CN109039889A - A kind of message forwarding method and device - Google Patents

A kind of message forwarding method and device Download PDF

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Publication number
CN109039889A
CN109039889A CN201810943205.1A CN201810943205A CN109039889A CN 109039889 A CN109039889 A CN 109039889A CN 201810943205 A CN201810943205 A CN 201810943205A CN 109039889 A CN109039889 A CN 109039889A
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CN
China
Prior art keywords
member device
vrrp
backup group
equipment
session entry
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CN201810943205.1A
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Chinese (zh)
Inventor
王春磊
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New H3C Security Technologies Co Ltd
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New H3C Security Technologies Co Ltd
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Priority to CN201810943205.1A priority Critical patent/CN109039889A/en
Publication of CN109039889A publication Critical patent/CN109039889A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/22Alternate routing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/14Routing performance; Theoretical aspects
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/28Routing or path finding of packets in data switching networks using route fault recovery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/58Association of routers
    • H04L45/586Association of routers of virtual routers

Abstract

The embodiment of the present application provides a kind of message forwarding method and device, it is related to field of communication technology, applied to the first member device in VRRP networking, VRRP networking further includes the second member device with the composition VRRP networking of the first member device, first member device, the second member device belong to identical VRRP backup group, and the above method includes: the session entry for receiving the second member device and being sent by session backup link;When detecting that the second member device breaks down, the first member device of setting is the main equipment of VRRP backup group;After receiving message, in the session entry that the session entry and the second member device that the first member device itself generates are sent, the session entry with the message matching received is determined;According to identified session entry, the message received is forwarded.When E-Packeting using scheme provided by the embodiments of the present application, it is capable of providing the link of high reliability.

Description

A kind of message forwarding method and device
Technical field
This application involves fields of communication technology, more particularly to a kind of message forwarding method and device.
Background technique
With the fast development of the communication technology, communication network have become people work, life in indispensable a part. In a communication network, default gateway is user configuration network, progress network operation provides very big convenience, reliable to link for this Property has gone out high requirement.
Therefore, when user E-Packets in a communication network, the link how to provide high reliability for user becomes needs It solves the problems, such as.
Summary of the invention
The embodiment of the present application is designed to provide a kind of message forwarding method and device, can mention when E-Packeting For the link of high reliability.Specific technical solution is as follows:
In a first aspect, the embodiment of the present application provides a kind of message forwarding method, it is applied to Virtual Router Redundancy Protocol The first member device in VRRP networking, the VRRP networking further include forming the VRRP networking with first member device The second member device, first member device, the second member device belong to identical VRRP backup group, which comprises
Receive the session entry that second member device is sent by session backup link, wherein the session backup Link is the link for being used for transmission session entry between first member device and the second member device;
When detecting that second member device breaks down, it is VRRP backup group that first member device, which is arranged, Main equipment;
After receiving message, in the session entry and second member device that first member device itself generates In the session entry of transmission, the session entry with the message matching received is determined;
According to identified session entry, the message received is forwarded.
Second aspect, the embodiment of the present application provide a kind of apparatus for forwarding message, applied to the first one-tenth in VRRP networking Member's equipment, the VRRP networking further includes the second member device that the VRRP networking is formed with first member device, institute State the first member device, the second member device belongs to identical VRRP backup group, described device includes:
List item receiving module, the session entry sent for receiving second member device by session backup link, Wherein, the session backup link is the chain for being used for transmission session entry between first member device and the second member device Road;
Equipment setup module, for first member to be arranged when detecting that second member device breaks down Equipment is the main equipment of VRRP backup group;
List item determining module, for after receiving message, in the session entry that first member device itself generates In the session entry sent with second member device, the session entry with the message matching received is determined;
Packet forwarding module, for forwarding the message received according to identified session entry.
The third aspect, the embodiment of the present application provide a kind of electronic equipment, and the electronic equipment is as in VRRP networking First member device, the VRRP networking further include that the second member for forming the VRRP networking with first member device sets Standby, first member device, the second member device belong to identical VRRP backup group, and first member device includes: processing Device and machine readable storage medium, the machine readable storage medium, which is stored with, can be held by the machine that the processor executes Row instruction, the processor are promoted by the machine-executable instruction: realizing message forwarding method described in the embodiment of the present application Step.
Fourth aspect, the embodiment of the present application provide a kind of machine readable storage medium, the machine readable storage medium For the machine readable storage medium in the first member device in VRRP networking, the VRRP networking further includes and first member Equipment forms the second member device of the VRRP networking, and first member device, the second member device belong to identical VRRP Backup group, the machine readable storage medium are stored with machine-executable instruction, when being called and being executed by processor, the machine Device executable instruction promotes the processor: realizing message forwarding method step described in the embodiment of the present application.
As seen from the above, in scheme provided by the embodiments of the present application, the first member device and the second member device belong to phase Same VRRP (Virtual Router Redundancy Protocol, Virtual Router Redundancy Protocol) backup group, the first member Equipment received by session backup link, the session entry that generates on the second member device, that is, main equipment of backup, therefore, when the When two member devices break down, the first member device is able to detect that the second member device breaks down.In this case, The main equipment that itself is VRRP backup group is arranged in one member device, is E-Packeted by the first member device.Since the first member sets The standby session entry for having backed up the second member device, therefore, when E-Packeting, even if the second member device in network goes out Existing failure, can still be E-Packeted by the first member device, seamless connection when E-Packeting be realized, so that providing height can By the link of property.
In addition, being to send session entry by session backup link between the first member device and the second member device , therefore, the backup of session entry can be rapidly completed between two member devices, thus be conducive to improve E-Packet at Function probability.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of the first message forwarding method provided by the embodiments of the present application;
Fig. 2 is the flow diagram of second of message forwarding method provided by the embodiments of the present application;
Fig. 3 is the flow diagram of the third message forwarding method provided by the embodiments of the present application;
Fig. 4 is the first networking structure schematic diagram provided by the embodiments of the present application;
Fig. 5 is second of networking structure schematic diagram provided by the embodiments of the present application;
Fig. 6 is a kind of structural schematic diagram of apparatus for forwarding message provided by the embodiments of the present application;
Fig. 7 is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall in the protection scope of this application.
Due to when user E-Packets in a communication network in the prior art, needing to provide the chain of high reliability for user Road.In addition, when above-mentioned communication network is VRRP networking, since the member device in VRRP networking is independent according to reception The corresponding session entry of message creation message arrived, therefore, by it after a member device in VRRP networking breaks down When his member device is responsible for E-Packeting, the member device since above-mentioned failure being not present in other member devices has been created Session entry, to cause message to be dropped after receiving message because session entry can not be found, suspension occur Situation.In view of the foregoing, the embodiment of the present application provides a kind of message forwarding method and device.
In one embodiment of the application, a kind of message forwarding method is provided, applied to the first one-tenth in VRRP networking Member's equipment, VRRP networking further include the second member device with the composition VRRP networking of the first member device, the first member device, the Two member devices belong to identical VRRP backup group, and the above method includes:
Receive the session entry that the second member device is sent by session backup link, wherein session backup link is to use In the link for transmitting session entry between the first member device and the second member device;
When detecting that the second member device breaks down, the first member device of setting is the main equipment of VRRP backup group;
After receiving message, in the meeting of the first member device itself session entry generated and the transmission of the second member device It talks about in list item, determines the session entry with the message matching received;
According to identified session entry, the message received is forwarded.
As seen from the above, in scheme provided in this embodiment, the first member device and the second member device belong to identical VRRP backup group, the conversational list that the first member device is received by session backup link, backup generates on the second member device , therefore, when the second member device breaks down, the first member device is able to detect that the second member device breaks down, In this case, the main equipment that itself is VRRP backup group is arranged in the first member device, is E-Packeted by the first member device.By The session entry of the second member device is had backed up in the first member device, therefore, when E-Packeting, even if in network Two member devices break down, and can still be E-Packeted by the first member device, realize seamless connection when E-Packeting, To provide the link of high reliability.
In addition, being to send session entry by session backup link between the first member device and the second member device , it is, realizing session entry backup by session backup link.Therefore,
On the one hand, the second member device in VRRP networking is responsible for E-Packeting after breaking down by the first member device When, the session entry sent due to having backed up the second member device in the first member device by session backup link, First member device will not cause message to be dropped due to that can not find session entry;
On the other hand, it when sending session entry by session backup link, can be rapidly completed between two member devices The backup of session entry, to be conducive to improve the probability of success to E-Packet;
In another aspect, since session backup link is used exclusively for sending out between the first member device and the second member device Session entry is sent, it therefore, will not be with other industry between the first member device and the second member device when transmission session list item Resource is fought in business, so as to fast implement session entry backup, is conducive to the stability for improving network, and be conducive to provide The fluency of message forwarding.
Message forwarding method provided by the embodiments of the present application is described in detail below by specific embodiment.
Fig. 1 is the flow diagram of the first message forwarding method provided by the embodiments of the present application, and this method is applied to The first member device in VRRP networking, above-mentioned VRRP networking further include the second one-tenth with the composition VRRP networking of the first member device Member's equipment, the first member device, the second member device belong to identical VRRP backup group.
Wherein, VRRP backup group refers to, by networking set of router (including Master, that is, active router and Several Backup, that is, backup routers) it is organized into a virtual router, referred to as a backup group.
In a VRRP backup group, generally by a member device as main equipment, other member devices are used as standby set It is standby.Only have main equipment that could be used to E-Packet in VRRP backup group, standby equipment is in listening state, does not E-Packet.
Furthermore same member device may belong to different VRRP backup groups.For example, including the first member device and second Two VRRP backup groups of member device, VRRP backup group can be with are as follows: the first member device is that main equipment, the second member set The standby backup group for standby equipment, another VRRP backup group can be with are as follows: the first member device is standby equipment, the second member device is The backup group of main equipment.
When due to carrying out message forwarding, it may be necessary to which forwarding is uplink message, it is also possible to which need to forward is downlink report Text, for this purpose, identical VRRP backup group belonging to the first member device, the second member device may exist for the upper of uplink message Row backup group and downlink backup group for downlink message.
Specifically, the above method includes:
S101: the session entry that the second member device is sent by session backup link is received.
Wherein, session backup link is the chain for being used for transmission session entry between the first member device and the second member device Road.
When second member device is main equipment in above-mentioned VRRP backup group, it is responsible for E-Packeting, in the second member device It receives when E-Packeting after message, if the local corresponding session entry of not stored received message of the second member device, the Two member devices can create the corresponding session entry of received message according to the message that receives, then according to being created Session entry E-Packets.In addition, since the second member device has created the corresponding session entry of above-mentioned received message, because This can be forwarded when the second member device receives the reversed message of above-mentioned message according to above-mentioned created session entry Reversed message.
Furthermore when to guarantee to be responsible for E-Packeting by the first member device after the second member device breaks down, Bu Huiyin To lack session entry and dropping packets, after the received message of the second member device forwarding institute, session backup link can be passed through The session entry created is sent to the first member device, the session created by the first member device to the second member device List item is backed up.
S102: when detecting that the second member device breaks down, the first member device of setting is the master of VRRP backup group Equipment.
Second member device is responsible for forwarding as the main equipment in above-mentioned VRRP backup group in the case where without failure Message, at this moment the first member device is in listening state as the standby equipment in the VRRP backup group, does not E-Packet, for example, It can monitor whether main equipment is working normally, can specifically judge whether the state of main equipment is normal by VRRP message.
Specifically, can pass through when whether the first member device the second member device of detection breaks down and detect above-mentioned meeting Whether words backup link is turned off to whether the second member device of detection breaks down.For example, detecting that session backup link is disconnected When opening, it is possible to determine that the second member device breaks down.
Since each member device in VRRP networking is when E-Packeting, there are uplinks and downlink, therefore, Second member device is responsible for during E-Packeting as the main equipment of above-mentioned VRRP backup group, if the second member device is upper Line link or downlink change, and may be considered the failure of the second member device appearance.
Again since the description from front is it is found that identical VRRP backup group belonging to the first member device, the second member device It may include: uplink backup group and downlink backup group, in consideration of it, the first member device is being examined in one embodiment of the application When measuring the failure of the second member device, the first member device of setting is the main equipment of VRRP backup group, can be by following Mode is realized:
First member device obtains monitoring information, and characterizes in the second member device in above-mentioned monitoring information for forwarding report When the uplink and/or downlink of text change, the first member device of setting is uplink backup group and downlink backup group Main equipment.
Wherein, above-mentioned monitoring information characterizes uplink and/or downlink chain in the second member device for E-Packeting Whether road changes.
Member device can realize VRRP by software module, and above-mentioned software module is properly termed as: VRRP application module, again Since VRRP backup group includes uplink backup group and downlink backup group, it is possible to think that above-mentioned VRRP application module management is above-mentioned Two backup groups of uplink backup group and downlink backup group.
Based on this, above-mentioned monitoring information be can be by the software module for being monitored to information (hereinafter referred to as: monitoring Module) obtain.After guaranteeing that the second member device breaks down, main equipment in uplink backup group and downlink backup group from Second member device switches to the first member device, can also be arranged one for carrying out the software module of information linkage (hereinafter referred to as For Track module).
In application process, being associated between Track module and monitoring modular can be established by a status information, it is above-mentioned Status information is properly termed as Track, indicates the monitoring result of monitoring modular with the presence or absence of abnormal.Furthermore it is also possible to pass through upper It states Track and establishes being associated between Track module and above-mentioned VRRP application module.
Due to establishing above-mentioned association, when the monitoring result of monitoring modular changes, above-mentioned Track can become Change, Track module perceive Track change after, above-mentioned VRRP application module can be notified to respond in time.Due to Above-mentioned VRRP application module corresponds to uplink backup group and downlink backup group, it is thereby achieved that the connection of above-mentioned two backup group Dynamic variation.
Specifically, the information that above-mentioned monitoring modular is monitored may include: the next-hop of the second member device uplink Whether address is reachable, whether the second member device downlink next hop address is reachable etc..
It is assumed that above-mentioned monitoring modular detects that the next hop address of the second member device uplink is unreachable, then monitor Module can determine that the uplink of the second member device breaks down, and may further think that event occurs in the second member device Barrier.Monitoring modular generates the status information that the second member device of characterization breaks down, and ties above-mentioned status information as monitoring Fruit is sent to Track module.Above-mentioned status information is sent to VRRP application module by Track module.VRRP Application module knows that the second member device breaks down according to the Track item received, to uplink backup group and downlink backup group It is updated, the first member device is switched to main equipment by standby equipment.
S103: after receiving message, in the session entry and the second member device hair that the first member device itself generates In the session entry sent, the session entry with the message matching received is determined.
From S101 it is found that the session entry that the second member device can be created is sent to the first member device, and When main equipment of one member device as above-mentioned VRRP backup group, being responsible for can be also according to the report received during E-Packeting Text creation session entry, therefore, the first member device can locally be stored with the first member device itself creation session entry and The session entry that second member device is sent.It, can be according to the first member after the first member device receives message based on this The session entry that equipment is locally stored determines the session entry with the message matching received.
S104: according to identified session entry, the message received is forwarded.
When above-mentioned S103 determines the session entry for the message matching that the first member device is locally stored and receives, S104 directly can forward the message received according to the above-mentioned matched session entry that the first member device is locally stored.Upper State S103 determine the first member device locally the session entry of the not stored message matching for having and receiving when, the first member of S104 Equipment can create the corresponding session entry of received message, and according to the conversational list created according to the message received The received message of item forwarding.
After guaranteeing that the second member device releases failure, it is responsible for E-Packeting as the main equipment of VRRP backup group again When, it locally will not lack session entry because of the second member device and message is caused to be dropped.In one embodiment of the application, After detecting that the second member device releases failure, newly created session entry is sent to the second one-tenth by session backup link Member's equipment, wherein above-mentioned newly created session entry are as follows: the first member device is created during the second member device is in malfunction The session entry built.It, can be at the second one-tenth after such second member device receives the session entry of the first member device transmission The session entry received is locally stored in member's equipment.
In addition, over time, the second member device needs to carry out aging process to the session entry created, it is Guarantee that the session entry stored in the first member device and the second member device is consistent, in one embodiment of the application, second Member device can also send conversation aging notice, the first member device to the first member device by above-mentioned session backup link After obtaining the conversation aging notice that the second member device is sent by session backup link, judge conversation aging notice instruction to Whether the holding duration of aging session entry reaches preset duration;If it is, deleting above-mentioned session entry to be aging.
Specifically, above-mentioned preset duration can carry the session entry sent in the second member device to the first member device In.
As seen from the above, in the scheme that above-mentioned each embodiment provides, the first member device and the second member device belong to Identical VRRP backup group, the first member device are received by session backup link, are backed up on the second member device, that is, main equipment The session entry of generation, therefore, when the second member device breaks down, the first member device is able to detect that the second member sets It is standby to break down.In this case, the main equipment that itself is VRRP backup group is arranged in the first member device, by the first member device It E-Packets.Since the first member device has backed up the session entry of the second member device, when E-Packeting, i.e., So that the second member device in network is broken down, can still be E-Packeted by the first member device, realization E-Packets When seamless connection, to provide the link of high reliability.
In addition, being to send session entry by session backup link between the first member device and the second member device , it is, realizing session entry backup by session backup link.Therefore,
On the one hand, the second member device in VRRP networking is responsible for E-Packeting after breaking down by the first member device When, the session entry sent due to having backed up the second member device in the first member device by session backup link, First member device will not cause message to be dropped due to that can not find session entry;
On the other hand, it when sending session entry by session backup link, can be rapidly completed between two member devices The backup of session entry, to be conducive to improve the probability of success to E-Packet;
In another aspect, since session backup link is used exclusively for sending out between the first member device and the second member device Session entry is sent, it therefore, will not be with other industry between the first member device and the second member device when transmission session list item Resource is fought in business, so as to fast implement session entry backup, is conducive to the stability for improving network, and be conducive to provide The fluency of message forwarding.
In one embodiment of the application, referring to fig. 2, the flow diagram of second of message forwarding method is provided, this In embodiment, the first member device, the second member device belong to first kind VRRP backup group, wherein first kind VRRP is standby The first member device is standby equipment in part group, the second member device is main equipment.
Based on the above situation, in above-mentioned steps S102, detect the second member device break down when, setting first at Member's equipment is the main equipment of VRRP backup group, can be realized by following S102A.
S102A: when detecting that the second member device breaks down, the first member device itself is switched to by standby equipment Main equipment.
A type of VRRP backup group is belonged to by the first member device in this present embodiment, and in the VRRP of this type In backup group, the first member device or be standby equipment or be main equipment, therefore, can above situation be referred to as the first member Equipment works under active-standby mode.
In addition, since the first member device belongs to this type of backup group of first kind VRRP backup group, it is, First kind VRRP backup group is in running order backup group, and each member sets in switching first kind VRRP backup group in this way After standby work role, first kind VRRP backup group can be still within working condition.And after work role switching, VRRP backup The first member device is main equipment in group, therefore rear extended meeting is responsible for E-Packeting by the first member device.Although as it can be seen that the second one-tenth There is failure in member's equipment, but in the case where the first member device can work normally, can still need to forward Message provides reliable link and carries out message forwarding.
In one embodiment of the application, referring to Fig. 3, the flow diagram of the third message forwarding method is provided, this In embodiment, the first member device, the second member device belong to first kind VRRP backup group and Second Type VRRP backup group, Wherein, the first member device is standby equipment in first kind VRRP backup group, the second member device is main equipment, Second Type The first member device is main equipment in VRRP backup group, the second member device is standby equipment.
In this case it is considered that first kind VRRP backup group and Second Type VRRP backup group are in work shape State.Again due to the main equipment that the second member device is first kind VRRP backup group, the first member device is the 2nd VRRP backup The main equipment of group, therefore, the first member device and the second member device are responsible for E-Packeting, such working method, can be with Referred to as the first member device and the second member device are worked in a manner of load balancing.
In addition, the first member device and the second member device are used to turn in the case where normal work in the present embodiment Transmit messages text, thus can deserve to be called state in the case of the first member device, the second member device work under double primary runner.
Based on the above situation, in above-mentioned steps S102, detect the second member device break down when, setting first at Member's equipment is the main equipment of VRRP backup group, can be realized by following S102B.
S102B: when detecting that the second member device breaks down, first kind VRRP is set by the first member device The main equipment of backup group.
After setting the first member device to the main equipment of first kind VRRP backup group, the in running order first kind Main equipment is the first equipment in type VRRP backup group and Second Type backup group, in this way for first kind VRRP backup group and It is to be responsible for E-Packeting by the first member device for Second Type VRRP backup group.In this case, although the second one-tenth There is failure in member's equipment, but in the case where the first member device can work normally, can still need to forward Message provides reliable link and carries out message forwarding.
Below in conjunction with Fig. 4 and two VRRP networking structure schematic diagram shown in fig. 5, to report provided by the embodiments of the present application Literary retransmission method is illustrated.
Example one
As shown in figure 4, the business interface of two firewall boxes FW_A, FW_B all work in the third layer of network, FW_A, The uplink and downlink of FW_B is separately connected Layer 2 switch, referred to as upstream switch and Downlink Switch.Uplink is handed over It changes planes and connects the access point of operator, operator is that (Internet Protocol is interconnected between network by the IP of enterprise's distribution Agreement) address be 1.1.1.1.FW_A, FW_B belong to first kind VRRP backup group, and in first kind VRRP backup group with Active-standby mode work.For FW_A as main equipment, FW_B is used as standby equipment.
Above-mentioned a type of VRRP backup group includes two first kind VRRP backup groups: uplink backup group and downlink are standby Part group, is known as: uplink VRRP backup group 1 and downlink VRRP backup group 2 individually below.For FW_A, FW_B, uplink VRRP Backup group 1 and downlink VRRP backup group 2 are in working condition.
In addition, session backup link is equipped between FW_A, FW_B, as shown in the horizontal line in Fig. 4 between FW_A, FW_B.
The workflow of VRRP networking shown in Fig. 4 is described below.
The case where FW_A is worked normally, if FW_A receives message M, and finds that FW_A is locally not stored and have message M Corresponding session entry then creates the corresponding session entry of message M, and the M that E-Packets.FW_A passes through session backup link for institute The session entry of creation is sent to FW_B and stores the session entry received after FW_B receives the session entry of FW_A transmission.
If the monitoring information that FW_B is obtained shows that the uplink of FW_A changes, then it is assumed that FW_A breaks down, then FW_B in VRRP backup group 1 is switched to main equipment and by the FW_B in VRRP backup group 2 by standby equipment by standby equipment by FW_B It is switched to main equipment.When there is the message for needing to forward in VRRP networking shown in Fig. 4 so again, since FW_B is main equipment, It is E-Packeted by FW_B.
For example, it is responsible for the case where E-Packeting in FW_B, if FW_B receives the reversed message N of above-mentioned message M, due to The corresponding session entry of message M is sent to FW_B by FW_A, and therefore, the corresponding session of message N has been locally stored in FW_B discovery List item, then directly E-Packet N.
After FW_A releases failure, since FW_B has become the main equipment of VRRP backup group, FW_A be can choose at this time For the standby equipment of VRRP backup group, in this case, if FW_A detects that FW_B breaks down, FW_A is by VRRP backup group 1 In FW_A main equipment is switched to by standby equipment and the FW_A in VRRP backup group 2 is switched to main equipment by standby equipment.In this way When there is the message for needing to forward in VRRP networking shown in Fig. 4 again, since FW_A is main equipment, E-Packeted by FW_A.
Example two
As shown in figure 5, the business interface of two firewall boxes FW_A, FW_B all work in the third layer of network, FW_A, The uplink and downlink of FW_B is separately connected Layer 2 switch, referred to as upstream switch and Downlink Switch.Uplink exchange Machine connects the access point of operator, and operator is that the IP address of enterprise's distribution is 1.1.1.1.
FW_A, FW_B belong to two kinds of VRRP backup group, in the VRRP backup group of the first seed type, set based on FW_A Standby, FW_B is standby equipment;In the VRRP backup group of second of type, FW_A is standby equipment, FW_B is main equipment.It is, FW_ A, FW_B is worked in VRRP backup group with double primary runner.
Since the VRRP backup group of above-mentioned first seed type and the VRRP backup group of second of type are in working condition, Therefore, FW_A, FW_B are worked in a manner of load balancing, it is, FW_A, FW_B are used to forward report simultaneously according to delineation of activities Text.
Since VRRP backup group includes two backup groups of uplink backup group and downlink backup group, hereinafter referred to as above-mentioned first The VRRP backup group of seed type includes: uplink VRRP backup group 1 and downlink VRRP backup group 3, the VRRP of above-mentioned second of type Backup group includes: uplink VRRP backup group 2 and downlink VRRP backup group 4.
In addition, session backup link is equipped between FW_A, FW_B, as shown in the horizontal line in Fig. 5 between FW_A, FW_B.
The workflow of networking shown in Fig. 5 is described below.
The case where FW_A, FW_B are worked normally, if FW_A receives message P, and finds that FW_A is locally not stored and have this The corresponding session entry of message P then creates the corresponding session entry of message P, and the P that E-Packets.FW_A passes through session backup chain The session entry created is sent to FW_B after FW_B receives the session entry of FW_A transmission and stores the meeting received by road Talk about list item.
In addition, if FW-B receives message Q, and find that FW_B is locally not stored and have the corresponding session entry of message Q, then Create the corresponding session entry of message Q, and the Q that E-Packets.FW-B is sent out the session entry created by session backup link After the session entry for receiving FW_B transmission is sent to FW_A, FW_A, store the session entry received.
The session synchronization that can be completed between FW_A, FW_B in this way updates, so that saving identical two in two equipment Part session entry.
If the monitoring information that FW_A is obtained shows that the downlink of FW_B changes, then it is assumed that FW_B breaks down, then FW_A in VRRP backup group 2 is switched to main equipment and by the FW_A in VRRP backup group 4 by standby equipment by standby equipment by FW_A It is switched to main equipment.It is shown in fig. 5 in this way since the main equipment into VRRP backup group 4 of VRRP backup group 1 is FW_A at this time When there is the message for needing to forward in VRRP networking again, since FW_A is main equipment, E-Packeted by FW_A.
If the monitoring information that FW_B is obtained shows that the downlink of FW_A changes, then it is assumed that FW_A breaks down, then FW_B in VRRP backup group 1 is switched to main equipment and by the FW_B in VRRP backup group 3 by standby equipment by standby equipment by FW_B It is switched to main equipment.It is shown in fig. 5 in this way since the main equipment into VRRP backup group 4 of VRRP backup group 1 is FW_B at this time When there is the message for needing to forward in VRRP networking again, since FW_B is main equipment, E-Packeted by FW_B.
For example, it is responsible for the case where E-Packeting in FW_B, if FW_B receives the reversed message R of above-mentioned message P, due to The corresponding session entry of message P is sent to FW_B by FW_A, and therefore, the corresponding session of message R has been locally stored in FW_B discovery List item, then directly E-Packet R.
Corresponding with above-mentioned message forwarding method, the embodiment of the present application also provides a kind of apparatus for forwarding message.
Fig. 6 is a kind of structural schematic diagram of apparatus for forwarding message provided by the embodiments of the present application, which is applied to VRRP The first member device in networking, the VRRP networking further include that the VRRP networking is formed with first member device Two member devices, first member device, the second member device belong to identical VRRP backup group, and described device includes:
List item receiving module 601, the conversational list sent for receiving second member device by session backup link , wherein the session backup link is to be used for transmission session entry between first member device and the second member device Link;
Equipment setup module 602, for being arranged described the first one-tenth when detecting that second member device breaks down Member's equipment is the main equipment of VRRP backup group;
List item determining module 603, for after receiving message, in the conversational list that first member device itself generates In the session entry that item and second member device are sent, the session entry with the message matching received is determined;
Packet forwarding module 604, for forwarding the message received according to identified session entry.
In one embodiment of the application, first member device, that the second member device belongs to first kind VRRP is standby Part group, wherein the first member device described in the first kind VRRP backup group is standby equipment, second member device is Main equipment;
The equipment setup module 602, specifically for by first member device itself by setting based on standby equipment switching It is standby.
In one embodiment of the application, first member device, that the second member device belongs to first kind VRRP is standby Part group and Second Type VRRP backup group, wherein the first member device described in the first kind VRRP backup group is standby sets Standby, described second member device be main equipment, the first member device described in the Second Type VRRP backup group be main equipment, Second member device is standby equipment;
The equipment setup module 602, specifically for setting the first kind VRRP for first member device The main equipment of backup group.
In one embodiment of the application, above-mentioned apparatus for forwarding message further include:
List item sending module, for being backed up by the session after detecting that second member device releases failure Newly created session entry is sent to second member device by link, wherein the newly created session entry are as follows: described The session entry of second member device the first member device creation during being in malfunction.
In one embodiment of the application, the VRRP backup group includes: uplink backup group and downlink backup group, described to set Standby setup module, comprising:
Information obtainment unit, for obtaining monitoring information, wherein the monitoring information characterizes in second member device Whether uplink and/or downlink for E-Packeting change;
Equipment setting unit, for characterizing in second member device in the monitoring information for E-Packeting When line link and/or downlink change, it is that the uplink backup group and downlink back up that first member device, which is arranged, The main equipment of group.
As seen from the above, in the scheme that above-mentioned each embodiment provides, the first member device and the second member device belong to Identical VRRP backup group, the first member device are received by session backup link, are backed up on the second member device, that is, main equipment The session entry of generation, therefore, when the second member device breaks down, the first member device is able to detect that the second member sets It is standby to break down.In this case, the main equipment that itself is VRRP backup group is arranged in the first member device, by the first member device It E-Packets.Since the first member device has backed up the session entry of the second member device, when E-Packeting, i.e., So that the second member device in network is broken down, can still be E-Packeted by the first member device, realization E-Packets When seamless connection, to provide the link of high reliability.
In addition, being to send session entry by session backup link between the first member device and the second member device , it is, realizing session entry backup by session backup link.Therefore,
On the one hand, the second member device in VRRP networking is responsible for E-Packeting after breaking down by the first member device When, the session entry sent due to having backed up the second member device in the first member device by session backup link, First member device will not cause message to be dropped due to that can not find session entry;
On the other hand, it when sending session entry by session backup link, can be rapidly completed between two member devices The backup of session entry, to be conducive to improve the probability of success to E-Packet;
In another aspect, since session backup link is used exclusively for sending out between the first member device and the second member device Session entry is sent, it therefore, will not be with other industry between the first member device and the second member device when transmission session list item Resource is fought in business, so as to fast implement session entry backup, is conducive to the stability for improving network, and be conducive to provide The fluency of message forwarding.
Corresponding with above-mentioned message forwarding method, the embodiment of the present application also provides a kind of electronic equipment.
Fig. 7 is the structural schematic diagram of a kind of electronic equipment provided by the embodiments of the present application, and the electronic equipment is as VRRP The first member device in networking, the VRRP networking further include that the VRRP networking is formed with first member device Two member devices, first member device, the second member device belong to identical VRRP backup group, the first member device packet Include: processor 701 and machine readable storage medium 702, the machine readable storage medium 702 is stored with can be by the processing The machine-executable instruction that device 701 executes, the processor 701 are promoted by the machine-executable instruction: realizing that the application is real The message forwarding method of example offer is provided.
In one embodiment of the application, a kind of message forwarding method is provided, is applied to Virtual Router Redundancy Protocol The first member device in VRRP networking, the VRRP networking further include forming the VRRP networking with first member device The second member device, first member device, the second member device belong to identical VRRP backup group, which comprises
Receive the session entry that second member device is sent by session backup link, wherein the session backup Link is the link for being used for transmission session entry between first member device and the second member device;
When detecting that second member device breaks down, it is VRRP backup group that first member device, which is arranged, Main equipment;
After receiving message, in the session entry and second member device that first member device itself generates In the session entry of transmission, the session entry with the message matching received is determined;
According to identified session entry, the message received is forwarded.
It should be noted that processor 701 promoted by machine-executable instruction and the message forwarding method realized other Embodiment, identical as the embodiment that preceding method embodiment part provides, which is not described herein again.
Above-mentioned machine readable storage medium may include random access memory (Random Access Memory, RAM), It also may include nonvolatile memory (Non-Volatile Memory, NVM), for example, at least a magnetic disk storage.It is optional , machine readable storage medium can also be that at least one is located remotely from the storage device of aforementioned processor.
Above-mentioned processor can be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network Processor, NP) etc.;It can also be digital signal processor (Digital Signal Processing, DSP), it is specific integrated circuit (Application Specific Integrated Circuit, ASIC), existing It is field programmable gate array (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete Door or transistor logic, discrete hardware components.
As seen from the above, in scheme provided in this embodiment, the first member device and the second member device belong to identical VRRP backup group, the first member device is received by session backup link, backup generates on the second member device, that is, main equipment Session entry, therefore, when the second member device break down when, the first member device is able to detect that the second member device goes out Existing failure.In this case, the main equipment that itself is VRRP backup group is arranged in the first member device, is forwarded by the first member device Message.Since the first member device has backed up the session entry of the second member device, when E-Packeting, even if net The second member device in network breaks down, and can still be E-Packeted by the first member device, realizes when E-Packeting Seamless connection, to provide the link of high reliability.
In addition, being to send session entry by session backup link between the first member device and the second member device , it is, realizing session entry backup by session backup link.Therefore,
On the one hand, the second member device in VRRP networking is responsible for E-Packeting after breaking down by the first member device When, the session entry sent due to having backed up the second member device in the first member device by session backup link, First member device will not cause message to be dropped due to that can not find session entry;
On the other hand, it when sending session entry by session backup link, can be rapidly completed between two member devices The backup of session entry, to be conducive to improve the probability of success to E-Packet;
In another aspect, since session backup link is used exclusively for sending out between the first member device and the second member device Session entry is sent, it therefore, will not be with other industry between the first member device and the second member device when transmission session list item Resource is fought in business, so as to fast implement session entry backup, is conducive to the stability for improving network, and be conducive to provide The fluency of message forwarding.
Corresponding with aforementioned message forwarding method embodiment, the embodiment of the present application also provides a kind of machine readable storage Jie Matter, the machine readable storage medium are the machine readable storage medium in VRRP networking in the first member device, the VRRP Networking further includes the second member device that the VRRP networking is formed with first member device, first member device, Second member device belongs to identical VRRP backup group, and the machine readable storage medium is stored with machine-executable instruction, in quilt When processor is called and executed, the machine-executable instruction promotes the processor: realizing report provided by the embodiments of the present application Literary retransmission method.
In one embodiment of the application, a kind of message forwarding method is provided, is applied to Virtual Router Redundancy Protocol The first member device in VRRP networking, the VRRP networking further include forming the VRRP networking with first member device The second member device, first member device, the second member device belong to identical VRRP backup group, which comprises
Receive the session entry that second member device is sent by session backup link, wherein the session backup Link is the link for being used for transmission session entry between first member device and the second member device;
When detecting that second member device breaks down, it is VRRP backup group that first member device, which is arranged, Main equipment;
After receiving message, in the session entry and second member device that first member device itself generates In the session entry of transmission, the session entry with the message matching received is determined;
According to identified session entry, the message received is forwarded.
It should be noted that the other embodiments for the message forwarding method that machine-executable instruction promotes processor to realize, Identical as the embodiment that preceding method embodiment part provides, which is not described herein again.
As seen from the above, in scheme provided in this embodiment, the first member device and the second member device belong to identical VRRP backup group, the first member device is received by session backup link, backup generates on the second member device, that is, main equipment Session entry, therefore, when the second member device break down when, the first member device is able to detect that the second member device goes out Existing failure.In this case, the main equipment that itself is VRRP backup group is arranged in the first member device, is forwarded by the first member device Message.Since the first member device has backed up the session entry of the second member device, when E-Packeting, even if net The second member device in network breaks down, and can still be E-Packeted by the first member device, realizes when E-Packeting Seamless connection, to provide the link of high reliability.
In addition, being to send session entry by session backup link between the first member device and the second member device , it is, realizing session entry backup by session backup link.Therefore,
On the one hand, the second member device in VRRP networking is responsible for E-Packeting after breaking down by the first member device When, the session entry sent due to having backed up the second member device in the first member device by session backup link, First member device will not cause message to be dropped due to that can not find session entry;
On the other hand, it when sending session entry by session backup link, can be rapidly completed between two member devices The backup of session entry, to be conducive to improve the probability of success to E-Packet;
In another aspect, since session backup link is used exclusively for sending out between the first member device and the second member device Session entry is sent, it therefore, will not be with other industry between the first member device and the second member device when transmission session list item Resource is fought in business, so as to fast implement session entry backup, is conducive to the stability for improving network, and be conducive to provide The fluency of message forwarding.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device, For member device, machine readable storage medium embodiment, since it is substantially similar to the method embodiment, so the comparison of description Simply, the relevent part can refer to the partial explaination of embodiments of method.
The foregoing is merely the preferred embodiments of the application, are not intended to limit the protection scope of the application.It is all Any modification, equivalent replacement, improvement and so within spirit herein and principle are all contained in the protection scope of the application It is interior.

Claims (10)

1. a kind of message forwarding method, which is characterized in that applied to the first one-tenth in Virtual Router Redundancy Protocol VRRP networking Member's equipment, the VRRP networking further includes the second member device that the VRRP networking is formed with first member device, institute State the first member device, the second member device belongs to identical VRRP backup group, which comprises
Receive the session entry that second member device is sent by session backup link, wherein the session backup link For the link for being used for transmission session entry between first member device and the second member device;
When detecting that second member device breaks down, the master that first member device is VRRP backup group is set and is set It is standby;
After receiving message, sent in the session entry of first member device itself generation and second member device Session entry in, determine and the session entry of message matching that receives;
According to identified session entry, the message received is forwarded.
2. the method according to claim 1, wherein first member device, the second member device belong to One type VRRP backup group, wherein the first member device described in the first kind VRRP backup group is standby equipment, described the Two member devices are main equipment;
Then setting first member device is the main equipment of VRRP backup group, comprising:
First member device itself is switched to main equipment by standby equipment.
3. the method according to claim 1, wherein first member device, the second member device belong to One type VRRP backup group and Second Type VRRP backup group, wherein the first one-tenth described in the first kind VRRP backup group Member's equipment is standby equipment, second member device is main equipment, the first member described in the Second Type VRRP backup group Equipment is main equipment, second member device is standby equipment;
Then setting first member device is the main equipment of VRRP backup group, comprising:
Set first member device to the main equipment of the first kind VRRP backup group.
4. method according to claim 1-3, which is characterized in that the method also includes:
After detecting that second member device releases failure, by the session backup link by newly created session entry It is sent to second member device, wherein the newly created session entry are as follows: second member device is in failure shape The session entry of the first member device creation during state.
5. method according to any one of claim 1-3, which is characterized in that the VRRP backup group includes: that uplink is standby Part group and downlink backup group, it is described when detecting that second member device breaks down, first member device is set For the main equipment of VRRP backup group, comprising:
Obtain monitoring information, wherein the monitoring information characterizes the uplink in second member device for E-Packeting Whether road and/or downlink change;
Uplink and/or downlink hair in second member device for E-Packeting are characterized in the monitoring information When changing, the main equipment that first member device is the uplink backup group and downlink backup group is set.
6. a kind of apparatus for forwarding message, which is characterized in that applied to the first member device in VRRP networking, the VRRP networking It further include the second member device that the VRRP networking is formed with first member device, first member device, second Member device belongs to identical VRRP backup group, and described device includes:
List item receiving module, the session entry sent for receiving second member device by session backup link, wherein The session backup link is the link for being used for transmission session entry between first member device and the second member device;
Equipment setup module, for first member device to be arranged when detecting that second member device breaks down For the main equipment of VRRP backup group;
List item determining module, for the session entry and institute after receiving message, in first member device itself generation In the session entry for stating the transmission of the second member device, the session entry with the message matching received is determined;
Packet forwarding module, for forwarding the message received according to identified session entry.
7. device according to claim 6, which is characterized in that first member device, the second member device belong to One type VRRP backup group, wherein the first member device described in the first kind VRRP backup group is standby equipment, described the Two member devices are main equipment;
The equipment setup module, specifically for first member device itself is switched to main equipment by standby equipment.
8. device according to claim 6, which is characterized in that first member device, the second member device belong to One type VRRP backup group and Second Type VRRP backup group, wherein the first one-tenth described in the first kind VRRP backup group Member's equipment is standby equipment, second member device is main equipment, the first member described in the Second Type VRRP backup group Equipment is main equipment, second member device is standby equipment;
The equipment setup module, specifically for setting the first kind VRRP backup group for first member device Main equipment.
9. device a method according to any one of claims 6-8, which is characterized in that the VRRP backup group includes: that uplink is standby Part group and downlink backup group, the equipment setup module, comprising:
Information obtainment unit, for obtaining monitoring information, wherein the monitoring information characterizes to be used in second member device Whether the uplink and/or downlink to E-Packet changes;
Equipment setting unit, for characterizing the uplink in second member device for E-Packeting in the monitoring information When road and/or downlink change, it is the uplink backup group and downlink backup group that first member device, which is arranged, Main equipment.
10. a kind of electronic equipment, which is characterized in that the electronic equipment is described as the first member device in VRRP networking VRRP networking further includes the second member device that the VRRP networking is formed with first member device, and first member sets Standby, the second member device belongs to identical VRRP backup group, and first member device includes: that processor and machine readable storage are situated between Matter, the machine readable storage medium are stored with the machine-executable instruction that can be executed by the processor, the processor Promoted by the machine-executable instruction: realizing any method and step of claim 1-5.
CN201810943205.1A 2018-08-17 2018-08-17 A kind of message forwarding method and device Pending CN109039889A (en)

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Application publication date: 20181218