge message of the described LACP message of response of receiving terminal transmission in Preset Time, on described device, the state of the port of corresponding described link is set to non-selected state.
The setting device of 12. 1 kinds of port statuss, is characterized in that, comprising:
The first receiving element, for when the link failure recovery, the first Link Aggregation Control Protocol LACP message that receiving end/sending end sends, a described LACP message comprises: delay selection information;
The first transmitting element, for sending the acknowledge message of the described LACP message of response to described transmitting terminal;
The first setting unit, for when described the first transmitting element sends described acknowledge message, is set to stand-by state according to the state of the port of corresponding described link on the described device of described delay selection information;
The second receiving element, for receiving the 2nd LACP information of the described acknowledge message of response of described transmitting terminal transmission;
The second setting unit, for when described receiving element receives described the 2nd LACP information, on described device, the state of the port of corresponding described link is set to selected state.
13. devices according to claim 12, is characterized in that, the described delay selection information in the described LACP message that described the first receiving element receives is for illustrating the information that postpones to choose port.
14. according to the device described in claim 12 or 13, it is characterized in that, the described delay selection information that described the first receiving element receives is added in the reservation Reserved field of a described LACP message.
The system of selection of 15. 1 kinds of port prioritys, is characterized in that, comprising:
Determine the port dynamic priority information of equipment;
When link failure recovery, according to the port on described port dynamic priority Information Selection equipment, to carry out data retransmission.
16. methods according to claim 15, is characterized in that, the port dynamic priority information of described definite equipment, comprising:
Obtain the static priority information of equipment upper port;
Calculate real-time link quality evaluation information and link history run quality evaluation information on described equipment;
Calculate described static priority information, real-time link quality evaluation information and link history run quality evaluation information sum, obtain described port dynamic priority information.
17. methods according to claim 15, is characterized in that, real-time link quality evaluation information and link history run quality evaluation information on the described equipment of described calculating, comprising:
Obtain packet loss and the time delay of link, calculate real-time packet loss and the time delay of described link, obtain described link-quality numerical value, and using described link-quality numerical value as real-time link quality evaluation information;
Obtain the historical information of the Down event of described port and the duration of link down; According to described Down event and described historical information, evaluate, obtain described link-quality evaluation of estimate, and using described link-quality evaluation of estimate as link history run quality evaluation information.
The choice device of 18. 1 kinds of port prioritys, is characterized in that, comprising:
Determining unit, for determining the port dynamic priority information of equipment;
Selected cell, for when the link failure recovery, according to the port on described port dynamic priority Information Selection equipment, to carry out data retransmission.
19. devices according to claim 18, is characterized in that, described determining unit comprises:
The first acquiring unit, for obtaining the static priority information of equipment upper port;
The first computing unit, for calculating real-time link quality evaluation information and link history run quality evaluation information on described equipment;
The second computing unit, for calculating described static priority information, real-time link quality evaluation information and link history run quality evaluation information sum, obtains described port dynamic priority information.
20. devices according to claim 19, is characterized in that, described the first computing unit comprises:
Second acquisition unit, for obtaining packet loss and the time delay of link;
The 3rd computing unit, for calculating real-time packet loss and the time delay of described link, obtains described link-quality numerical value, and using described link-quality numerical value as real-time link quality evaluation information;
The 3rd acquiring unit, for obtaining the historical information of the Down event of described port and the duration of link down;
Evaluation unit, for evaluating according to described Down event and described historical information, obtains described link-quality evaluation of estimate, and using described link-quality evaluation of estimate as link history run quality evaluation information.
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