CN108521336A - A kind of method and device for controlling routing networking IP address conflict - Google Patents
A kind of method and device for controlling routing networking IP address conflict Download PDFInfo
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- CN108521336A CN108521336A CN201810179673.6A CN201810179673A CN108521336A CN 108521336 A CN108521336 A CN 108521336A CN 201810179673 A CN201810179673 A CN 201810179673A CN 108521336 A CN108521336 A CN 108521336A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
-
- 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
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5046—Resolving address allocation conflicts; Testing of addresses
Abstract
The invention discloses a kind of method and device for controlling routing networking IP address conflict, this method includes：In session establishment, while far-end address messaging list is established, preserves the address message that local and opposite end is mutually sent；The LSR for receiving address message, the far-end address messaging list using each session and local interface address list, detection address message carries address, and whether the IP address conflict with networking equipment informs if entry/exit conflicts and sends address message end.The present invention is by establishing far-end address messaging list, remote interface address administration is carried out to the address message received, routing networking IP address conflict detection is completed during LDP session negotiations are established and mutually send address message, and independent of specifically enabled Routing Protocol, the efficiency of MPLS LDP is not only increased, and enhances the flexibility of configuration.
Description
Technical field
The present invention relates to data and IP transmission devices, and in particular to a kind of side for controlling routing networking IP address conflict
Method and device.
Background technology
In MPLS (Multiprotocol Label Switching, multiprotocol label switching) LDP (Label
Distribution Protocol, tag distribution protocol) in agreement, the link properties and topology information of network, which pass through, route association
View, which calculates, to be generated, and is sent to LDP protocol modules after routing management module preferably route, according to the routing iinformation received with
Routing iinformation is associated with by opposite end address message list, LDP with LDP session (LDP sessions), initiates LDP label notice message
To generate LDP LSP (Label Switched Paths, label switched path).
Under normal conditions, during LSP is established, after a new LDP Session is established, LSR (Label
Switching Routers, Label Switch Router) label mapping message or label request message (Label should sent
Mapping or Label Request messages) to before opposite equip. (PEER, opposite equip.), pass through address message
(Address Message) notices its total interface address to opposite end；Opposite end PEER safeguards a number after receiving address message
According to library for mapping PEER LDP ID (LDP Identifiers, LDP Identifier) and next hop address (next hop
addresses)。
The above-mentioned this mode that LSP is generated using LDP agreements, it is necessary to assure the IP address in routing networking configures unique
Property, correct session (session) could be correctly associated in address message list by the next hop address of routing, and
It is route IP address conflict no alarm detection in networking, it is difficult to ensure that the uniqueness of IP address configuration, this will lead to not pass through road
By next hop address correct session is associated in address message list, to influence such as LDP label switching path
The problems such as establishing.
Invention content
The technical problem to be solved by the present invention is in Routing Protocol networking IP address conflict no alarm detect, it is difficult to protect
The uniqueness for demonstrate,proving IP address configuration, leads to not be associated in address message list correctly by the next hop address of routing
Session, to influence such as the problems such as foundation of LDP label switching path.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is to provide a kind of for controlling routing networking
The method of IP address conflict, specially：
Session establishment establishes far-end address messaging list, preserves the address message that local and opposite end is mutually sent；
The LSR for receiving address message, the far-end address messaging list using each session and local interface address list, inspection
Surveying address message carrying address, whether the IP address conflict with networking equipment informs if entry/exit conflicts and sends address message end.
In the above-mentioned methods, address message is carried address by the LSR for receiving address message, distally with each session
Each address in location messaging list and local interface address list is compared, if there is identical address, the ground of the address message
The IP address conflict of location and networking equipment；Otherwise, Lothrus apterus.
In the above-mentioned methods, when the IP address conflict of the address of the address message and networking equipment, pass through system alarm
Daily record notice sends address message end, and the address in address message is with local interface address conflict, or with other in networking
There is conflict in the interface IP address of remote equipment.
In the above-mentioned methods, far-end address messaging list and local interface address list of the LSR using each session, detection
Address message carry address whether the IP address conflict with networking equipment, specifically include following steps：
Step S11, after receiving address message, the far-end address that the address of address message is added to respective session by LSR disappears
Cease list；
Step S12, take successively in the address of address message and the far-end address messaging list of different sessions each address into
Row compares, and judges whether identical address, if it does, executing step S14；Otherwise, step S13 is executed；
Step S13, it takes the address of address message to be compared with local interface address list successively, judges whether phase
Same address, if it does, executing step S14；Otherwise, step S15 is executed；
Step S14, by system alarm daily record, the IP address of conflict, the equipment identification information of corresponding session are printed；
Step S15, it returns, waits for the address message of next reception.
In the above-mentioned methods, when receiving the address withdraw message of opposite end, into row address destruction operation, in different sessions
The address that address withdraw message carries is deleted in far-end address message column.
In the above-mentioned methods, LSR specifically includes following steps into row address destruction operation：
Step S21, the address withdraw message of opposite end is received；
Step S22, LSR takes out each of address withdraw message received revocation address successively；
Step S23, search whether there is section identical with the revocation address in the far-end address messaging list of different sessions
Point, and if it exists, then follow the steps S24；Otherwise, step S25 is executed；
Step S24, address of node identical with revocation address in far-end address messaging list is deleted；
Step S25, judge whether the revocation address in address withdraw message all takes out, step is executed if all taken out
S26；Otherwise, step S22 is executed；
Step S26, terminate revocation address function.
The present invention also provides a kind of devices for controlling routing networking IP address conflict, including configure LDP sessions
LSR is arranged on the LSR with lower module：
Remote interface address management module, for the newly-built corresponding far-end address messaging list of session establishment, preserve it is local and
The address message that opposite end is mutually sent；And it using the far-end address messaging list of each session, detects the address message received and takes
With address, whether the IP address conflict with networking equipment reports LSR if entry/exit conflicts；Transmission address message is informed by the LSR
End；
Local interface address management module detects the address message received and carries address using local interface address list
Whether the IP address conflict with networking equipment reports LSR if entry/exit conflicts；It is informed by the LSR and sends address message end.
In above-mentioned apparatus, the remote interface address management module, by the address message received carrying address and each
Each address in the far-end address messaging list of session is compared, if there is identical address, the address of the address message and networking
The IP address conflict of equipment；Otherwise, Lothrus apterus；
The local interface address management module carries the address message received in address and local interface address list
Each address compare, if there is identical address, the address of the address message and the IP address conflict of networking equipment；Otherwise, nothing
Conflict.
In above-mentioned apparatus, when the IP address conflict of the address of the address message and networking equipment：
The LSR notifies to send address message end, the address in Notify Address message and networking by system alarm daily record
There is conflict or local interface address conflict in the interface IP address of other interior remote equipments.
In above-mentioned apparatus, when receiving the address withdraw message of opposite end, the remote interface address management module is not
With the address for deleting address withdraw message carrying in the far-end address message column of session.
The present invention to the address message received by carrying out remote interface address administration, in LDP session negotiations foundation and phase
IP address conflict detection in routing networking is completed during mutually sending address message, can accurately be specified in MPLS LDP applications
Specific IP address configuration conflict, and independent of specifically enabled Routing Protocol, the efficiency of MPLS LDP is not only increased, and
And the flexibility of configuration is enhanced, it is applied in the mixed networking of Routing Protocol, extends the application range of the prior art.
Description of the drawings
Fig. 1 is a kind of particular flow sheet for controlling the method for routing networking IP address conflict provided by the invention.
Fig. 2 is the particular flow sheet that the present invention executes address destruction operation；
Fig. 3 is a kind of structure diagram for controlling the device of routing networking IP address conflict provided by the invention.
Specific implementation mode
The present invention is from Routing Protocol mixed networking special applications, under with MPLS LDP application scenarios, for not
With the interface IP address of device configuration, IP address conflict detection function is realized, to control routing networking IP address configuration conflict.
The present invention is described in detail with specific embodiment with reference to the accompanying drawings of the specification.
A kind of method for controlling routing networking IP address conflict provided by the invention, supports some to configure LDP sessions
Router in networking other establish the detection of address configuration conflict between the router of session therewith.It is applied in MPLS LDP
In scene, corresponding far-end address messaging list is established if it is each session, can thus utilize the remote of each session
Address message list is held to realize the IP address conflict detection of entire routing networking, specially：
After session establishment, local and opposite end needs mutually to send address message, establishes the far-end address for preserving address message
Messaging list manages global far-end address by far-end address messaging list；
The LSR for receiving address message, the far-end address messaging list using each session and local interface address list, inspection
Surveying address message carrying address, whether the IP address conflict with networking equipment informs if entry/exit conflicts and sends address message end.
It can be seen that the present invention is completed during LDP session negotiations are established and mutually send address message in routing networking
IP address conflict detection, global address administration is carried out after receiving address message by LSR, it can be fast by global address administration
Quick checking is looked for the presence or absence of conflict IP address.
Embodiment one.
In the present embodiment, address message is carried address by the LSR for receiving address message, distally with each session
Each address in location messaging list and local interface address list is compared, if there is identical address, the ground of the address message
The IP address conflict of location and networking equipment；Otherwise, Lothrus apterus.
Embodiment two.
When the IP address conflict of the address of the address message and networking equipment, notify to send ground by system alarm daily record
Location message end, the address (address is only the address clashed) in address message is the same as local interface address conflict, Huo Zhetong
There is conflict in the interface IP address of other remote equipments in networking.
Embodiment three.
As shown in Figure 1, in the present embodiment, LSR is using the far-end address messaging list of each session and local interface
Location list, detection address message carry address whether the IP address conflict with networking equipment, specifically include following steps：
Step S11, after receiving address message, the address of address message is added to the remote of corresponding session (session) by LSR
Hold address message list；
Step S12, the address for taking address message successively is compared from the far-end address messaging list of different session,
Judge to whether there is address identical with address message in far-end address messaging list, if it is present indicating IP in networking
There is conflict in address configuration, execute step S14；Otherwise, step S13 is executed；
Step S13, it takes the address of address message to be compared with each address in local interface address list successively, judges
With the presence or absence of identical address, if it does, showing address and the local interface address conflict of end configuration, step S14 is executed；It is no
Then, step S15 is executed；
Step S14, by system alarm daily record, the IP address (address in address message) of conflict and corresponding is printed
The equipment identification information of session；
Step S15, it returns, waits for the address message of next reception.
Example IV.
In the present embodiment, when (Address withdraw message are removed address the address withdraw message for receiving opposite end
Sell message) when, LSR is into row address destruction operation, and deletion address withdraw message is taken in the far-end address message column of different sessions
The address of band.
Embodiment five.
As shown in Fig. 2, in the present embodiment, LSR specifically includes following steps into row address destruction operation：
Step S21, the address withdraw message of opposite end is received；
Step S22, LSR takes out each of address withdraw message received revocation address successively；
Step S23, search whether there is section identical with the revocation address in the far-end address messaging list of different sessions
Point, and if it exists, then follow the steps S24；Otherwise, step S25 is executed；
Step S24, address of node identical with revocation address in far-end address messaging list is deleted；
Step S25, judge whether the revocation address in address withdraw message all takes out, step is executed if all taken out
S26；Otherwise, step S22 is executed；
Step S26, terminate revocation address function.
As shown in figure 3, a kind of device for controlling routing networking IP address conflict provided by the invention, is included in configuration
The LSR10 of LDP sessions is provided with remote interface address management module 11 and local interface address management module 12 on LSR10；
Remote interface address management module 11 preserves local for the corresponding far-end address messaging list of newly-built session establishment
The address message mutually sent with opposite end；And using the far-end address messaging list of each session, detect the address message received
Carrying address, whether the IP address conflict with networking equipment reports LSR10 if entry/exit conflicts；Transmission address message is informed by LSR10
End；
Local interface address management module 12 detects the address message received and carries ground using local interface address list
Whether the IP address conflict with networking equipment reports LSR10 if entry/exit conflicts for location；It is informed by LSR10 and sends address message end.
Embodiment six.
In the present embodiment, the address message received is carried address and each session by remote interface address management module 11
Far-end address messaging list in each address compare, if there is identical address, the address of the address message and networking equipment
IP address conflict；Otherwise, Lothrus apterus；
Local interface address management module 12 carries the address message received in address and local interface address list
Each address is compared, if there is identical address, the address of the address message and the IP address conflict of networking equipment；Otherwise, no punching
It is prominent.
When the IP address conflict of the address of the address message and networking equipment：
LSR10 notifies to send address message end by system alarm daily record, in the address and networking in Notify Address message
Other remote equipments interface IP address exist conflict or local interface address conflict.
When receiving the address withdraw message of opposite end, far-end address of the remote interface address management module 12 in different sessions
The address that address withdraw message carries is deleted in message column.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of method for controlling routing networking IP address conflict, which is characterized in that be specially：
Session establishment establishes far-end address messaging list, preserves the address message that local and opposite end is mutually sent；
The LSR for receiving address message, the far-end address messaging list using each session and local interface address list, detection ground
Location message carries address, and whether the IP address conflict with networking equipment informs if entry/exit conflicts and sends address message end.
2. the method as described in claim 1, which is characterized in that address message is carried address by the LSR for receiving address message,
Compared with each address in the far-end address messaging list of each session and local interface address list, if there is in the same manner
Location, the address of the address message and the IP address conflict of networking equipment；Otherwise, Lothrus apterus.
3. method as claimed in claim 2, which is characterized in that when the address of the address message and the IP address of networking equipment rush
When prominent, notify to send address message end by system alarm daily record, the address in address message with local interface address conflict, or
There is conflict with the interface IP address of other remote equipments in networking in person.
4. method as claimed in claim 3, which is characterized in that LSR utilizes the far-end address messaging list of each session and this
Ground interface address list, detection address message carry address whether the IP address conflict with networking equipment, specifically include following step
Suddenly：
Step S11, after receiving address message, the address of address message is added to the far-end address message column of respective session by LSR
Table；
Step S12, each address in the address of address message and the far-end address messaging list of different sessions is taken to be compared successively
Compared with identical address being judged whether, if it does, executing step S14；Otherwise, step S13 is executed；
Step S13, it takes the address of address message to be compared with local interface address list successively, judges whether in the same manner
Location, if it does, executing step S14；Otherwise, step S15 is executed；
Step S14, by system alarm daily record, the IP address of conflict, the equipment identification information of corresponding session are printed；
Step S15, it returns, waits for the address message of next reception.
5. method according to any one of claims 1-4, which is characterized in that when receiving the address withdraw message of opposite end, into
Row address destruction operation deletes the address that address withdraw message carries in the far-end address message column of different sessions.
6. method as claimed in claim 5, which is characterized in that LSR specifically includes following steps into row address destruction operation：
Step S21, the address withdraw message of opposite end is received；
Step S22, LSR takes out each of address withdraw message received revocation address successively；
Step S23, search whether there is node identical with the revocation address in the far-end address messaging list of different sessions, if
In the presence of thening follow the steps S24；Otherwise, step S25 is executed；
Step S24, address of node identical with revocation address in far-end address messaging list is deleted；
Step S25, judge whether the revocation address in address withdraw message all takes out, step S26 is executed if all taken out；
Otherwise, step S22 is executed；
Step S26, terminate revocation address function.
7. a kind of device for controlling routing networking IP address conflict includes the LSR of configuration LDP sessions, which is characterized in that
It is arranged with lower module on the LSR：
Remote interface address management module preserves local and opposite end for the corresponding far-end address messaging list of newly-built session establishment
The address message mutually sent；And using the far-end address messaging list of each session, detects the address message received and carry ground
Whether the IP address conflict with networking equipment reports LSR if entry/exit conflicts for location；It is informed by the LSR and sends address message end；
Local interface address management module detects whether the address message received carries address using local interface address list
With the IP address conflict of networking equipment LSR is reported if entry/exit conflicts；It is informed by the LSR and sends address message end.
8. device as claimed in claim 7, which is characterized in that the remote interface address management module, the address that will be received
Message carries address compared with each address in the far-end address messaging list of each session, if there is identical address, the ground
The address of location message and the IP address conflict of networking equipment；Otherwise, Lothrus apterus；
The local interface address management module, by the address message received carry address with it is every in local interface address list
A address is compared, if there is identical address, the address of the address message and the IP address conflict of networking equipment；Otherwise, Lothrus apterus.
9. device as claimed in claim 7, which is characterized in that when the address of the address message and the IP address of networking equipment rush
When prominent：
The LSR notifies to send address message end by system alarm daily record, in the address and networking in Notify Address message
There is conflict or local interface address conflict in the interface IP address of other remote equipments.
10. device as claimed in claim 7, which is characterized in that when receiving the address withdraw message of opposite end, the distal end connects
Port address management module deletes the address of address withdraw message carrying in the far-end address message column of different sessions.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810179673.6A CN108521336B (en) | 2018-03-05 | 2018-03-05 | Method and device for controlling IP address conflict of routing networking |
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| CN201810179673.6A CN108521336B (en) | 2018-03-05 | 2018-03-05 | Method and device for controlling IP address conflict of routing networking |
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| CN108521336B CN108521336B (en) | 2021-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109218198A (en) * | 2018-10-09 | 2019-01-15 | 迈普通信技术股份有限公司 | Data interactive method, device, MPLS network and storage medium |
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| CN108521336B (en) | 2021-08-03 |
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