CN106713134A - Static IP longest matching-based session border controller (SBC) disaster recovery method and system, and apparatus - Google Patents
Static IP longest matching-based session border controller (SBC) disaster recovery method and system, and apparatus Download PDFInfo
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- CN106713134A CN106713134A CN201510796111.2A CN201510796111A CN106713134A CN 106713134 A CN106713134 A CN 106713134A CN 201510796111 A CN201510796111 A CN 201510796111A CN 106713134 A CN106713134 A CN 106713134A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/22—Alternate routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/24—Multipath
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/74—Address processing for routing
- H04L45/745—Address table lookup; Address filtering
- H04L45/748—Address table lookup; Address filtering using longest matching prefix
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Abstract
The present invention discloses a static IP longest matching-based session border controller (SBC) disaster recovery method. At least one disaster recovery SBC is configured. The disaster recovery SBC has all virtual SBC data corresponding to each master SBC. When disaster recovery is performed on the master SBC, a user IP address and a subnet mask are configured on a disaster recovery customer edge (CE) of the disaster recovery SBC, the user IP address is identical to a user IP address of the master SBC undergoing disaster recovery, and digits of an address mask of the subnet mask are greater than digits of an address mask of the CE corresponding to the master SBC undergoing disaster recovery; and a data packet of the master SBC undergoing disaster recovery is routed to a disaster recovery CE of the disaster recovery SBC according to a static IP longest matching rule. The present invention further discloses a static IP longest matching-based SBC disaster recovery system and a disaster recovery switch control apparatus.
Description
Technical field
The present invention relates to Session Border Controller (SBC, Session Border Controller) disaster tolerance technology,
More particularly to a kind of SBC disaster recovery methods based on static IP matching most long, system and device.
Background technology
IP multimedia subsystem (IMS, IP Multimedia Subsystem) be one kind realize voice, video,
The communication system of data fusion communication, the first point device that the SBC in the system is accessed as user terminal,
It is required that SBC has the reliabilty and availability of height.To realize any one SBC failure in IMS systems
Afterwards, standby SBC equipment adapter can be quickly enabled, the disaster tolerance framework of SBC need to be just built.
With the continuous growth of IMS network user, the service reliability to IMS network proposes higher wanting
Ask, especially boundary Control equipment -- the SBC of IMS network.Because SBC is subregion deployment, number itself
Amount is more, and according to each region, each newly-built disaster tolerance SBC realizes disaster tolerance, investment greatly, the construction period it is long,
Actual requirement is not met.
A kind of implementation of existing SBC disaster tolerances is：Two sets of identical is built by same terminal sites
SBC, composition SBC pond, configure to terminal identical IP address on two SBC in SBC ponds, when
Wherein one SBC is delayed after machine or failure, and terminal can be routed on another SBC in SBC ponds automatically.
The implementation disaster tolerance switching time is short, but requires to build double SBC quantity, with high costs.
The implementation of existing another SBC disaster tolerances is：One is built outside the SBC of N number of terminal sites
Set disaster tolerance SBC is used as the disaster tolerance equipment of N number of SBC.When delay machine or other failures of certain SBC are needed
During by service switching to disaster tolerance SBC, by the urgent configuration data of attendant, first primary SBC is being connected
The related static roads of primary SBC are deleted on corresponding customer side edge device (CE, Customer Edge)
By, then increase this static routing on the CE of connection disaster tolerance SBC sides, by the void configured on disaster tolerance SBC
Intend primary SBC, reach the effect of disaster tolerance.Although the implementation cost of implementation is relatively low, disaster tolerance switching
Time is long.Specifically, when certain SBC failure needs switching, failure SBC sides and disaster tolerance SBC sides
Related CE equipment and disaster tolerance SBC equipment be both needed to Temporal configuration data in itself, disaster tolerance switching is related to operation
Network element it is many, the operating process time is more long；Furthermore, provisional configuration disaster tolerance switch data, the correctness of data
With reliability it cannot be guaranteed that.
The content of the invention
To overcome the deficiencies in the prior art, the embodiment of the present invention to expect to provide a kind of based on static IP matching most long
SBC disaster recovery methods, system and device, can not only it is quick and easy, be achieved at low cost SBC disaster tolerances,
And can guarantee that the accuracy and reliability of data.
What the technical scheme of the embodiment of the present invention was realized in：
A kind of SBC disaster recovery methods based on static IP matching most long are the embodiment of the invention provides, configuration is extremely
Few disaster tolerance a SBC, the disaster tolerance SBC be virtual whole SBC datas corresponding with each primary SBC；
Methods described also includes：
When carrying out disaster tolerance to primary SBC, on the disaster tolerance CE of disaster tolerance SBC sides configure IP address and
Subnet mask, the IP address is identical and described with by the IP address of the primary SBC of disaster tolerance
The address mask digit of subnet mask more than with by the address mask position of the corresponding CE of the primary SBC of disaster tolerance
Number；
Based on static IP longest match principle, disaster tolerance SBC is routed to by the packet of the primary SBC of disaster tolerance
On the disaster tolerance CE of side.
In such scheme, methods described also includes：The address of configuration disaster tolerance SBC is under on disaster tolerance CE
Jump address.
In such scheme, methods described also includes：Disaster tolerance switching control is set, and is cut in the disaster tolerance
Change in control device and store corresponding with by the primary SBC of disaster tolerance by the IP address of the primary SBC of disaster tolerance
CE subnet mask；
Configuration IP address and the subnet mask on the disaster tolerance CE of disaster tolerance SBC sides are：The disaster tolerance
Switching control is configured according to the IP address and subnet mask that itself store on disaster tolerance CE.
In such scheme, the disaster tolerance switching control is configured with the instruction of release disaster tolerance CE；
Methods described also includes：When disaster tolerance CE is discharged, the disaster tolerance switching control is to the disaster tolerance
CE is imported and released order, and will route to the primary SBC before the packet on disaster tolerance CE is re-routed to disaster tolerance
On corresponding CE.
In such scheme, the disaster tolerance SBC is virtual each primary SBC pairs by configuring SBC proxy mappings group
The whole SBC datas answered；Wherein, SBC proxy mappings group includes at least two mapping groups, and each is primary
The SBC data of SBC is corresponding with a SBC proxy mapping group.
The embodiment of the present invention additionally provides a kind of SBC disaster tolerance systems based on static IP matching most long, including：
More than one primary SBC and respectively CE corresponding with each primary SBC；The system also includes at least one
Disaster tolerance SBC, disaster tolerance CE and disaster tolerance switching control；Wherein,
The disaster tolerance SBC, for virtually whole SBC datas corresponding with each primary SBC；
The disaster tolerance CE, for receiving the IP address that the disaster tolerance switching control is configured to itself
And subnet mask, and receive by the packet of the primary SBC of disaster tolerance；
The disaster tolerance switching control, for when disaster tolerance is carried out to primary SBC, in disaster tolerance SBC sides
Disaster tolerance CE on configure IP address and subnet mask, the IP address with by the primary of disaster tolerance
The IP address of SBC is identical, and the subnet mask address mask digit be more than with by the primary of disaster tolerance
The address mask digit of the corresponding CE of SBC；Based on static IP longest match principle, by by the primary of disaster tolerance
The packet of SBC is routed on the disaster tolerance CE of disaster tolerance SBC sides.
In such scheme, the disaster tolerance switching control is additionally operable to discharge disaster tolerance CE's according to configuration
Instruction, when disaster tolerance CE is discharged, imports to the disaster tolerance CE and releases order, and will route on disaster tolerance CE
Packet be re-routed on the corresponding CE of primary SBC before disaster tolerance.
In such scheme, the disaster tolerance CE is additionally operable to receive the address of disaster tolerance SBC as lower jump address
Configuration.
In such scheme, the disaster tolerance switching control is additionally operable to storage by the use of the primary SBC of disaster tolerance
Family IP address and the subnet mask by the corresponding CE of the primary SBC of disaster tolerance；And the user stored according to itself
IP address and subnet mask are configured on disaster tolerance CE.
In such scheme, the disaster tolerance SBC, specifically for by configuring the virtual each master of SBC proxy mappings group
With the corresponding whole SBC datas of SBC；Wherein, SBC proxy mappings group includes at least two mapping groups,
The SBC data of each primary SBC is corresponding with a SBC proxy mapping group.
The embodiment of the present invention provides a kind of disaster tolerance switching control, the disaster tolerance switching control bag again
Include configuration module and routing module；Wherein,
The configuration module, covers for configuration IP address and subnet on the disaster tolerance CE of disaster tolerance SBC sides
Code, the IP address is identical with by the IP address of the primary SBC of disaster tolerance, and the subnet is covered
The address mask digit of code more than with by the address mask digit of the corresponding CE of the primary SBC of disaster tolerance；
The routing module, for based on static IP longest match principle, by by the primary SBC's of disaster tolerance
Packet is routed on the disaster tolerance CE of disaster tolerance SBC sides.
In such scheme, the disaster tolerance switching control also includes memory module, for storing by disaster tolerance
The IP address of primary SBC and the subnet mask by the corresponding CE of the primary SBC of disaster tolerance；
Accordingly, the configuration module is stored according to memory module IP address and subnet mask are in disaster tolerance
Configured on CE.
In such scheme, the disaster tolerance switching control also includes release module, for releasing according to configuration
The instruction of disaster tolerance CE is put, when disaster tolerance CE is discharged, is imported to the disaster tolerance CE and released order, will route
Packet on to disaster tolerance CE is re-routed on the corresponding CE of primary SBC before disaster tolerance.
SBC disaster recovery methods based on static IP matching most long provided in an embodiment of the present invention, system and device,
It is pre-configured with that at least one disaster tolerance SBC, the disaster tolerance SBC is virtual whole corresponding with each primary SBC
SBC data；When carrying out disaster tolerance to any one primary SBC, match somebody with somebody on the disaster tolerance CE of disaster tolerance SBC sides
Put and covered with by the address of the IP address identical IP address of the primary SBC of disaster tolerance, subnet mask
Address mask digit of the code bit number more than the corresponding CE of primary SBC by disaster tolerance；So, based on quiet
State IP longest match principles, disaster tolerance SBC sides can be routed to by the packet of the primary SBC of disaster tolerance
On disaster tolerance CE.Due to virtually there is the corresponding whole SBC datas of each primary SBC on disaster tolerance SBC, and
The subnet mask of static routing is than by static on the corresponding CE of the primary SBC of disaster tolerance on disaster tolerance SBC side CE
The subnet mask of route is longer so that the static IP routing configuration on disaster tolerance SBC side CE is than by disaster tolerance
It is more accurate on the corresponding CE of primary SBC, in this way, the longest match principle based on static IP route selection,
Only need to configure disaster tolerance CE by disaster tolerance switching control, and the machine of delaying or the primary SBC of maintenance is corresponding
The packet of user terminal of CE agencies route to disaster tolerance CE, you can realize the disaster tolerance to SBC.This
Inventive embodiments are to be capable of achieving disaster tolerance without special maintenance human users, solve boundary Control equipment disaster tolerance side
Case construction cost is high, disaster tolerance switching need to spend the problem of a large amount of manpowers and time, can with it is convenient, fast,
The disaster tolerance switching to SBC is achieved at low cost, accuracy, security and the reliability of network and data is improve
Property.
Brief description of the drawings
Fig. 1 realizes schematic flow sheet for disaster recovery method of the embodiment of the present invention based on static IP matching most long；
Fig. 2 embodiment of the present invention is based on the composition structural representation of the disaster tolerance system of static IP matching most long；
Fig. 3 is shown by the applicable network topology of disaster tolerance system of the embodiment of the present invention based on static IP matching most long
It is intended to；
Fig. 4 is the composition structural representation of disaster tolerance switching control in the embodiment of the present invention；
Fig. 5 is the disaster tolerance switching control interface function schematic diagram of the embodiment of the present invention；
Fig. 6 is the disaster tolerance switching control imperative structures schematic diagram of the embodiment of the present invention.
Specific embodiment
In embodiments of the present invention, at least one disaster tolerance SBC, the disaster tolerance SBC of configuration virtually has and each master
With the corresponding whole SBC datas of SBC；When carrying out disaster tolerance to any one primary SBC, in disaster tolerance SBC
On the disaster tolerance CE of side configuration with by the IP address identical IP address of the primary SBC of disaster tolerance,
Address mask digit is covered more than with by the subnet of the address mask digit of the corresponding CE of the primary SBC of disaster tolerance
Code；Based on static IP longest match principle, disaster tolerance SBC is routed to by the packet of the primary SBC of disaster tolerance
On the disaster tolerance CE of side.
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the embodiment of the present invention is based on the Session Border Controller SBC of static IP matching most long
Disaster recovery method, comprises the following steps：
Step S1：Configuring at least one disaster tolerance SBC, the disaster tolerance SBC virtually has and each primary SBC pairs
The whole SBC datas answered；
Here, typically one disaster tolerance SBC of configuration, it is possible to fictionalize whole primary SBC in IMS network
Corresponding whole SBC datas.
Step S2：When carrying out disaster tolerance to primary SBC, user is configured on the disaster tolerance CE of disaster tolerance SBC sides
IP address and subnet mask, the IP address are identical with by the IP address of the primary SBC of disaster tolerance,
And the address mask digit of the subnet mask is covered more than with by the address of the corresponding CE of the primary SBC of disaster tolerance
Code bit number；
Here, when carrying out disaster tolerance to any one primary SBC, the control of disaster tolerance can be realized by each script,
Such as：By the configuration on the script of the disaster tolerance switching control for pre-setting and by the primary SBC of disaster tolerance
IP address identical IP address, and configure than by the IP address of the primary SBC of disaster tolerance
At least many one subnet mask of subnet mask；Wherein, most accurate subnet mask is preferably configured, such as
255.255.255.255 with lower jump address；
Afterwards, the script feeding disaster tolerance CE that will can have been configured is capable of achieving disaster tolerance.
Step S3：Based on static IP longest match principle, it is route by the packet of the primary SBC of disaster tolerance
To the disaster tolerance CE of disaster tolerance SBC sides；
Here, according to pre-configured script, disaster tolerance switching control can be by by the primary SBC of disaster tolerance
Packet be routed on the disaster tolerance CE of disaster tolerance SBC sides；Accordingly, disaster tolerance CE is according to the pin for receiving
This, receives corresponding data bag.
The SBC disaster tolerance systems based on static IP matching most long that the embodiment of the present invention is applied, including one
More than primary SBC and CE corresponding with each primary SBC respectively；As shown in Fig. 2 the system is also included extremely
Few disaster tolerance SBC21, disaster tolerance CE22 and a disaster tolerance switching control 23；Wherein,
The disaster tolerance SBC21, for virtually whole SBC datas corresponding with each primary SBC；
The disaster tolerance CE22, is connected, with disaster tolerance SBC21 and disaster tolerance switching control 23 for connecing respectively
The disaster tolerance switching control 23 is received to the IP address and subnet mask that itself configure, and receives quilt
The packet of the primary SBC of disaster tolerance；
The disaster tolerance switching control 23, for when disaster tolerance is carried out to primary SBC, in disaster tolerance SBC21
IP address and subnet mask, the IP address and the master by disaster tolerance are configured on the disaster tolerance CE22 of side
IP address with SBC is identical, and the subnet mask address mask digit be more than with by disaster tolerance
The address mask digit of the corresponding CE of primary SBC；Based on static IP longest match principle, by by disaster tolerance
The packet of primary SBC is routed on the disaster tolerance CE22 of disaster tolerance SBC21 sides.
In actual applications, disaster tolerance SBC21 is fictionalized and each master according to the quantity of the primary SBC of existing network
With the corresponding whole SBC datas of SBC, fictionalized according to virtual whole SBC datas whole primary
SBC；Generally, in an IMS network, disaster tolerance SBC21 can fictionalize whole primary
SBC。
Primary SBC is by configuring the entity of such as SBC proxy mappings group or similar functions come the business of carrying out
Realize；Specifically, main SBC configures SBC by SBC proxy mappings group or similar functions entity
The signaling address of upper core net, the media address of upper core net, the signaling address of underlying User side,
The media address of underlying User side realizes agency and forwarding of the User IP packet to equipment of the core network.One
As, on a primary SBC only configuration pin to this SBC be responsible for that zone user above- mentioned information, when
So, SBC can also configure multiple different SBC and act on behalf of proxy mapping group or similar functions entity.
Equally, disaster tolerance SBC1 is by configuring multiple different SBC proxy mappings groups or similar functions entity
Carry out whole SBC datas of virtual each primary SBC；Such as：By SBC on the disaster tolerance SBC1 in Zhejiang Province
The business datum configuration of the SBC proxy mapping groups in the data and the primary SBC in Hangzhou of proxy mapping group A
Unanimously, by the SBC in the data of SBC proxy mapping groups B and the primary SBC in Ningbo City on disaster tolerance SBC1
The business datum configuration consistency of proxy mapping group, by that analogy, configures all primary SBC's of Zhejiang districts and cities
The business datum of SBC proxy mapping groups, you can reach realization by the virtual Zhejiang the whole province IMS of disaster tolerance SBC1
The purpose of whole SBC datas of each primary SBC in network.
In actual applications, disaster tolerance switching control 23 and disaster tolerance CE22 realize route test by script,
Specifically：When disaster tolerance is carried out, script is imported to disaster tolerance CE22, the content of script is routing command；Phase
Answer, disaster tolerance CE22 changes or reconfigure static routing IP, including configuration disaster tolerance CE22 by script
On IP address, subnet mask and lower jump address.Wherein, the IP address on disaster tolerance CE22 is
With the IP address identical IP address of the primary SBC of the machine of delaying；Subnet mask is than by the master of disaster tolerance
Address mask digit with the corresponding CE of SBC is at least more one；Lower jump address is to be connected with disaster tolerance CE22
Disaster tolerance SBC interface IP address；Meanwhile, script can be configured to network element.
Here, for the script carries out examples of configurations to network element, it is assumed that script is ip route-static
221.131.194.146 255.255.255.255 172.16.2.2, expression is configured to：221.131.194.146 it is
The IP address configured on primary SBC, is destination address；172.16.2.2 it is and disaster tolerance CE22 phases
The address of the interface of disaster tolerance SBC even.
As shown in figure 3, due in IP network various router devices be interconnect, therefore, various roads
Routing iinformation can automatically be learnt by device equipment, and next-hop route is carried out according to the longest match principle of route,
I.e.：During for the routing iinformation that identical IP address is configured on different router devices, other routers
User profile can be routed to preferentially equipment that for the information for the most accurate subnet masks of this IP of being configured with
On platform router device；Also, the various router devices interconnected in IP network can learn from each other route
Information, so, in the case of User IP packet identical, as the disaster tolerance CE22 in disaster tolerance SBC21 sides
On, it is configured with the more accurate routing iinformation of CE equipment such as subnet mask more corresponding than to be switched primary SBC
When more accurate, user profile preferentially can be routed to disaster tolerance side by other router devices by disaster tolerance CE22
SBC21, and the IP address of SBC virtual on disaster tolerance SBC21 exactly with the IP address one of primary SBC
Cause.Wherein, can be configured on disaster tolerance SBC the primary SBC of disaster tolerance in need information, specifically,
The proxy mapping group of the primary SBC of disaster tolerance in need equivalent to replicating；When what is sent from disaster tolerance CE22
It is just automatic when the destination address of packet matches the IP address in the proxy mapping group of which primary SBC
In matching this proxy mapping group；IP address in the proxy mapping group of each primary SBC is different
, it is independent.
After the IP address of user profile enters whole CMNET networks, disaster tolerance will be preferentially routed to
On the corresponding disaster tolerance CE22 in SBC21 sides, disaster tolerance SBC21 is then reached, so as to realize the primary SBC of disaster tolerance
Purpose；Wherein, in whole CMNET networks, the border routing CE of core-network side and user side
Border routing AR is overall equivalent to a LAN, is generally applied to static IP longest match principle.For example：
In CMNET networks, set closer to the router of user terminal generally by than SBC sides CE equipment
Learn which CE equipment user profile override is sent to for such as AR.Here, the study refers to be based on
Longest match principle learns.
In the embodiment of the present invention, the disaster tolerance switching control 23 can include configuration module and route mould
Block；Wherein, the configuration module, on the disaster tolerance CE of disaster tolerance SBC sides configure IP address and
Subnet mask, the IP address is identical and described with by the IP address of the primary SBC of disaster tolerance
The address mask digit of subnet mask more than with by the address mask position of the corresponding CE of the primary SBC of disaster tolerance
Number；The routing module, for based on static IP longest match principle, by by the primary SBC's of disaster tolerance
Packet is routed on the disaster tolerance CE of disaster tolerance SBC sides.
The disaster tolerance switching control also includes memory module, for storing by the use of the primary SBC of disaster tolerance
Family IP address and the subnet mask by the corresponding CE of the primary SBC of disaster tolerance；
Accordingly, the configuration module is stored according to memory module IP address and subnet mask are in disaster tolerance
Configured on CE.
Shown in reference picture 4, Fig. 5 and Fig. 6, the memory module 31 can be wrapped according to the difference of storage object
Include：N number of User IP memory cell, N number of user subnet mask storage location and lower jump address storaging unit,
It is respectively used to store in network and the IP address of each user of primary SBC, subnet mask and lower jump address；
The configuration module can be further included：Call by location unit 32, address scaling unit 33, address pin
This compilation unit 34 and address script transmitting element 35；
Specifically, the call by location unit 32, the use for calling the SBC for needing disaster tolerance in disaster tolerance
Family IP address and subnet mask；The address scaling unit 33, for the subnet mask called to be changed
It is counted as binary number, and by address mask digit increase at least；The address script compilation unit 34,
Using the subnet mask after the IP address for calling, conversion and the disaster tolerance SBC as lower jump address
Address compilation into reconfigurable disaster tolerance CE script, and by address script transmitting element 35 by the pin
Originally it is sent to disaster tolerance CE；In this way, can on the disaster tolerance CE of disaster tolerance SBC sides configure IP address and
Subnet mask.
Generally, the content of the script can include emergent script, such as ip route-static 221.131.194.144
255.255.255.255 172.16.2.2；Can also include refunding script, Undo ip route-static
221.131.194.144 255.255.255.255 172.16.2.2；
Accordingly, preset configuration can be：Third party sends the appearance of instruction platform and required execute instruction
The passage configuration of calamity CE；The passage configuration includes：The title of CE, such as ZJHZ-CMNET-IMS-CE03-
HWNE40E；The type of passage, such as telnet；The interface IP address of CE, such as 10.71.91.172；Port
Number, such as 23；Etc..
The disaster tolerance switching control 3 also includes release module 36, for the release disaster tolerance according to configuration
The instruction of CE, when disaster tolerance CE is discharged, imports to the disaster tolerance CE and releases order, and will route to disaster tolerance
Packet on CE is re-routed on the corresponding CE of primary SBC before disaster tolerance.
In actual applications, as shown in Figure 3, it is assumed that the static routing configured on former each region disaster tolerance CE22
IP address is 30 bit address masks, during switching disaster tolerance, is configured on the disaster tolerance CE22 of disaster tolerance SBC21 sides
The static reason IP address is 32 bit address masks, and the routing iinformation than being configured on the CE in each region is more smart
Really.Concrete example is as follows：
The IP static routing life that the former primary SBC in Hangzhou is configured on the CE in the CMNET networks of Hangzhou
Make and be:Ip route-static 221.131.194.144 255.255.255.252 172.16.1.1 or ip route-static
221.131.194.144 255.255.255.254 172.16.1.1；This order expression 221.131.194.144,
221.131.194.145, the address mask of 221.131.194.146,221.131.194.147 is 30 or 31
Position, User IP packet routes to the next-hop of these IP address for 172.16.1.1, based on 172.16.1.1
With the IP address of SBC, the route CE that the tunnel IP address of Er Zhe tetra- is selected is corresponding with primary SBC
CE；By that analogy, the length of mask can be positioned voluntarily as needed, be not limited to length mentioned in this article
Degree.
When disaster tolerance switches, operating personnel are by the User IP information on corresponding CE under the primary SBC of the machine of delaying
Script is imported, the script that will change IP static routing by disaster tolerance switching control 23 is imported in disaster tolerance
On the disaster tolerance CE22 of SBC21 sides, the IP static route commands that it is configured are：
ip route-static 221.131.194.144 255.255.255.255 172.16.2.2；
ip route-static 221.131.194.145 255.255.255.255 172.16.2.2；
ip route-static 221.131.194.146 255.255.255.255 172.16.2.2；
ip route-static 221.131.194.147 255.255.255.255 172.16.2.2；
It is above-mentioned four order represent 221.131.194.144,221.131.194.145,221.131.194.146,
221.131.194.147 address mask is 32, the disaster tolerance CE22 that User IP packet passes through disaster tolerance side
Next hop address afterwards is 172.16.2.2, i.e. disaster tolerance SBC21；Matching most long according to IP static routing is former
Then, other router devices in CMNET nets can learn to being directed to including CE and AR
221.131.194.144,221.131.194.145,221.131.194.146,221.131.194.147 address is most
The next-hop of accurate route is 172.16.2.2, so that the information router of the user of near these IP address is under
One jumps on the router device for 172.16.2.2, i.e., skip to disaster tolerance SBC21 by disaster tolerance CE22.
When disaster tolerance switches, when script is issued into disaster tolerance SBC by the disaster tolerance switching control 23
After on the disaster tolerance CE of side, the AR equipment of bottom can learn to 221.131.194.144,
221.131.194.145, the most accurate routing iinformation of 221.131.194.146,221.131.194.147, will be follow-up
The IP packets that user terminal sends preferably are routed on the disaster tolerance CE of disaster tolerance SBC sides, and disaster tolerance SBC
According to the configuration of script on the disaster tolerance CE of side, the next-hop route of the IP address of user terminal is exactly disaster tolerance
SBC, so as to the IP packets for sending follow-up user terminal are routed on disaster tolerance SBC.
Similarly, in disaster-tolerant recovery, release command is imported to the script of disaster tolerance switching control 23, can be deleted
Except the information of these routes on the disaster tolerance CE22 of disaster tolerance SBC21 sides, so as to allow user data to be re-routed to
On former primary SBC.
During disaster-tolerant recovery, it is only necessary to which these routing iinformations of undo on disaster tolerance CE22, specific instructions are exemplified below：
Undo ip route-static 221.131.194.144 255.255.255.255 172.16.2.2；
Undo ip route-static 221.131.194.145 255.255.255.255 172.16.2.2；
Undo ip route-static 221.131.194.146 255.255.255.255 172.16.2.2；
Undo ip route-static 221.131.194.147 255.255.255.255 172.16.2.2；
These disaster tolerances switch script and disaster-tolerant recovery script, are all preset at the disaster tolerance switching control 23
On, select when in use, indicate switching or recovery pin by with the corresponding button of disaster tolerance switching control 23
This is controlled to disaster tolerance CE.
The above, only presently preferred embodiments of the present invention is not intended to limit protection model of the invention
Enclose.
Claims (13)
1. a kind of Session Border Controller SBC disaster recovery methods based on static IP matching most long, its feature exists
There is whole corresponding with each primary SBC in, at least one disaster tolerance SBC, the disaster tolerance SBC of configuration is virtual
SBC data；Methods described also includes：
When carrying out disaster tolerance to primary SBC, configured on the disaster tolerance customer side edge device CE of disaster tolerance SBC sides
IP address and subnet mask, the IP address and the IP address by the primary SBC of disaster tolerance
It is identical, and the subnet mask address mask digit more than with by the corresponding CE's of the primary SBC of disaster tolerance
Address mask digit；
Based on static IP longest match principle, disaster tolerance SBC is routed to by the packet of the primary SBC of disaster tolerance
On the disaster tolerance CE of side.
2. method according to claim 1, it is characterised in that methods described also includes：In disaster tolerance
The address of disaster tolerance SBC is configured on CE as lower jump address.
3. method according to claim 1, it is characterised in that methods described also includes：Disaster tolerance is set
Switching control, and stored by the User IP of the primary SBC of disaster tolerance in the disaster tolerance switching control
Address and the subnet mask by the corresponding CE of the primary SBC of disaster tolerance；
Configuration IP address and the subnet mask on the disaster tolerance CE of disaster tolerance SBC sides are：The disaster tolerance
Switching control is configured according to the IP address and subnet mask that itself store on disaster tolerance CE.
4. method according to claim 3, it is characterised in that the disaster tolerance switching control configuration
There is the instruction of release disaster tolerance CE；
Methods described also includes：When disaster tolerance CE is discharged, the disaster tolerance switching control is to the disaster tolerance
CE is imported and released order, and will route to the primary SBC before the packet on disaster tolerance CE is re-routed to disaster tolerance
On corresponding CE.
5. the method according to any one of Claims 1-4, it is characterised in that the disaster tolerance SBC
By configuring the SBC proxy mappings group virtually corresponding whole SBC datas of each primary SBC；Wherein, SBC
Proxy mapping group includes at least two mapping groups, the SBC data of each primary SBC and a SBC agency
Mapping group correspondence.
6. a kind of SBC disaster tolerance systems based on static IP matching most long, including：More than one primary SBC
And CE corresponding with each primary SBC respectively；Characterized in that, the system also includes at least one disaster tolerance
SBC, disaster tolerance CE and disaster tolerance switching control；Wherein,
The disaster tolerance SBC, for virtually whole SBC datas corresponding with each primary SBC；
The disaster tolerance CE, for receiving the IP address that the disaster tolerance switching control is configured to itself
And subnet mask, and receive by the packet of the primary SBC of disaster tolerance；
The disaster tolerance switching control, for when disaster tolerance is carried out to primary SBC, in disaster tolerance SBC sides
Disaster tolerance CE on configure IP address and subnet mask, the IP address with by the primary of disaster tolerance
The IP address of SBC is identical, and the subnet mask address mask digit be more than with by the primary of disaster tolerance
The address mask digit of the corresponding CE of SBC；Based on static IP longest match principle, by by the primary of disaster tolerance
The packet of SBC is routed on the disaster tolerance CE of disaster tolerance SBC sides.
7. system according to claim 6, it is characterised in that the disaster tolerance switching control, also
For the instruction of the release disaster tolerance CE according to configuration, when disaster tolerance CE is discharged, imported to the disaster tolerance CE
Release order, the primary SBC that the packet on disaster tolerance CE is re-routed to before disaster tolerance will be routed to corresponding
On CE.
8. system according to claim 6, it is characterised in that the disaster tolerance CE, is additionally operable to receive
Using the address of disaster tolerance SBC as lower jump address configuration.
9. system according to claim 6, it is characterised in that the disaster tolerance switching control, also
For store by the IP address of the primary SBC of disaster tolerance with by the corresponding CE's of the primary SBC of disaster tolerance
Subnet mask；And configured on disaster tolerance CE according to the IP address and subnet mask for itself storing.
10. the system according to any one of claim 6 to 9, it is characterised in that the disaster tolerance SBC,
Specifically for by configuring the SBC proxy mappings group virtually corresponding whole SBC datas of each primary SBC；Its
In, SBC proxy mappings group includes at least two mapping groups, the SBC data of each primary SBC and one
SBC proxy mappings group correspondence.
11. a kind of disaster tolerance switching controls, it is characterised in that the disaster tolerance switching control includes matching somebody with somebody
Put module and routing module；Wherein,
The configuration module, covers for configuration IP address and subnet on the disaster tolerance CE of disaster tolerance SBC sides
Code, the IP address is identical with by the IP address of the primary SBC of disaster tolerance, and the subnet is covered
The address mask digit of code more than with by the address mask digit of the corresponding CE of the primary SBC of disaster tolerance；
The routing module, for based on static IP longest match principle, by by the primary SBC's of disaster tolerance
Packet is routed on the disaster tolerance CE of disaster tolerance SBC sides.
12. devices according to claim 11, it is characterised in that the disaster tolerance switching control is also
Including memory module, for storing by the IP address of the primary SBC of disaster tolerance and the primary SBC by disaster tolerance
The subnet mask of corresponding CE；
Accordingly, the configuration module is stored according to memory module IP address and subnet mask are in disaster tolerance
Configured on CE.
13. device according to claim 11 or 12, it is characterised in that the disaster tolerance switching control
Device also includes release module, for the instruction of the release disaster tolerance CE according to configuration, in release disaster tolerance CE
When, imported to the disaster tolerance CE and released order, the packet on disaster tolerance CE will be routed to and be re-routed to hold
On the corresponding CE of primary SBC before calamity.
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