CN108092841A - A kind of maintaining method, the apparatus and system of gateway routing iinformation - Google Patents
A kind of maintaining method, the apparatus and system of gateway routing iinformation Download PDFInfo
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- CN108092841A CN108092841A CN201611048661.7A CN201611048661A CN108092841A CN 108092841 A CN108092841 A CN 108092841A CN 201611048661 A CN201611048661 A CN 201611048661A CN 108092841 A CN108092841 A CN 108092841A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/12—Network monitoring probes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/50—Testing arrangements
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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
- H04L45/02—Topology update or discovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The present invention provides a kind of maintaining method, the apparatus and system of gateway routing iinformation, wherein, this method includes, and gateway sends router solicitation RS messages according to the pre-set rule that sends within the routing aging time to router；The gateway judges whether to receive the router advertisement RA messages of router return；In the case where the judgment result is yes, which is updated the routing aging time, and maintains the routing iinformation of the router constant.By the present invention, gateway to router before ageing time by actively sending RS request messages, to obtain the RA messages of router return, so as to effectively maintain routing iinformation.
Description
Technical field
The present invention relates to IPv6 networks dispose field, relate generally to a kind of maintaining method of gateway routing iinformation, device and
System.
Background technology
As IPv4 addresses are constantly exhausted, the deployment of IPv6 networks is increasingly paid attention to be subject to network operator.Family
The terminal node that gateway device is disposed as IPv6 networks, most basic task are exactly that the ground of router is obtained by IPv6 networks
Location information.IPv6 standards define multiple agreements and obtain router address for terminal node, wherein most basic agreement is exactly adjacent
It occupies and finds agreement (Neighbor Discovery Protocol, NDP).
Router solicitation (Router Solicitation, RS) message is sent to road according to NDP regulations home gateway first
By device, router address is asked to it, after router receives RS messages, then sends router advertisement (Router to home gateway
Advertisement, RA) message, the route-map that home gateway is carried according to this RA message, mainly including router address
With the sending cycle of RA messages next time, the router address of configuring home gateway sets the ageing time of the router address
(T_Lifetime).Home gateway updates ageing time by the router RA messages that periodically (T_Interval_RA) is sent, and reaches
The purpose persistently kept to router address.
The sending cycle T_Interval_RA of RA messages is Min Rtr Adv Interval to Max Rtr Adv
A random value between Interval, i.e., the transmission interval of RA messages is unfixed each time.
In actual network deployment, home gateway often can not get the router cycle in the case that following several
(T_Interval_RA) the RA messages sent so as to which home gateway be caused to lose router address, make user network of short duration obstructed
Serious consequence.
Situation one：It is provided according to standard, home gateway, which receives default route ageing time (T_Lifetime), to be
The router cycle sends RA maximum time intervals duration (MaxRtrAdvInterval) between 9000 seconds.When certain router is set
Fixed default route aging duration (T_Lifetime) sends the maximum time interval of RA messages equal or close to the cycle
(MaxRtrAdvInterval) when, multicast RA messages that router is periodically sent easily because router processing delay or
The factors such as person's network delay so that the time up to home gateway has been more than aging duration, and makes home gateway user silent because losing
Recognize routing, and cause what user can not surf the Internet to happen.
Situation two：The multicast RA messages that the router cycle (T_Interval_RA) sends are due to network configuration or routing
Home gateway can not be reached caused by some factors of device configuration, after home gateway only etc. (T_Lifetime) to be aging again
By the RA messages of the RS Receive messages of requesting itself to unicast, such reason be cause home gateway discontinuity lose acquiescence
Gateway so that user's discontinuity suspension.
For the above situation, the prior art does not provide corresponding solution countermeasure.
The content of the invention
To solve the above problems, an embodiment of the present invention provides a kind of maintaining method of gateway routing iinformation, device and it is
System, fail to obtain RA messages in time to solve the prior art in gateway, caused by router address loss problem.
The technical solution of the embodiment of the present invention is realized as follows：
A kind of gateway route information maintaining method, including：
Gateway sends router solicitation RS reports according to the pre-set rule that sends within the routing aging time to router
Text；
The gateway judges whether to receive the router advertisement RA messages that the router returns；
In the case where the judgment result is yes, the gateway is updated the routing aging time, and described in maintenance
The routing iinformation of router is constant.
Further, in gateway within the routing aging time according to the pre-set rule that sends routing is sent to router
Before device request RS messages, the method further includes：
The gateway receives the RA messages that the router returns, wherein, carry the routing in the RA messages
The address of device and the router send the maximum of the RA messages and send interval；
The gateway sets the routing iinformation according to the address of the router, and is set according to the maximum interval that sends
Put the routing aging time；
The gateway sets the transmission rule according to the routing aging time.
Further, it is described to include according to the maximum transmission interval setting routing aging time：
The gateway obtains the response time of the RA messages；
The gateway sets the routing aging time according to the maximum transmission interval and the response time.
Further, the gateway within the routing aging time according to according to the rule pre-set to router send router
Request RS messages include：
The gateway judges whether to receive the RA messages in maximum send in interval；
In the case where judging result is no, the gateway sends the RS messages to the router.
Further, after the gateway judges whether to receive the RA messages that the router returns, the method is also
Including：
In the case where judging result is no, the gateway continues to send the RS messages to the router.
The embodiment of the present invention additionally provides a kind of maintenance device of gateway routing iinformation, including：
A kind of gateway routing iinformation maintenance device, including：
Sending module, for sending router to router according to the pre-set rule that sends within the routing aging time
Ask RS messages；
Judgment module, for judging whether to receive the router advertisement RA messages of the router return；
Update module, in the case where the judgment result is yes, being updated, and maintaining to the routing aging time
The routing iinformation of the router is constant.
Further, described device further includes：
Receiving module, for being sent in gateway within the routing aging time according to the pre-set rule that sends to router
Before router solicitation RS messages, the RA messages that the router returns are received, wherein, in the RA messages described in carrying
The address of router and the router send the maximum of the RA messages and send interval；
First setup module, for setting the routing iinformation according to the address of the router, and according to the maximum
It sends and is arranged at intervals the routing aging time；
Second setup module, for setting the transmission rule according to the routing aging time.
Further, first setup module includes：
Acquisition submodule, for obtaining the response time of the RA messages；
Submodule is set, for maximum sending interval and when the response time sets the routing aging according to described
Between.
Further, the sending module includes：
Judging submodule, for judging whether to receive the RA messages in maximum send in interval；
In the case of being no in judging result, the RS messages are sent to the router for sending submodule.
The embodiment of the present invention additionally provides a kind of maintenance system of gateway routing iinformation, including gateway and router, wherein,
The gateway, for sending router to router according to the pre-set rule that sends within the routing aging time
Ask RS messages；Judge whether to receive the router advertisement RA messages that the router returns；In the feelings that judging result is yes
Under condition, the gateway is updated the routing aging time, and maintains the routing iinformation of the router constant；
The router for receiving the RS messages that the gateway is sent, and returns to the RA messages.
By the above method, gateway to router before ageing time by actively sending RS request messages, to obtain
The RA messages that router returns, so as to effectively maintain routing iinformation.
Figure of description
Fig. 1 is a kind of gateway route information maintaining method flow chart that the embodiment of the present invention one provides；
Fig. 2 is a kind of gateway routing iinformation maintenance device block diagram one provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of gateway routing iinformation maintenance device block diagram two provided by Embodiment 2 of the present invention；
Fig. 4 is a kind of gateway routing iinformation maintenance device block diagram three provided by Embodiment 2 of the present invention；
Fig. 5 is a kind of gateway routing iinformation maintenance device block diagram four provided by Embodiment 2 of the present invention；
Fig. 6 is a kind of gateway routing iinformation maintenance system block diagram that the embodiment of the present invention three provides；
Fig. 7 is a kind of gateway route information maintaining method flow chart that the embodiment of the present invention five provides.
Specific embodiment
Below by drawings and examples, technical scheme is described in further detail.
Embodiment one
The embodiment of the present invention one provides a kind of gateway route information maintaining method, and Fig. 1 is that the embodiment of the present invention one provides
A kind of gateway route information maintaining method flow chart, as shown in Figure 1, this method comprises the following steps：
Step S102, gateway send router according to the pre-set rule that sends within the routing aging time to router
Ask RS messages；
Step S104, the gateway judge whether to receive the router advertisement RA messages of router return；
Step S106, in the case where the judgment result is yes, the gateway are updated the routing aging time, and maintain
The routing iinformation of the router is constant.
By the above method, gateway to router before ageing time by actively sending RS request messages, to obtain
The RA messages that router returns, so as to effectively maintain routing iinformation.
Further, in gateway within the routing aging time according to the pre-set rule that sends routing is sent to router
Before device request RS messages, this method further includes：
The gateway receive the router return the RA messages, wherein, carried in the RA messages address of the router with
And the router sends the maximum of the RA messages and sends interval；
The gateway sets the routing iinformation according to the address of the router, and is sent according to the maximum and be arranged at intervals the routing
Ageing time；
The gateway sets the transmission regular according to the routing aging time.
Standard provides that home gateway aging duration (T_Lifetime) can be set as router cycle transmission RA message most
Big time interval duration (MaxRtrAdvInterval) is before -9000 seconds.But the acquiescence of suggestion aging duration is proposed simultaneously
It is worth for 3*MaxRtrAdvInterval.That is for most of and aging duration (T_Lifetime) is not configured
Router docking home gateway for, 2 roads can be at least received in the cycle in an aging duration (T_Lifetime)
The RA messages sent by the device cycle (T_Interval_RA).
Therefore, in the case where gateway is using the aging duration of standard suggestion, design home gateway week of the embodiment of the present invention
It is 1/2T_Lifetime that phase, which sends RS durations T_Interval_RS, is so designed that and has the advantage that in normal conditions home network
Before pass cycle transmission RS is not triggered also, the cycle RA message of router has arrived at, and home gateway would not be again to uplink network
RS messages are sent, reduce impact of the home gateway for network.
In an optional embodiment, including but not limited to using following two strategies：
I) 1/2T_Lifetime is starting, and 3/4T_Lifetime reissues one.
II) 1/2T_Lifetime is starting, and 5/8,6/8,7/8, T_Lifetime respectively reissues one.
From the two strategies as can be seen that scheme I considers to design to network-impacting is minimum；And scheme II is then
It is more from Network Packet Loss angle is avoided to consider.Scheme II is at first glance appeared to be can be bigger to network-impacting than scheme I
(because the message number sent is more), as long as but actually we design a protection mechanism, it is ensured that and what is sent is each
A RS bags can allow router to have enough time processing, and respond RA messages, to terminate subsequent flow of transmitting messages, so that
Scheme II need to only not send a RS message equally into network to proper network in the case of packet loss, for network impact not
It can increase.
Standard provides that the RS messages that router sends home gateway will be 0 to MAX_RA_DELAY_TIME (MAX_
RA_DELAY_TIME suggests it being 5 seconds in a standard) make the responses of RA messages.That is we need the base in scheme II
Increase on plinth, continuously transmitting the time interval between two RS messages needs to be more than or equal to 5 seconds.So ensure that
The transmission times of RS, and it is effectively reduced impact of the design for network.
Certainly, in the case of the aging duration outside gateway is suggested using standard, such as a length of 4* during setting aging
Max Rtr AdvInterval, 5*Max Rtr Adv Interval etc. or exactly equal to Max Rtr Adv
Interval, we still can select above-mentioned strategy or according to self-defined strategy.
Further, this includes according to maximum transmission interval setting routing aging time：
The gateway obtains the response time of the RA messages；
The gateway sends interval according to the maximum and the response time sets the routing aging time.
We can design the routing aging time slightly larger than maximum transmission interval and response time, can so ensure such as
In the case that fruit could not receive the RA messages that router is actively sent in the maximum transmission interval of setting, gateway actively transmission
It goes out after RS messages, the RA messages that router responds can be received under normal circumstances.
Further, the gateway within the routing aging time according to according to the rule pre-set to router send router please
RS messages is asked to include：
The gateway, which judges whether to send in interval in the maximum, receives the RA messages；
In the case where judging result is no, which sends the RS messages to the router.
Further, after the gateway judges whether to receive the RA messages of router return, this method further includes：
In the case where judging result is no, which continues to send the RS messages to the router.
Embodiment two
The embodiment of the present invention two provides a kind of gateway routing iinformation maintenance device, and Fig. 2 is that the embodiment of the present invention two provides
A kind of gateway routing iinformation maintenance device block diagram one, as shown in Fig. 2, the device includes：
Sending module 22, for sending routing to router according to the pre-set rule that sends within the routing aging time
Device asks RS messages；
Judgment module 24, for judging whether to receive the router advertisement RA messages of router return；
Update module 26, in the case where the judgment result is yes, being updated, and maintaining to the routing aging time
The routing iinformation of the router is constant.
Further, Fig. 3 is a kind of gateway routing iinformation maintenance device block diagram two provided by Embodiment 2 of the present invention, is such as schemed
Shown in 3, which further includes：
Receiving module 32, for being sent out in gateway within the routing aging time according to the pre-set rule that sends to router
Before sending router solicitation RS messages, the RA messages of router return are received, wherein, carry the router in the RA messages
Address and the router send the maximum of the RA messages and send interval；
First setup module 34 for setting the routing iinformation according to the address of the router, and is sent according to the maximum
It is arranged at intervals the routing aging time；
Second setup module 36, for setting the transmission regular according to the routing aging time.
Further, Fig. 4 is a kind of gateway routing iinformation maintenance device block diagram three provided by Embodiment 2 of the present invention, is such as schemed
Shown in 4, which includes：
Acquisition submodule 42, for obtaining the response time of the RA messages；
Submodule 44 is set, for setting the routing aging time according to maximum transmission interval and the response time.
Further, Fig. 5 is a kind of gateway routing iinformation maintenance device block diagram four provided by Embodiment 2 of the present invention, is such as schemed
Shown in 5, which includes：
Judging submodule 52 receives the RA messages for judging whether to send in interval in the maximum；
In the case of being no in judging result, the RS messages are sent to the router for sending submodule 54.
Embodiment three
The embodiment of the present invention three provides a kind of gateway routing iinformation maintenance system, and Fig. 6 is that the embodiment of the present invention three provides
A kind of gateway routing iinformation maintenance system block diagram, as shown in fig. 6, the system include gateway 62 and router 64, wherein,
The gateway 62, for sending router to router according to the pre-set rule that sends within the routing aging time
Ask RS messages；Judge whether to receive the router advertisement RA messages that the router returns；In the situation that judging result is yes
Under, which is updated the routing aging time, and maintains the routing iinformation of the router constant；
The router 64 for receiving the RS messages of gateway transmission, and returns to the RA messages.
Example IV
The embodiment of the present invention four additionally provides a kind of storage medium.Optionally, in the present embodiment four, above-mentioned storage is situated between
Matter can be configured to storage for performing the program code of following steps：
S1, gateway send router solicitation RS according to the pre-set rule that sends within the routing aging time to router
Message；
S2, the gateway judge whether to receive the router advertisement RA messages of router return；
S3, in the case where the judgment result is yes, the gateway are updated the routing aging time, and maintain the routing
The routing iinformation of device is constant.
Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only memory (ROM,
Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or
The various media that can store program code such as CD.
Optionally, in the present embodiment, processor performs above-mentioned steps according to stored program code in storage medium
S1, S2 and S3.
Optionally, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment
Example, details are not described herein for the present embodiment.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Computing device realize that they can concentrate on single computing device or be distributed in multiple computing devices and be formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Performed in the storage device by computing device, and in some cases, can be performed with the order being different from herein shown in
The step of going out or describing they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.It to be combined in this way, the present invention is not limited to any specific hardware and softwares.
Embodiment five
Fig. 7 is a kind of gateway route information maintaining method flow chart that the embodiment of the present invention five provides, as shown in fig. 7, should
Method includes the following steps：
Step S701, home gateway send RS messages to router；
Step S702, home gateway receive the RA messages returned, and maximum send of the message in RA messages is arranged at intervals
Ageing time T, wherein, RA messages of the T equal to 1 times is maximum to send interval；
Step S703, it is T/2 durations that home gateway, which sets timer,；
Step S704, home gateway judge whether to receive the RA messages of router response before timer expiry,
As a result it is in the case of being, return to step S702 in the case where result is no, enters step S705；
Step S705, sends RS request messages, and setting timer is T/4 durations；
Step S706, home gateway judge whether to receive the RA messages of router response before timer expiry,
As a result it is in the case of being, return to step S702 in the case where result is no, enters step S707；
Step S707, home gateway judge whether to receive the RA messages of router response before ageing time T, tie
In the case that fruit is is, S702 is entered step, in the case where result is no, enters step S708；
Step S708, aging routing iinformation restart route requests flow.
What is be somebody's turn to do above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member for, on the premise of core technical features of the present invention are not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of gateway route information maintaining method, which is characterized in that including：
Gateway sends router solicitation RS messages according to the pre-set rule that sends within the routing aging time to router；
The gateway judges whether to receive the router advertisement RA messages that the router returns；
In the case where the judgment result is yes, the gateway is updated the routing aging time, and maintains the routing
The routing iinformation of device is constant.
2. the method as described in claim 1, which is characterized in that gateway within the routing aging time according to pre-set hair
Sending rule, the method further includes before router transmission router solicitation RS messages：
The gateway receives the RA messages that the router returns, wherein, carry the router in the RA messages
Address and the router send the maximum of the RA messages and send interval；
The gateway sets the routing iinformation according to the address of the router, and is arranged at intervals institute according to maximum send
State the routing aging time；
The gateway sets the transmission rule according to the routing aging time.
3. method as claimed in claim 2, which is characterized in that described to be arranged at intervals the routing always according to maximum send
Changing the time includes：
The gateway obtains the response time of the RA messages；
The gateway sets the routing aging time according to the maximum transmission interval and the response time.
4. method as claimed in claim 3, which is characterized in that the gateway is within the routing aging time according to pre-set
Rule sends router solicitation RS messages to router to be included：
The gateway judges whether to receive the RA messages in maximum send in interval；
In the case where judging result is no, the gateway sends the RS messages to the router.
5. the method as described in claim 1-4 is any, which is characterized in that judge whether to receive the routing in the gateway
After the RA messages that device returns, the method further includes：
In the case where judging result is no, the gateway continues to send the RS messages to the router.
6. a kind of gateway routing iinformation maintenance device, which is characterized in that including：
Sending module, for sending router solicitation to router according to the pre-set rule that sends within the routing aging time
RS messages；
Judgment module, for judging whether to receive the router advertisement RA messages of the router return；
Update module, in the case where the judgment result is yes, being updated to the routing aging time, and described in maintenance
The routing iinformation of router is constant.
7. device as claimed in claim 6, which is characterized in that described device further includes：
Receiving module, for sending routing to router according to the pre-set rule that sends within the routing aging time in gateway
Before device request RS messages, the RA messages that the router returns are received, wherein, carry the routing in the RA messages
The address of device and the router send the maximum of the RA messages and send interval；
First setup module, for setting the routing iinformation according to the address of the router, and according to the maximum transmission
It is arranged at intervals the routing aging time；
Second setup module, for setting the transmission rule according to the routing aging time.
8. device as claimed in claim 7, which is characterized in that first setup module includes：
Acquisition submodule, for obtaining the response time of the RA messages；
Submodule is set, for setting the routing aging time according to the maximum transmission interval and the response time.
9. device as claimed in claim 8, which is characterized in that the sending module includes：
Judging submodule, for judging whether to receive the RA messages in maximum send in interval；
In the case of being no in judging result, the RS messages are sent to the router for sending submodule.
10. a kind of gateway routing iinformation maintenance system, which is characterized in that including gateway and router, wherein,
The gateway, for sending router solicitation to router according to the pre-set rule that sends within the routing aging time
RS messages；Judge whether to receive the router advertisement RA messages that the router returns；In the case where the judgment result is yes,
The gateway is updated the routing aging time, and maintains the routing iinformation of the router constant；
The router for receiving the RS messages that the gateway is sent, and returns to the RA messages.
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| CN103222318A (en) * | 2011-06-23 | 2013-07-24 | 华为技术有限公司 | Method, gateway and system for obtaining time of timer |
| CN105591920A (en) * | 2015-09-15 | 2016-05-18 | 杭州华三通信技术有限公司 | IRDP-based RA message processing method and device |
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| CN109327398A (en) * | 2018-11-21 | 2019-02-12 | 新华三技术有限公司 | A kind of method and device preventing packet loss |
| CN109327398B (en) * | 2018-11-21 | 2021-05-28 | 新华三技术有限公司 | Method and device for preventing packet loss |
| CN110401730A (en) * | 2019-07-25 | 2019-11-01 | 华为技术有限公司 | IP address generation method and device |
| CN110401730B (en) * | 2019-07-25 | 2021-06-29 | 华为技术有限公司 | IP address generation method and device |
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