A method for publishing routes, virtual router redundancy protocol backup group and network
A technology of redundancy protocol and backup group, applied in data exchange network, digital transmission system, electrical components, etc., can solve problems such as inability to correctly distinguish member devices and interruption of downlink message traffic.
Active Publication Date: 2018-05-22
CHINA MOBILE GRP GUANGDONG CO LTD
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Problems solved by technology
[0008] The technical problem to be solved by the present invention is to provide a method for issuing routes, a virtual router redundancy protocol backup group, and a network, which are used to solve the problem in the prior art that when the VRRP backup group splits due to a layer-2 network, the network side cannot Correctly distinguish the member device of the next hop of the downlink packet flow, which may cause the downlink packet flow to be interrupted
Method used
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[0026] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0027] The embodiment of the present invention provides a method for publishing routes, such as image 3 As shown, the virtual router redundancy protocol backup group (abbreviation: VRRP backup group) includes VRRP member devices, and the VRRP member devices are divided into: Master state member devices and Backup state member devices, and terminal devices pass through (local) switches and intermediate secondary devices Layer network devices are connected to the virtual router redundancy protocol backup group, and are connected to the network side through the virtual router redundancy protocol backup group;
[0028] The method is applied to VRRP member devices, such as Figure 4 shown, including:
[0029] Step 401, using link fault detection technology...
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The embodiment of the present invention provides a method for publishing routes, a virtual router redundancy protocol backup group, and a network. The virtual router redundancy protocol VRRP backup group includes VRRP member devices, and terminal devices access the virtual router redundancy protocol through switches and layer-2 network devices. The redundant protocol backup group is connected to the network side through the virtual router redundancy protocol backup group; the link fault detection technology is used to detect the connection status of the link between the VRRP member device and the switch; and, a network segment is configured in the VRRP member device It is the network segment where the VRRP backup group is located, and the next hop is the static routing information of the interface of the VRRP backup group. Configure the association between the static routing information and the link connectivity status; VRRP member devices advertise the static routing information to the network side; when the link connectivity status When an exception occurs, the static routing information is linked with the link connectivity and becomes invalid, and the VRRP member device cancels the advertisement of the static routing information to the network side.
Description
technical field [0001] The invention relates to network routing technology, in particular to a method for issuing routes, a virtual router redundancy protocol backup group and a network. Background technique [0002] VRRP (Virtual Router Redundancy Protocol, Virtual Router Redundancy Protocol) is a selection protocol, which can add multiple routing devices that can undertake the gateway function into a VRRP backup group, and use the VRRP backup group to form a virtual routing device , so that each local host in the network segment where the VRRP backup group is located in the Layer 2 network (such as a local area network) can communicate only by configuring the virtual routing device as the default gateway, thereby simplifying the configuration of the network host. Among them, Each routing device in the VRRP backup group is a member device of the VRRP backup group. In a VRRP backup group, a member device with the highest priority will be selected as the Master (primary) sta...
Claims
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IPC IPC(8): H04L12/713H04L45/586
Inventor 张红欣陈毓锋余越何杰张力维胡国栋
Owner CHINA MOBILE GRP GUANGDONG CO LTD