A message forwarding method and device

A message forwarding and message technology, applied in the field of network communication, can solve problems such as loops, avoid loops, reduce the probability of loops, and improve reliability.
CN108965126BActive Publication Date: 2021-09-21NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2021-09-21

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Abstract

The present invention provides a message forwarding method and device. The method includes: for a Layer 3 message without tunnel encapsulation, when a target Layer 3 forwarding entry matching the Layer 3 message is found, the The target three-layer forwarding entry judges whether the next-hop outgoing interface of the three-layer message is the same as the incoming interface of the three-layer message; if they are the same, the next-hop outgoing interface of the three-layer message is modified to target tunnel interface, and perform tunnel encapsulation on the layer-3 message; forward the layer-3 message after tunnel encapsulation through the target tunnel interface; if different, exit through the next hop of the layer-3 message The interface forwards the Layer 3 packet. The application of the embodiments of the present invention can reduce the probability of loops in the data center networking and improve the reliability of the array center networking.
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Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to a message forwarding method and device. Background technique

[0002] With the enhancement of server capabilities and bandwidth, some new technology applications have appeared in the data center computer room, such as cross-device stacking and high-bandwidth dual network cards.

[0003] by figure 1 The shown networking is taken as an example, and the access devices (R2 and R3) and the server (R4) are interconnected through dual network cards and non-stack aggregation to form an asynchronous mutual backup link. The server uses a host address to establish direct links with multiple (two in the figure as an example) access devices to form the same ARP (Address Resolution Protocol, Address Resolution Protocol) entry, and publish the same host routing. For the aggregation switch (R1), R1-R2-R4 and R1-R3-R4 form an equal-cost path, and packets from R1 to R4 will be sha...

Claims

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