CN107770070A - A kind of method, apparatus and system of information transfer - Google Patents
A kind of method, apparatus and system of information transfer Download PDFInfo
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- CN107770070A CN107770070A CN201610685047.5A CN201610685047A CN107770070A CN 107770070 A CN107770070 A CN 107770070A CN 201610685047 A CN201610685047 A CN 201610685047A CN 107770070 A CN107770070 A CN 107770070A
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- information
- bier
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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]
- H04L45/507—Label distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
Abstract
The embodiment of the invention discloses a kind of method, apparatus and system of information transfer；This method can include：Receive the request message of request BIER information；BIER information is carried in the scaling option in dhcp message；The dhcp message of BIER Information expansion options is carried described in transmission.
Description
Technical field
The present invention relates to network technology, more particularly to a kind of method, apparatus and system of information transfer.
Background technology
BIER technologies are nearly 2 years in Internet engineering task force (IETF, the Internet Engineering
Task Force) multicasting technology that begins one's study.The unique bit forwarding road of node distribution one in each BIER domain
Identified (BFR-id, Bit-Forwarding Router Identifier) by device.It should be noted that node here can be with
It is BIER forwarding routers (BFR, BIER Forwarding Router), in addition to router, as long as support BIER letters
The equipment of breath forwarding can distribute unique BFR-id to be identified.
Under normal circumstances, BFR-id passes through<SI:XYZW>Format identification (FID), wherein, SI is set identifier (Set
Identifier), only when bit bit string length (BSL, BitStringLength) is not enough to all BIER nodes in identification field
When, it can just introduce SI；And XYZW is then identification bit position position (BitPosition), its length mark bit bit string length
BitStringLength。
For example, there are 5 nodes in the BIER domains, and when BSL is 5,5 nodes in BIER domains can be placed on same
In SI, i.e. SI corresponding to the BFR-1 that BFR-id is 1 is that 0, BitPosition is corresponding to the BFR-2 that 00001, BFR-id is 2
SI is that 0, BitPosition is 00010, by that analogy.And have 10 nodes in the BIER domains, and when BSL is 5, it is necessary to by this
10 nodes point are placed in 2 SI, there is 5 nodes in each SI.
As shown in figure 1, when multicast message (as illustrated with black arrow) reaches BFR-1, now BFR-1 turns as bit
Ingress router (BFIR, Bit-Forwarding Ingress Router) is sent out, can judge which subdomain sub- itself be under the jurisdiction of
Domain, then determine which bit forwarding egress router (BFERs, Bit-Forwarding Egress Router) needs
Want this flux of multicast.
For example, BFR-1, which gets BFR-2 and BFR-3, belongs to same subset Set Identifier, and it is required to the group
Flow is broadcast, then parses BFR-id corresponding to BFR-2 and BFR-3 to obtain SI, and by corresponding to BFR-2 and BFR-3
BitPosition is combined into bit bit string BitString 00110, and the bit bit string (00110) is encapsulated in into BIER messages
In head, bit is then packaged with according to bit position index forward table (BIFT, Bit Index Forwarding Table) forwarding
Bit string BitString is the multicast data message of 00110 BIER headings.
Currently, the BFR-id information (for example, SI information, BitPosition information) of BIER technologies needs, BSL information, son
The BIER information such as domain Sub-domain information are all manually to configure, and the autgmentability for causing BIER networks is bad.It is special
Be not when there is new BIER nodes to add or leave BIER networks, can not be automatic or when needing to plan BIER networks again
And dynamically BIER information is configured.
The content of the invention
In order to solve the above technical problems, the embodiment of the present invention it is expected to provide a kind of method, apparatus and system of information transfer,
The autgmentability of BIER networks is improved, BIER information can be configured automatically and dynamically.
The technical proposal of the invention is realized in this way：
In a first aspect, the embodiments of the invention provide a kind of method of information transfer, methods described is applied to DynamicHost
Configuration protocol DHCP server, methods described include：
Receive the request message of request BIER information；
BIER information is carried in the scaling option of dhcp message；
The dhcp message of BIER Information expansion options is carried described in transmission.
In such scheme, the BIER information includes：Set identifier information, bit location, sub-domain information, bit bit string
At least one of in length information；Or carry set identifier information, bit location information, sub-domain information, bit bit string length
Spend the corresponding identification information of at least one in information.
It is described to be used to ask BIER information when the Dynamic Host Configuration Protocol server is DHCPv4 servers in such scheme
Request message be carried in parameter request list the DHCPDISCOVER message of BIER information options, DHCPREQUEST message,
Or DHCPINFORM message；
Correspondingly, the dhcp message, is specifically included：
When the request message is the DHCPDISCOVER message, the dhcp message is the carrying BIER information
DHCPOFFER message；
When the request message is the DHCPREQUEST message or the DHCPINFORM message, the DHCP
Message is to carry the DHCPACK message of the BIER information.
It is described to be used to ask BIER information when the Dynamic Host Configuration Protocol server is DHCPv6 servers in such scheme
Request message be carried in options request option the DHCPDSOLICIT message of BIER information options, DHCPREQUEST message,
RENEW message, REBIND message, CONFIRM message or INFORMATION-REQUEST message；
Correspondingly, the dhcp message, is specifically included：
When the request message is without carrying rapid configuration in the DHCPDSOLICIT message and the request message
During the instruction of BIER information, the dhcp message is the DHCPADVERTISE message for carrying the BIER information；
When the request message is to carry rapid configuration BIER in the DHCPSOLICIT message and the request message
During the instruction of information, or when the request message is the DHCPREQUEST message, the RENEW message, the REBIND
When message, the CONFIRM message or the INFORMATION-REQUEST message, the dhcp message is described in carrying
The DHCPREPLY message of BIER information.
In such scheme, methods described also includes：
Receive releasing request message；Wherein, the releasing request message is used to ask the Dynamic Host Configuration Protocol server release to divide
The BIER information matched somebody with somebody.
In such scheme, methods described also includes：
Receive the DHCPDECLINE message for carrying the BIER information for occurring conflict；
Send the DHCPREPLY message for carrying new BIER information options.
In such scheme, when DHCP relay equipment between Dynamic Host Configuration Protocol server and dhcp client be present, the reception
For asking the request message of BIER information, specifically include：Receiving the BIER information that carries sent by DHCP relay equipment please
The RELAY-FORWARD message asked；
Correspondingly, the dhcp message of BIER Information expansion options is carried described in transmission, can specifically be included：
Structure carries the RELAY-REPLY information and sendings of BIER information options.
Second aspect, the embodiments of the invention provide a kind of method of information transfer, methods described is applied to DynamicHost
Configuration protocol DHCP client, methods described include：
Send the request message of request BIER information；
Receive the dhcp message for carrying BIER information options.
In such scheme, the BIER information can include：Set identifier information, bit location, sub-domain information, bit
At least one of in bit string length information；Or carry set identifier information, bit location information, sub-domain information, bit
The corresponding identification information of at least one in string length information.
It is described to be used to ask BIER information when the dhcp client is DHCPv4 servers in such scheme
Request message be carried in parameter request list the DHCPDISCOVER message of BIER messages options, DHCPREQUEST message,
Or DHCPINFORM message；
Correspondingly, the dhcp message, is specifically included：
When the request message is the DHCPDISCOVER message, the dhcp message is the carrying BIER information
DHCPOFFER message；
When the request message is the DHCPREQUEST message or the DHCPINFORM message, the DHCP
Message is to carry the DHCPACK message of the BIER information.
It is described to be used to ask BIER information when the dhcp client is DHCPv6 clients in such scheme
Request message be carried in options request option the DHCPSOLICIT message of BIER information options, DHCPREQUEST message,
RENEW message, REBIND message, CONFIRM message or INFORMATION-REQUEST message；
Correspondingly, the dhcp message, can specifically include：
When the request message is without carrying rapid configuration BIER letters in DHCPSOLICIT message and the request message
During the instruction of breath, the dhcp message is the DHCPADVERTISE message for carrying the BIER information；
When the request message is to carry rapid configuration BIER information in DHCPSOLICIT message and the request message
Instruction when, or when the request message is that DHCPREQUEST message, RENEW message, REBIND message, CONFIRM disappear
When breath or INFORMATION-REQUEST message, the dhcp message disappears to carry the DHCPREPLY of the BIER information
Breath.
In such scheme, methods described also includes：Releasing request message is sent to Dynamic Host Configuration Protocol server；Wherein, it is described to release
Request message is put to be used to ask the Dynamic Host Configuration Protocol server to discharge allocated BIER information.
In such scheme, methods described also includes：
Send the DHCPDECLINE message for carrying the BIER information for occurring conflict；
Receive the DHCPREPLY message for carrying new BIER information options.
It is described when DHCP relay equipment between the dhcp client and Dynamic Host Configuration Protocol server be present in such scheme
Method also includes：
The message for carrying BIER information requests is sent to the DHCP relay equipment；
Receive the REPLY message for carrying BIER information options that the DHCP relay equipment is sent.
The third aspect, the embodiments of the invention provide a kind of dynamic host configuration protocol DHCP server, the DHCP clothes
Business device includes：First receiving module, carrier module and the first sending module；Wherein,
First receiving module, for receiving the request message for being used for asking BIER information；
The carrier module, for BIER information to be carried in the scaling option of dhcp message；
First sending module, for sending the dhcp message for carrying BIER Information expansion options.
In such scheme, first receiving module, it is additionally operable to receive releasing request message；Wherein, the release please
Message is asked to be used to ask the Dynamic Host Configuration Protocol server to discharge allocated BIER information.
In such scheme, first receiving module, it is additionally operable to receive the BIER information for carrying and occurring conflict
DHCPDECLINE message；
First sending module, it is additionally operable to send the DHCPREPLY message for carrying new BIER information options.
It is described when DHCP relay equipment between the Dynamic Host Configuration Protocol server and dhcp client be present in such scheme
First receiving module, disappear for receiving the RELAY-FORWARD for carrying BIER information requests sent by DHCP relay equipment
Breath；
First sending module, the RELAY-REPLY information and sendings of BIER information options are carried for building.
In such scheme, the Dynamic Host Configuration Protocol server includes DHCPv4 servers, DHCPv6 servers or supports DHCP
The equipment of server capability.
Fourth aspect, the embodiments of the invention provide a kind of dynamic host configuration protocol DHCP client, the DHCP visitors
Family end includes：Second sending module and the second receiving module；Wherein,
Second sending module, for sending the request message of request BIER information；
Second receiving module, the dhcp message of BIER information options is carried for receiving.
In such scheme, second sending module, it is additionally operable to send releasing request message to Dynamic Host Configuration Protocol server；Its
In, the releasing request message is used to ask the Dynamic Host Configuration Protocol server to discharge allocated BIER information.
In such scheme, second sending module, it is additionally operable to send the BIER information for carrying and occurring conflict
DHCPDECLINE message；
Second receiving module, it is additionally operable to receive the DHCPREPLY message for carrying new BIER information options.
In such scheme, second sending module, it is additionally operable to carry BIER information to the transmission of DHCP relay equipment
The message of request；
Second receiving module, is additionally operable to receive that the DHCP relay equipment sends carries BIER information options
REPLY message.
In such scheme, the dhcp client includes DHCPv4 clients, DHCPv6 clients or supports DHCP
The equipment of client functionality.
5th aspect, the embodiments of the invention provide a kind of system of configuration BIER information, the system includes：Dynamic is main
Machine configuration protocol DHCP server and dhcp client；Wherein,
The Dynamic Host Configuration Protocol server, for receiving the request message of request BIER information；
BIER information is carried in the scaling option of dhcp message；
The dhcp message of BIER Information expansion options is carried described in transmission；
The dhcp client, for sending the request message of request BIER information；
Receive the dhcp message for carrying BIER information options.
The embodiments of the invention provide a kind of method, apparatus and system of information transfer, Dynamic Host Configuration Protocol server sends and carried
To dhcp client, DHCP's dhcp message of BIER information options that dhcp client reception carries BIER information options disappears
Breath, and dynamic configuration can be carried out according to the BIER information options.So that BIER information can dynamically send to
Dhcp client, the autgmentability of BIER networks is improved, BIER information can be configured automatically and dynamically.
Brief description of the drawings
Fig. 1 is to carry out the schematic flow sheet of multicast message forwarding in BIER domains in the prior art；
Fig. 2 is a kind of method flow schematic diagram of information transfer provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet of recovery BIER information provided in an embodiment of the present invention；
Fig. 4 is a kind of handling process schematic diagram of BIER information collisions provided in an embodiment of the present invention；
Fig. 5 is the method flow schematic diagram of another information transfer provided in an embodiment of the present invention；
Fig. 6 is the handling process schematic diagram of another BIER information collisions provided in an embodiment of the present invention；
Fig. 7 is the detailed interaction flow schematic diagram of the first specific implementation provided in an embodiment of the present invention；
Fig. 8 is the detailed interaction flow schematic diagram of second of specific implementation provided in an embodiment of the present invention；
Fig. 9 is a kind of message format schematic diagram of BIER information provided in an embodiment of the present invention；
Figure 10 is the detailed interaction flow schematic diagram of the third specific implementation provided in an embodiment of the present invention；
Figure 11 is the detailed interaction flow schematic diagram of the 4th kind of specific implementation provided in an embodiment of the present invention；
Figure 12 is the detailed interaction flow schematic diagram of the 5th kind of specific implementation provided in an embodiment of the present invention；
Figure 13 is the message format schematic diagram of another BIER information provided in an embodiment of the present invention；
Figure 14 is the detailed interaction flow schematic diagram of the 6th kind of specific implementation provided in an embodiment of the present invention；
Figure 15 is the detailed interaction flow schematic diagram of the 7th kind of specific implementation provided in an embodiment of the present invention；
Figure 16 is the detailed interaction flow schematic diagram of the 8th kind of specific implementation provided in an embodiment of the present invention；
Figure 17 is a kind of Dynamic Host Configuration Protocol server structural representation provided in an embodiment of the present invention；
Figure 18 is a kind of dhcp client structural representation provided in an embodiment of the present invention；
Figure 19 is a kind of system structure diagram of configuration BIER information provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
The basic thought of the embodiment of the present invention is：DHCP (DHCP, Dynamic Host
Configuration Protocol) server sends and carries the dhcp messages of BIER information options to dhcp client,
Dhcp client receives the dhcp message for carrying BIER information options, and can enter Mobile state according to the BIER information options
Configuration.So that BIER information can be dynamically sent to dhcp client, the autgmentability of BIER networks is improved, can be certainly
Move and dynamically BIER information is configured.
Based on above-mentioned basic thought, following examples of the present invention are proposed.
Embodiment one
Referring to Fig. 2, it illustrates a kind of method of information transfer provided in an embodiment of the present invention, this method can apply to
Dynamic Host Configuration Protocol server, this method can include：
S201：Receive the request message of request BIER information；
S202：BIER information is carried in the scaling option of dhcp message；
S203：Send the dhcp message for carrying BIER Information expansion options.
By the technical scheme shown in Fig. 2, Dynamic Host Configuration Protocol server sends out the dhcp message for carrying BIER information according to request
Requesting party is delivered to, so that BIER information can dynamically be issued to dhcp client, correspondingly, requesting party can be according to institute
The dhcp message received is automatic and dynamically BIER information is configured.
It should be noted that the Dynamic Host Configuration Protocol server can include DHCP fourth editions (DHCPv4, DHCP for IPv4)
Server, DHCP sixth versions sheet (DHCPv6, DHCP for IPv6) server or the equipment for supporting dhcp server functionality；
Correspondingly, the sender of request message can be corresponding DHCPv4 clients, DHCPv6 clients or support have DHCP objective
The equipment of family end function.
Exemplarily, the BIER information can include：Set identifier information, bit location, sub-domain information, bit bit string
At least one of in length information；Or carry set identifier information, bit location information, sub-domain information, bit bit string length
Spend the corresponding identification information of at least one in information.
Exemplarily, when Dynamic Host Configuration Protocol server is DHCPv4 servers, as automatic management equipment, DHCPv4 can be responded
Request message transmitted by client；Now, the request message for asking BIER information can be to be taken in parameter request list
DHCPDISCOVER message, DHCPREQUEST message or DHCPINFORM message with BIER information options.
During specific implementation, can DHCPDISCOVER message, DHCPREQUEST message or
OPTION_BIER choosings are carried in the parameter request list (PRL, Parameter Request List) of DHCPINFORM message
, need BIER information transmitted by request server for identifying.
Correspondingly, the dhcp message, can specifically include：
When request message is DHCPDISCOVER message, the dhcp message is the DHCPOFFER of carrying BIER information
Message；
When request message is DHCPREQUEST message or DHCPINFORM message, the dhcp message is carrying
The DHCPACK message of BIER information.
During specific implementation, carry in the DHCPOFFER message or DHCPACK message of BIER information and carry bag
The OPTION_BIER parameter informations of the information containing BIER.
Exemplarily, when Dynamic Host Configuration Protocol server is DHCPv6 servers, as automatic management equipment, DHCPv6 can be responded
Request message transmitted by client；Now, the request message for asking BIER information can be to be taken in options request option
DHCPSOLICIT message, DHCPREQUEST message, RENEW message, REBIND message with BIER information options or
CONFIRM message.
During specific implementation, can DHCPSOLICIT message, DHCPREQUEST message, RENEW message,
Options request option (ORO, Option in REBIND message, CONFIRM message or INFORMATION-REQUEST message
Request Option) in carry OPTION_BIER options, for identify need request server send BIER information.
Correspondingly, the dhcp message, can specifically include：
When request message is that rapid configuration BIER letters are not carried in DHCPDSOLICIT message and the request message
During the instruction of breath, the dhcp message is the DHCPADVERTISE message of carrying BIER information；
When request message is not carry rapid configuration BIER information in DHCPSOLICIT message and the request message
Instruction when, or when request message be DHCPREQUEST message, RENEW message, REBIND message, CONFIRM message or
Described in person during INFORMATION-REQUEST message, the dhcp message is the DHCPREPLY message of carrying BIER information.
During specific implementation, the DHCPADVERTISE message or DHCPREPLY message that carry BIER information carry
There are the OPTION_BIER parameter informations for including BIER information.
Above-mentioned example is directed to DHCP different editions, and BIER information is carried by dhcp message specific to corresponding version
Realize that the dynamic of BIER information issues.
Exemplarily, based on above-mentioned example, when needing to reclaim BIER information, this method can also include：Connect
Receive releasing request message；Wherein, the releasing request message is used to ask the Dynamic Host Configuration Protocol server to discharge allocated BIER letters
Breath.
Implementing above-mentioned example can be as shown in Figure 3：
S301：Receive the releasing request message sent by dhcp client；
Wherein, releasing request message is used to ask Dynamic Host Configuration Protocol server to discharge allocated BIER information；
Specifically, releasing request message can be that dhcp client should to Dynamic Host Configuration Protocol server, expression by RELEASE message
Dhcp client have left current BIER domains.
S302：For BIER information corresponding to releasing request message recovery；
Specifically, step S302 can include recovery BFR-id information (set identifier information and BitString information), BSL
Information, it is one or more in sub-domain information, and the state of corresponding BIER information is become into available available states.
It should be noted that when there is new dhcp client to add current BIER domains, Dynamic Host Configuration Protocol server can pass through
Recovered BIER information is handed down to new dhcp client by the technical scheme shown in Fig. 2, so as to improve BIER letters
Cease the utilization rate of resource.
Exemplarily, based on above-mentioned example, when the BIER information of Dynamic Host Configuration Protocol server distribution occurs conflicting constantly, referring to Fig. 4,
The scheme also includes：
S401：Receive the DHCPDECLINE message for carrying the BIER information for occurring conflict；
S402：Send the DHCPREPLY message for carrying new BIER information options.
Specifically, by taking BFR-id information as an example, carried in the DHCPDECLINE message transmitted by dhcp client
OPTION_BIER options, for indicating the BFR-id information to conflict occur.And Dynamic Host Configuration Protocol server still can redistributed newly
BIER information after, new BIER information is sent to dhcp client by aforementioned schemes.The present embodiment repeats no more to this.
Exemplarily, when DHCP relay equipment between Dynamic Host Configuration Protocol server and dhcp client be present, described receive is used for
The request message of BIER information is asked, is specifically included：Receive and carry BIER information requests by what DHCP relay equipment was sent
RELAY-FORWARD message；
Correspondingly, the dhcp message of BIER Information expansion options is carried described in transmission, can specifically be included：
Structure carries the RELAY-REPLY information and sendings of BIER information options.
During specific implementation, Dynamic Host Configuration Protocol server, which can be built, to be carried the RELAY-REPLY of OPTION_BIER parameters and disappears
Breath, and the RELAY-REPLY message is sent to DHCP relay equipment, so that trunking is from RELAY-REPLY message
In extract REPLY message after, be sent to dhcp client.
Present embodiments provide a kind of method of the information transfer applied to Dynamic Host Configuration Protocol server side, Dynamic Host Configuration Protocol server is according to please
Ask and send the dhcp message for carrying BIER information to dhcp client so that BIER information can dynamically send to
Dhcp client, correspondingly, requesting party can be automatic according to received dhcp message and dynamically entered according to BIER information
Row configuration.
Embodiment two
Based on previous embodiment identical technical concept, referring to Fig. 5, it illustrates a kind of letter provided in an embodiment of the present invention
The method of transmission is ceased, this method can apply to dhcp client, and this method can include：
S501：Send the request message of request BIER information；
S502：Receive the dhcp message for carrying BIER information options.
It is to be appreciated that after the dhcp message for carrying BIER options is received, dhcp client can be according to institute
State BIER information options and carry out dynamic configuration.
It should be noted that the dhcp client can include DHCPv4 clients, DHCPv6 clients or support
There is the equipment of dhcp client function；Correspondingly, the recipient of request message can correspond to DHCPv4 servers, DHCP v6
Server or the equipment for supporting dhcp server functionality.
Exemplarily, the BIER information can include：Set identifier information, bit location, sub-domain information, bit bit string
At least one of in length information；Or carry set identifier information, bit location information, sub-domain information, bit bit string length
Spend the corresponding identification information of at least one in information.
Exemplarily, when dhcp client is DHCPv4 clients, for asking the request message of BIER information can be with
For carried in parameter request list the DHCPDISCOVER message of BIER messages options, DHCPREQUEST message or
DHCPINFORM message.
During specific implementation, dhcp client can DHCPDISCOVER message, DHCPREQUEST message or
OPTION_BIER choosings are carried in the parameter request list (PRL, Parameter Request List) of person's DHCPINFORM message
, need request server to send BIER information for identifying.
Correspondingly, the dhcp message, can specifically include：
When request message is DHCPDISCOVER message, the dhcp message is the DHCPOFFER of carrying BIER information
Message；
When request message is DHCPREQUEST message or DHCPINFORM message, the dhcp message is carrying
The DHCPACK message of BIER information.
During specific implementation, carry in the DHCPOFFER message or DHCPACK message of BIER information and carry bag
The OPTION_BIER parameter informations of the information containing BIER.
Exemplarily, when dhcp client is DHCPv6 clients, for asking the request message of BIER information can be with
Disappear to carry the DHCPDSOLICIT message of BIER information options, DHCPREQUEST message, RENEW in options request option
Breath, REBIND message or CONFIRM message.
During specific implementation, dhcp client can DHCPDSOLICIT message, DHCPREQUEST message,
Options request option (ORO, Option Request in RENEW message, REBIND message or CONFIRM message
Option OPTION_BIER options are carried in), need request server to send BIER information for identifying.
Correspondingly, the dhcp message, can specifically include：
When request message is not have to carry rapid configuration BIER information in DHCPSOLICIT message and the request message
During instruction, the dhcp message is the DHCPADVERTISE message of carrying BIER information；
The finger of rapid configuration BIER information is carried in request message is DHCPSOLICIT message and the request message
When showing, or when request message be DHCPREQUEST message, RENEW message, REBIND message, CONFIRM message or
During INFORMATION-REQUEST message, the dhcp message is the DHCPREPLY message of carrying BIER information.
During specific implementation, the DHCPADVERTISE message or DHCPREPLY message that carry BIER information carry
There are the OPTION_BIER parameter informations for including BIER information.
Exemplarily, based on above-mentioned example, when needing to reclaim BIER information, referring to Fig. 5, this method can be with
Including：Releasing request message is sent to Dynamic Host Configuration Protocol server；Wherein, releasing request message is used to ask Dynamic Host Configuration Protocol server release to divide
The BIER information matched somebody with somebody.
Specifically, releasing request message can be that dhcp client should to Dynamic Host Configuration Protocol server, expression by RELEASE message
Dhcp client have left current BIER domains.Therefore, terminal, which sends releasing request message, to cause Dynamic Host Configuration Protocol server to be directed to
BIER information corresponding to the releasing request message recovery.
Exemplarily, based on above-mentioned example, when the BIER information of Dynamic Host Configuration Protocol server distribution occurs conflicting constantly, referring to Fig. 6,
Methods described also includes：
S601：Send the DHCPDECLINE message for carrying the BIER information for occurring conflict；
S602：Receive the DHCPREPLY message for carrying new BIER information options.
Specifically, by taking BFR-id information as an example, dhcp client finds that BFR-id information occurs by collision detection mechanism
During conflict, the DHCPDECLINE message for carrying OPTION_BIER options can be sent, for indicating the BFR- to conflict occur
Id information, so as to illustrate that the BFR-id information of distribution is unavailable to Dynamic Host Configuration Protocol server.
Exemplarily, when DHCP relay equipment between dhcp client and Dynamic Host Configuration Protocol server be present, methods described is also wrapped
Include：
Dhcp client sends the message for carrying BIER information requests to DHCP relay equipment；
Dhcp client receives the REPLY message for the carrying BIER information that DHCP relay equipment is sent.
Present embodiments provide a kind of method of the information transfer applied to dhcp client side, dhcp client pass through to
Dynamic Host Configuration Protocol server sends request to receive BIER information so that and BIER information can dynamically be issued to dhcp client, and
It can be configured automatically and dynamically according to BIER information.
Embodiment three
Based on above-mentioned two embodiment, the present embodiment by eight specifically implementation above-mentioned two embodiment is carried out
Describe in detail.
Specific implementation one:
Referring to Fig. 7, it illustrates the detailed interaction flow of the first specific implementation provided in an embodiment of the present invention；
In the flow, BIER nodes can be used as DHCPv4 clients, and the flow can include：
S701：When DHCPv4 clients find to need BIER configuration informations, carried in the PRL of DHCPDISCOVER message
OPTION_BIER options；
S702：DHCPDISCOVER message is sent to DHCPv4 servers by DHCPv4 clients；
S703：DHCPv4 servers receive the DHCPDISCOVER message that OPTION_BIER options are carried in PRL
Afterwards, according to local policy decide whether to handle and respond the message.If processing, goes to S704；
S704：DHCPv4 servers give the DHCPOFFER message for carrying OPTION_BIER parameter informations to transmission DHCPv4
Client；
S705：DHCPv4 clients receive come from the DHCPOFFER message of server after, disappear in DHCPREQUEST
OPTION_BIER options are carried in the PRL of breath；
S706：DHCPREQUEST message is sent to DHCPv4 servers by DHCPv4 clients；
S707：After DHCPv4 servers receive the DHCPREQUEST message that OPTION_BIER options are carried in PRL,
Decide whether to handle according to local policy and respond the message.If processing, goes to S708；
S708：The DHCPACK message for carrying OPTION_BIER parameter informations is sent to DHCPv4 visitors by DHCPv4 servers
Family end.
This specific implementation is to be known that initial stage itself to need BIER information in DHCPv4 interacting messages in client
In the case of, for the interaction flow of BIER information.
Specific implementation two:
If after 4 message interaction process shown in Fig. 7, DHCPv4 clients just represent itself to need OPTION_
BIER Option information, referring to Fig. 8, the detailed interaction flow of second of specific implementation provided in an embodiment of the present invention can
With including：
S801：DHCPv4 clients carry OPTION_BIER options in the PRL of DHCPINFORM message；
S802：DHCPINFORM message is sent to DHCPv4 servers by DHCPv4 clients；
S803：After DHCPv4 servers receive the DHCPINFORM message that OPTION_BIER options are carried in PRL,
Decide whether to handle according to local policy and respond the message.If processing, goes to S804；
S804：DHCPv4 servers send the DHCPACK message for carrying OPTION_BIER parameter informations to DHCPv4 client
End.
It is to be directed to the specific implementation that BIER information configurations are carried out between DHCPv4 server and client sides for above-mentioned two
Solution processes carry BIER information, it is necessary to explanation by DHCPv4 message, extending the option of DHCPv4 agreements
Message format can be with as shown in figure 9, wherein, BIER information be that (specific form is set identifier information to BFR-id information：Bit position
Confidence ceases), sub-domain information is one or more in bit bit string length information, or BIER information is to carry BFR-id letters
Cease (set identifier information：Bit location information), sub-domain information, one or more marks letters in bit bit string length information
Breath, such as mark BIER nodes carry set identifier information：The MAC Address mark of bit location information.
Specific implementation three:
Referring to Figure 10, it illustrates the detailed interaction flow of the third specific implementation provided in an embodiment of the present invention；
In the flow, BIER nodes can be used as DHCPv6 clients, and the flow can include：
S1001：When DHCPv6 clients find to need rapidly to configure BIER information, in the ORO of DHCPSOLICIT message
Middle carrying OPTION_BIER options, and Rapid Commit options are carried in DHCPSOLICIT message；
S1002：DHCPSOLICIT message is sent to DHCPv6 servers by DHCPv6 clients；
S1003：DHCPv6 servers, which receive, to be carried OPTION_BIER options and carries Rapid in ORO
After the DHCPSOLICIT message of Commit options, decide whether to handle according to local policy and respond the message.If processing,
Then go to S1004；
S1004：DHCPv6 servers send the DHCPREPLY message for carrying OPTION_BIER parameter informations to DHCPv6
Client.
Specific implementation four:
Referring to Figure 11, it illustrates the detailed interaction flow of the 4th kind of specific implementation provided in an embodiment of the present invention；
In the flow, BIER nodes can be used as DHCPv6 clients, and the flow can include：
S1101：DHCPv6 clients are found after needing to configure BIER information, are carried in the ORO of DHCPSOLICIT message
OPTION_BIER options；
S1102：DHCPSOLICIT message is sent to DHCPv6 servers by DHCPv6 clients；
S1103：DHCPv6 servers receive the DHCPSOLICIT message that OPTION_BIER options are carried in ORO
Afterwards, according to local policy decide whether to handle and respond the message.If processing, goes to S1104；
S1104：DHCPv6 servers send carry OPTION_BIER parameter informations DHCPADVERTISE message to
DHCPv6 clients；
S1105：DHCPv6 clients receive come from the DHCPADVERTISE message of server after,
OPTION_BIER options are carried in the ORO of DHCPREQUEST message；
S1106：DHCPREQUEST message is sent to DHCPv6 servers by DHCPv6 clients；
S1107：DHCPv6 servers receive the DHCPREQUEST message that OPTION_BIER options are carried in ORO
Afterwards, according to local policy decide whether to handle and respond the message.If processing, goes to S1108；
S1108：DHCPv6 servers send the DHCPREPLY message for carrying OPTION_BIER parameter informations to DHCPv6
Client.
This specific implementation is to be known that initial stage itself to need BIER information in DHCPv6 interacting messages in client
In the case of, for the interaction flow of BIER information.
Specific implementation five：
If after 4 message interaction process shown in Figure 11, DHCPv6 clients just represent itself to need OPTION_
BIER option informations, referring to Figure 12, the detailed interaction flow of the 5th kind of specific implementation provided in an embodiment of the present invention can be with
Including：
S1201：DHCPv6 clients carry OPTION_BIER choosings in the ORO of INFORMATION-REQUEST message
；
S1202：INFORMATION-REQUEST message is sent to DHCPv6 servers by DHCPv6 clients；
S1203：DHCPv6 servers receive the INFORMATION- that OPTION_BIER options are carried in ORO
After REQUEST message, decide whether to handle according to local policy and respond the message.If processing, goes to S1204；
S1204：DHCPv6 servers send the DHCPREPLY message for carrying OPTION_BIER parameter informations to DHCPv6
Client.
The specific implementation side that BIER information configurations are carried out between DHCPv6 server and client sides is directed to for above three
Case process carries disappearing for BIER information, it is necessary to explanation by DHCPv6 message, extending the option of DHCPv6 agreements
Ceasing form can be as shown in figure 13, wherein, BIER information is that (specific form is set identifier information to BFR-id information：Bit position
Confidence ceases), sub-domain information is one or more in bit bit string length information, or BIER information is to carry BFR-id letters
Cease (set identifier information：Bit location information), sub-domain information, one or more marks letters in bit bit string length information
Breath, such as mark BIER nodes carry set identifier information：The MAC Address mark of bit location information.
Specific implementation six：
Referring to Figure 14, it illustrates the detailed interaction flow of the 6th kind of specific implementation provided in an embodiment of the present invention；
The workflow user illustrates the process reclaimed for BIER information, when BIER nodes 1 to BIER nodes 6 are completed in BIER domains
The dynamic configuration of BIER information, by taking BIER nodes 6 as an example, the flow can include：
S1401：BIER nodes 6 send DHCPv4/DHCPv6RELEASE message to Dynamic Host Configuration Protocol server；
Wherein, RELEASE message can represent that BIER nodes 6 have left the BIER domains, and the release of request Dynamic Host Configuration Protocol server is
The allocated BIER information.
S1402：Indicated BIER information to be released in Dynamic Host Configuration Protocol server recovery RELEASE message,
Specifically, BIER information includes BFR-id information (set identifier information and BitString information), BSL information, subdomain
It is one or more in information, and the state of the BIER information is become into available.
S1403：When having new BIER nodes 7 to access the BIER domains and asking BIER information, Dynamic Host Configuration Protocol server can incite somebody to action
The BIER information reclaimed in step S1402 is dynamically assigned to the BIER nodes 7 again.
It should be noted that the DHCP protocol described in this specific implementation refers to DHCPv4 or DHCPv6.
Can be by said process, on the basis of the dynamically distributes of BIER information are realized, and can improves BIER information resources
Utilization rate.
Specific implementation seven：
Referring to Figure 15, it illustrates the detailed interaction flow of the 7th kind of specific implementation provided in an embodiment of the present invention；
The processing procedure when flow is used to illustrate to conflict for BIER information, when in BIER domains BIER nodes 1 to BIER nodes 6
The dynamic configuration of BIER information is completed, by taking BIER nodes 6 and BFR-id information as an example, the flow can include：
S1501：BIER nodes 6 find BFR-id information and distribution of the server-assignment to itself by collision detection mechanism
When the BFR-id information distributed to BIER nodes 1 has conflict, the DHCPDECLINE that transmission carries OPTION_BIER options disappears
Cease to Dynamic Host Configuration Protocol server；
It is to be appreciated that DHCPDECLINE message can notify that the BFR-id that server is distributed is unavailable.
S1502：After Dynamic Host Configuration Protocol server receives DHCPDECLINE message, new BFR-id information can be redistributed to BIER
Node 6.
It should be noted that the DHCP protocol described in this specific implementation refers to DHCPv4 or DHCPv6.
Collision detection mechanism on the basis of the dynamically distributes of BIER information are realized, can be additionally provided by said process,
Realize the reasonable distribution of BIER information.
Specific implementation eight：
Referring to Figure 16, it illustrates the detailed interaction flow of the 8th kind of specific implementation provided in an embodiment of the present invention；
The flow is used for the interaction for illustrating BIER information during DHCP relay equipment, and the flow can include：
S1601：Dhcp client sends the request message with OPTION_BIER parameters to DHCP relay equipment；
S1602：Request message with OPTION_BIER parameters is encapsulated in RELAY-FORWARD by DHCP relay equipment
In message；
S1603：RELAY-FORWARD message is sent to Dynamic Host Configuration Protocol server by DHCP relay equipment；
S1604：Dynamic Host Configuration Protocol server structure carries the RELAY-REPLY message of OPTION_BIER parameters；, and by RELAY-
REPLY message is sent to DHCP relay equipment；
S1605：DHCP relay equipment extracts REPLY message from RELAY-REPLY message, and REPLY message is sent out
Deliver to dhcp client.
Example IV
Based on previous embodiment identical technical concept, referring to Figure 17, it illustrates one kind provided in an embodiment of the present invention
Dynamic Host Configuration Protocol server 170, the Dynamic Host Configuration Protocol server 170 include：First receiving module 1701, carrier module 1702 and first send mould
Block 1703；Wherein,
First receiving module 1701, for receiving the request message for being used for asking BIER information；
The carrier module 1702, for BIER information to be carried in the scaling option of dhcp message；
First sending module 1703, for sending the dhcp message for carrying BIER Information expansion options.
In such scheme, first receiving module 1701, it is additionally operable to receive releasing request message；Wherein, it is described to release
Request message is put to be used to ask the Dynamic Host Configuration Protocol server 170 to discharge allocated BIER information.
In such scheme, first receiving module 1701, it is additionally operable to receive the BIER information for carrying and occurring conflict
DHCPDECLINE message；
First sending module 1703, it is additionally operable to send the DHCPREPLY message for carrying new BIER information options.
In such scheme, when DHCP relay equipment be present between the Dynamic Host Configuration Protocol server 170 and dhcp client, institute
The first receiving module 1701 is stated, for receiving the RELAY- for carrying BIER information requests sent by DHCP relay equipment
FORWARD message；
First sending module 1703, the RELAY-REPLY message that BIER information options are carried for building are concurrent
Send.
Embodiment five
Based on previous embodiment identical technical concept, referring to Figure 18, it illustrates one kind provided in an embodiment of the present invention
Dhcp client 180, dhcp client 180 include：Second sending module 1801 and the second receiving module 1802；Wherein,
Second sending module 1801, for sending the request message of request BIER information；
Second receiving module 1802, the dhcp message of BIER information options is carried for receiving.
In such scheme, second sending module 1801, it is additionally operable to send releasing request message to Dynamic Host Configuration Protocol server；
Wherein, the releasing request message is used to ask the Dynamic Host Configuration Protocol server to discharge allocated BIER information.
In such scheme, second sending module 1801, it is additionally operable to send the BIER information for carrying and occurring conflict
DHCPDECLINE message；
Second receiving module 1802, it is additionally operable to receive the DHCPREPLY message for carrying new BIER information options.
In such scheme, second sending module 1801, it is additionally operable to carry BIER to the transmission of DHCP relay equipment
The message of information request；
Second receiving module 1802, it is additionally operable to receive the carrying BIER information that the DHCP relay equipment is sent
DHCPREPLY message.
Embodiment six
Based on previous embodiment identical technical concept, referring to Figure 19, it illustrates one kind provided in an embodiment of the present invention
The system 190 of BIER information is configured, the system 190 includes：Dynamic host configuration protocol DHCP server 170 and DHCP client
End 180；Wherein,
The Dynamic Host Configuration Protocol server 170, for receiving the request message of request BIER information；
BIER information is carried in the scaling option of dhcp message；
The dhcp message of BIER Information expansion options is carried described in transmission；
The dhcp client 180, for sending the request message of request BIER information；
Receive the dhcp message for carrying BIER information options.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the shape of the embodiment in terms of the present invention can use hardware embodiment, software implementation or combination software and hardware
Formula.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more to use storage
The form for the computer program product that medium is implemented on (including but is not limited to magnetic disk storage and optical memory etc.).
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (25)
- A kind of 1. method of information transfer, it is characterised in that methods described is applied to dynamic host configuration protocol DHCP server, Methods described includes：Receive the request message of request BIER information；BIER information is carried in the scaling option of dhcp message；The dhcp message of BIER Information expansion options is carried described in transmission.
- 2. according to the method for claim 1, it is characterised in that the BIER information includes：Set identifier information, bit position Put, in sub-domain information, bit bit string length information at least one of；Or carry set identifier information, bit location letter The corresponding identification information of at least one in breath, sub-domain information, bit bit string length information.
- 3. according to the method for claim 1, it is characterised in that when the Dynamic Host Configuration Protocol server is DHCPv4 servers, institute It is that the DHCPDISCOVER of BIER information options is carried in parameter request list to state for asking the request message of BIER information Message, DHCPREQUEST message or DHCPINFORM message；Correspondingly, the dhcp message, is specifically included：When the request message is the DHCPDISCOVER message, the dhcp message is the carrying BIER information DHCPOFFER message；When the request message is the DHCPREQUEST message or the DHCPINFORM message, the dhcp message To carry the DHCPACK message of the BIER information.
- 4. according to the method for claim 1, it is characterised in that when the Dynamic Host Configuration Protocol server is DHCPv6 servers, institute It is that the DHCPDSOLICIT of BIER information options is carried in options request option to state for asking the request message of BIER information Message, DHCPREQUEST message, RENEW message, REBIND message, CONFIRM message or INFORMATION-REQUEST Message；Correspondingly, the dhcp message, is specifically included：When the request message is without carrying rapid configuration BIER in the DHCPDSOLICIT message and the request message During the instruction of information, the dhcp message is the DHCPADVERTISE message for carrying the BIER information；When the request message is to carry rapid configuration BIER information in the DHCPSOLICIT message and the request message Instruction when, or when the request message is that the DHCPREQUEST message, the RENEW message, the REBIND disappear When breath, the CONFIRM message or the INFORMATION-REQUEST message, the dhcp message is described in carrying The DHCPREPLY message of BIER information.
- 5. according to the method for claim 1, it is characterised in that methods described also includes：Receive releasing request message；Wherein, the releasing request message is used to ask the Dynamic Host Configuration Protocol server release allocated BIER information.
- 6. according to the method for claim 1, it is characterised in that methods described also includes：Receive the DHCPDECLINE message for carrying the BIER information for occurring conflict；Send the DHCPREPLY message for carrying new BIER information options.
- 7. according to the method for claim 1, it is characterised in that when DHCP between Dynamic Host Configuration Protocol server and dhcp client being present During trunking, the request message received for asking BIER information, specifically include：Reception is sent by DHCP relay equipment The RELAY-FORWARD message for carrying BIER information requests；Correspondingly, the dhcp message of BIER Information expansion options is carried described in transmission, can specifically be included：Structure carries the RELAY-REPLY information and sendings of BIER information options.
- A kind of 8. method of information transfer, it is characterised in that methods described is applied to dynamic host configuration protocol DHCP client, Methods described includes：Send the request message of request BIER information；Receive the dhcp message for carrying BIER information options.
- 9. according to the method for claim 8, it is characterised in that the BIER information can include：Set identifier information, bit At least one of in position position, sub-domain information, bit bit string length information；Or carry set identifier information, bit location The corresponding identification information of at least one in information, sub-domain information, bit bit string length information.
- 10. according to the method for claim 8, it is characterised in that when the dhcp client is DHCPv4 servers, institute It is that the DHCPDISCOVER of BIER messages options is carried in parameter request list to state for asking the request message of BIER information Message, DHCPREQUEST message or DHCPINFORM message；Correspondingly, the dhcp message, is specifically included：When the request message is the DHCPDISCOVER message, the dhcp message is the carrying BIER information DHCPOFFER message；When the request message is the DHCPREQUEST message or the DHCPINFORM message, the dhcp message To carry the DHCPACK message of the BIER information.
- 11. according to the method for claim 8, it is characterised in that when the dhcp client is DHCPv6 clients, institute It is that the DHCPSOLICIT that BIER information options are carried in options request option disappears to state for asking the request message of BIER information Breath, DHCPREQUEST message, RENEW message, REBIND message, CONFIRM message or INFORMATION-REQUEST disappear Breath；Correspondingly, the dhcp message, can specifically include：When the request message is not have to carry rapid configuration BIER information in DHCPSOLICIT message and the request message During instruction, the dhcp message is the DHCPADVERTISE message for carrying the BIER information；The finger of rapid configuration BIER information is carried in the request message is DHCPSOLICIT message and the request message When showing, or when the request message be DHCPREQUEST message, RENEW message, REBIND message, CONFIRM message or During person's INFORMATION-REQUEST message, the dhcp message is the DHCPREPLY message for carrying the BIER information.
- 12. according to the method for claim 8, it is characterised in that methods described also includes：Send and discharge to Dynamic Host Configuration Protocol server Request message；Wherein, the releasing request message is used to ask the Dynamic Host Configuration Protocol server to discharge allocated BIER information.
- 13. according to the method for claim 8, it is characterised in that methods described also includes：Send the DHCPDECLINE message for carrying the BIER information for occurring conflict；Receive the DHCPREPLY message for carrying new BIER information options.
- 14. according to the method described in claim requirement 8, it is characterised in that when the dhcp client and Dynamic Host Configuration Protocol server it Between when DHCP relay equipment be present, methods described also includes：The message for carrying BIER information requests is sent to the DHCP relay equipment；Receive the REPLY message for carrying BIER information options that the DHCP relay equipment is sent.
- 15. a kind of dynamic host configuration protocol DHCP server, it is characterised in that the Dynamic Host Configuration Protocol server includes：First receives Module, carrier module and the first sending module；Wherein,First receiving module, for receiving the request message for being used for asking BIER information；The carrier module, for BIER information to be carried in the scaling option of dhcp message；First sending module, for sending the dhcp message for carrying BIER Information expansion options.
- 16. Dynamic Host Configuration Protocol server according to claim 15, it is characterised in that first receiving module, be additionally operable to receive Releasing request message；Wherein, the releasing request message is used to ask the Dynamic Host Configuration Protocol server to discharge allocated BIER information.
- 17. Dynamic Host Configuration Protocol server according to claim 15, it is characterised in that first receiving module, be additionally operable to receive Carry the DHCPDECLINE message for the BIER information for occurring conflict；First sending module, it is additionally operable to send the DHCPREPLY message for carrying new BIER information options.
- 18. Dynamic Host Configuration Protocol server according to claim 15, it is characterised in that when the Dynamic Host Configuration Protocol server and dhcp client Between when DHCP relay equipment be present, first receiving module, carried for receiving by what DHCP relay equipment was sent The RELAY-FORWARD message of BIER information requests；First sending module, the RELAY-REPLY information and sendings of BIER information options are carried for building.
- 19. Dynamic Host Configuration Protocol server according to claim 15, it is characterised in that the Dynamic Host Configuration Protocol server services including DHCPv4 Device, DHCPv6 servers or the equipment for supporting dhcp server functionality.
- 20. a kind of dynamic host configuration protocol DHCP client, it is characterised in that the dhcp client includes：Second sends Module and the second receiving module；Wherein,Second sending module, for sending the request message of request BIER information；Second receiving module, the dhcp message of BIER information options is carried for receiving.
- 21. dhcp client according to claim 20, it is characterised in that second sending module, be additionally operable to Dynamic Host Configuration Protocol server sends releasing request message；Wherein, the releasing request message is used to ask the Dynamic Host Configuration Protocol server release The BIER information of distribution.
- 22. dhcp client according to claim 20, it is characterised in that second sending module, be additionally operable to send Carry the DHCPDECLINE message for the BIER information for occurring conflict；Second receiving module, it is additionally operable to receive the DHCPREPLY message for carrying new BIER information options.
- 23. dhcp client according to claim 20, it is characterised in thatSecond sending module, it is additionally operable to send the message for carrying BIER information requests to DHCP relay equipment；Second receiving module, is additionally operable to receive that the DHCP relay equipment sends carries BIER information options REPLY message.
- 24. dhcp client according to claim 20, it is characterised in that the dhcp client includes DHCPv4 client End, DHCPv6 clients or the equipment for supporting dhcp client function.
- 25. a kind of system of configuration BIER information, it is characterised in that the system includes：Dynamic host configuration protocol DHCP takes Business device and dhcp client；Wherein,The Dynamic Host Configuration Protocol server, for receiving the request message of request BIER information；BIER information is carried in the scaling option of dhcp message；The dhcp message of BIER Information expansion options is carried described in transmission；The dhcp client, for sending the request message of request BIER information；Receive the dhcp message for carrying BIER information options.
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|---|---|
| CN107770070B (en) | 2022-07-08 |
| WO2018033113A1 (en) | 2018-02-22 |
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