CN108965129A - A kind of implementation method of VPLS business multicast physical port iteration - Google Patents
A kind of implementation method of VPLS business multicast physical port iteration Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/16—Multipoint routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
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Abstract
A kind of implementation method of VPLS business multicast physical port iteration, it is related to VPLS business multicast field, comprising steps of carrying out void port VP operation in each multiprotocol label switching VPLS scope of business, when in first corresponding physical port of current slot position addition VP, it adds corresponding multicast member and counts, and in current slot position addition VP for the first time, adds corresponding multicast slot position and count；When current slot position deletes the last one corresponding physical port of VP, delete multicast member and simultaneously count, and the VP be current slot position the last one when, while deleting corresponding multicast slot position and counting；In addition to this, VP is added or deleted in the corresponding physical port of current slot position, and only multicast slot position and multicast member are counted.The present invention does not have to traverse all VP, can multicast slot position/or multicast member is added or be deleted, and improves software execution efficiency.
Description
Technical field
The present invention relates to VPLS business multicast field, in particular to a kind of VPLS business multicast physical port iteration
Implementation method.
Background technique
Virtual Private LAN Service is as a kind of two layers of dedicated network technology, due to technically simple, it is easy to accomplish the advantages that
And it is widely noticed.VPLS (Virtual Private Lan Service, Virtual Private LAN Service) effectively combines MPLS
(Multiprotocol Label Switching, multiprotocol label switching), VPN (Virtual Private Network, it is empty
Quasi- private network) and the characteristics of the multiple technologies such as Ethernet exchanging, realize the how point-to-multipoint local area network interconnection of wide scope, core
Heart technology includes controlling establishing and safeguarding, MAC (Media based on the pseudo-wire of tag distribution protocol or Border Gateway Protocol for plane
Access Control, Media Access Controlled) address learning, pseudo-wire encapsulation of transport plane etc..It is excellent based on its unique technology
Gesture, VPLS can provide big customer's two-layer VPN, the metropolitan area development of infrastructure network, the application of many levels such as personal distributed service.
Service provider is mentioned by being over the backbone the virtual switch of one multiple strange land website of connection of user's simulation for user
Serviced for VPLS, backbone network be for the website of user network it is transparent, each website of user network exists just as work
It is the same in one local area network.
In convergence device or access device, the VPLS business model of data plane is as shown in Figure 1, wherein UNI (User-
To-Network Interface, user network inferface) indicate that user accesses side, access uplink traffic from local user or
Downlink traffic from NNI (Network Node Interface, Network-Node Interface) side is linked into local user by person.
NNI indicates network side, and the uplink traffic of local user by NNI side ports enters backbone network or under coming from backbone network
Row flow introduces local convergence device or access device.The either side UNI or the side NNI, all correspond to VPLS business model
One VP (Virtual Port, empty port).VP is port concept (logic port) in logic, can be divided into active and standby VP, and
Active and standby VP can correspond to main interface, sub-interface or other logic ports.Other logic ports can be LAG (Link
Aggregation Group, aggregated links group) or ECMP (Equal-Cost MultiPath, equivalent route) port, LAG
Can by same slot position perhaps the physical port of different slots bits number not etc. forms and ECMP can be by same slot position or difference
Slot position physical port or LAG composition.That is, a VP can in fact correspond to multiple physical ports of multiple slot positions.
Because same slot position more than one physical port, same slot position can have different VP to occupy different physical ports.
One major function of VPLS business model is exactly to realize multicast, and multicast is divided into two-stage, multicasts to first required
Slot position, then multicast to the required physical port of required slot position.Before realizing multicast functionality, it is necessary first to be created in bottom layer driving module
Multicast group is built, and based on VP addition multicast slot position and multicast member.Since a VP can correspond to multiple physics of multiple slot positions
Port, and same slot position may exist different VP, it is therefore desirable to the corresponding slot position of VP and physical port are iterated, with
Flow can be multicast to all physical ports of the corresponding all slot positions of VP.When the corresponding physical port of VP has update,
Also iteration again is carried out to the corresponding physical port of VP, so that flux of multicast can also update the physical port of variation, i.e.,
It multicasts to newly-increased physical port or no longer multicasts to the physical port for being not belonging to the VP.
In traditional traversal, specific to some slot position, when adding VP, need first to traverse all VP in VPLS
All physical ports, judge whether this slot position has the physical port that some VP has, not then to driving add multicast slot position.
Next, it is judged that the physical port of whether existing VP of this slot position, there is no then add multicast member to driving.As deletion VP
When, this VP is first deleted in all physical ports i.e. multicast member of this slot position, then traverses the property of all VP in VPLS
Port is managed, judges whether this slot position also remains the physical port of certain VP, it is not surplus then to delete multicast slot position.When updating VP, if it is increasing
Some or the certain physical ports of VP is added then to carry out the operation of similar addition VP, if it is some or the certain physics ends for deleting VP
Mouthful, then it first has to judge the other physical ports whether this slot position also remains this VP, it is not surplus then first to delete this VP in the group of this slot position
Member is broadcast, all physical ports of all VP in VPLS are then traversed, the whether also surplus physical port of this slot position is judged, if not
It is surplus then delete multicast slot position.As it can be seen that either adding, deleting or updating, traversal requires all VP in traversal VPLS
All physical ports, and if the logic port of VP is LAG or ECMP or the two superposition, the series traversed also wanted
Increase.Therefore, for traversal when application layer (increases, deletes or update) VPLS multicast service to bottom layer driving operation, there are soft
The lower problem of part execution efficiency.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of VPLS business multicast physical ports
The implementation method of iteration does not have to traverse all VP, can multicast slot position/or multicast member is added or be deleted, improves soft
Part execution efficiency.
To achieve the above objectives, the present invention takes a kind of implementation method of VPLS business multicast physical port iteration, including
Step:
Void port VP operation is carried out in each multiprotocol label switching VPLS scope of business,
When current slot position adds first corresponding physical port of VP, adds corresponding multicast member and count, and
In current slot position addition VP for the first time, adds corresponding multicast slot position and count；
When current slot position deletes the last one corresponding physical port of VP, deletes multicast member and count, and the VP is
Current slot position the last one when, while deleting corresponding multicast slot position and counting；
In addition to this, add or delete VP in the corresponding physical port of current slot position, only to multicast slot position and multicast at
Member is counted.
On the basis of above scheme, the VP operation includes addition VP, deletes VP and update VP, and the update VP needs
Further judgement is addition VP or deletes VP；By calling driving interface to carry out the VP operation.
On the basis of above scheme, the method also includes: for each slot position, two class counters, each first kind are set
Counter corresponds to a VPLS scope of business, records the physical port number of the slot position all VP in a VPLS scope of business
Amount, for judging the addition or deletion of multicast slot position；The corresponding VP of each second class counter, records in the slot position one
VP corresponds to the quantity of physical port；For judging the addition or deletion of multicast member.
On the basis of above scheme, if the step of addition VP includes: first VP that the VP is current slot position,
And the VP does not have corresponding physical port in current slot position, then call driving interface add corresponding multicast slot position and multicast at
Member, adds 1 for the counting for recording the two class counters of the VP respectively.
On the basis of above scheme, if it is not first of current slot position that the step of addition VP, which includes: the VP,
VP, and the VP does not have corresponding physical port in current slot position, then calls driving interface to add corresponding multicast member, will record
The counting of the two class counters of the VP adds 1 respectively.
On the basis of above scheme, if the step of addition VP includes: the VP in the existing correspondence of current slot position
Physical port, the counting for recording the two class counters of the VP is added 1 respectively, never calls driving interface.
On the basis of above scheme, if it is described delete VP the step of include: the VP be current slot position the last one
VP, and the VP only has a corresponding physical port in current slot position, then call driving interface delete corresponding multicast slot position and
The counting for recording the two class counters of the VP is subtracted 1 respectively by multicast member.
On the basis of above scheme, if it is described delete VP the step of include: the VP be not current slot position last
A VP, and the VP only has a corresponding physical port in current slot position, then driving interface is called to delete corresponding multicast member,
Then the counting for recording the two class counters of the VP is subtracted 1 respectively.
On the basis of above scheme, if the step of deletion VP includes: the VP at the corresponding physics end of current slot position
Mouth quantity is more than one, subtracts 1 respectively for the counting for recording the two class counters of the VP, never calls driving interface.
On the basis of above scheme, the VPLS business receives the configuration of VP by control planar configuration, each slot position
Data, and the corresponding physical port of the VP is obtained according to configuration data.
The beneficial effects of the present invention are: according to the count value generated in VP operating process, to be confirmed whether to carry out multicast
Slot position adds or deletes, and confirms adding or deleting for multicast member, without going through the institute of entire VPLS business repeatedly
There is VP information about firms, improves the execution efficiency of software.
In addition, generate count value in VP operating process, even if the logic port of VP is LAG and/or ECMP, without time
Other VP in VPLS are gone through, processing mode is constant, therefore the present invention is adding VPLS multicast service to bottom layer driving in application layer
When, the execution efficiency of software can be improved.
Detailed description of the invention
Fig. 1 is VPLS business model schematic diagram；
Fig. 2 is the specific flow chart that seventh embodiment of the invention updates VP.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Since VP is port concept (logic port) in logic, active and standby VP can be divided into, and active and standby VP can be corresponded to
Main interface, sub-interface or other logic ports.Main interface corresponds to a true port (i.e. physical port), and sub-interface is
Logic port is substantially a part of a physical port.Since main interface, sub-interface all only correspond to a physical port, because
Physical port is referred to as in this present invention in order to facilitate statement.That is, (including background technique) is occurred in the present invention
Physical port refer to one kind of both main interface or sub-interface.
The implementation method of VPLS business multicast physical port iteration of the present invention, comprising steps of
Two layers of VPLS business are configured on the control plane, and data plane is in bottom layer driving module creation multicast group, each
VP operation is carried out in the VPLS scope of business.Wherein, VP operation includes addition VP, deletes VP and update VP；When updating VP, need
Further judgement is addition VP or deletes VP, is then carried out according to corresponding process.Application layer is by calling driving interface to carry out
VP operation.
Specifically, adding corresponding multicast member when current slot position adds first corresponding physical port of VP and counting
Number, and in current slot position addition VP for the first time, it adds corresponding multicast slot position and counts.
When current slot position deletes the last one corresponding physical port of VP, deletes multicast member and count, and the VP is
Current slot position the last one when, while deleting corresponding multicast slot position and counting.
In addition to this, add or delete VP in the corresponding physical port of current slot position, only to multicast slot position and multicast at
Member is counted, and is never called driving interface and is carried out VP operation.
First embodiment
On the basis of the above-described procedure, two class counters, respectively first kind counter and the second class are set for each slot position
Counter, the corresponding VPLS scope of business of each first kind counter, the corresponding VP of each second class counter, therefore,
The port number of a VP in each slot position can all be counted by two counters, and the two counters are belonging respectively to first
Class counter and the second class counter.
The physical port quantity of all VP, is used in each first kind counter records one VPLS scope of business of the slot position
Judge the addition or deletion of multicast slot position.Each second class counter, which is used to record a VP in the slot position, corresponds to physical port
Quantity, for judging the addition or deletion of multicast member.
In the present embodiment, by taking a slot position of data plane as an example, the step of adding VP includes: that current slot position receives VP
Configuration data judged according to the counting of two class counters of the slot position, i.e. a first kind counter and second class
The counting of counter is judged.If the counting of first kind counter is 0, illustrate that current slot position does not have the corresponding physics end VP
Mouthful, it also means that, which is first VP of current slot position, needs to add.At this point, in one VPLS scope of business of current slot position
It is interior without being the quantity that no VP corresponds to physical port in the slot position, then second in the case where the corresponding physical port of VP
The counting of class counter is also 0.
In the case that the technology of two class counters is all 0, application layer calls driving interface, adds the corresponding multicast of the VP
Slot position and multicast member, and the counting of two class counters is added 1 respectively.
Second embodiment
Be similarly each slot position and two class counters be set, the number of every class counter is 1, the effect of every class counter with
It is acted in first embodiment identical.
The step of VP is added in the present embodiment, is with the difference of first embodiment: if the corresponding first kind meter of the VP
The counting of number devices is not 0, not only one physical port in one VPLS scope of business of the slot position, does not need to add the VP corresponding
Multicast slot position.
At this point, illustrating that the VP is not corresponding in current slot position if the counting of corresponding two counter of class of the VP is 0
Physical port.In this case, application layer calls driving interface, the corresponding multicast member of the VP is added, then by this VP pairs
The counting of the first kind counter and two class counters answered adds 1 respectively.
3rd embodiment
It is similarly each slot position in the present embodiment, two class counters are set, the number of every class counter is 1, and every class counts
It is acted in the effect and first embodiment of device identical.
The step of VP is added in the present embodiment, the difference with first embodiment is:
If the counting of the corresponding first kind counter of the VP is not 0, the counting of the second class counter is also not 0, explanation
The VP does not both need the corresponding multicast slot position of addition VP, does not need to add yet in the existing corresponding physical port of current slot position
The corresponding multicast member of VP.In such cases, the counting of the corresponding first kind counter of the VP and two class counters is added respectively
1, application layer never calls driving interface and carries out VP operation.
Fourth embodiment
It is similarly each slot position in the present embodiment, two class counters are set, the number of every class counter is 1, and every class counts
It is acted in the effect and first embodiment of device identical.
In the present embodiment, by taking a slot position of data plane as an example, delete VP the step of include:
Current slot position receives the configuration data of VP, is judged according to the counting of two class counters of the slot position.If should
The counting of the corresponding first kind counter of VP is 1, the physical port of only one VP in one VPLS scope of business of the slot position, that
The last one VP that the VP is current slot position can be released.
The counting of the corresponding second class counter of the VP should be also 1 at this time, illustrate that the VP only has one in current slot position
Corresponding physical port.In this case, application layer calls driving interface, deletes corresponding multicast slot position and multicast member, will
The counting of the corresponding two classes counter of the VP subtracts 1 respectively.
5th embodiment
It is similarly each slot position in the present embodiment, two class counters are set, the number of every class counter is 1, and every class counts
It is acted in the effect and first embodiment of device identical.
The step of VP is deleted in the present embodiment, is with the difference of fourth embodiment: if the corresponding first kind meter of the VP
The counting of number device is greater than 1, illustrates not only only have a physical port in one VPLS scope of business of the slot position, if the VP is corresponding
The second class counter be counted as 1, illustrate that the VP only has a corresponding physical port in current slot position.In this case,
Application layer calls driving interface, deletes corresponding multicast member, then the counting of first kind counter and the second class counter point
Not subtract 1.
Sixth embodiment
It is similarly each slot position in the present embodiment, two class counters are set, the number of every class counter is 1, and every class counts
It is acted in the effect and first embodiment of device identical.
The step of VP is deleted in the present embodiment, is with the difference of fourth embodiment: if the corresponding first kind meter of the VP
Number devices counting be greater than 1, the counting of the second class counter also greater than 1, illustrate the VP current slot position not only have one it is corresponding
Physical port.In this case, the counting of the corresponding two classes counter of the VP is subtracted 1 respectively, application layer is never called driving and connect
Mouth carries out VP operation.
7th embodiment
On the basis of the above embodiments, as shown in Fig. 2, the detailed process for updating VP includes following step in the present embodiment
It is rapid:
S101. current slot position receives the configuration data for updating VP.
It S102. is addition VP or deletion VP according to configuration data judgement, if addition VP, into S103；If deleting
VP, into 108.
Whether the counting for S103. judging the corresponding first kind counter of the VP is 0, if so, into S104, if it is not,
Into S105.
S104. the counting of the corresponding second class counter of the VP is necessarily 0 at this time, adds the corresponding multicast slot of the VP
Position and multicast member, and the counting of the corresponding two classes counter of the VP is added 1 respectively, terminate.
Whether the counting for S105. judging the corresponding second class counter of the VP is 0, if so, into S106；If it is not,
Into S107.
S106. the corresponding multicast member of the VP is added, corresponding two class of the VP counts adds 1 respectively, terminates.
S107. the counting of the corresponding two classes counter of the VP is added 1 respectively, application layer never calls driving interface and carries out VP behaviour
Make, terminates.
S108. judge that the counting of corresponding first counter of the VP is greater than 1 and is also equal to 1, if more than 1, enter
S110；If being equal to 1, into S109.
S109. the corresponding second class counter of the VP should be also equal to 1 at this time, and application layer calls driving interface, deletion pair
The counting of the corresponding two classes counter of the VP is subtracted 1 respectively by the multicast slot position and multicast member answered, and is terminated.
S110. judge that the counting of the corresponding second class counter of the VP is greater than 1 and is also equal to 1, if more than 1, enter
S111；If being equal to 1, into S112.
S111. the counting of the corresponding two classes counter of the VP is subtracted 1 respectively, application layer never calls driving interface and carries out VP behaviour
Make.
S112. application layer calls driving interface, corresponding multicast member is deleted, by the meter of the corresponding two classes counter of the VP
Number subtracts 1 respectively, terminates.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of implementation method of VPLS business multicast physical port iteration, which is characterized in that comprising steps of
Void port VP operation is carried out in each multiprotocol label switching VPLS scope of business,
When current slot position adds first corresponding physical port of VP, adds corresponding multicast member and count, and working as
When preceding slot position adds VP for the first time, adds corresponding multicast slot position and count；
When current slot position deletes the last one corresponding physical port of VP, deletes multicast member and count, and the VP is current
Slot position the last one when, while deleting corresponding multicast slot position and counting；
In addition to this, add or delete VP in the corresponding physical port of current slot position, only to multicast slot position and multicast member into
Row counts.
2. the implementation method of VPLS business multicast physical port iteration as described in claim 1, it is characterised in that: the VP behaviour
Make to include addition VP, deletion VP and update VP, it is to add VP or deletion VP that the update VP, which needs further judgement,；Pass through tune
The VP operation is carried out with driving interface.
3. the implementation method of VPLS business multicast physical port iteration as claimed in claim 2, which is characterized in that the method
Further include: for each slot position, two class counters are set,
The corresponding VPLS scope of business of each first kind counter, records the slot position all VP in a VPLS scope of business
Physical port quantity, for judging the addition or deletion of multicast slot position；
The corresponding VP of each second class counter, records the quantity that a VP in the slot position corresponds to physical port；For judging
The addition or deletion of multicast member.
4. the implementation method of VPLS business multicast physical port iteration as claimed in claim 3, which is characterized in that the addition
If the step of VP includes: first VP that the VP is current slot position, and the VP does not have corresponding physical port in current slot position,
It then calls driving interface to add corresponding multicast slot position and multicast member, the counting for recording the two class counters of the VP is added respectively
1。
5. the implementation method of VPLS business multicast physical port iteration as claimed in claim 3, which is characterized in that the addition
If the step of VP includes: first VP that the VP is not current slot position, and the VP does not have corresponding physics end in current slot position
Mouthful, then it calls driving interface to add corresponding multicast member, the counting for recording the two class counters of the VP is added 1 respectively.
6. the implementation method of VPLS business multicast physical port iteration as claimed in claim 3, which is characterized in that the addition
If the step of VP includes: the VP in the existing corresponding physical port of current slot position, the two class counters of the VP will be recorded
It counts and adds 1 respectively, never call driving interface.
7. the implementation method of VPLS business multicast physical port iteration as claimed in claim 3, which is characterized in that the deletion
If the step of VP includes: the last one VP that the VP is current slot position, and the VP only has a corresponding object in current slot position
Port is managed, then calls driving interface to delete corresponding multicast slot position and multicast member, the meter of the two class counters of the VP will be recorded
Number subtracts 1 respectively.
8. the implementation method of VPLS business multicast physical port iteration as claimed in claim 3, which is characterized in that the deletion
If the step of VP includes: the last one VP that the VP is not current slot position, and the VP current slot position only have one it is corresponding
Physical port then calls driving interface to delete corresponding multicast member, then will record the counting point of the two class counters of the VP
Not subtract 1.
9. the implementation method of VPLS business multicast physical port iteration as claimed in claim 3, which is characterized in that the deletion
If the step of VP includes: the VP more than one in the corresponding physical port quantity of current slot position, two classes for recording the VP are counted
The counting of device subtracts 1 respectively, never calls driving interface.
10. the implementation method of VPLS business multicast physical port iteration as described in claim 1, it is characterised in that: described
For VPLS business by control planar configuration, each slot position receives the configuration data of VP, and obtains the VP according to configuration data and correspond to
Physical port.
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