CN103812707B - A kind of method for processing forwarding of line identification message - Google Patents
A kind of method for processing forwarding of line identification message Download PDFInfo
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- CN103812707B CN103812707B CN201410070820.8A CN201410070820A CN103812707B CN 103812707 B CN103812707 B CN 103812707B CN 201410070820 A CN201410070820 A CN 201410070820A CN 103812707 B CN103812707 B CN 103812707B
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Abstract
The present invention relates to a kind of method for processing forwarding of line identification message, when the OLT of EPON system is connected to the uplink protocol massages of user equipment to report, the CPU management of OLT is newly-built according to the user information in uplink protocol massages or updates corresponding user record, to manage the target MAC (Media Access Control) address to match with the user information and down forward information；When OLT receives the descending protocol message that server issues, CPU management searches the consistent user record of destination-mac address in recorded user's MAC address and descending protocol message, and the descending protocol message is forwarded to user equipment specified by user record；When the target MAC (Media Access Control) address in downlink protocol massages is broadcast address, the broadcast address is replaced with the user's MAC address in user record by CPU management, realize and forward to the Unique unicast of designated user's equipment that it is excessive to solve the problems, such as that descending protocol message whole broadcast or part broadcast etc. cause user bandwidth to consume.
Description
Technical field
The present invention relates to optical communication fields, in particular to a kind of forward process of new line identification message in EPON system
Method.
Background technique
For PON(passive optical network) business and exchange business by PON chip processing EPON(ether passive optical network
Network) system, wherein the method for line identification protocol massages processing forward has following two:
One, the processing of PPPoE+:
Point-to-point protocol of the PPPoE(based on Ethernet) realization process include discovery (Discovery) stage and session
Stage, line identification are mainly handled discovery phase.Discovery phase process is as follows:
1. subscriber's main station issues PPPoE and effectively finds initial (PADI) packet.PADI packet must contain at least one Service name
The label for claiming type (Service-Name), for proposing the required service provided to access device.
After 2. access device receives the PADI packet in service range, send PPPoE effectively find to provide (PADO) packet with
Respond request.PADO packet must include the label and one or more service of an access device name type (AC-Name)
Name type label shows the type service that can be provided to subscriber's main station.
3. subscriber's main station selects a suitable access device, the principle of selection in the multiple PADO packets that may be received
It is the content according to access device name type label in PADO and service name type label.Then subscriber's main station is to selected
The access device selected sends PPPoE and effectively finds request (PADR) packet.PADR packet must include a service name type label,
Determine the type service requested to access device.When a subscriber's main station is determining that the time do not receive PADO, it can retransmit one
A PADI, while waiting twice of time.This process can according to need repeatedly.
4. access device prepares to start PPP(point-to-point protocol after receiving PADR packet) session, it sends a PPPoE
Effectively discovery session confirmation (PADS) packet.PADS packet must also confirm comprising the label of a service name type to householder
The service that machine provides.After subscriber's main station receives the confirmation of PADS packet, both sides enter PPP session stage.If access device is not
It can identify the label of the service name type in PADR, then can return one and include service name mistake (Service-Name-
Error) the PADS of label.If subscriber's main station is determining that the time confiscates PADS packet, make same processing with PADO is confiscated.
It effectively finds to terminate (PADT) packet there are also a kind of PPPoE, it at any time can be by with householder after a PPP session establishment
Either party sends in machine or access device, and instruction PPP session has terminated.
As shown in Figure 1, the OLT(optical line terminal of EPON system) belong to a lan device, under a usual OLT
Face can all connect hundreds or even thousands platform ONU(optical network unit), can be carried additionally under every ONU again multiple EoC(ether data pass through it is same
Shaft cable transmission) equipment, multiple terminal users is accessed by EoC equipment, so terminal user's meeting that an OLT is accessed below
It is thousands of or even up to ten thousand.PPPoE+ mainly will be seen that the uplink PPPoE protocol massages PADI/PADR in stage from the PON of OLT
Mouth is forwarded to CPU management, adds some user's physical messages by CPU management, then be sent to server by upper united mouth NNI.It is right
In downlink PPPoE protocol massages PADO/PADS, CPU management is gone to from the upper united mouth of OLT, removes user's physics by CPU management
Information, then user is issued to by PON mouthfuls.In the EPON system of PON business and exchange business by PON chip processing, although
Unicast mac address is used, but the downlink PPPoE protocol massages that chip upper united mouth receives still can be broadcast to the block chip institute
There are all ONU and all users under PON mouthfuls.
Two, the processing of DHCP Option 82:
DHCP(dynamic host configuration protocol) realization:
1. the stage of discovery phase, i.e. DHCP client searching Dynamic Host Configuration Protocol server.DHCP client with broadcast mode (because
IP address for Dynamic Host Configuration Protocol server is unknown for client computer) transmission DHCP discover discovery information finds
Dynamic Host Configuration Protocol server sends specific broadcast message to address 255.255.255.255.Each is mounted with TCP/IP on network
The host of agreement can all receive this broadcast message, but only Dynamic Host Configuration Protocol server can just respond.
2. the stage of offer, i.e. Dynamic Host Configuration Protocol server provide the stage of IP address.DHCP discover is received in a network
It was found that the Dynamic Host Configuration Protocol server of information can all respond, it selects one from the IP address not yet hired out and distributes to DHCP client
Machine provides information to DHCP client broadcast transmission one IP address comprising hiring out and other DHCP offer being arranged.
3. the stage for the IP address that choice phase, i.e. DHCP client select certain Dynamic Host Configuration Protocol server to provide.If there is more
DHCP offer that platform Dynamic Host Configuration Protocol server is sent to DHCP client provides information, then DHCP client only receives first and receives
DHCP offer information is provided, then it is just with broadcast mode one DHCP request solicited message of answer, in the information
Include the content to its selected Dynamic Host Configuration Protocol server IP address requesting.Why to be answered with broadcast mode, be to notify
All Dynamic Host Configuration Protocol server, it will select IP address provided by certain Dynamic Host Configuration Protocol server.
4. the stage that confirmation stage, i.e. Dynamic Host Configuration Protocol server confirm provided IP address.When Dynamic Host Configuration Protocol server receives DHCP
After the DHCP request solicited message that client computer is answered, it is just provided to DHCP client broadcast transmission one comprising it
IP address and other settings DHCP ack confirmation messages, tell DHCP client that IP address provided by it can be used.
Then DHCP client is just by its ICP/IP protocol and network card binding, in addition, in addition to the server that DHCP client is chosen, other
Dynamic Host Configuration Protocol server the IP address that once provided will be all provided.
5. logging in again.Later DHCP client every time again logging in network when, there is no need to retransmit DHCP
Discover has found information, but directly transmits the DHCP request request letter comprising the preceding IP address once distributed
Breath.After Dynamic Host Configuration Protocol server receives this information, it can attempt that DHCP client is allowed to continue to use original IP address, and answer
One DHCP ack confirmation message.(than such when if this IP address can not have been reallocated to original DHCP client use
IP address has distributed to other DHCP client uses), then Dynamic Host Configuration Protocol server answers a DHCP nack to DHCP client
Deny information.After original DHCP client, which receives this DHCP nack, denies information, it must just retransmit DHCP
Discover discovery information carrys out the IP address that please be looked for novelty.
6. DHCP client can terminate the lease period of server offer in advance at any time, at this moment need to only be sent out to Dynamic Host Configuration Protocol server
DHCP release is sent to discharge message.
As shown in Fig. 2, DHCP Option 82 is mainly the DHCP message sent by the CPU management of OLT in user side
In discover/request/release, user's physical location information is added to cooperate top service device to verify.OLT will
The protocol massages of uplink user side are forwarded to CPU management from PON mouthfuls, by some user's physical messages of CPU management addition, then by
Upper united mouth is sent to server.It is to go to management from the upper united mouth of OLT for downlink DHCP protocol message offer/ack/nack
CPU removes user's physical message by CPU management, then is issued to user by PON mouthfuls.
As shown in Figure 3, Figure 4, in the EPON system in PON business and exchange business by PON chip processing, for uplink
DHCP protocol packet in addition to release discharges message, will record user's MAC address and PON message breath, uplink receive use every time
When the DHCP protocol message of family side, the MAC Address of user and PON slogan are got up using chained list dynamic application node record, it is right
The protocol massages in addition to nack denies information that downstream service device is replied will be searched in chained list node by user's MAC address
PON slogan, to be forwarded to the PON mouthfuls.Since the protocol package that downstream service device is replied is broadcast packet, so under the PON mouthfuls
All ONU are all with will receive per family.Chained list dynamic application is discharged when OLT CPU management receives DHCP release message
Record the node of user's MAC address.Information is denied for the release of the uplink nack for discharging message or downlink, then be all by
The user node release found in chained list is deleted.
It can be seen that the line identification technology of existing OLT, when realizing 82 function of PPPoE+ DHCP Option, management
CPU forwards the processing of downlink message with broadcast or part broadcast mode.PPPoE+ processing in can be broadcast to it is PON mouthfuls all,
All ONU, all users.When large quantities of users dial simultaneously, lower guild generates many broadcast packets, consumes user bandwidth, makes
At network congestion, subscriber dialing time-out, and PADI request is sent repeatedly, may cause broadcast storm when serious.Since downlink is wide
It broadcasts, the interactive information of server and user can be received by all users, and there are serious security risks.Although right in DHCP processing
Downlink limits, and is forwarded to the PON mouth of request record, but due to using broadcast MAC address when downlink is responded and wrapped, therefore
Or all ONU and all users that can be broadcast under the PON mouthfuls.Bandwidth consumption and safety problem etc. are equally existed, while right
The deletion of user record wants user's active transmission DHCP release message to delete.The seldom active transmission of practical application user should
Message, the problems such as easily causing memory to waste.
Summary of the invention
Disclosure sets forth a kind of realize in EPON system to carry out to 82 protocol massages of PPPoE+ DHCP Option
The method of reasonable processing forward, solving this kind of protocol massages downlink, all broadcast or part broadcast etc. cause user bandwidth to consume
Excessively, the problems such as memory wastes when network congestion, security risk and Message processing.
In order to achieve the above object, the technical solution of the present invention is to provide a kind of forward process sides of line identification message
Method, when the OLT of EPON system is connected to the uplink protocol massages of user equipment to report, the CPU management of OLT is according to uplink agreement report
User information in text is newly-built or updates corresponding user record, to manage the target MAC (Media Access Control) address to match with the user information
And down forward information；
When OLT receives the descending protocol message that server issues, CPU management searches recorded user's MAC address under
The consistent user record of destination-mac address in row protocol massages, and the descending protocol message is forwarded to user record institute
Specified user equipment；When the target MAC (Media Access Control) address in downlink protocol massages is broadcast address, CPU management is by the broadcast address
The user's MAC address in user record is replaced with, realizes the unicast forwarding to designated user's equipment.
Optionally, described to down forward information, include chip ID number, PON slogan and No. LLID.
Optionally, it is the one-dimentional structure body array of N*M, Lai Jilu uplink agreement report that definition, which has array element number, in OLT
User information in text；Wherein, N is the protocol package quantity per second for reporting CPU management, and M is to carry out primary complete interactive process
Time-out time；The attribute of array member includes to record come into force mark, chip ID number, PON slogan, No. LLID and user's MAC address.
Optionally, when the uplink protocol massages that CPU management judgement receives are disconnecting messages, according to uplink agreement report
User's MAC address in text completes the traversal of logarithm group membership, searches in recorded user's MAC address and uplink protocol massages
Consistent array member comes into force the record of these array members found after mark is changed to non-active states from active states,
Server is forwarded to by uplink protocol massages and to the identification information that it is added.
Optionally, there is also defined in OLT be initially 0 global variable K；
When the uplink protocol massages that CPU management judgement receives are not disconnecting messages, according in uplink protocol massages
User's MAC address traverse k-th member from first member of array, search recorded user's MAC address and uplink
Consistent array member in protocol massages；
It comes into force after mark is changed to non-active states from active states, or is not having in the record for the array member that will be found
When finding corresponding array member, the record of array member K is come into force traffic sign placement for active states, according to uplink by CPU management
User information in protocol massages updates the user record in array member K, and K numerical value is made to add one；Later, CPU management is by uplink
Protocol massages and server is forwarded to the identification information that it is added.
Optionally, the disconnecting message is PADT packet when OLT work is under PPPoE+ agreement；
The disconnecting message is DHCP release release message when OLT work is under DHCP Option82 agreement.
Optionally, when the descending protocol message that CPU management judgement receives is that message is denied in access, according to descending protocol report
User's MAC address logarithm group membership in text traverses, and searches one in recorded user's MAC address and uplink protocol massages
It causes and records the array member that the mark that comes into force is active states；
For the array member found, is recorded the mark that comes into force and be changed to non-active states, CPU management is also by descending protocol
After target MAC (Media Access Control) address in message is replaced with the user's MAC address that these arrays member is recorded, cooperate recorded chip id
Number, PON slogan and No. LLID, the descending protocol message after the user equipment unicast forwarding removing identification information of Xiang Zhiding.
Optionally, when the descending protocol message that CPU management judgement receives is not that message is denied in access, according to descending protocol
User's MAC address logarithm group membership in message traverses, and searches recorded user's MAC address and chip ID number and uplink
In protocol massages consistent and record come into force mark be active states array member；
For the array member found, CPU management is by the target MAC (Media Access Control) address in descending protocol message with these arrays member
After the user's MAC address replacement recorded, the recorded chip ID number of cooperation, PON slogan and No. LLID, the user of Xiang Zhiding is set
Descending protocol message after standby unicast forwarding removing identification information；
If do not find corresponding array member after the completion of traversal, CPU management directly abandons descending protocol message.
Optionally, the access denies that message is DHCP nack message when OLT work is under DHCP Option82 agreement.
Compared with prior art, the method for processing forwarding of line identification message of the present invention, the advantage is that: of the invention
Solving such protocol massages downlink, all broadcast or part broadcast etc. cause user bandwidth consumption excessive, network congestion, safety
The problems such as hidden danger and RAM leakage, passes through the cycle index to upstream request packet and dynamically update, it is ensured that each user's is every
Secondary request interaction packet processing will not be covered because of user record, not to down forwarding and overtime, also ensure that each user's is every
A upward position record is newest.Specified LLID and replacement broadcast purpose MAC are passed through to downlink, it is ensured that downlink responds packet
User's Unique unicast.
Detailed description of the invention
Fig. 1 is the schematic diagram of the existing line identification protocol massages processing forward method based on PPPoE+；
Fig. 2 is the schematic diagram of the existing line identification protocol massages processing forward method based on DHCP Option82；
Fig. 3 is the existing uplink protocol massages process flow diagram based on DHCP Option82；
Fig. 4 is the existing descending protocol Message processing flow chart based on DHCP Option82.
Fig. 5 is the schematic diagram of DHCP Option82 line identification protocol massages processing forward method in the present invention；
Fig. 6 is in the present invention to the flow chart of line identification protocol massages uplink processing；
Fig. 7 is in the present invention to the flow chart of line identification protocol massages downlink processing.
Specific embodiment
The present invention provides a kind of method for processing forwarding of line identification message, in the OLT of EPON system, is closed by definition
The array and data structure of reason, the dynamic for carrying out record and relevant information to uplink protocol massages update, and the information includes core
The address piece ID(), PON slogan and LLID(logical links label) etc..Ensure the protocol package of each request interaction of each user
Processing will not cover because of user record, not to down forwarding and overtime, also ensure that each upward position of each user records
It is newest.User record is searched by user's MAC address and chip id when downlink.If finding user record, to be remembered
The forwarding information of the chip id of record, PON slogan and No. LLID setting to downstream.When the target MAC (Media Access Control) address of downlink protocol package is
When broadcast MAC address, when the messages such as offer, ack, nack when DHCP Option82 agreement, the user MAC of usage record
Broadcast MAC address is replaced in location, then protocol package can only be forwarded to the user under PON mouthfuls specified, specified ONU, accomplishes that user is unique
Unicast forwarding.It is to be illustrated by taking the message forwarding process under DHCP Option82 agreement as an example in Fig. 5, those skilled in the art can
The solution of the present invention is adapted to adjust to understand, the case where to be applied to PPPoE+ agreement.
The user information in uplink protocol massages is remembered specifically, defining one-dimentional structure body array in the present invention
Record, array element number are defined as N*M.Wherein, N refers to the quantity of the protocol package per second for reporting CPU management in EPON system, N
Select and system in the speed limit processing requirement of the protocol package for reporting CPU management is adapted (General N 10-20, i.e., it is per second to have
10-20 protocol package reports).M refers to that progress is primary complete under the line identifications related protocol such as PPPoE+ or DHCP Option82
The time-out time of interactive process (general M does not exceed 60s).Then when recycling covering, the retention time of each record is at least
N*M seconds.The attribute of the structural body includes to record the mark that comes into force, PON chip id (address) number, PON slogan, LLID(logic chain
Road sign note) number and the information such as user's MAC address.Invention also defines global variable K, initial value is assigned a value of 0.
As shown in fig. 6, when uplink protocol massages are sent to the PON mouth of OLT, CPU management can be by uplink protocol massages and right
The identification informations such as its user's physical location added, are sent to server by upper united mouth NNI.Period, CPU management judge
The type of row protocol massages carries out respective handling:
A1, if not disconnecting message, will be completed according to the user's MAC address in the message to one-dimentional structure body
The traversal of all members in array；That is, beginning stepping through from first member of array to k-th member, and compare array member
In user's MAC address whether have with the user's MAC address in the message protocol packet that is currently reported it is one or more identical.
Under the disconnecting message, e.g. the PADT packet under PPPoE+ agreement or DHCP Option82 agreement
DHCP release discharges message, etc..
If inquired user's MAC address identical array member, wait find the user's MAC address of all records with
After the identical array member of user's MAC address in message, the record of these arrays member is come into force into mark all from active states
Non- active states are changed to, and then execute B.If do not inquire user's MAC address identical array member, directly execution B.
B, using k-th member as new user's member record, the record that member K is arranged comes into force mark for the shape that comes into force
State, and according to the information in uplink protocol massages, update the PON chip ID number recorded in array member K, PON slogan, LLID
Number and user's MAC address information, member record so that K numerical value is added one (if K is more than or equal to N*M, by K assignment after the completion of updating
For 0).Hereafter, uplink protocol massages and added identification information, directly from upper united mouth, NNI is forwarded.Pass through above-mentioned logarithm
The user information of group membership's record is updated, and be can effectively prevent downlink after same user replaces PON mouthfuls or replacement ONU and is still used
Old record leads to the problem of down forwarding error generation.
If A2, CPU management judge that uplink protocol massages are disconnecting messages, will be according to the user in the message
MAC Address is begun stepping through from first member of one-dimentional structure body array；
If the user's MAC address of the array member currently traversed is therewith C, compared with the user's MAC address in message
It is identical, and the record of array member comes into force mark when being active states, its member record mark that comes into force is changed to the non-shape that comes into force
State；
The processing for switching to equally execute next array member C, until completing time to the last one array member
It goes through, i.e., the record of the identical array member mark that comes into force all is set as non-come into force in the user's MAC address and message of all records
State.Hereafter, it by uplink protocol massages and added identification information, is directly forwarded from upper united mouth.
As shown in fig. 7, CPU management can therefrom remove user's object when protocol package is issued to the upper united mouth of OLT from server
The identification informations such as position are managed, and obtained descending protocol message is transmitted to user by corresponding PON mouthfuls.Period, CPU management
The type of descending protocol message is judged, respective handling is carried out:
If X1, descending protocol message are accesses when denying message, according to the user's MAC address in the message from one-dimensional knot
First member of structure body array begins stepping through.Message, e.g. DHCP nack message etc. are denied in the access.
If the user's MAC address of the array member currently traversed is therewith Y, compared with the user's MAC address in message
It is identical, and the record of array member come into force mark be active states when, usage record user's MAC address replacement protocol package in
Ethernet broadcast target MAC (Media Access Control) address, and the chip id in usage record, No. PON and No. LLID, the descending protocol is arranged
Packet down forwards direction.Meanwhile the record of the array member found the mark that comes into force also is changed to non-active states.
And then switch to equally execute the operation for comparing user's MAC address in Y to next array member, until completing
To the traversal of the last one array member, i.e., the record of identical array member in the user's MAC address and message of all records
The mark that comes into force all is set as non-active states.
If X2, judged by CPU management, when descending protocol message is not that message is denied in access, according in the message
User's MAC address is begun stepping through from first member of one-dimentional structure body array；
Z1, meet array member claimed below once finding: 1) the user MAC in user MAC and message recorded
The identical array member in location, 2) chip record of the array member mark that comes into force is active states, 3) obtained by upper united mouth
ID number also with it is consistent in the record of array member, just use recorded user's MAC address to replace Ethernet in protocol package
Target MAC (Media Access Control) address is broadcasted, and the chip id in usage record, No. PON and No. LLID downlink that the descending protocol packet is set turn
Originating party to.
If Z2, until complete to the traversal of the last one array member after, still do not find while meeting 1) ~ 3) item
It is required that array member, then directly abandon the descending protocol message.
In conclusion passing through the circulation to upstream request packet in the method for processing forwarding of line identification message of the invention
Record and dynamic update, it is ensured that each request interaction packet processing of each user will not be covered because of user record, not downwards
Row forwarding and it is overtime, also ensure each user each upward position record be newest.To downlink by specified LLID and
Replacement broadcast purpose MAC, it is ensured that downlink responds user's Unique unicast of packet.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. a kind of method for processing forwarding of line identification message, which is characterized in that
When the OLT of EPON system is connected to the uplink protocol massages of user equipment to report, the CPU management of OLT is according to uplink agreement report
User information in text is newly-built or updates corresponding user record, to manage the target MAC (Media Access Control) address to match with the user information
And information is down forwarded, it is the one-dimentional structure body array of N*M, Lai Jilu uplink association that definition, which has array element number, in the OLT
Discuss the user information in message；Wherein, N is the protocol package quantity per second for reporting CPU management, and M is once completely interacted
The time-out time of journey；The attribute of array member includes to record come into force mark, chip ID number, PON slogan, No. LLID and user MAC
Address；
When OLT receives the descending protocol message that server issues, CPU management is searched recorded user's MAC address and downlink and is assisted
The consistent user record of destination-mac address in message is discussed, and the descending protocol message is forwarded to specified by user record
User equipment；When the target MAC (Media Access Control) address in downlink protocol massages is broadcast address, CPU management replaces the broadcast address
For the user's MAC address in user record, the unicast forwarding to designated user's equipment is realized.
2. the method for processing forwarding of line identification message as described in claim 1, which is characterized in that
Described down forwards information, includes chip ID number, PON slogan and No. LLID.
3. the method for processing forwarding of line identification message as described in claim 1, which is characterized in that
When the uplink protocol massages that CPU management judgement receives are disconnecting messages, according to the user in uplink protocol massages
MAC Address completes the traversal of logarithm group membership, searches consistent array in recorded user's MAC address and uplink protocol massages
Member comes into force the record of these array members found after mark is changed to non-active states from active states, by uplink agreement
Message and server is forwarded to the identification information that it is added.
4. the method for processing forwarding of line identification message as described in claim 1, which is characterized in that
There is also defined in OLT be initially 0 global variable K；
When the uplink protocol massages that CPU management judgement receives are not disconnecting messages, according to the use in uplink protocol massages
Family MAC Address traverses k-th member from first member of array, searches recorded user's MAC address and uplink agreement
Consistent array member in message；
It comes into force after mark is changed to non-active states from active states in the record for the array member that will be found, or is not finding
When corresponding array member, the record of array member K is come into force traffic sign placement for active states, according to uplink agreement by CPU management
User information in message updates the user record in array member K, and K numerical value is made to add one；Later, CPU management is by uplink agreement
Message and server is forwarded to the identification information that it is added.
5. the method for processing forwarding of line identification message as described in claim 3 or 4, which is characterized in that
The disconnecting message is PADT packet when OLT work is under PPPoE+ agreement；
The disconnecting message is DHCP release release message when OLT work is under DHCP Option82 agreement.
6. the method for processing forwarding of line identification message as described in claim 1, which is characterized in that
When the descending protocol message that CPU management judgement receives is that message is denied in access, according to the user in descending protocol message
MAC Address logarithm group membership traverses, and searches consistent in recorded user's MAC address and uplink protocol massages and record and gives birth to
Valid flag is the array member of active states；
For the array member found, is recorded the mark that comes into force and be changed to non-active states, CPU management is also by descending protocol message
In the user's MAC address replacement that is recorded with these arrays member of target MAC (Media Access Control) address after, cooperate recorded chip ID number,
PON slogan and No. LLID, the descending protocol message after the user equipment unicast forwarding removing identification information of Xiang Zhiding.
7. the method for processing forwarding of line identification message as described in claim 1, which is characterized in that
When the descending protocol message that CPU management judgement receives is not that message is denied in access, according to the use in descending protocol message
Family MAC Address logarithm group membership traverses, and searches in recorded user's MAC address and chip ID number and uplink protocol massages
Unanimously and record the array member that the mark that comes into force is active states；
For the array member found, CPU management is remembered the target MAC (Media Access Control) address in descending protocol message with these arrays member
After the user's MAC address replacement of record, the recorded chip ID number of cooperation, PON slogan and No. LLID, the user equipment list of Xiang Zhiding
Descending protocol message after broadcasting forwarding removing identification information；
If do not find corresponding array member after the completion of traversal, CPU management directly abandons descending protocol message.
8. the method for processing forwarding of line identification message as claimed in claims 6 or 7, which is characterized in that
The access denies that message is DHCP nack message when OLT work is under DHCP Option82 agreement.
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