CN103916489B - The many IP of a kind of single domain name domain name analytic method and system - Google Patents
The many IP of a kind of single domain name domain name analytic method and system Download PDFInfo
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- CN103916489B CN103916489B CN201410127377.3A CN201410127377A CN103916489B CN 103916489 B CN103916489 B CN 103916489B CN 201410127377 A CN201410127377 A CN 201410127377A CN 103916489 B CN103916489 B CN 103916489B
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Abstract
The present invention provides many IP of a kind of single domain name domain name analytic method and system, and methods described is：Client device selects the first IP address to send out registration request message to transcoding server and carries the ISP information belonging to the client device；Transcoding server judges whether first IP address is identical with the affiliated ISP of client device, if then generating route table items, and its outgoing interface is first interface；Otherwise temporary labels are added on route table items, the IP address of ISP identicals second belonging to lookup and client device simultaneously writes registration reply message；Whether in the buffer client device judges the second IP address, if then sending keep Alive Packet to transcoding server with the second IP address and carrying update labels；If transcoding server, which is parsed, carries update labels in keep Alive Packet, route table items are generated, outgoing interface therein is second interface.Present invention can assure that the picture quality of monitor video, improves the utilization rate of ISP network bandwidth.
Description
Technical field
The present invention relates to the domain name analytic method and system of communication technical field, more particularly to a kind of many IP of single domain name.
Background technology
With the fast development of the Video Supervision Technique and development of Mobile Internet technology of IP network, monitoring remote video gradually into
For the focus of monitoring trade, wherein conveniently moving the favor that remote terminal intelligent security guard is more exposed to people.For reality
The long-distance intelligent safety protection function of existing mobile terminal, it will usually install mobile monitor client software on mobile terminals.Due to prison
The code stream form of control data generally matches with Video Monitoring Terminal, and common client device is relatively stranded when reading data
Difficulty, therefore can add TS transcoding servers between client device and monitoring device, so as to client device, can obtain can
The data of reading.So, the domain name of TS transcoding servers would generally be set in client device, carried by each Internet service
The wireless network provided for business ISP initiates authentication registration to long-range TS transcoding servers.
Client device can typically access TS transcoding servers by the domain name of TS transcoding servers, wherein it is desired to DNS
Domain name resolution server is that client device carries out domain name mapping, i.e., the domain name mapping inputted client device is the domain name pair
The IP address answered, and then client device is accessed TS transcoding servers by the IP address.
As shown in figure 1, in the prior art, different ISP can provide different IP address for same domain name（It is assumed to be electricity
Believe net and mobile network）, in order to which the client device each contracted can utilize higher Netowrk tape in respective service network
Width, it is quick to access the corresponding TS transcoding servers of domain name.Dns server is not knowing which ISP the client devices belongs to
During network, it will usually which the corresponding all IP address of TS transcoding servers parsed are back to client device, then by visitor
Family end equipment selects one to initiate registration request message to TS transcoding servers from these IP address at random or in order.When
When the ISP network belonging to IP address that dns server domain name analysis system is returned is not client device affiliated ISP network, such as
Shown in Fig. 1, wherein client device uses communication network, but accesses TS transcoding servers using the mobile IP address provided,
Substantial amounts of loss of data and larger delay can be caused in transmitting procedure for the mode of this cross operator network so that figure
As Quality Down, live flower screen is caused when more serious and loses video data to cause poor Consumer's Experience effect.
The content of the invention
In view of this, the present invention provides many IP of a kind of single domain name domain name analytic method and system to realize client device
IP address corresponding with the outgoing interface in TS transcoding servers belongs to same ISP network, so that it is guaranteed that client device can be with
Obtain the preferable monitoring image of quality.
The present invention provides a kind of many IP of single domain name domain name analytic method, and methods described includes：
S1. the corresponding multiple IP of TS transcoding server domain names that client device is parsed in DNS name resolution server
In address, the first IP address is selected as the purpose IP that registration request message is sent out to TS transcoding servers according to preset rules
The ISP information belonging to the client device is carried in location, the registration request message；
S2. the TS transcoding servers receive the registration request message from the corresponding first interface of first IP address
When, judge whether the affiliated ISP of the first IP address is identical with the affiliated ISP of the client device, if so, being then generated to the visitor
Outgoing interface in the route table items of family end equipment, the route table items is the first interface；Otherwise should in arriving for the generation
Add temporary labels on the route table items of client device, and with searching with the IP of ISP identicals the 2nd belonging to client device
Location, the second IP address is write in registration reply message and is back to client device；
S3. the client device judge the second IP address in the registration reply message whether there is in itself
In DNS cache, if so, then sending keep Alive Packet, the keep-alive by purpose IP address of the second IP address to TS transcoding servers
Update labels are carried in message；
If S4. the TS transcoding servers parse and update labels are carried in the keep Alive Packet, generation is substituted
Outgoing interface in route table items with temporary labels, the route table items is the corresponding second interface of second IP address.
Based on same design, present invention also offers a kind of many IP of single domain name domain name analysis system, it is characterised in that
The system includes client device and TS transcoding servers, wherein：
The corresponding multiple IP address of TS transcoding server domain names that client device is parsed in DNS name resolution server
In, the first IP address is selected as the purpose IP address that registration request message is sent out to TS transcoding servers according to preset rules, should
The ISP information belonging to the client device is carried in registration request message；
The TS transcoding servers from the corresponding first interface of first IP address receive the registration request message when,
Judge whether the affiliated ISP of the first IP address is identical with the affiliated ISP of the client device, if so, being then generated to the client
Outgoing interface in the route table items of end equipment, the route table items is the first interface；Otherwise the visitor is arrived in the generation
Temporary labels, and lookup and the IP address of ISP identicals second belonging to client device are added on the route table items of family end equipment,
Second IP address is write in registration reply message and is back to client device；
It is slow in the DNS of itself that the client device judges that the second IP address in the registration reply message whether there is
In depositing, if so, then being sent by purpose IP address of the second IP address to TS transcoding servers in keep Alive Packet, the keep Alive Packet
Carry update labels；
If the TS transcoding servers parse and update labels are carried in the keep Alive Packet, generation replacement is carried
Outgoing interface in the route table items of temporary labels, the route table items is the corresponding second interface of second IP address.
Relative to prior art, the present invention makes TS transcoding servers by being made a distinction to the corresponding IP address of different ISP
The corresponding IP address of outgoing interface and client device belong to same ISP network, so as at utmost ensure monitor video
Picture quality, and effectively raise the utilization rate of ISP network bandwidth.
Brief description of the drawings
Fig. 1 is the domain name mapping schematic network structure of many IP of single domain name in the prior art a kind of；
Fig. 2 is a kind of domain name analytic method flow chart for many IP of single domain name that the present invention is provided；
Fig. 3 is the domain name mapping schematic network structure of many IP of single domain name in the embodiment of the present invention a kind of.
Embodiment
In order to solve the above problems, the present invention provides many IP of a kind of single domain name domain name analytic method and system to realize visitor
Family end and the corresponding IP address of TS transcoding server outgoing interfaces belong to same ISP network, so that it is guaranteed that what client was obtained
Monitoring image quality.
Fig. 2 is referred to, the present invention provides a kind of many IP of single domain name domain name analytic method, and methods described includes step：
101st, client device is in the corresponding multiple IP address of TS transcoding server domain names that dns server is parsed,
According to preset rules（At random or according to certain order）The first IP address is selected as to TS transcoding servers and sends out registration request report
The ISP information belonging to the client device is carried in the purpose IP address of text, the registration request message；
102nd, the TS transcoding servers receive the registration request from the corresponding first interface of first IP address
During message, judge whether the affiliated ISP of the first IP address is identical with the affiliated ISP of the client device, if so, then going to step
103；Otherwise 104 are gone to step；
103rd, when the affiliated ISP of the first IP address is identical with the affiliated ISP of the client device, TS transcoding servers
It is first IP address corresponding that outgoing interface in the route table items of the client device, the route table items, which can be generated to,
One interface；
104th, when the affiliated ISP of the first IP address is different from the affiliated ISP of the client device, TS transcoding servers
A temporary labels can be added on the route table items, and according to belonging to the client device carried in registration request message
Then second IP address is write and noted in itself lookup and the IP address of ISP identicals second belonging to client device by ISP information
Client device is back in volume response message；
105th, the client device judge the second IP address in the registration reply message whether there is in itself
In DNS cache, if so, then going to step 106；
106th, client device sends keep Alive Packet by purpose IP address of the second IP address to TS transcoding servers, described
Update labels are carried in keep Alive Packet；The update tag representations are updated to route table items；
If the 107, the TS transcoding servers parse and update labels are carried in the keep Alive Packet, generation is substituted
Route table items with temporary labels, the outgoing interface in route table items after the renewal is second IP address corresponding the
Two interfaces.
As can be seen here, the present invention is to the corresponding IP address of different ISP by making a distinction, and makes TS transcoding servers go out to connect
The corresponding IP address of mouth and client device belong to same ISP network, so as at utmost ensure the image of monitor video
Quality, and effectively raise the utilization rate of ISP network bandwidth.
In a preferred embodiment, whether the affiliated ISP of the first IP address and affiliated ISP of the client device is judged
Identical method is specially：
The client device adds itself affiliated ISP in the registration request message sent to TS transcoding servers
Corresponding mark value；The TS transcoding servers judge the mark value according to the mark value carried in the registration request message
Whether preset mark value corresponding with the affiliated ISP of the first IP address identical, if identical, illustrate the client device with
ISP belonging to first IP address is identical；Otherwise ISP is different.
It is worth noting that, client device receives the registration reply report of TS transcoding servers reply in the embodiment of the present invention
Text, and get after the second IP address carried in the message, the second IP address conduct can be directly selected in theory
The address of TS transcoding servers, it is contemplated that the problem of network security, in order to avoid there is attacker to pretend to be TS transcoding servers
The IP address is sent to the client device, some safety prevention measures are also carried out.In the preferred embodiment of the invention,
Because DNS cache has higher security and anti-caching pollution mechanism, therefore the client device can judge the registration
The second IP address in response message whether there is in the DNS cache of itself, if so, then by purpose IP of the second IP address
Location sends keep Alive Packet to TS transcoding servers.If the security of second IP address can be suspected not if, in order to not influence
Proper communication, it is that purpose IP address sends keep-alive to TS transcoding servers that the client device, which may proceed to using the first IP address,
Message, and hold labels will be carried in the keep Alive Packet, wherein hold represents to continue with the current route with temporary labels
List item.So, client device can avoid the attack that attacker pretends to be TS transcoding servers to cause, so as to improve access
Security.
In the preferred embodiment of the invention, also sent in the client device to TS transcoding servers and carry hold labels
Work message after（Also the ISP nets of now client device IP address ownership corresponding with TS transcoding server outgoing interfaces are just illustrated
Network is differed）, the client device can be periodically to the domain name mapping request report of dns server transmission TS transcoding servers
Text.If client device finds that the corresponding IP address of domain name that DNS is currently parsed includes second IP address, with second
IP address sends to TS transcoding servers as purpose IP address and update labels is carried in keep Alive Packet, the keep Alive Packet.
Client device periodically sends the domain name mapping request message of TS transcoding servers to dns server, just can in time by
The corresponding all IP address of TS transcoding server domain names are updated into DNS cache, to avoid the TS transcoding servers in DNS cache
IP address and dns server it is inconsistent.TS transcoding servers are received after the keep Alive Packet for carrying update labels, then are deleted
The route table items for the carrying temporary labels set up before, then regenerate a route table items, purpose IP address therein is
The IP address of the client, outgoing interface is the corresponding second interface of second IP address.So, client device is just
Knowing and information updating ability to the ISP network that newly adds is provided with, so as to improve the using effect of monitor client.
Present invention also offers a kind of domain name analysis system for the domain name analytic method for applying many IP of above-mentioned single domain name, due to
The handling process of the system domain name mapping is identical with methods described, and here is omitted.
With reference to Figure of description 3, with a specific embodiment, the present invention is described in detail.
Wherein, client device, dns server, TS transcoding servers and ISP network are included in the network structure, it is assumed that
Client device belongs to communication network, and dns server falls within communication network, has mobile and two ISP networks of telecommunications to turn for TS
Code server providing services.Assuming that TS transcoding servers are IPA in the outgoing interface A of communication network IP address, mark value is 0；
TS transcoding servers are IPB in the outgoing interface B of mobile network IP address, and mark value is 1.
Arrow 1 is exactly the request message for the TS transcoding server domain name mappings that client device is sent to dns server；
Dns server analyzes the corresponding IP address of domain name of TS transcoding servers according to the request message, then all sends out IPA and IPB
Client device is given, as shown in arrow 2.Client device is cached after receiving IPA and IPB, and picks out IPB works at random
For purpose IP address, and the mark value 0 of oneself is added in registration request message, the message is sent to TS transcoding services
Device, as shown in arrow 3.
TS transcoding servers receive the mark value judged after registration request message in message mark value corresponding with itself IPB
It is whether identical, due to client add mark value be 0, and the mark value of the corresponding ISP networks of IPB be 1, illustrate client with
IPB is not belonging to same ISP network, then generates the route table items for arriving client device, and outgoing interface therein is that IPB is corresponding
Interface B, and add temporary labels for the list item.Then TS transcoding servers can go to search belongs to same ISP with client device
The corresponding IP address of outgoing interface of network（IPA）, and IPA write-in registration reply messages will be issued client device, such as arrow 4
It is shown.
Client device is received after the registration reply message, IPA has been searched whether in itself DNS cache, due to client
IPA is cached before end equipment, therefore client device is using IPA as purpose IP address, and keep-alive report is sent to TS transcoding servers
Text, and the carrying update labels in the keep Alive Packet（The corresponding IP address of the outgoing interface of route table items is updated to by statement
IPA）, as shown in arrow 5.
TS transcoding servers are received after keep Alive Packet, and meeting, will be described with interim according to the update labels of keep Alive Packet
The route table items of label are deleted, and regenerate a route table items, wherein using the IP address of client device as purpose address, with
The corresponding interface A of IPA are outgoing interface, hereafter, and client device sends the guarantor with hold labels with IPA to TS transcoding servers
Message living, it is ensured that link is unimpeded.
As can be seen here, the present invention makes TS transcoding servers by adding different mark values to the corresponding IP address of different ISP
The corresponding IP address of outgoing interface and client device belong to same ISP network, so as at utmost ensure monitor video
Picture quality, and effectively raise the utilization rate of ISP network bandwidth.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements done etc. should be included within the scope of protection of the invention.
Claims (8)
1. many IP of a kind of single domain name domain name analytic method, it is characterised in that methods described includes：
S1. the corresponding multiple IP address of TS transcoding server domain names that client device is parsed in DNS name resolution server
In, the first IP address is selected as the purpose IP address that registration request message is sent out to TS transcoding servers according to preset rules, should
The ISP information belonging to the client device is carried in registration request message；
S2. the TS transcoding servers from the corresponding first interface of first IP address receive the registration request message when,
Judge whether the affiliated ISP of the first IP address is identical with the affiliated ISP of the client device, if so, being then generated to the client
Outgoing interface in the route table items of end equipment, the route table items is the first interface；Otherwise the visitor is arrived in the generation
Temporary labels, and lookup and the IP address of ISP identicals second belonging to client device are added on the route table items of family end equipment,
Second IP address is write in registration reply message and is back to client device；
S3. the client device judges that the second IP address in the registration reply message is delayed with the presence or absence of in the DNS of itself
In depositing, if so, then being sent by purpose IP address of the second IP address to TS transcoding servers in keep Alive Packet, the keep Alive Packet
Carry update labels；
If S4. the TS transcoding servers parse and update labels are carried in the keep Alive Packet, generation replacement is carried
Outgoing interface in the route table items of temporary labels, the route table items is the corresponding second interface of second IP address.
2. the method as described in claim 1, it is characterised in that judge the affiliated ISP of the first IP address and the client
Whether identical method includes the affiliated ISP of equipment：
The client device adds the corresponding mark values of itself affiliated ISP in the registration request message of transmission；
The TS transcoding servers judge the mark value and described the according to the mark value carried in the registration request message
Whether the corresponding preset mark values of the affiliated ISP of one IP address are identical, if so, the then client device and first IP address
Affiliated ISP is identical；Otherwise it is different.
3. the method as described in claim 1, it is characterised in that the step S3 also includes：
If client device judges that the second IP address in the registration reply message is not existed in the DNS cache of itself,
Sent by purpose IP address of the first IP address to TS transcoding servers and hold labels are carried in keep Alive Packet, the keep Alive Packet；
The step S4 also includes：
If carrying hold labels in the keep Alive Packet that TS transcoding servers are parsed, leave strip has the temporary labels
Route table items.
4. method as claimed in claim 3, it is characterised in that the step S3 also includes：
After the client device sends the keep Alive Packet with hold labels to TS transcoding servers, the client device
The domain name mapping request message of TS transcoding servers is periodically sent to dns server；
If client device finds that the corresponding IP address of domain name that currently parses of DNS includes second IP address, with the
Two IP address are that purpose IP address sends carrying update labels in keep Alive Packet, the keep Alive Packet to TS transcoding servers.
5. many IP of a kind of single domain name domain name analysis system, it is characterised in that the system includes client device and TS transcodings
Server, wherein：
Client device in the corresponding multiple IP address of TS transcoding server domain names that DNS name resolution server is parsed,
The first IP address is selected as the purpose IP address that registration request message is sent out to TS transcoding servers, the registration according to preset rules
The ISP information belonging to the client device is carried in request message；
The TS transcoding servers from the corresponding first interface of first IP address receive the registration request message when, judge
Whether the affiliated ISP of the first IP address is identical with the affiliated ISP of the client device, is set if so, being then generated to the client
Outgoing interface in standby route table items, the route table items is the first interface；Otherwise the client is arrived in the generation
Add temporary labels on the route table items of equipment, and search with the IP address of ISP identicals second belonging to client device, by the
Client device is back in two IP address write-in registration reply message；
The client device judges that the second IP address in the registration reply message whether there is in the DNS cache of itself
In, taken if so, then being sent by purpose IP address of the second IP address to TS transcoding servers in keep Alive Packet, the keep Alive Packet
Band update labels；
If the TS transcoding servers parse and update labels are carried in the keep Alive Packet, generation is substituted with interim
Outgoing interface in the route table items of label, the route table items is the corresponding second interface of second IP address.
6. system as claimed in claim 5, it is characterised in that judge the affiliated ISP of the first IP address and the client
Whether identical method includes the affiliated ISP of equipment：
The client device adds the corresponding mark values of itself affiliated ISP in the registration request message of transmission；
The TS transcoding servers judge the mark value and described the according to the mark value carried in the registration request message
Whether the corresponding preset mark values of the affiliated ISP of one IP address are identical, if so, the then client device and first IP address
Affiliated ISP is identical；Otherwise it is different.
7. system as claimed in claim 5, it is characterised in that the system is additionally operable to：
If client device judges that the second IP address in the registration reply message is not existed in the DNS cache of itself,
Sent by purpose IP address of the first IP address to TS transcoding servers and hold labels are carried in keep Alive Packet, the keep Alive Packet；
If carrying hold labels in the keep Alive Packet that TS transcoding servers are parsed, leave strip has the temporary labels
Route table items.
8. system as claimed in claim 7, it is characterised in that the client device is additionally operable to：
After the client device sends the keep Alive Packet with hold labels to TS transcoding servers, the client device
The domain name mapping request message of TS transcoding servers is periodically sent to dns server；
If client device finds that the corresponding IP address of domain name that currently parses of DNS includes second IP address, with the
Two IP address are that purpose IP address sends carrying update labels in keep Alive Packet, the keep Alive Packet to TS transcoding servers.
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| CN201410127377.3A CN103916489B (en) | 2014-03-31 | 2014-03-31 | The many IP of a kind of single domain name domain name analytic method and system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106789889B (en) * | 2016-11-22 | 2020-05-05 | 广州市诚毅科技软件开发有限公司 | Network monitoring method and device based on mesh structure |
| CN108173765B (en) * | 2017-12-28 | 2020-09-15 | 新华三技术有限公司 | Message forwarding method and device |
| CN111464449B (en) * | 2019-01-18 | 2022-07-12 | 广西民族大学 | Inter-domain flow localization exchange method |
| CN111970179B (en) * | 2020-07-24 | 2022-08-23 | 下一代互联网关键技术和评测北京市工程研究中心有限公司 | Networking access method and system based on IPv6 |
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| CN101895589A (en) * | 2010-07-26 | 2010-11-24 | 杭州华三通信技术有限公司 | Wide area network router and method for establishing routing table items therein |
| CN101909046A (en) * | 2009-11-17 | 2010-12-08 | 新奥特（北京）视频技术有限公司 | Multimedia transcoding server and multimedia transcoding system |
| CN102299969A (en) * | 2011-09-16 | 2011-12-28 | 北京新媒传信科技有限公司 | Web accessing method, layer seven switching equipment and service network |
| WO2012148335A1 (en) * | 2011-04-29 | 2012-11-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Automatic connection selection |
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|---|---|---|---|---|
| CN101909046A (en) * | 2009-11-17 | 2010-12-08 | 新奥特（北京）视频技术有限公司 | Multimedia transcoding server and multimedia transcoding system |
| CN101895589A (en) * | 2010-07-26 | 2010-11-24 | 杭州华三通信技术有限公司 | Wide area network router and method for establishing routing table items therein |
| WO2012148335A1 (en) * | 2011-04-29 | 2012-11-01 | Telefonaktiebolaget Lm Ericsson (Publ) | Automatic connection selection |
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