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Fault protection method and device, storage medium and electronic device

A fail-safe and failure-prone technology, applied in the field of communication, can solve problems such as difficulty in equipment deployment

Pending Publication Date: 2021-05-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Embodiments of the present invention provide a fault protection method and device, a storage medium, and an electronic device to at least solve the problem that in the process of fault protection, intermediate node protection and tail node protection generally use different technologies, which leads to difficulties in equipment deployment, etc. question

Method used

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  • Fault protection method and device, storage medium and electronic device
  • Fault protection method and device, storage medium and electronic device

Examples

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Embodiment 1

[0063] image 3 is a schematic diagram of intermediate node protection networking according to a fault protection method in an optional embodiment of the present invention, such as image 3 As shown, the intermediate node P2 is the master node, P3 is the backup node, the prefix on P2 is LOC2, a segment identifier SID21 of type END is allocated to P2, and a SID22 of type END.X is allocated to the link P2-PE4. Similarly, the prefix on P3 is LOC3, a SID31 of type END is allocated to P3, a SID32 of type END.X is allocated to the link P3-PE4, and a protection relationship is configured on P3.

[0064]P3, as the standby node of P2, configures the protection relationship, and the configuration method includes at least one of the following:

[0065] Method 1: configure by prefix;

[0066] Specifically, in an optional embodiment of the present invention, P3 needs to protect the segment identifier SID on P2. Configure the prefix that needs to be protected on P3. The prefix covers the...

Embodiment 2

[0075] Figure 4 is a schematic diagram of a service chain protection scenario of a fault protection method according to an optional embodiment of the present invention, as shown in Figure 4 As shown, the transmission from CE1 to CE2 needs to be filtered by the firewall. Under normal circumstances, the service flow is CE1->PE1->P->P2->FW->P2->PE4->CE2, and the firewall FW does not support SRv6. P2 and P3 have SRv6 proxy functions (such as END.AS), that is, they can replace the FW to process SRv6 packets. Before the packets are sent to the FW, the SRv6 packet headers are stripped, and the packets are sent back to the agent after the FW has processed them. After that, the proxy encapsulates the SRv6 packet header and continues to forward it.

[0076] Configure protection relationship on P3. In embodiment two, P3 needs to protect the SID (segment identification) on P2, configure node P2 that needs to be protected on P3, and specify to only protect the SID of static proxy type; ...

Embodiment 3

[0078] Figure 5 is a schematic diagram of a tail node / link fault protection network according to a fault protection method in an optional embodiment of the present invention, such as Figure 5 It should be noted that the prefixes on PE1, PE2, and PE3 are LOC1, LOC2, and LOC3 respectively; VPN neighbors in IPv6 form are deployed between PE1-PE2, PE1-PE3, and PE2-PE3, and PE2 and PE3 Configure the VPN instance VPN1, carry the RT (remote) parameter in the VPN instance, and configure the SRv6 VPN SID at the same time. The VPN SIDs on PE2 and PE3 are assigned as SID2 and SID3; after PE2 receives the private network route released by CE2, it encapsulates it into a VPN route , sent to PE3, the route carries VPN SID, RT, RD and possible constraints.

[0079] In the SR-TE scenario, CE1 sends traffic to CE2 through PE1, P, and PE2 along the specified SR-TE tunnel. The possible format of the packet sent by PE1 is: DA=SID-P,SRH, where SID-PE1, SID-P, and SID-PE2 correspond to SIDs on PE...

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Abstract

The invention provides a fault protection method and device, a storage medium and an electronic device. The method comprises the steps that a protection relation is configured on a standby node, and the protection relation is used for indicating an object needing to be protected by the standby node; segment identification SI D information notified by the main node is received, and the segment identification SI D information at least comprises an SI D network programming function type and an SI D value; the SI D network programming function type then is matched with the SI D network programming function type of the standby node, and the SI D value is matched with the protection relation; a a protection table item is generated under the condition that the SI D network programming function type is successfully matched with the SI D network programming function type of the standby node and the SI D value is successfully matched with the protection relation; and under the condition that the main node or the link connected with the main node fails, the standby node forwards the received message according to the protection table item.

Description

technical field [0001] The present invention mainly relates to the communication field, in particular, to a fault protection method and device, a storage medium, and an electronic device. Background technique [0002] With the continuous development of science and technology, the scale of the network is getting larger and larger. The occurrence of network failures will lead to interruption of business transmission and loss of data, etc., which will cause serious consequences. However, in real life, due to various reasons, network failures It is inevitable, so fault protection service transmission becomes very important. [0003] In the prior art, the fault protection schemes in the SR / SRv6 network mainly include the following schemes: [0004] 1) draft-chen-rtgwg-srv6-midpoint-protection, this scheme is mainly to skip the faulty node and continue forwarding after a node failure. This method mainly protects the accessibility of the entire link, but cannot guarantee backup P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/703H04L12/24H04L45/28
CPCH04L45/28H04L41/0803H04L45/22H04L45/34H04L45/50H04L12/4675
Inventor 刘尧王玉保彭少富
Owner ZTE CORP
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