CN108234358A - A kind of multicast message transmission method, device and machine readable storage medium - Google Patents
A kind of multicast message transmission method, device and machine readable storage medium Download PDFInfo
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- CN108234358A CN108234358A CN201711471523.4A CN201711471523A CN108234358A CN 108234358 A CN108234358 A CN 108234358A CN 201711471523 A CN201711471523 A CN 201711471523A CN 108234358 A CN108234358 A CN 108234358A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/80—Actions related to the user profile or the type of traffic
- H04L47/806—Broadcast or multicast traffic
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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
- H04L45/22—Alternate 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
- H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
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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
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
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Abstract
The disclosure provides a kind of multicast message transmission method, device and machine readable storage medium, this method and includes：Igmp querying message is sent to the convergence-level equipment being connect with standby BRAS, so that the convergence-level equipment sends IGMP report messages according to the igmp querying message to the standby BRAS；After IGMP report messages are received, multicast list is established according to the IGMP report messages；If main BRAS does not break down, refusal passes through the multicast list forwarding multicasting message；If main BRAS breaks down, pass through the multicast list forwarding multicasting message.By the technical solution of the disclosure, after main BRAS failures, standby BRAS does not have to re-establish multicast list, can direct forwarding multicasting message, avoid the Transmission of multicast message, improve user's impression, multicast service can fast quick-recovery after active-standby switch.
Description
Technical field
This disclosure relates to field of communication technology, it can more particularly, to a kind of multicast message transmission method, device and machine
Read storage medium.
Background technology
BRAS (Broadband Remote Access Server, Broadband Remote Access Server) is towards broadband network
The access gateway of application, positioned at the marginal layer of backbone network, it is main complete network carrying function and control realize function (such as certification,
Charging and management).In order to improve the reliability of BRAS, generally use dual-host backup network disposes two BRAS, a BRAS
For main BRAS, another BRAS is standby BRAS.
Invention content
The disclosure provides a kind of multicast message transmission method, applied to BRAS, the method includes：
When the BRAS is standby BRAS, igmp querying message is sent to the convergence-level equipment being connect with the standby BRAS,
So that the convergence-level equipment sends IGMP report messages according to the igmp querying message to the standby BRAS；
After IGMP report messages are received, multicast list is established according to the IGMP report messages；
If main BRAS does not break down, refusal passes through the multicast list forwarding multicasting message；
If main BRAS breaks down, pass through the multicast list forwarding multicasting message.
The disclosure provides a kind of multicast message transmitting device, and applied to BRAS, described device includes：Sending module, foundation
Module, processing module, when the BRAS is standby BRAS：
The sending module, for sending igmp querying message to the convergence-level equipment being connect with standby BRAS, so that convergence
Layer equipment sends IGMP report messages according to the igmp querying message to standby BRAS；
It is described to establish module, for after IGMP report messages are received, multicast to be established according to the IGMP report messages
List item；
The processing module, for when main BRAS does not break down, then refusal to pass through the multicast list forwarding multicasting
Message；When main BRAS breaks down, then pass through the multicast list forwarding multicasting message.
The disclosure provides a kind of electronic equipment, including：Processor and machine readable storage medium, the machine readable storage
Media storage has the machine-executable instruction that can be performed by the processor；The processor can be held for performing the machine
Row instruction, to realize above-mentioned method and step.
The disclosure provides a kind of machine readable storage medium, and the machine readable storage medium is stored with machine and can perform finger
It enables, for the machine-executable instruction when being called and being performed by processor, the machine-executable instruction promotes the processor
Realize above-mentioned method and step.
Based on above-mentioned technical proposal, in the embodiment of the present disclosure, standby BRAS pre-establishes multicast list, if main BRAS does not occur
Failure is then refused through multicast list forwarding multicasting message, and main BRAS and standby BRAS is avoided to send multicast message, leads to host
Receive two parts of identical multicast messages.If main BRAS breaks down, by multicast list forwarding multicasting message, due to master
Multicast list is established before BRAS failures, therefore after main BRAS failures, it, can direct forwarding group without re-establishing multicast list
Text is reported, avoids the Transmission of multicast message, improves user's impression, multicast service can fast quick-recovery after active-standby switch.
Description of the drawings
It, below will be to the disclosure in order to clearly illustrate the embodiment of the present disclosure or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is only some embodiments described in the disclosure, for those of ordinary skill in the art, can also be according to this Shen
Please these attached drawings of embodiment obtain other attached drawings.
Fig. 1 is the application scenarios schematic diagram in a kind of embodiment of the disclosure；
Fig. 2 is the flow chart of the multicast message transmission method in a kind of embodiment of the disclosure；
Fig. 3 is the structure chart of the multicast message transmitting device in a kind of embodiment of the disclosure；
Fig. 4 is the hardware structure diagram of the standby BRAS in a kind of embodiment of the disclosure.
Specific embodiment
In the term that the embodiment of the present disclosure uses merely for the sake of the purpose of description specific embodiment, and unrestricted public affairs
It opens." one kind " of singulative used in the disclosure and claims, " described " and "the" are also intended to including most shapes
Formula, unless context clearly shows that other meanings.It is also understood that term "and/or" used herein refers to comprising one
A or multiple associated list items purposes any or all may combine.
It will be appreciated that though various letters may be described using term first, second, third, etc. in the embodiment of the present disclosure
Breath, but these information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example,
Without departing from the scope of this disclosure, the first information can also be referred to as the second information, and similarly, the second information can also
It is referred to as the first information.Depending on linguistic context, in addition, used word " if " can be construed to " ... when " or
" when ... " or " in response to determining ".
When main BRAS does not break down, convergence-level equipment is in IGMP (the Internet Group for receiving host transmission
Management Protocol, Internet igmpinternet) after report message, IGMP report messages are sent to main BRAS,
Without IGMP report messages are sent to standby BRAS, main BRAS establishes the multicast list of host according to IGMP report messages, and
Multicast message is sent to host using multicast list.
But when main BRAS breaks down, convergence-level equipment needs that IGMP report messages are sent to standby BRAS again,
And standby BRAS establishes the multicast list of host according to IGMP report messages, and multicast message is sent to master using multicast list
Machine.Moreover, before standby BRAS establishes multicast list, multicast message can not be sent to host by standby BRAS, lead to multicast message
Transmission interrupt, influence user impression.
For above-mentioned discovery, a kind of multicast message transmission method is proposed in the embodiment of the present disclosure, this method can be applied to
Dual-host backup network in dual-host backup network, can dispose two or more BRAS, and a BRAS is main BRAS,
And other BRAS except main BRAS are standby BRAS.
It is shown in Figure 1, be the embodiment of the present disclosure application scenarios schematic diagram, in Fig. 1, be by taking two BRAS as an example into
Row explanation, in practical applications, the quantity of BRAS can also be more.
In Fig. 1, host can be any type of equipment, as IPTV (Internet Protocol Television,
Internet protocol television) equipment, PC (Personal Computer, personal computer), terminal device, it is without limitation.It connects
Enter the arbitrary equipment that layer equipment can be access layer, such as access-layer switch is without limitation.Convergence-level equipment can be converged
The arbitrary equipment of poly layer such as converges layer switch, without limitation.Core layer equipment can be the arbitrary equipment of core layer,
It is without limitation such as core layer router.
It is shown in Figure 1, it is main BRAS there are one BRAS in above-mentioned two BRAS, another BRAS is standby BRAS, with
BRAS101 is main BRAS, and BRAS102 is illustrated for being standby BRAS, in the follow-up process, main BRAS and standby is discussed in detail
The selection mode of BRAS, details are not described herein again.
In one example, main BRAS is elected as igmp querying device, and standby BRAS will not be elected as igmp querying device, have
Body election process repeats no more.Based on the operation principle of igmp querying device, it is elected as the main BRAS, Ke Yifa of igmp querying device
Send igmp querying message.Port 1111 is set as by convergence-level equipment 111 after igmp querying message is received by port 1111
Router port.Due to not receiving igmp querying message by port 1112, port 1112 will not be set as router
Port.
In order to add in multicast group G, each host can send IGMP report messages (such as IGMP membership reports message), should
IGMP report messages can carry multicast group G, represent that host belongs to multicast group G.
Access layer equipment 121 is sent to convergence-level equipment after IGMP report messages are received, by IGMP report messages
111.Convergence-level equipment 111 is after IGMP report messages are received, and from local search to router port, that is, inquires port
1111, and pass through the port 1111 inquired and send IGMP report messages.
Main BRAS can establish group after IGMP report messages are received by port 1011 according to the IGMP report messages
List item is broadcast, if multicast list can include multicast group G and the correspondence of port 1011, based on the multicast list, for group
The multicast message of group G is broadcast, can be forwarded by port 1011.
If main BRAS breaks down, new igmp querying device is elected as BRAS, specific election process is no longer superfluous
It states.Based on the operation principle of igmp querying device, the standby BRAS of igmp querying device is elected as, igmp querying message can be sent.
Port 1112 can be set as router side by convergence-level equipment 111 after igmp querying message is received by port 1112
Mouthful.In addition, convergence-level equipment 111 after IGMP report messages are received, can also pass through router port (the i.e. port
1112) IGMP report messages are sent.Standby BRAS is reported after IGMP report messages are received by port 1021 according to the IGMP
Message establishes multicast list, if multicast list includes the correspondence of multicast group G and port 1021, based on the multicast list,
For the multicast message of multicast group G, can be forwarded by port 1021.
Obviously, before standby BRAS establishes multicast list, multicast message can not be sent to host by standby BRAS, lead to multicast
The transmission of message is interrupted, and influences user's impression.That is, in dual-host backup network, when main BRAS and standby BRAS are sent out
During raw switching, there are the problems such as prolonged flow interrupt.
It is shown in Figure 2 for above-mentioned discovery, it, can for the flow chart for the multicast message transmission method that the present embodiment proposes
To be applied to BRAS, when BRAS is standby BRAS, this method can include：
Step 201, igmp querying message is sent to the convergence-level equipment being connect with standby BRAS, so that the convergence-level equipment root
According to the igmp querying message IGMP report messages are sent to standby BRAS.
In one example, no matter whether main BRAS breaks down, itself can be determined as igmp querying by standby BRAS
Device, and pass through the igmp querying device and send igmp querying message to the convergence-level equipment being connect with standby BRAS.In this way, convergence-level is set
For after igmp querying message is received, the receiving port of the igmp querying message can be set as router port.Moreover,
Convergence-level equipment can send IGMP report reports by the router port after IGMP report messages are received to standby BRAS
Text.
Wherein, itself can be determined as IGMP and looks by each BRAS (such as main BRAS and standby BRAS) of dual-host backup network
Device is ask, that is, multiple igmp querying devices is allowed to exist simultaneously.In this way, the operation principle based on igmp querying device, main BRAS and standby
BRAS can send igmp querying message.
In order to which each BRAS for making dual-host backup network itself will be determined as igmp querying device, following manner reality may be used
It is existing：Each BRAS for dual-host backup network issues the first configuration, this first is configured to that each BRAS is made to elect itself
For igmp querying device, in this way, it is igmp querying device that main BRAS, which can elect itself according to the first configuration, standby BRAS can basis
Itself election is igmp querying device by the first configuration.Alternatively, each BRAS for dual-host backup network issues the second configuration, this
Two are configured to the election for making each BRAS without igmp querying device, in this way, main BRAS can be based on second configuration without
The election of igmp querying device, main BRAS automatically become igmp querying device, and standby BRAS can also be based on the second configuration without IGMP
The election of requestor, standby BRAS automatically become igmp querying device.
Shown in Figure 1, main BRAS and standby BRAS are igmp querying device, main based on the operation principle of igmp querying device
BRAS can send igmp querying message, and such as periodicity sending igmp querying message, standby BRAS can also send igmp querying report
Text, such as periodicity sending igmp querying message.
Convergence-level equipment 111 can will be held after the igmp querying message that main BRAS is sent is received by port 1111
Mouth 1111 is set as router port.Convergence-level equipment 111 is in the igmp querying that standby BRAS transmissions are received by port 1112
After message, port 1112 can be set as router port.
Further, in order to add in multicast group G, each host (such as host 141, host 142, host 143) can be sent out
IGMP report messages (such as IGMP membership reports message) are sent, which can carry multicast group G, and representing should
Host belongs to multicast group G.Access layer equipment 121 can send out the IGMP report messages after the IGMP report messages are received
Give convergence-level equipment 111.
Convergence-level equipment 111 from local search to router port, that is, inquires after the IGMP report messages are received
Port 1111 and port 1112, therefore, convergence-level equipment 111 can respectively be sent out by the port 1111 inquired and port 1112
Send IGMP report messages.That is, IGMP report messages can be sent to main BRAS by convergence-level equipment 111, and can incite somebody to action
IGMP report messages are sent to standby BRAS.
Step 202, after IGMP report messages are received, multicast list is established according to IGMP report messages.
In one example, main BRAS can then be reported according to the IGMP and be reported after the IGMP report messages are received
Text establishes multicast list, which is used to record the correspondence of multicast group and exit port.In addition, standby BRAS is being received
After the IGMP report messages, can also multicast list be established according to the IGMP report messages, which is used for record group
Broadcast the correspondence of group and exit port.
Shown in Figure 1, main BRAS is reported according to the IGMP and is reported after IGMP report messages are received by port 1011
Text establishes multicast list, if multicast list includes multicast group G and the correspondence of port 1011, based on the multicast list, needle
To the multicast message of multicast group G, can be forwarded by port 1011.In addition, standby BRAS is received by port 1021
After IGMP report messages, multicast list is established according to the IGMP report messages, as multicast list includes multicast group G and port 1021
Correspondence, based on the multicast list, for the multicast message of multicast group G, can be forwarded by port 1021.
Step 203, after multicast message is received, if main BRAS does not break down, refusal is forwarded by the multicast list
If main BRAS breaks down, the multicast message is forwarded by the multicast list for the multicast message.
Shown in Figure 1, if main BRAS does not break down, main BRAS can pass through master after multicast message is received
The multicast list that BRAS is established sends the multicast message.For example, if multicast message corresponds to multicast group G, main BRAS can pass through
Multicast group G inquires multicast list, obtains exit port corresponding with multicast group G, i.e. port 1011, therefore main BRAS passes through end
Mouth 1011 sends the multicast message.
If main BRAS does not break down, for BRAS after multicast message is received, can refuse to establish by standby BRAS
Multicast list send the multicast message, and can directly abandon the multicast message.
With continued reference to shown in Fig. 1, if main BRAS breaks down, main BRAS can not be handled multicast message.It is and standby
BRAS is after multicast message is received, since main BRAS has occurred and that failure, the multicast table that can be established by standby BRAS
Item sends the multicast message.For example, if multicast message corresponds to multicast group G, can multicast table be inquired by multicast group G for BRAS
, exit port corresponding with multicast group G, i.e. port 1021 are obtained, therefore, standby BRAS sends the multicast report by port 1021
Text.
In one example, if standby BRAS knows that main BRAS does not break down, self-role will not be switched for BRAS, i.e.,
Standby BRAS is still standby BRAS, and therefore, for standby BRAS after multicast message is received, refusal sends the multicast message, but directly
Abandon the multicast message.In addition, if standby BRAS knows that main BRAS breaks down, self-role can be switched for BRAS, i.e., it is standby
BRAS is switched to new main BRAS, and original main BRAS is switched to new standby BRAS, and therefore, standby BRAS (has currently been switched to
Main BRAS) after multicast message is received, the multicast message can be sent according to multicast list.
With continued reference to shown in Fig. 1, if host 141, host 142 and host 143 add in multicast group G,：
In one example, main BRAS/ can replicate 3 parts of multicast messages, claim respectively for BRAS when sending multicast message
For multicast message 1, multicast message 2 and multicast message 3；Then, main BRAS/ sends the multicast message for host 141 for BRAS
1st, for the multicast message 2 of host 142, the multicast message 3 for host 143.Convergence-level equipment 111 is receiving multicast message
1st, after multicast message 2 and multicast message 3, multicast message 1, multicast message 2 and multicast message 3 are sent to access layer equipment
121.Access layer equipment 121 is sent to master after multicast message 1, multicast message 2 and multicast message 3 is received, by multicast message 1
Machine 141, host 142 is sent to by multicast message 2, and multicast message 3 is sent to host 143.
In another example, main BRAS/, when sending multicast message, can only send a multicast message for BRAS,
For example, M-VLAN (Virtual Local Area Network, virtual LAN) is encapsulated for multicast message, it is then, main
BRAS/ sends the multicast message for carrying M-VLAN for BRAS.Convergence-level equipment 111 is after multicast message is received, by the group
It reports text and is sent to access layer equipment 121.Access layer equipment 121 is after multicast message is received, since the multicast message encapsulates
There is M-VLAN, therefore, multicast message can be sent to the corresponding host 141 of the M-VLAN, host 142 and host 143.
Based on above-mentioned technical proposal, in the embodiment of the present disclosure, standby BRAS pre-establishes multicast list, if main BRAS does not occur
Failure is then refused through multicast list forwarding multicasting message, and main BRAS and standby BRAS is avoided to send multicast message, leads to host
Receive two parts of identical multicast messages.If main BRAS breaks down, by multicast list forwarding multicasting message, due to master
Multicast list is established before BRAS failures, therefore after main BRAS failures, it, can direct forwarding group without re-establishing multicast list
Text is reported, avoids the Transmission of multicast message, user is improved and experiences, multicast service after active-standby switch under realization two-node networking
Fast quick-recovery.
In the above-described embodiments, for each BRAS (such as BRAS101 and BRAS102), it can first know that itself is
Main BRAS or standby BRAS, in Fig. 1, BRAS101 are main BRAS, and BRAS102 is standby BRAS.In order to realize this process,
In one example, configuration order can be sent to BRAS, which is used to indicate BRAS as main BRAS or standby BRAS.Example
Such as, configuration order 1 can be sent to BRAS101, which is used to indicate BRAS101 as main BRAS, in this way, BRAS101
Itself can be determined as main BRAS.Configuration order 2 can be sent to BRAS102, which is used to indicate BRAS102
For standby BRAS, in this way, itself can be determined as standby BRAS by BRAS102.
In another example, BRAS can obtain the mark of other BRAS from the igmp querying message that other BRAS are sent
Know, and this BRAS can be determined for main BRAS or standby BRAS according to the mark of this BRAS and the mark of other BRAS.Further
, BRAS determines that this BRAS for main BRAS or standby BRAS, can include according to the mark of this BRAS and the mark of other BRAS
But it is not limited to：
If mode one, the mark of this BRAS are minimum marks, it is main BRAS that can determine this BRAS；If this BRAS's
Mark is not minimum mark, then it is standby BRAS that can determine this BRAS.
If mode two, the mark of this BRAS are the largest mark, it is main BRAS that can determine this BRAS；If this BRAS's
Mark is not the largest mark, then it is standby BRAS that can determine this BRAS.
Wherein, above-mentioned mark can include but is not limited to：IP address；Alternatively, (Media Access Control's MAC are situated between
Matter access control) address.In the follow-up process, it is illustrated by taking IP address as an example.
Shown in Figure 1, BRAS101 can send igmp querying message, and convergence-level equipment 111 is receiving igmp querying
After message, which is sent to BRAS102.BRAS102 is after igmp querying message is received, from igmp querying
The IP address of BRAS101 is parsed in message.Then, BRAS102 compares the IP address of itself and the IP address of BRAS101, with
For aforesaid way one, if the IP address of BRAS102 is more than the IP address of BRAS101, it is determined that BRAS102 is standby BRAS.
Shown in Figure 1, BRAS102 can send igmp querying message, and convergence-level equipment 111 is receiving igmp querying
After message, which is sent to BRAS101.BRAS101 is after igmp querying message is received, from igmp querying
The IP address of BRAS102 is parsed in message.Then, BRAS101 compares the IP address of itself and the IP address of BRAS102, with
For aforesaid way one, if the IP address of BRAS102 is more than the IP address of BRAS101, it is determined that BRAS101 is main BRAS.
So far, BRAS102 determines itself to be standby BRAS, and BRAS101 determines itself to be main BRAS.
In the above-described embodiments, standby BRAS can also know whether main BRAS breaks down, if main BRAS does not break down,
Refusal, if main BRAS breaks down, passes through multicast list forwarding multicasting message by multicast list forwarding multicasting message.For master
What whether BRAS broke down knows mode, including：
Situation one, standby BRAS can be according to foundation and the associated BFD of IGMP (Bidirectional Forwarding
Detection, two-way converting detection) session detects whether main BRAS breaks down, that is, detect main BRAS break down or
It does not break down.Wherein, BFD sessions are standby BFD sessions between BRAS and main BRAS.For example, it may be main BRAS is standby
The BFD sessions established between BRAS and main BRAS or standby BRAS is in the standby BFD meetings established between BRAS and main BRAS
Words.
Wherein, BFD can be two-way converting testing mechanism, can realize the quick detection of failure, and BFD can be with upper strata
Agreement (such as upper-layer protocol can be IGMP) links.Specifically, a BFD can be established between BRAS and main BRAS standby
Session such as establishes a BFD session, to this BFD session establishments process not standby between BRAS, convergence-level equipment 111, main BRAS
It is limited.Then, progress BFD detections between the standby BRAS of BFD sessions and main BRAS are being established, this detection process is not being limited
System.
Wherein, standby BRAS can include being used to implement the BFD modules of BFD functions, being used to implement the IGMP moulds of multicast functionality
Block if BFD modules detect that main BRAS breaks down, notifies IGMP modules, and IGMP modules are perceiving main BRAS generations
During failure, multicast list forwarding multicasting message can be passed through.If BFD modules detect that main BRAS does not break down, notify
IGMP modules, IGMP modules can be refused when perceiving main BRAS and not breaking down through multicast list forwarding multicasting message.
Since upper-layer protocol is IGMP, BFD sessions are known as the associated BFD sessions of IGMP.
It is specific that situation two, main BRAS send carrying after the network-side port for perceiving itself breaks down, to standby BRAS
The igmp querying message of mark.If standby BRAS receives the igmp querying message that main BRAS is sent, and igmp querying message carries
There is specific identifier, it is determined that main BRAS breaks down.
Shown in Figure 1, main BRAS breaks down (such as port DOWN) perceiving network-side port (such as port 1012)
Afterwards, igmp querying message can be sent by port 1011, which carries Max Resp Time (peak responses
Time) field, and the value of Max Resp Time fields is specific identifier (such as full F).Standby BRAS is receiving main BRAS transmissions
Igmp querying message after, due to the igmp querying message carry specific identifier, hence, it can be determined that main BRAS breaks down.
Wherein, the network-side port of main BRAS can be the uplink port of main BRAS, i.e., connect with core layer equipment 131
Port.
Wherein, main BRAS is after perceiving network-side port and breaking down, then it represents that main BRAS can not receive core layer
Therefore the multicast message that equipment 131 is sent, can send igmp querying message, which takes by port 1011
Band specific identifier.In this way, standby BRAS can determine that main BRAS breaks down, standby BRAS upgrades to new main BRAS, and pass through group
Broadcast list item forwarding multicasting message.
Based on similarly conceiving with the above method, the embodiment of the present disclosure also proposes a kind of multicast message transmitting device, can be with
Applied to BRAS, as shown in figure 3, the structure chart for described device, described device can include sending module 301, establish module
302nd, processing module 303, when the BRAS is standby BRAS：
The sending module 301, for sending igmp querying message to the convergence-level equipment being connect with standby BRAS, so as to converge
Poly layer equipment sends IGMP report messages according to the igmp querying message to standby BRAS；
It is described to establish module 302, for after IGMP report messages are received, group to be established according to the IGMP report messages
Broadcast list item；
The processing module 303, for when main BRAS does not break down, then refusal to pass through the multicast list forwarding group
Report text；When main BRAS breaks down, then pass through the multicast list forwarding multicasting message.
The processing module 303 is additionally operable to detect whether main BRAS occurs according to foundation BFD sessions associated with IGMP
Failure；Wherein, the BFD sessions are the BFD sessions between the standby BRAS and main BRAS.
In one example, the multicast message transmitting device further includes (not depending on going out in Fig. 3)：Determining module, for from
The mark of other BRAS is obtained in the igmp querying message that other BRAS are sent；According to the mark of this BRAS and the mark of other BRAS
Know, determine this BRAS for main BRAS or standby BRAS；
Wherein, according to the mark of this BRAS and the mark of other BRAS, determine this BRAS for main BRAS or standby BRAS
When, if the mark of this BRAS is minimum mark, it is main BRAS to determine this BRAS；If the mark of this BRAS is not minimum mark
Know, it is standby BRAS to determine this BRAS；Or, if the mark of this BRAS is the largest mark, determines this BRAS for main BRAS；If this
The mark of BRAS is not the largest mark, and it is standby BRAS to determine this BRAS；
Wherein, the mark is specially：IP address；Alternatively, MAC Address.
The processing module 303 is additionally operable in the igmp querying message for receiving the main BRAS transmissions, and the IGMP
Query message carries specific identifier, it is determined that the main BRAS breaks down；The igmp querying message is that the main BRAS exists
Perceive what is sent after the network-side port of itself breaks down.
When the BRAS is main BRAS, the sending module 301, in the network-side port hair for perceiving main BRAS
After raw failure, the igmp querying message for carrying specific identifier is sent to the standby BRAS, so that standby BRAS is looked into according to the IGMP
The specific identifier for asking message determines that the main BRAS breaks down.
A kind of electronic equipment (i.e. above-mentioned standby BRAS), for hardware view, hardware structure are provided in the embodiment of the present disclosure
Schematic diagram may refer to shown in Fig. 4.Including：Machine readable storage medium and processor, wherein：
Machine readable storage medium：Store the machine-executable instruction that can be performed by the processor.
Processor：It communicates, is stored in reading and execution machine readable storage medium described with machine readable storage medium
Machine-executable instruction realizes multicast message transmission operation disclosed in disclosure above-mentioned example.
Here, machine readable storage medium can be any electronics, magnetism, optics or other physical storage devices, can be with
Comprising or storage information, such as executable instruction, data, etc..For example, machine readable storage medium can be：RAM(Radom
Access Memory, random access memory), volatile memory, nonvolatile memory, flash memory, memory driver is (as hard
Disk drive), solid state disk, any kind of storage dish (such as CD, dvd) either similar storage medium or they
Combination.
System, device, module or the unit that above-described embodiment illustrates can specifically realize by computer chip or entity,
Or it is realized by having the function of certain product.A kind of typical realization equipment is computer, and the concrete form of computer can
To be personal computer, laptop computer, cellular phone, camera phone, smart phone, personal digital assistant, media play
In device, navigation equipment, E-mail receiver/send equipment, game console, tablet computer, wearable device or these equipment
The combination of arbitrary several equipment.
For convenience of description, it is divided into various units during description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit is realized can in the same or multiple software and or hardware when open.
It should be understood by those skilled in the art that, embodiment of the disclosure can be provided as method, system or computer program
Product.Therefore, the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware can be used in the disclosure
Apply the form of example.Moreover, the embodiment of the present disclosure can be used wherein includes computer usable program code in one or more
The computer that computer-usable storage medium is implemented on (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of program product.
The disclosure is with reference to the flow according to the method for the embodiment of the present disclosure, equipment (system) and computer program product
Figure and/or block diagram describe.It is generally understood that it is realized by computer program instructions each in flowchart and/or the block diagram
The combination of flow and/or box in flow and/or box and flowchart and/or the block diagram.These computer journeys can be provided
Sequence instruct to all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor with
Generate a machine so that the instruction generation performed by computer or the processor of other programmable data processing devices is used for
Realize the dress of function specified in one flow of flow chart or multiple flows and/or one box of block diagram or multiple boxes
It puts.
Computer or other programmable datas can be guided to handle and set moreover, these computer program instructions can also be stored in
In the standby computer-readable memory to work in a specific way so that the instruction being stored in the computer-readable memory generates
Manufacture including command device, the command device are realized in one flow of flow chart or multiple flows and/or block diagram one
The function of being specified in a box or multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer
Or the instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram
The step of function of being specified in one box or multiple boxes.
The foregoing is merely embodiment of the disclosure, are not limited to the disclosure.For those skilled in the art
For, the disclosure can have various modifications and variations.All any modifications made within the spirit and principle of the disclosure are equal
Replace, improve etc., it should be included within the right of the disclosure.
Claims (13)
1. a kind of multicast message transmission method, which is characterized in that applied to BRAS, the method includes：
When the BRAS is standby BRAS, igmp querying message is sent to the convergence-level equipment being connect with the standby BRAS, so that
The convergence-level equipment sends IGMP report messages according to the igmp querying message to the standby BRAS；
After IGMP report messages are received, multicast list is established according to the IGMP report messages；
If main BRAS does not break down, refusal passes through the multicast list forwarding multicasting message；
If main BRAS breaks down, pass through the multicast list forwarding multicasting message.
2. according to the method described in claim 1, it is characterized in that, the method further includes：
Detect whether main BRAS breaks down according to foundation BFD sessions associated with IGMP；
Wherein, the BFD sessions are the BFD sessions between the standby BRAS and main BRAS.
3. according to the method described in claim 1, it is characterized in that, the method further includes：
The mark of other BRAS is obtained in the igmp querying message sent from other BRAS；According to the mark of this BRAS and other
The mark of BRAS determines this BRAS for main BRAS or standby BRAS.
It is 4. according to the method described in claim 3, it is characterized in that, described according to the mark of this BRAS and the mark of other BRAS
Know, determine this BRAS as main BRAS or standby BRAS, including：
If the mark of this BRAS is minimum mark, it is main BRAS to determine this BRAS；If the mark of this BRAS is not minimum mark
Know, it is standby BRAS to determine this BRAS；Alternatively,
If the mark of this BRAS is the largest mark, it is main BRAS to determine this BRAS；If the mark of this BRAS is not the largest mark
Know, it is standby BRAS to determine this BRAS；
Wherein, the mark is specially：IP address；Alternatively, MAC Address.
5. according to the method described in claim 1, it is characterized in that, the method further includes：
If the igmp querying message that the main BRAS is sent is received, and the igmp querying message carries specific identifier, then really
The fixed main BRAS breaks down；Wherein, the igmp querying message is the main BRAS in the network side for perceiving itself
What mouth was sent after breaking down.
6. according to the method described in claim 1, it is characterized in that, the method further includes：
When the BRAS is main BRAS, after the network-side port for perceiving itself breaks down, sent to the standby BRAS
The igmp querying message of specific identifier is carried, so that standby BRAS determines the master according to the specific identifier of the igmp querying message
BRAS breaks down.
7. a kind of multicast message transmitting device, which is characterized in that applied to BRAS, described device includes：Sending module establishes mould
Block, processing module, when the BRAS is standby BRAS：
The sending module, for sending igmp querying message to the convergence-level equipment being connect with standby BRAS, so that convergence-level is set
It is standby that IGMP report messages are sent to standby BRAS according to the igmp querying message；
It is described to establish module, for after IGMP report messages are received, multicast list to be established according to the IGMP report messages；
The processing module, for when main BRAS does not break down, then refusal to pass through the multicast list forwarding multicasting message；
When main BRAS breaks down, then pass through the multicast list forwarding multicasting message.
8. device according to claim 7, which is characterized in that the processing module is additionally operable to according to foundation and IGMP
Associated BFD sessions detect whether main BRAS breaks down；Wherein, the BFD sessions are the standby BRAS and main BRAS
Between BFD sessions.
9. device according to claim 7, which is characterized in that further include：Determining module, for what is sent from other BRAS
The mark of other BRAS is obtained in igmp querying message；According to the mark of this BRAS and the mark of other BRAS, this BRAS is determined
For main BRAS or standby BRAS；
Wherein, according to the mark of this BRAS and the mark of other BRAS, when determining this BRAS as main BRAS or standby BRAS, if
The mark of this BRAS is minimum mark, and it is main BRAS to determine this BRAS；If the mark of this BRAS is not minimum mark, determine
This BRAS is standby BRAS；Or, if the mark of this BRAS is the largest mark, determines this BRAS for main BRAS；If the mark of this BRAS
Knowledge is not the largest mark, and it is standby BRAS to determine this BRAS；
Wherein, the mark is specially：IP address；Alternatively, MAC Address.
10. device according to claim 7, which is characterized in that
The processing module is additionally operable in the igmp querying message for receiving the main BRAS transmissions, and the igmp querying report
Text carries specific identifier, it is determined that the main BRAS breaks down；The igmp querying message is that the main BRAS is being perceived
What the network-side port of itself was sent after breaking down.
11. device according to claim 7, which is characterized in that when the BRAS is main BRAS, the sending module,
After breaking down in the network-side port for perceiving main BRAS, the IGMP that carrying specific identifier is sent to the standby BRAS is looked into
Message is ask, so that standby BRAS determines that the main BRAS breaks down according to the specific identifier of the igmp querying message.
12. a kind of electronic equipment, which is characterized in that including：Processor and machine readable storage medium, the machine readable storage
Media storage has the machine-executable instruction that can be executed by processor；The processor can perform finger for performing the machine
It enables, to realize any method and steps of claim 1-6.
13. a kind of machine readable storage medium, which is characterized in that the machine readable storage medium is stored with machine and can perform finger
It enables, for the machine-executable instruction when being called and being performed by processor, the machine-executable instruction promotes the processor
Realize any method and steps of claim 1-6.
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