CN102104546A - Synchronization method and system of forwarding table - Google Patents
Synchronization method and system of forwarding table Download PDFInfo
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- CN102104546A CN102104546A CN2011100435495A CN201110043549A CN102104546A CN 102104546 A CN102104546 A CN 102104546A CN 2011100435495 A CN2011100435495 A CN 2011100435495A CN 201110043549 A CN201110043549 A CN 201110043549A CN 102104546 A CN102104546 A CN 102104546A
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Abstract
The invention relates to a synchronization method and system of a forwarding table. The synchronization method comprises the following steps of: compiling a synchronous message through using a markup language by a synchronous initiating terminal during synchronization, and then sending the synchronous message to a synchronous receiving terminal, wherein in the synchronous message, each label corresponds to a field in the forwarding table to be synchronized, and each label value is equal to a reading value of the field corresponding to the label; and resolving the received synchronous message by the synchronous receiving terminal, only synchronizing the values of the labels corresponding to the fields included in a local forwarding table to a local terminal in allusion to each resolved label. By virtue of the synchronous method and system, the expandability, the synchronous success rate, the flexibility and the compatibility of the forwarding table are improved, the redundancy of a code is reduced, the quantity of fault items generated due to unsuccessful synchronization on the forwarding table is reduced, and the speed of version upgrading is increased.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method for synchronous of transmitting and system.
Background technology
Generally include master control and ply-yarn drill in the switch.Master control is meant the core component of functions such as the exchange, control, monitoring, clock, management of burden system, and minimum configuration is 1 on each switch, disposes 2 master controls at most.When two master controls of configuration, these two master controls can active and standbyly with 1+1 be worked with the mode 1:1 load sharing.Ply-yarn drill is parts of being responsible for the most basic forwarding capability, can provide different photoelectricity, speed combination according to the difference of type.Transmitting is needed table when two layers/three-tier message is transmitted in the realization switch, comprise: MAC(Medium Access Control, media access control layer) table, main frame routing table, come in and go out port table, subnet routing table, three layer interface tables and equal-cost route next skip list etc., these tables are referred to as to be transmitted.
At present, in switch, transmit between each ply-yarn drill and the master control synchronously, employing be the method for transmitting structure synchronously, this method requires between each ply-yarn drill and ply-yarn drill must be consistent with the structure of transmitting between the master control.If the structure of transmitting of a certain end changes, then can cause the opposite end when information is transmitted in parsing, to be made mistakes, thereby cause synchronization failure.For example, three layer interface list structure bodies on a certain ply-yarn drill have increased a field RackNo newly, be used to represent the shelf number under this three layer interface, but not corresponding this field that increases in the master control, so at this moment, when the synchronous three layer interface tables of this ply-yarn drill were given master control, the information of coming synchronously can't be correctly resolved in master control, reason be ply-yarn drill and master control to transmit the shared memory size of structure inconsistent.
This shows that it is not strong to have method autgmentability, flexibility and the compatibility of transmitting structure synchronously now.
In addition, other adopt and to transmit the structure mode synchronously and carry out the equipment of data sync and also have the problems referred to above.
Summary of the invention
The purpose of this invention is to provide a kind of synchronous method and system of transmitting, to transmit structure different and transmit synchronous unsuccessful problem between the synchronous both sides that bring to solve synchronous both sides.
For addressing the above problem, the invention provides a kind of method for synchronous of transmitting, comprising:
Carrying out when synchronous, originating end usage flag language compilation synchronization message sends to synchronous receiving terminal with this synchronization message then synchronously; Wherein, in this synchronization message, each label is corresponding with a field in treating synchronous transmitting, and the value of each label equals the value of the field corresponding with this label;
Described synchronous receiving terminal is resolved the described synchronization message that receives, and for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality.
Further, described method also comprises:
Described synchronous receiving terminal is transmitted this locality in advance and is resolved, and the identification information of each field that will parse is preserved as the label of this field correspondence;
Described for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality, specifically comprises:
For each label that parses, described synchronous receiving terminal is preserved this label as judging this locality, and then the value of this label that will parse is synchronized to this locality; Otherwise, the value of the asynchronous label that this parses.
Further, described method also comprises:
When described synchronous originating end or synchronously in the receiving terminal in the transmitting of arbitrary equipment during a newly-increased field, this equipment is preserved the identification information of this field as the label of this field correspondence;
When described synchronous originating end or when synchronously a field is deleted in the transmitting of arbitrary equipment in the receiving terminal, this equipment is with the label deletion of this field correspondence.
Further, the identification information of described field is the field name of this field.
Correspondingly, the present invention also provides a kind of synchro system of transmitting, and comprising:
Synchronous originating end is used for carrying out when synchronous, and usage flag language compilation synchronization message sends to synchronous receiving terminal with this synchronization message then; Wherein, in this synchronization message, each label is corresponding with a field in treating synchronous transmitting, and the value of each label equals the value of the field corresponding with this label;
Described synchronous receiving terminal is used for the described synchronization message that receives is resolved, and for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality.
Further,
Described synchronous receiving terminal also is used in advance this locality being transmitted resolving, and the identification information of each field that will parse is preserved as the label of this field correspondence;
Described synchronous receiving terminal is used for for each label that parses, and the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality, specifically comprises:
Described synchronous receiving terminal is used for for each label that parses, as judges this locality and preserve this label, and then the value of this label that will parse is synchronized to this locality; Otherwise, the value of the asynchronous label that this parses.
Further,
Described synchronous originating end or synchronous receiving terminal are used for when transmitting of this equipment increases a field newly the identification information of this field being preserved as the label of this field correspondence; Also be used for this equipment transmit a field when deleted, with the label deletion of this field correspondence.
Further,
The identification information of described field is the field name of this field.
After adopting the present invention, improve the extensibility of transmitting, synchronous success rate, flexibility, compatibility, reduced code redundancy, reduced and transmitted the unsuccessful synchronously fault odd number that produces, promoted edition upgrading speed.
Description of drawings
The method for synchronous flow chart of Fig. 1 for transmitting in the embodiment of the invention;
Fig. 2 transmits synchronous schematic diagram for the present invention uses in the example between the master control and each ply-yarn drill;
The method for synchronous flow chart that Fig. 3 transmits in the example for the present invention uses.
Embodiment
Hereinafter will be elaborated to embodiments of the invention in conjunction with the accompanying drawings.Need to prove that under the situation of not conflicting, embodiment among the application and the feature among the embodiment be combination in any mutually.
In one embodiment of this invention, a kind of method for synchronous of transmitting, as shown in Figure 1, this method comprises:
Step 10, carrying out when synchronous, originating end usage flag language compilation synchronization message sends to synchronous receiving terminal with this synchronization message then synchronously; Wherein, in this synchronization message, each label is corresponding with a field in treating synchronous transmitting, and the value of each label equals the value of the field corresponding with this label;
Wherein, the identification information of field can adopt the field name of field, also can adopt to carry out synchronous two ends as offered other good any information are represented.SGML can adopt XML(Extensible Markup Language, extend markup language) or other SGMLs, also can adopt user-defined SGML.
Step 20, synchronous receiving terminal are resolved the above-mentioned synchronization message that receives, and for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality.
When specific implementation, synchronously originating end can be any one in mainboard and the ply-yarn drill in the switch.When synchronous originating end was mainboard, synchronously receiving terminal can be any one or the combination in any in all ply-yarn drills in this switch.When synchronous originating end was ply-yarn drill, receiving terminal was the mainboard in this switch synchronously; After mainboard is finished synchronously, can initiate synchronous flow process as synchronous originating end other ply-yarn drills in this switch by mainboard.
In another embodiment of the present invention, receiving terminal can be transmitted this locality in advance and resolve synchronously, and the identification information of each field that will parse is preserved as the label of this field correspondence.In step 20, after synchronous receiving terminal is resolved the synchronization message that receives,, as judge this locality and preserve this label for each label that parses, then the value of this label that will parse is synchronized to local terminal; Otherwise, the value of the asynchronous label that this parses.
After adopting said method, synchronous both sides just can not change and synchronization failure because of transmitting structure.
When synchronous originating end or synchronously in the receiving terminal in the transmitting on arbitrary equipment during a newly-increased field, this equipment can be preserved the identification information of this field as the label of this field correspondence; When synchronous originating end or when synchronously a field is deleted in the transmitting on arbitrary equipment in the receiving terminal, this equipment is with the label deletion of this field correspondence.
In the present embodiment, a kind of synchro system of transmitting comprises:
Synchronous originating end is used for carrying out when synchronous, and usage flag language compilation synchronization message sends to synchronous receiving terminal with this synchronization message then; Wherein, in this synchronization message, each label is corresponding with a field in treating synchronous transmitting, and the value of each label equals the value of the field corresponding with this label;
Described synchronous receiving terminal is used for the described synchronization message that receives is resolved, and for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality.
Preferably,
Described synchronous receiving terminal also is used in advance this locality being transmitted resolving, and the identification information of each field that will parse is preserved as the label of this field correspondence;
Described synchronous receiving terminal is used for for each label that parses, and the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality, specifically comprises:
Described synchronous receiving terminal is used for for each label that parses, as judges this locality and preserve this label, and then the value of this label that will parse is synchronized to this locality; Otherwise, the value of the asynchronous label that this parses.
Preferably,
Described synchronous originating end or synchronous receiving terminal are used for when transmitting of this equipment increases a field newly the identification information of this field being preserved as the label of this field correspondence; Also be used for this equipment transmit a field when deleted, with the label deletion of this field correspondence.
Preferably,
The identification information of described field is the field name of this field.
Adopt an application example that the present invention is further specified below.
In this example, a certain switch chassis is provided with master control, ply-yarn drill 1 and ply-yarn drill 2, master control and the equal operate as normal of each ply-yarn drill.Increase a function point on ply-yarn drill 1: source mac filters, and can increase a field SrcMac by the mac list structure body on ply-yarn drill 1 and realize.Reduce by a function point at ply-yarn drill 2: three layer interface tables no longer comprise frame information, can realize by deletion field RackNo in the three layer interface list structure bodies on ply-yarn drill 2.
Be that example describes below with XML.XML has following advantage: the one, but user-defined format; The 2nd, can expand; The 3rd, possess cross-platform ability, can accept for systems such as UNIX, LINUX.
As shown in Figure 2, overtime at synchro timer, ply-yarn drill 1, ply-yarn drill 2 resolve respectively separately transmit and generate synchronization message, then synchronization message is sent to master control; Master control also can be overtime at its synchro timer, and that resolves this equipment transmits and generate synchronization message, then this synchronization message is sent to all ply-yarn drills.
Relevant information be resolved and be preserved to ply-yarn drill 1, ply-yarn drill 2 or master control can to the synchronization message of receiving when receiving synchronization message.
As shown in Figure 3, transmit method for synchronous, comprising:
The first step:, in the tag library of ply-yarn drill 1, increase the SrcMac label, and in the XML adaptable interface, add parsing to SrcMac for ply-yarn drill 1;
Second step:, in the tag library of ply-yarn drill 2, delete the RackNo label, and in the XML adaptable interface, delete parsing to RackNo for ply-yarn drill 2;
The 3rd step: for master control, in the tag library of master control, add the SrcMac label, deletion RackNo label, and in the XML adaptable interface, increase parsing to SrcMac, deletion is to the parsing of RackNo;
The 4th step: ply-yarn drill 1 is initiated synchronously to master control.Overtime when synchro timer, ply-yarn drill 1 beginning sends synchronization message to master control.After synchronization message is received in master control, call its XML adaptable interface,, resolve the synchronization message that ply-yarn drill 1 is come synchronously, and preserve the data after resolving according to the label in the tag library;
The 5th step: ply-yarn drill 2 is initiated synchronously to master control.Overtime when synchro timer, ply-yarn drill 2 beginnings send synchronization message to master control.After master control receives synchronization message, call its XML adaptable interface and resolve the synchronization message that ply-yarn drill 2 is come synchronously, and preserve the data after resolving;
The 6th step: master control is initiated synchronously to all ply-yarn drills.Overtime when synchro timer, master control begins to send out synchronization message to all ply-yarn drills.After ply-yarn drill 1 and ply-yarn drill 2 receive synchronization message, call XML adaptable interface separately,, resolve the synchronization message that master control is come synchronously, and preserve the data after resolving according to tag library separately.
In fourth, fifth, six steps, the data after described preservation is resolved are meant: for each label that carries in the synchronization message, judge whether preserve this label in the local label storehouse; If have, resolve this label, the value of this label is synchronized to the respective field that transmit this locality; If do not have, do not carry out the parsing of this label.Therefore transmit structure when inconsistent as synchronous both sides, also can not influence the accurate synchronization of transmitting.
Though in second step, ply-yarn drill 2 has been deleted field RackNo, ply-yarn drill 1 need not to delete field RackNo, and corresponding, ply-yarn drill 1 has increased field SrcMac in the first step, but need not to increase field SrcMac at ply-yarn drill 2.Guarantee the independence of structure between the ply-yarn drill like this, improved the compatibility of transmitting, reduced code redundancy.Transmitting in ply-yarn drill and the master control can be rewritten arbitrarily by the user, improved extensibility, the flexibility of transmitting, and reduced and transmitted the unsuccessful synchronously number of faults that produces, and improved synchronous success rate, promoted edition upgrading speed.
One of ordinary skill in the art will appreciate that all or part of step in the said method can instruct related hardware to finish by program, described program can be stored in the computer-readable recording medium, as read-only memory, disk or CD etc.Alternatively, all or part of step of the foregoing description also can use one or more integrated circuits to realize.Correspondingly, each the module/unit in the foregoing description can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above is the preferred embodiments of the present invention only, is not to be used to limit protection scope of the present invention.According to summary of the invention of the present invention; also other various embodiments can be arranged; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making various corresponding changes and distortion according to the present invention; within the spirit and principles in the present invention all; any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. method for synchronous of transmitting comprises:
Carrying out when synchronous, originating end usage flag language compilation synchronization message sends to synchronous receiving terminal with this synchronization message then synchronously; Wherein, in this synchronization message, each label is corresponding with a field in treating synchronous transmitting, and the value of each label equals the value of the field corresponding with this label;
Described synchronous receiving terminal is resolved the described synchronization message that receives, and for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality.
2. the method for claim 1 is characterized in that, described method also comprises:
Described synchronous receiving terminal is transmitted this locality in advance and is resolved, and the identification information of each field that will parse is preserved as the label of this field correspondence;
Described for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality, specifically comprises:
For each label that parses, described synchronous receiving terminal is preserved this label as judging this locality, and then the value of this label that will parse is synchronized to this locality; Otherwise, the value of the asynchronous label that this parses.
3. method as claimed in claim 2 is characterized in that, described method also comprises:
When described synchronous originating end or synchronously in the receiving terminal in the transmitting of arbitrary equipment during a newly-increased field, this equipment is preserved the identification information of this field as the label of this field correspondence;
When described synchronous originating end or when synchronously a field is deleted in the transmitting of arbitrary equipment in the receiving terminal, this equipment is with the label deletion of this field correspondence.
4. as any described method in the claim 1 ~ 3, it is characterized in that:
The identification information of described field is the field name of this field.
5. synchro system of transmitting comprises:
Synchronous originating end is used for carrying out when synchronous, and usage flag language compilation synchronization message sends to synchronous receiving terminal with this synchronization message then; Wherein, in this synchronization message, each label is corresponding with a field in treating synchronous transmitting, and the value of each label equals the value of the field corresponding with this label;
Described synchronous receiving terminal is used for the described synchronization message that receives is resolved, and for each label that parses, the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality.
6. system as claimed in claim 5 is characterized in that:
Described synchronous receiving terminal also is used in advance this locality being transmitted resolving, and the identification information of each field that will parse is preserved as the label of this field correspondence;
Described synchronous receiving terminal is used for for each label that parses, and the value of the label of the field correspondence that comprises in only this locality being transmitted is synchronized to this locality, specifically comprises:
Described synchronous receiving terminal is used for for each label that parses, as judges this locality and preserve this label, and then the value of this label that will parse is synchronized to this locality; Otherwise, the value of the asynchronous label that this parses.
7. system as claimed in claim 6 is characterized in that:
Described synchronous originating end or synchronous receiving terminal are used for when transmitting of this equipment increases a field newly the identification information of this field being preserved as the label of this field correspondence; Also be used for this equipment transmit a field when deleted, with the label deletion of this field correspondence.
8. as any described system in the claim 5 ~ 7, it is characterized in that:
The identification information of described field is the field name of this field.
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| CN201110043549.5A CN102104546B (en) | 2011-02-23 | 2011-02-23 | Synchronization method and system of forwarding table |
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| CN104052586A (en) * | 2013-03-14 | 2014-09-17 | 中兴通讯股份有限公司 | Method for realizing quick list synchronization between line cards and device thereof |
| TWI497951B (en) * | 2013-05-10 | 2015-08-21 | Univ Nat Cheng Kung | A communication system and information forwarding method thereof |
| WO2021004265A1 (en) * | 2019-07-08 | 2021-01-14 | 中兴通讯股份有限公司 | Microcode upgrade method and apparatus |
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| WO2021004265A1 (en) * | 2019-07-08 | 2021-01-14 | 中兴通讯股份有限公司 | Microcode upgrade method and apparatus |
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| CN102104546B (en) | 2015-06-10 |
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