CN102571598B - VRRP group flow synchronous switching method and route equipment - Google Patents
VRRP group flow synchronous switching method and route equipment Download PDFInfo
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- CN102571598B CN102571598B CN201210025069.0A CN201210025069A CN102571598B CN 102571598 B CN102571598 B CN 102571598B CN 201210025069 A CN201210025069 A CN 201210025069A CN 102571598 B CN102571598 B CN 102571598B
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Abstract
The invention discloses a VRRP group flow synchronous switching method. The method comprises the following steps that: a port connecting with each second layer equipment on main equipment is bound; the main equipment recovers normal work, simultaneous UP of the bound port is carried out after waiting for reservation time, a free address resolution protocol ARP message is sent to each of the connected second layer equipment through the bound port, thus each second layer equipment synchronously switches flow to the main equipment which recovers the normal work. The invention discloses route equipment simultaneously. Through applying the VRRP group flow synchronous switching method and the route equipment of the invention, after the main equipment of a VRRP network recovers the normal work, it is ensured that the VRRP flow is synchronously switched to the main equipment which recovers the normal work and the quantity of message loss in switching can be reduced too.
Description
Technical field
The present invention relates to Virtual Router Redundancy Protocol (VRRP) networking technology field, particularly VRRP group flow method for synchronously switching and routing device.
Background technology
Fig. 1 is the structural representation of existing VRRP networking, and as shown in Figure 1, CE1, CE2 up VRRP, CE1 are host apparatus, and CE2 is stand-by equipment.
When CE1 breaks down, message is switched to reserve link, and the link namely between LSW1 and CE2 and LSW2 and CE2 forward; Now, if CE1 recovers normal work, then CE1 will send gratuitous ARP packet to LSW1 and LSW2, and notice LSW1 and LSW2 is by message by active link, and the link namely between LSW1 and CE1 and the link between LSW2 and CE1, forward.
Summary of the invention
In view of this, the invention provides a kind of VRRP group flow method for synchronously switching, after host apparatus in VRRP networking recovers normal work, can not only ensure that VRRP group flow synchronism switching is on the host apparatus recovering normally to work, but also the quantity of message dropping when can reduce switching.
Present invention also offers a kind of routing device, after host apparatus in VRRP networking recovers normal work, can not only ensure that VRRP group flow synchronism switching is on the host apparatus recovering normally to work, but also the quantity of message dropping when can reduce switching.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A kind of Virtual Router Redundancy Protocol VRRP group flow method for synchronously switching, the method comprises:
Port host apparatus connecting each two-layer equipment is bound;
Host apparatus recovers normal work, by the described port of binding UP simultaneously after waiting for the ticket reserving time, send free ARP message by the described port of binding to each described two-layer equipment connected, make each described two-layer equipment by flow synchronism switching to the host apparatus recovering normal work.
When host apparatus recovers normally to work, the method also comprises: the ARP backup that the equipment that the host apparatus recovering normal work receives work at present sends, to make the ARP recovered in the synchronous VRRP networking of host apparatus of normal work.
The ARP backup that the equipment that the host apparatus that described recovery normally works receives work at present by heartbeat message sends.
The described scheduled time is not less than the time that the host apparatus recovering normal work completes the ARP in synchronous VRRP networking.
A kind of routing device, this routing device is the host apparatus in Virtual Router Redundancy Protocol VRRP group, and this routing device comprises port binding unit and synchronism switching unit, wherein,
Described port binding unit, binds for the port self being connected each two-layer equipment;
Described synchronism switching unit, for when self-recovery normally works, by the described port of binding UP simultaneously after waiting for the ticket reserving time, send free ARP message by the described port of described port binding unit binding to each described two-layer equipment connected, make each described two-layer equipment by flow synchronism switching to self.
This routing device also comprises backup lock unit, the ARP backup that the equipment for receiving work at present sends, to make the ARP in self synchronous VRRP networking, then,
Described synchronism switching unit, backs up flow synchronism switching to self for the ARP received according to backup lock unit.
The ARP backup that the equipment that described backup lock unit receives work at present by heartbeat message sends.
The scheduled time in described synchronism switching unit is not less than the time that backup lock unit synchronously completes the ARP in VRRP networking.
A kind of routing device, this routing device is the stand-by equipment in Virtual Router Redundancy Protocol VRRP group.This routing device comprises backup lock unit, for sending ARP backup to the host apparatus recovering normal work, to make the ARP recovered in the synchronous VRRP networking of host apparatus of normal work.
Described backup lock unit sends ARP backup by heartbeat message to the host apparatus recovering normal work
In sum, VRRP group flow method for synchronously switching of the present invention, by binding port host apparatus in VRRP networking connecting each two-layer equipment, make the described port bound can simultaneously UP, thus when host apparatus recovers normally to work, simultaneously the port of UP can send gratuitous ARP packet to each described two-layer equipment simultaneously, also just make flow can synchronism switching on the host apparatus recovering normal work.Because the inventive method is by binding port host apparatus connecting each two-layer equipment, make the state of each port can be synchronous, therefore, after host apparatus in VRRP networking recovers normal work, ensure that flow synchronism switching is to the host apparatus recovering normal work, but also the quantity of message dropping when can reduce switching.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing VRRP networking;
Fig. 2 is the workflow diagram of VRRP group flow method for synchronously switching of the present invention;
Fig. 3 is the structural representation that routing device of the present invention implements;
Fig. 4 is the structural representation that routing device of the present invention implements two.
Embodiment
In order to solve the technical problem that the present invention proposes, the specific implementation of scheme of the present invention comprises:
Port host apparatus connecting each two-layer equipment is bound; Host apparatus recovers normal work, by the described port of binding UP simultaneously after waiting for the ticket reserving time, send gratuitous ARP packet by the described port of binding to each described two-layer equipment connected, make each described two-layer equipment by flow synchronism switching to the host apparatus recovering normal work.
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Fig. 2 is the workflow diagram of VRRP group flow method for synchronously switching of the present invention.The method is applied in VRRP networking as described in Figure 1.As shown in Figure 2, this flow process comprises:
Step 201: port host apparatus connecting each two-layer equipment is bound.
In this step, port host apparatus connecting each two-layer equipment is bound, also with regard to avoid for UP port accepts to message also may be in the state of DOWN because of other ports, and cause the loss of message.Specifically how prior art is bound to port, repeat no more here.
Step 202: the ARP backup that the equipment that host apparatus receives work at present sends, to make the ARP recovered in the synchronous VRRP networking of host apparatus of normal work.
In this step, when host apparatus fault, also need to receive the ARP backup sent by the equipment of current normal work, thus make when host apparatus recovers normally to work, equipment can be determined according to ARP backup, also just avoid when host apparatus receives message, the loss of the message brought owing to carrying out ARP.
It should be noted that, in this step, the ARP backup that the host apparatus recovering normal work is sent by the equipment that heartbeat message receives work at present.
Step 203: host apparatus recovers normal work, by the described port of binding UP simultaneously after waiting for the ticket reserving time, send free ARP message by the described port of binding to each described two-layer equipment connected, make each described two-layer equipment by flow synchronism switching to the host apparatus recovering normal work.
It should be noted that, the described scheduled time is not less than the time that the host apparatus recovering normal work completes the ARP in synchronous VRRP networking.
So far, the whole workflow of the method for synchronously switching in VRRP networking of the present invention is namely completed.
Based on said method, Fig. 3 gives the structural representation of routing device embodiment one of the present invention, and this routing device is the host apparatus in VRRP group.As shown in Figure 3, this routing device comprises port binding unit 31 and synchronism switching unit 32, wherein,
Described port binding unit 31, binds for the port self being connected each two-layer equipment;
Described synchronism switching unit 32, for when self-recovery normally works, by the described port of binding UP simultaneously after waiting for the ticket reserving time, the described port bound by described port binding unit 31 sends free ARP message to each described two-layer equipment connected, and makes each described two-layer equipment by flow synchronism switching to self.
Further, this routing device also comprises backup lock unit 33, and the ARP backup that the equipment for receiving work at present sends, to make the ARP in self synchronous VRRP networking;
Then, described synchronism switching unit 32, backs up flow synchronism switching to self for the ARP received according to backup lock unit 33.
Wherein, the ARP that described backup lock unit 33 is sent by the equipment that heartbeat message receives work at present backs up.
The scheduled time in described synchronism switching unit 32 is not less than the time that backup lock unit 33 synchronously completes the ARP in VRRP networking.
Similarly, Fig. 4 gives the structural representation of routing device embodiment two of the present invention.This routing device is the stand-by equipment in VRRP group.This routing device comprises backup lock unit 41, for sending ARP backup to the host apparatus recovering normal work, to make the ARP recovered in the synchronous VRRP networking of host apparatus of normal work.
Wherein, described backup lock unit 41 sends ARP backup by heartbeat message to the host apparatus recovering normal work.
So far, namely obtain routing device of the present invention, same Fig. 2 of specific works flow process of routing device described in Fig. 3 and Fig. 4, repeats no more here.
In a word, method for synchronously switching in VRRP networking of the present invention, by binding port host apparatus in VRRP networking connecting each two-layer equipment, make the described port bound can simultaneously UP, thus when host apparatus recovers normally to work, simultaneously the port of UP can send gratuitous ARP packet to each described two-layer equipment simultaneously, also just make flow can synchronism switching on the host apparatus recovering normal work.Because the inventive method is by binding port host apparatus connecting each two-layer equipment, make the state of each port can be synchronous, therefore, after host apparatus in VRRP networking recovers normal work, ensure that flow synchronism switching is to the host apparatus recovering normal work, but also the quantity of message dropping when can reduce switching.
Further, flow method for synchronously switching in VRRP networking of the present invention, the ARP backup that the equipment that the host apparatus recovering normal work can also receive work at present sends, thus the host apparatus making to recover normal work can ARP in synchronously VRRP networking, also just avoid the host apparatus time delay that triggering ARP brings when carrying out three layers and forwarding, also just further avoid the loss of message.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (8)
1. a Virtual Router Redundancy Protocol VRRP group flow method for synchronously switching, it is characterized in that, the method comprises:
Port host apparatus connecting each two-layer equipment is bound;
Host apparatus recovers normal work, by the described port of binding UP simultaneously after waiting for the ticket reserving time, send free ARP message by the described port of binding to each described two-layer equipment connected, make each described two-layer equipment by flow synchronism switching to the host apparatus recovering normal work;
When host apparatus recovers normally to work, the method also comprises: the ARP backup that the equipment that the host apparatus recovering normal work receives work at present sends, to make the ARP recovered in the synchronous VRRP networking of host apparatus of normal work.
2. method according to claim 1, is characterized in that, the ARP backup that the equipment that the host apparatus that described recovery normally works receives work at present by heartbeat message sends.
3. method according to claim 1, is characterized in that, the described ticket reserving time is not less than the time that the host apparatus recovering normal work completes the ARP in synchronous VRRP networking.
4. a routing device, is characterized in that, this routing device is the host apparatus in Virtual Router Redundancy Protocol VRRP group, and this routing device comprises port binding unit and synchronism switching unit, wherein,
Described port binding unit, binds for the port self being connected each two-layer equipment;
Described synchronism switching unit, for when self-recovery normally works, by the described port of binding UP simultaneously after waiting for the ticket reserving time, send free ARP message by the described port of described port binding unit binding to each described two-layer equipment connected, make each described two-layer equipment by flow synchronism switching to self;
This routing device also comprises backup lock unit, the ARP backup that the equipment for receiving work at present sends, to make the ARP in self synchronous VRRP networking, then,
Described synchronism switching unit, backs up flow synchronism switching to self for the ARP received according to backup lock unit.
5. routing device according to claim 4, is characterized in that, the ARP backup that the equipment that described backup lock unit receives work at present by heartbeat message sends.
6. routing device according to claim 4, is characterized in that, the scheduled time in described synchronism switching unit is not less than the time that backup lock unit synchronously completes the ARP in VRRP networking.
7. a routing device, it is characterized in that, this routing device is the stand-by equipment in Virtual Router Redundancy Protocol VRRP group, this routing device comprises backup lock unit, for sending ARP backup to the host apparatus recovering normal work, to make the ARP recovered in the synchronous VRRP networking of host apparatus of normal work.
8. routing device according to claim 7, is characterized in that, described backup lock unit sends ARP backup by heartbeat message to the host apparatus recovering normal work.
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Cited By (1)
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| CN104935507A (en) * | 2015-06-03 | 2015-09-23 | 瑞斯康达科技发展股份有限公司 | Linear protection switching method, PE (Provider Edge) device and system |
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| CN105141520A (en) * | 2014-05-28 | 2015-12-09 | 中兴通讯股份有限公司 | Protection switching method, device and system |
| CN105554175A (en) * | 2015-12-23 | 2016-05-04 | 烽火通信科技股份有限公司 | ARP backup method in PW (Pseudo-wires) redundancy scene |
| CN108432157B (en) * | 2016-04-26 | 2020-04-14 | 华为技术有限公司 | Main/standby switching control method and related device |
| CN106776155A (en) * | 2016-12-08 | 2017-05-31 | 西安交大捷普网络科技有限公司 | One kind application state connection synchronous method |
| CN111404730B (en) * | 2020-03-04 | 2022-12-27 | 华云数据控股集团有限公司 | State synchronization method and device of virtual router, electronic equipment and storage medium |
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| CN101582745A (en) * | 2009-03-31 | 2009-11-18 | 中兴通讯股份有限公司 | Method and router for preventing data packet loss |
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Address after: 310052 Binjiang District Changhe Road, Zhejiang, China, No. 466, No. Patentee after: Xinhua three Technology Co., Ltd. Address before: 310053 Hangzhou hi tech Industrial Development Zone, Zhejiang province science and Technology Industrial Park, No. 310 and No. six road, HUAWEI, Hangzhou production base Patentee before: Huasan Communication Technology Co., Ltd. |