CN105119822A - Backup group management method and system based on VRRP (Virtual Router Redundancy Protocol) - Google Patents
Backup group management method and system based on VRRP (Virtual Router Redundancy Protocol) Download PDFInfo
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- CN105119822A CN105119822A CN201510566111.3A CN201510566111A CN105119822A CN 105119822 A CN105119822 A CN 105119822A CN 201510566111 A CN201510566111 A CN 201510566111A CN 105119822 A CN105119822 A CN 105119822A
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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
- H04L45/58—Association of routers
- H04L45/586—Association of routers of virtual routers
Abstract
The invention provides a backup group management method based on a VRRP (Virtual Router Redundancy Protocol), which is used for managing multiple groups of VRRP backup groups. The backup group management method based on the VRRP comprises the following steps of configuring a VRRP management backup group and at least one VRRP business backup group corresponding to the VRRP management backup group; setting the master and backup state of a state machine of the VRRP management backup group; and monitoring the master and backup state of the state machine of the VRRP management backup group and synchronously updating the changed master and backup state to a state machine of each VRRP business backup group when the monitored master and backup state is changed. According to the backup group management method based on the VRRP, the master and backup state of the state machine of the VRRP management backup group is synchronized to the state machine of the VRRP business backup group, and a VRRP management group decides the state of the state machine through sending one VRRP protocol message, so that the state machine of the VRRP business backup group is decided, and thus the CPU (Central Processing Unit) processing speed is improved while the network bandwidth occupied by the VRRP message is reduced. The invention also provides a backup group management system based on the VRRP.
Description
Technical field
The present invention relates to network communication technology field, particularly relate to a kind of backup group management method based on VRRP and system.
Background technology
At present, Virtual Router Redundancy Protocol (VirtualRouterRedundancyProtocol, VRRP) as the protocol for error tolerance that a kind of RFC3768 defines, be used for ensureing when the next hop router of main frame breaks down, the router broken down is replaced to carry out work by another router, thus ensure continuity and the reliability of network service, and the not perception of whole handoff procedure main frame.Multiple physical router forms a virtual router, is also VRRP backup group.Virtual router has oneself IP address, it is the IP address of a virtual router and network other devices communicatings interior, every platform runs the physical router of VRRP agreement, a VRRP active router state machine is safeguarded to each VRRP backup group, state machine mainly contains two states: master state and stand-by state, has two physical routers respectively as primary route device and standby router in the physical router that also namely each virtual router is corresponding.
Under normal circumstances, the data traffic that main frame sends is responsible for forwarding by the primary route device in VRRP backup group, if primary (Master) router failure in backup group, backup (Backup) router will not receive VRRP message, thus the state of meeting trigger backups router becomes primary, thus backup router becomes the new movable Master router of in backup group one, continue to provide route service to the main frame in network, thus the main frame realized in network communicates with external network incessantly.And whether router is broken down and to be realized by Master router timed sending VRRP message, when Master router normally works, it can send VRRP message at set intervals, to notify other backup router, Master router is in normal operating conditions, if Backup router does not receive the message from active router within a period of time, then think and Master router fault can transfer the state of oneself to Master router.
But, when being configured with multiple VRRP backup group, when namely there is multiple virtual router, VRRP message is multicast message, the activestandby state of monitor state machine is needed in each VRRP backup group, Master router all can send VRRP and notice, Backup router all can receive VRRP and notice, such as, when having N number of backup group, VRRP message number is N × N, thus there is a large amount of VRRP protocol massages and corresponding monitor state information between two routers of configuration VRRP backup group, reduce CPU processing speed, VRRP message reduces the performance of VRRP protocol application while occupying more bandwidth.
Summary of the invention
In view of this, the invention provides a kind of can improve VRRP protocol application performance and decrease the backup group management method based on VRRP and the system of VRRP message occupied bandwidth.
Based on a backup group management method of VRRP, it is for managing many group VRRP backup groups, and the described backup group management method based on VRRP comprises the following steps:
Configure VRRP and manage backup group and at least one manages the corresponding VRRP service backup group of backup group with described VRRP;
The activestandby state that VRRP manages the state machine of backup group is set;
Monitor described VRRP manage the state machine of backup group activestandby state and when there is change in monitored activestandby state by the activestandby state synchronized update after change to the state machine of described each VRRP service backup group.
Based on a backup group management system of VRRP, it is for managing many group VRRP backup groups, and the described backup group management system based on VRRP comprises:
A backup group configuration module, it is for configuring VRRP and manage backup group and at least one managing the corresponding VRRP service backup group of backup group with described VRRP;
A state machine arranges module, and it manages the activestandby state of the state machine of backup group for arranging VRRP;
A monitoring module, it manages the activestandby state of the state machine of backup group for monitoring described VRRP;
A synchronized update module, by the state machine of the activestandby state synchronized update after change to described VRRP service backup group when it is for occurring changing at monitored activestandby state.
Compared with prior art, in backup group management method based on VRRP provided by the invention and system, VRRP manages the state machine that the activestandby state of state machine is synchronized to VRRP service management group by backup group, VRRP management group decides the state of state machine by sending a VRRP protocol massages, thus determine the state machine state of its all VRRP service backup groups of binding, also namely the activestandby state that VRRP manages the state machine of backup group need only be monitored, the state of the state machine of VRRP management backup group directly determines the state of the state machine of VRRP service backup group, improve CPU processing speed, the performance of VRRP protocol application is also improved while decreasing the network bandwidth that VRRP message takies.
Accompanying drawing explanation
Fig. 1 is the module diagram of the backup group management system based on VRRP provided by the invention.
Fig. 2 is the networking structure schematic diagram adopting the VRRP of VRRP agreement to manage backup group and VRRP service backup group.
Fig. 3 is the flow chart of the backup group management method based on VRRP provided by the invention.
Main element symbol description
Based on the backup group management system 100 of VRRP
Backup group configuration module 110
State machine arranges module 120
Monitoring module 140
Judging unit 142
Active-standby switch unit 144
Synchronized update module 160
First physical router R1
Second physical router R2
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, its one provided for embodiment of the present invention is based on Virtual Router Redundancy Protocol (VirtualRouterRedundancyProtocol, VRRP) backup group management system 100, it is for managing many group VRRP backup groups, and the described backup group management system 100 based on VRRP comprises a backup group configuration module 110, state machine and arranges module 120, monitoring module 140 and a synchronized update module 160.
Described backup group configuration module 110 is for configuring VRRP and manage backup group VRRP1 and at least one managing the corresponding VRRP service backup group of backup group with described VRRP, in present embodiment, configuration VRRP1 and VRRP2, VRRP3 ... VRRPN-1 service backup group is corresponding, and also namely VRRP manages backup group and the corresponding binding of N-1 VRRP service backup group.
In present embodiment, as shown in Figure 2, it is all corresponding with the first physical router R1 and the second physical router R2 with N-1 VRRP service backup group that VRRP manages backup group, also namely the first physical router R1 and the second physical router R2 shows as N number of virtual router to All hosts, each virtual router has the VRRPID of oneself to be used for identifier router to belong to the ID of which VRRP group, the VRRPID managing backup group as VRRP is 1, the VRRPID of N-1 VRRP service backup group is followed successively by 2 ... N, the equipment having identical VRRPID at same Ethernet broadcast domain belongs to same VRRP backup group, each virtual router has oneself IP address, the IP address managing backup group as VRRP is 11.11.11.1, the IP address of VRRP service management group is 12.12.12.1, the port of VRRP protocol massages is same.
Described state machine arranges module 120 manages the state machine of backup group activestandby state for arranging VRRP, the state of the state machine of VRRP management group is determined by the first physical router R1 of correspondence and the activestandby state of the second physical router R2, as state machine arranges module 120, to arrange the first physical router R1 be primary route device, second physical router R2 is standby router, be understandable that, primary route device R1 is responsible for the data traffic forwarded through the IP address of VRRP management group (virtual router) and also periodically sends VRRP message to inform that standby router R2 oneself is for active router state, the not responsible forwarding of standby router R2 is through the data traffic of the IP address of VRRP management group (virtual router), VRRP message is not sent yet, but receive the VRRP message sended over from primary route device R1.
Described monitoring module 140 comprises a judging unit 142 and an active-standby switch unit 144, described judging unit judges that VRRP manages standby router R2 corresponding to the state machine of backup group and whether normally receives VRRP and manage the VRRP message that primary route device R1 corresponding to the state machine of backup group send, active-standby switch unit 144 carries out the switching of activestandby state between primary route device R1 and standby router R2 when standby router R2 does not normally receive the VRRP message that primary route device R1 sends, also namely the state of primary route device R1 is switched to standby router by active-standby switch unit 144, the state of standby router R2 is switched to primary route device.
Be understandable that, generally preset primary route device R1 timed sending VRRP message as transmission per second VRRP message according to VRRP agreement, determine that primary route device R1 breaks down when judging unit 142 judges that standby router R2 does not receive the VRRP message of primary route device R1 transmission within the certain intervals time as in 3 seconds, standby router R2 is switched to primary route device by active-standby switch unit 144, also namely standby router R2 upgrades to primary route device state and carries out the forwarding of data traffic and the transmission of VRRP message to take over original primary route device R1, primary route device R1 is originally restarted after the failure can receive VRRP message to monitor in VRRP management group whether there is primary route device, if there is primary route device in VRRP management group, then original primary route device R1 becomes standby router state to receive VRRP message after starting, if do not receive VRRP message within a certain period of time, then think to there is not active router in VRRP management group and oneself switches to active router.
When there is change for the activestandby state of the state machine in monitored VRRP management group in described synchronized update module 160 by the activestandby state synchronized update after change to the state machine of each VRRP service backup group, primary route device R1 as corresponding in VRRP management group switches to standby router R1 and after standby router R2 switches to primary route device R2, synchronized update module 160 by the active and standby router state information synchronized update after switching to the state machine of each VRRP service groups to make primary route device that the state machine of each VRRP service groups is corresponding for R2, the primary route device that the state machine of each VRRP service groups is corresponding is R1.Be understandable that, after the state updating of the active and standby router that the state machine of each VRRP service groups is corresponding, the primary route device after renewal sends gratuitous ARP packet and forwards from primary route device with control data message with the virtual IP address and MAC Address of informing this primary route device of Ethernet switch.
Be understandable that, for improving CPU processing speed, state machine arranges module 120 and does not also send VRRP message for the primary route device that the state machine arranging each VRRP service backup group is corresponding, and the standby router that the state machine of each VRRP service backup group is corresponding does not receive VRRP message.
Refer to Fig. 3, its a kind of backup group management method based on VRRP provided for embodiment of the present invention, it is for managing many group VRRP backup groups, and the described backup group management method based on VRRP comprises the following steps:
S110: configure VRRP and manage backup group and at least one manages the corresponding VRRP service backup group of backup group with VRRP;
S120: the activestandby state that VRRP manages the state machine of backup group is set;
S130: judge that VRRP manages standby router corresponding to the state machine of backup group and whether normally receives the VRRP message that primary route device sends, if so, repeat step S130 and continue to judge, if not, then enter step S140;
S140: carry out master/slave switchover between primary route device and standby router;
S150: when change appears in monitored activestandby state by the state machine of the activestandby state synchronized update after change to VRRP service backup group.
In step s 110, utilize backup group configuration module 110 to configure VRRP and manage backup group VRRP1 and at least one manages the corresponding VRRP service backup group of backup group with described VRRP, in present embodiment, configuration VRRP1 and VRRP2 ... VRRPn-1 service backup group is corresponding, also namely VRRP manage backup group and n-1 VRRP service backup group as VRRP2, VRRP3 ... the corresponding binding of VRRPn-1 service backup group.In present embodiment, it is all corresponding with the first physical router R1 and the second physical router R2 with n-1 VRRP service backup group that VRRP manages backup group 1.
In the step s 120, utilization state machine arranges module 120 and arranges the activestandby state that VRRP manages the state machine of backup group, the state of the state machine of VRRP management group is determined by the first physical router R1 of correspondence and the activestandby state of the second physical router R2, as state machine arranges module 120, to arrange the first physical router R1 be primary route device, second physical router R2 is standby router, primary route device R1 is responsible for periodically sending VRRP message to inform that standby router R2 oneself is for active router state, standby router R2 receives the VRRP message sended over from primary route device R1.
In step s 130, which, in present embodiment, VRRP manages standby router R2 corresponding to the state machine of backup group and whether normally receives VRRP and manage the VRRP message that primary route device R1 corresponding to the state machine of backup group send to utilize judging unit 142 to judge, in present embodiment, primary route device R1 timed sending VRRP message is as transmission per second VRRP message, and judging unit 142 judges whether timing receives VRRP message to standby router R2 under normal circumstances.
In step S140, utilize active-standby switch unit 144 between primary route device R1 and standby router R2, carry out the switching of activestandby state when standby router R2 does not normally receive the VRRP message that primary route device R1 sends, also namely the state of primary route device R1 switches to standby router, and the state of standby router R2 switches to primary route device.In present embodiment, determine that primary route device R1 breaks down when active-standby switch unit 144 does not receive the VRRP message of primary route device R1 transmission in standby router R2 is not regularly as 3 seconds, standby router R2 is switched to primary route device by active-standby switch unit 144, also namely standby router R2 upgrades to primary route device state and carries out the forwarding of data traffic and the transmission of VRRP message to take over original primary route device R1, primary route device is after fault recovery is restarted, if primary route device timing receipt is originally to VRRP message, then original primary route device switches to standby router, now standby usage router switches, also namely represent that change has appearred in the activestandby state of the state machine of VRRP management group.
In step S150, utilize synchronized update module 160 when change appears in the activestandby state of the state machine of monitored VRRP management group by the state machine of the activestandby state synchronized update after change to each VRRP service backup group, in present embodiment, primary route device R1 corresponding to VRRP management group switches to standby router R1 and after standby router R2 switches to primary route device R2, synchronized update module 160 by the active and standby router state information synchronized update after switching to the state machine of each VRRP service groups to make primary route device that the state machine of each VRRP service groups is corresponding for R2, the primary route device that the state machine of each VRRP service groups is corresponding is R1.
Being understandable that, is improve cpu busy percentage, further comprising the steps of in the step s 120: arrange active and standby router corresponding to the state machine of VRRP service backup group and neither send VRRP message and also do not receive VRRP message.
In backup group management system 100 based on VRRP provided by the invention and method, VRRP service backup group and VRRP are managed after backup group binds, the state machine of VRRP service backup group no longer receives and dispatches protocol massages, improve CPU processing speed, VRRP manages the state machine that the activestandby state of state machine is synchronized to VRRP service management group by backup group, VRRP management group decides the state of state machine by sending a VRRP protocol massages, thus determine the state machine state of its all VRRP service backup groups of binding, also namely the activestandby state that VRRP manages the state machine of backup group need only be monitored, the state of the state machine of VRRP management backup group directly determines the state of the state machine of VRRP service backup group, decrease the performance that the network bandwidth that VRRP message takies also improves VRRP protocol application simultaneously.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection range that all should belong to the claims in the present invention with distortion.
Claims (8)
1., based on a backup group management method of VRRP, it is for managing many group VRRP backup groups, and the described backup group management method based on VRRP comprises the following steps:
Configure VRRP and manage backup group and at least one manages the corresponding VRRP service backup group of backup group with described VRRP;
The activestandby state that VRRP manages the state machine of backup group is set;
Monitor described VRRP manage the state machine of backup group activestandby state and when there is change in monitored activestandby state by the activestandby state synchronized update after change to the state machine of described each VRRP service backup group.
2. as claimed in claim 1 based on the backup group management method of VRRP, it is characterized in that, the VRRP management backup group of described configuration is corresponding with first physical router and second physical router, and at least one VRRP service backup group of described configuration is corresponding with described first physical router and described second physical router.
3. as claimed in claim 1 based on the backup group management method of VRRP, it is characterized in that, manage in the state step of the state machine of backup group at described monitoring VRRP and comprise the following steps:
Judge that described VRRP manages standby router corresponding to the state machine of backup group and whether normally receives described VRRP and manage the VRRP message that primary route device corresponding to the state machine of backup group send;
Between described primary route device and described standby router, master/slave switchover is carried out when described standby router does not normally receive the VRRP message that described primary route device sends.
4., as claimed in claim 1 based on the backup group management method of VRRP, it is characterized in that, further comprising the steps of after arranging VRRP to manage the step of the activestandby state of the state machine of backup group: the state machine arranging VRRP service backup group does not does not receive and dispatch VRRP message.
5., based on a backup group management system of VRRP, it is for managing many group VRRP backup groups, and the described backup group management system based on VRRP comprises:
A backup group configuration module, it is for configuring VRRP and manage backup group and at least one managing the corresponding VRRP service backup group of backup group with described VRRP;
A state machine arranges module, and it manages the activestandby state of the state machine of backup group for arranging VRRP;
A monitoring module, it manages the activestandby state of the state machine of backup group for monitoring described VRRP;
A synchronized update module, by the state machine of the activestandby state synchronized update after change to described VRRP service backup group when it is for occurring changing at monitored activestandby state.
6. as claimed in claim 5 based on the backup group management system of VRRP, it is characterized in that, the VRRP management backup group of described configuration is corresponding with first physical router and second physical router, corresponding described first physical router of at least one VRRP service backup group of described configuration and described second physical router.
7. as claimed in claim 5 based on the backup group management system of VRRP, it is characterized in that, described monitoring module comprises a judging unit and an active-standby switch unit, described judging unit judges that described VRRP manages standby router corresponding to the state machine of backup group and whether normally receives described VRRP and manage the VRRP message that primary route device corresponding to the state machine of backup group send, described active-standby switch unit carries out master/slave switchover when described standby router does not normally receive the VRRP message that described primary route device sends between described primary route device and described standby router.
8., as claimed in claim 5 based on the backup group management system of VRRP, it is characterized in that, described state machine arranges module and does not does not also receive and dispatch VRRP message for the active and standby router that the state machine arranging VRRP service backup group is corresponding.
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| CN114978987A (en) * | 2022-05-17 | 2022-08-30 | 北京交通大学 | Server redundancy backup method |
| CN114978987B (en) * | 2022-05-17 | 2023-08-29 | 北京交通大学 | Server Redundancy Backup Method |
| CN115396307A (en) * | 2022-07-13 | 2022-11-25 | 微网优联科技(成都)有限公司 | Method, system, storage medium and electronic device for restarting multi-router |
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