CN104468280B - The method that standby upper down status rapid detection is hung under realizing in intelligent gateway - Google Patents
The method that standby upper down status rapid detection is hung under realizing in intelligent gateway Download PDFInfo
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- CN104468280B CN104468280B CN201410809500.XA CN201410809500A CN104468280B CN 104468280 B CN104468280 B CN 104468280B CN 201410809500 A CN201410809500 A CN 201410809500A CN 104468280 B CN104468280 B CN 104468280B
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Abstract
The present invention relates to a kind of method that standby upper down status rapid detection is hung under realize in intelligent gateway, and be connected simultaneously monitored link layer data bag after starting including application layer finger daemon with the forwarding database based on kernel；Described application layer finger daemon is notified when the entry of forwarding database based on kernel changes；Described application layer finger daemon is changed items for information and changed in online list database in facility information corresponding to entry；Described application layer finger daemon initiates detection and according to whether receiving link layer data bag corresponding to equipment judges whether equipment is online to corresponding equipment.The method that standby upper down status rapid detection is hung under being realized using this kind in intelligent gateway, fast and accurately identify equipment for surfing the net current state, on the one hand the efficiency of application layer inquiry gateway equipment for surfing the net can be improved, on the other hand also solve the problems, such as that DHCP protocol can not identify static IP device, there is wider application.
Description
Technical field
The present invention relates to network equipment application process technical field, more particularly to intelligent gateway application process technical field,
A kind of method for specifically referring to hang standby upper down status rapid detection under realize in intelligent gateway.
Background technology
As the progressively development of the concepts such as smart home, intelligent gateway is with ripe, Related product also steps into people's
Life, some functions of conventional gateway can not meet intelligentized demand, it is impossible to be brought convenience to user, effective experience.This is specially
The content that profit is related to is the improvement to traditional function, is allowed to more quick, effectively with intellectuality.Conventional gateway is to LAN
Offline record mainly uses DHCP (Dynamic Host on (Local Area Network, LAN) side apparatus
Configuration Protocol, DHCP) respectively core A RP (Address are inquired about in combination to agreement
Resolution Protocol, address resolution protocol) list item realizes, it is exactly passive query the defects of the method, needs every time
When obtaining relevant information, just inquired about, efficiency comparison is low.And because ARP has cache-time, after equipment off-line, meeting
The buffer time of clock in a measure, the detection for causing gateway offline to equipment for surfing the net are less sensitive.
The content of the invention
The purpose of the present invention is the shortcomings that overcoming above-mentioned prior art, there is provided one kind, which can be realized, rapidly and accurately to be known
Other equipment for surfing the net current state, solve the problems, such as that DHCP protocol can not identify static IP device, have broader applications scope
The method that standby upper down status rapid detection is hung under realizing in intelligent gateway.
To achieve these goals, it is of the invention realize in intelligent gateway under hang the side of standby upper down status rapid detection
Method has following form：
This hangs the method for standby upper down status rapid detection under realizing in intelligent gateway, it is mainly characterized by, described
Method comprises the following steps：
The method that standby upper down status rapid detection is hung under realizing in intelligent gateway, it is characterised in that described method
Comprise the following steps：
(1) be connected simultaneously monitored link layer data after the startup of application layer finger daemon with the forwarding database based on kernel
Bag；
(2) notice described application layer finger daemon when the entry of the forwarding database based on kernel changes；
(3) the application layer finger daemon described in is changed items for information and changed in online list database corresponding to entry
Facility information；
(4) the application layer finger daemon described in initiates detection and according to whether receiving corresponding to equipment to corresponding equipment
Link layer data bag judges whether equipment is online.
It is preferred that described application layer is notified to guard when the entry of the forwarding database based on kernel changes
Process, it is specially：
Notified when the entry of forwarding database based on kernel changes by way of NETLINK sockets described
Application layer finger daemon.
It is preferred that described application layer finger daemon modification items for information and the modification entry pair in online list database
The facility information answered, comprises the following steps：
Application layer finger daemon described in (3-1) judges that entry changes state in forwarding database, if addition entry,
Then continue step (3-2), if deleting entry, then continue step (3-3)；
Application layer finger daemon described in (3-2) adds items for information and set in online list database corresponding to addition
It is standby, then proceed to step (4)；
Application layer finger daemon described in (3-3) is deleted items for information and set in online list database corresponding to removal
It is standby, then proceed to step (4).
It is preferred that described application layer finger daemon initiates to detect to corresponding equipment, it is specially：
Described application layer finger daemon is initiated to detect and sets timer to corresponding equipment.
More preferably, it is described according to whether receiving link layer data bag corresponding to equipment judges whether equipment online, bag
Include following steps：
Application layer finger daemon described in (4-1) judges link layer corresponding to equipment whether is received before timer expiry
Packet, if it is, continuing step (4-2), otherwise continue step (4-3)；
It is presence that application layer finger daemon described in (4-2), which keeps this equipment state,；
This equipment state is arranged to off-line state by the application layer finger daemon described in (4-3).
Further, it is presence that described application layer finger daemon, which keeps this equipment state, is comprised the following steps：
Application layer finger daemon described in (4-2-1) is parsed the link layer data bag received；
Application layer finger daemon described in (4-2-2) reset the timer of detection and set detection information send interval and time
Number.
It is preferred that after described step (4), it is further comprising the steps of：
(5) client inquires about the efficiency of equipment for surfing the net in intelligent gateway by described application layer finger daemon.
Employ the method that standby upper down status rapid detection is hung under realizing in intelligent gateway in the invention, there is provided
A kind of method based on kernel FDB proactive notifications Yu link layer timing on-line water flushing technology, fast and accurately identifies equipment for surfing the net
On the one hand current state, kernel FDB proactive notifications can be improved on application layer (such as cell-phone customer terminal) inquiry gateway to application layer
The efficiency of net equipment, on the other hand also solve the problems, such as that DHCP protocol can not identify static IP device, link layer on-line water flushing
Technology then can effectively detect whether equipment has been off, and have wider application.
Brief description of the drawings
Fig. 1 is the flow chart for the method that standby upper down status rapid detection is hung under the realizing in intelligent gateway of the present invention.
Fig. 2 is the method that standby upper down status rapid detection is hung under the realizing in intelligent gateway of the present invention
Embodiment
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
To achieve these goals, it is necessary to design application layer finger daemon, it is used for and kernel communication.Use NETLINK skills
Art is completed and kernel communication, and FDB (Forwarding DataBase, forwarding database) changes message can be made to pass through NETLINK
Mode passes to application layer.Using layer process by monitored link layer Socket, judge whether equipment is also online.
The method that standby upper down status rapid detection is hung under the realizing in intelligent gateway of the present invention comprises the following steps：
(1) be connected simultaneously monitored link layer data after the startup of application layer finger daemon with the forwarding database based on kernel
Bag；
(2) notice described application layer finger daemon when the entry of the forwarding database based on kernel changes；
(3) the application layer finger daemon described in is changed items for information and changed in online list database corresponding to entry
Facility information；
(4) the application layer finger daemon described in initiates detection and according to whether receiving corresponding to equipment to corresponding equipment
Link layer data bag judges whether equipment is online.
In a kind of preferably embodiment, the entry of the forwarding database based on kernel notifies when changing
Described application layer finger daemon, it is specially：
Notified when the entry of forwarding database based on kernel changes by way of NETLINK sockets described
Application layer finger daemon.
In a kind of preferably embodiment, described application layer finger daemon changes items for information and in online list number
According to facility information corresponding to modification entry in storehouse, comprise the following steps：
Application layer finger daemon described in (3-1) judges that entry changes state in forwarding database, if addition entry,
Then continue step (3-2), if deleting entry, then continue step (3-3)；
Application layer finger daemon described in (3-2) adds items for information and set in online list database corresponding to addition
It is standby, then proceed to step (4)；
Application layer finger daemon described in (3-3) is deleted items for information and set in online list database corresponding to removal
It is standby, then proceed to step (4).
In a kind of preferably embodiment, described application layer finger daemon initiates to detect to corresponding equipment, specifically
For：
Described application layer finger daemon is initiated to detect and sets timer to corresponding equipment.
It is described to judge according to whether receiving link layer data bag corresponding to equipment in a kind of more preferably embodiment
Whether equipment is online, comprises the following steps：
Application layer finger daemon described in (4-1) judges link layer corresponding to equipment whether is received before timer expiry
Packet, if it is, continuing step (4-2), otherwise continue step (4-3)；
It is presence that application layer finger daemon described in (4-2), which keeps this equipment state,；
This equipment state is arranged to off-line state by the application layer finger daemon described in (4-3).
In a kind of further embodiment, it is in wire that described application layer finger daemon, which keeps this equipment state,
State, comprise the following steps：
Application layer finger daemon described in (4-2-1) is parsed the link layer data bag received；
Application layer finger daemon described in (4-2-2) reset the timer of detection and set detection information send interval and time
Number.
It is further comprising the steps of after described step (4) in a kind of preferably embodiment：
(5) client inquires about the efficiency of equipment for surfing the net in intelligent gateway by described application layer finger daemon.
Below, the present invention is further described with specific embodiment.As shown in figure 1, comprise the following steps that.
(1) after application layer finger daemon starts, it is proposed that it is connected with the NETLINK of kernel, and monitored link layer Socket.So
Enter select blocked states afterwards, wait message to be received.
(2) (addition, deleted) when kernel FDB entries change, notify application layer finger daemon using NETLINK, keep
Shield process, message post processing addition entry message is received, equipment is added in online list database.
(3) after finger daemon receives link layer data bag (arp, icmp_v6), packet is parsed, is existed according to MAC Address
Database finds relevant entry, and resets the timer for sending ARP or ICMP_V6.In order to increase the reliability of operation, Ke Yishe
Put transmission interval and number.
(4) if receiving link layer data bag before timer expiry, timer is reset, continues to initiate detection.Such as
Fruit at the appointed time, does not receive down and hangs standby response, i.e. timer expiry, then this equipment state is arranged into offline.
(5) for the equipment of off-line state, if being received again by its link layer data bag, then it is assumed that it reaches the standard grade again, keeps
Shield process updates the presence of this equipment.
(6) after FDB sends FDB entries deletion message, then application layer finger daemon also deletes corresponding entry.Equipment is again
Meeting repeat step (2) operation when reaching the standard grade, into new detection.
Each Symbol explanation is as follows in Fig. 2：
1：Client query information channel；
2：Application layer finger daemon, realized for completing offline information processing in equipment with the core that data preserve；
3：Lower extension equipment information database, it is on the one hand logical for 1 inquiry for preserving the upper offline essential information of all devices
Road provides information, and on the other hand using passage in 6, timing sends detection bag；
4：NETLINK passages-FDB is notified, for transmitting kernel active reporting FDB entry modification informations；
5：Link layer SOCKET monitors passage, monitors ARP or ICMP_V6 information and is used for inquiring about timer in updating 3；
6：Bag timing sendaisle is detected, equipment regularly sends the socket passages that detection is wrapped in 3.
Employ the method that standby upper down status rapid detection is hung under realizing in intelligent gateway in the invention, there is provided
A kind of method based on kernel FDB proactive notifications Yu link layer timing on-line water flushing technology, fast and accurately identifies equipment for surfing the net
On the one hand current state, kernel FDB proactive notifications can be improved on application layer (such as cell-phone customer terminal) inquiry gateway to application layer
The efficiency of net equipment, on the other hand also solve the problems, such as that DHCP protocol can not identify static IP device, link layer on-line water flushing
Technology then can effectively detect whether equipment has been off, and have wider application.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that it can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
It is and nonrestrictive.
Claims (6)
1. it is a kind of realize in intelligent gateway under hang the method for standby upper down status rapid detection, it is characterised in that described side
Method comprises the following steps：
(1) be connected simultaneously monitored link layer data bag after the startup of application layer finger daemon with the forwarding database based on kernel；
(2) notice described application layer finger daemon when the entry of the forwarding database based on kernel changes；
(3) equipment that the items for information that the application layer finger daemon described in is sent according to kernel is updated in online list database is believed
Breath；
(4) the application layer finger daemon described in initiates detection and according to whether receiving link corresponding to equipment to corresponding equipment
Layer data bag judges whether equipment is online.
2. it is according to claim 1 realize in intelligent gateway under hang the method for standby upper down status rapid detection, it is special
Sign is, described application layer finger daemon, tool are notified when the entry of the forwarding database based on kernel changes
Body is：
Described application is notified when the entry of forwarding database based on kernel changes by way of NETLINK sockets
Layer finger daemon.
3. it is according to claim 1 realize in intelligent gateway under hang the method for standby upper down status rapid detection, it is special
Sign is that the equipment that the items for information that described application layer finger daemon is sent according to kernel is updated in online list database is believed
Breath, comprises the following steps：
Application layer finger daemon described in (3-1) judges in forwarding database that entry changes state, if addition entry, then after
Continuous step (3-2), if deleting entry, then continue step (3-3)；
Application layer finger daemon addition items for information described in (3-2) and the equipment corresponding to addition in online list database,
Then proceed to step (4)；
Application layer finger daemon described in (3-3) deletes items for information and the equipment corresponding to removal in online list database,
Then proceed to step (4).
4. it is according to claim 1 realize in intelligent gateway under hang the method for standby upper down status rapid detection, it is special
Sign is that described application layer finger daemon initiates to detect to corresponding equipment, is specially：
Described application layer finger daemon is initiated to detect and sets timer to corresponding equipment.
5. it is according to claim 4 realize in intelligent gateway under hang the method for standby upper down status rapid detection, it is special
Sign is, described according to whether receiving link layer data bag corresponding to equipment judges whether equipment is online, including following step
Suddenly：
Application layer finger daemon described in (4-1) judges link layer data corresponding to equipment whether is received before timer expiry
Bag, if it is, continuing step (4-2), otherwise continue step (4-3)；
It is presence that application layer finger daemon described in (4-2), which keeps this equipment state,；
This equipment state is arranged to off-line state by the application layer finger daemon described in (4-3).
6. it is according to claim 5 realize in intelligent gateway under hang the method for standby upper down status rapid detection, it is special
Sign is that it is presence that described application layer finger daemon, which keeps this equipment state, is comprised the following steps：
Application layer finger daemon described in (4-2-1) is parsed the link layer data bag received；
Application layer finger daemon described in (4-2-2) resets the timer of detection and sets detection information to send interval and number.
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| CN201410809500.XA CN104468280B (en) | 2014-12-19 | 2014-12-19 | The method that standby upper down status rapid detection is hung under realizing in intelligent gateway |
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| CN201410809500.XA CN104468280B (en) | 2014-12-19 | 2014-12-19 | The method that standby upper down status rapid detection is hung under realizing in intelligent gateway |
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| CN104468280B true CN104468280B (en) | 2018-04-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104869553A (en) * | 2015-05-22 | 2015-08-26 | 上海斐讯数据通信技术有限公司 | Electronic equipment discovery method and apparatus, and router |
| CN111083055B (en) * | 2019-11-26 | 2022-03-22 | 深圳市共进电子股份有限公司 | Client device management method and device, router and storage medium |
| CN114039897A (en) * | 2021-10-29 | 2022-02-11 | 四川天邑康和通信股份有限公司 | Method for identifying offline of relay router down-hanging device based on home gateway |
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