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A data flow routing method and device

A technology of data flow and routing, which is applied in the direction of data exchange network, data exchange through path configuration, digital transmission system, etc., can solve the problems of data flow link congestion, packet loss, etc., and achieve the effect of reducing the possibility of packet loss

Active Publication Date: 2021-05-28
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the link between Spine 1 and Leaf 2 is only congested but not faulty, Leaf 1 still uses Spine 1 as the next-hop device when sending data flow to Leaf 2, which may cause the data flow to be transmitted by Spine1. Packet loss occurs due to link congestion during forwarding to Leaf 2

Method used

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  • A data flow routing method and device
  • A data flow routing method and device

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Embodiment Construction

[0067] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0068] In the spine-leaf network based on VXLAN technology, the leaf device can be used as the VTEP device in the VXLAN network. Any leaf device in the spine-leaf network can receive the data stream sent by the servers connected to it. And forward these data streams to other Leaf devices through the corresponding Spine device in the Spine-Leaf networking according to actual needs (that is, to the server connected to the corresponding Leaf device). In some appl...

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Abstract

Embodiments of the present invention provide a data flow routing method and device. Wherein, the method includes: receiving a congestion notification message sent by the first Spine device, wherein the congestion notification message is sent by the first Spine device when congestion occurs at the outgoing port of the forwarding target data flow, and the congestion notification message is Carry the flow identification of the target data flow, the outer layer destination IP address and the rate; send the bandwidth query message carrying the outer layer destination IP address to each second Spine device, so that each second Spine device determines the same as the outer layer destination IP address The remaining bandwidth of the corresponding egress port, and carry the remaining bandwidth in the bandwidth notification message and send it to the first leaf device; receive the bandwidth notification message sent by each second spine device, and send the remaining bandwidth greater than the rate of the target data flow A second spine device is determined as the next-hop device for sending the target data flow. It can reduce the possibility of data flow packet loss caused by data flow congestion.

Description

technical field [0001] The invention relates to the technical field of congestion notification and load balancing, in particular to a data flow routing method and device. Background technique [0002] VXLAN (Virtual eXtensible Local Area Network) can provide Layer 2 interconnection for distributed physical servers based on the existing service provider or enterprise IP (Internet Protocol, network protocol) network, and can provide different tenants Provides business isolation. The VXLAN technology uses the existing layer-3 physical network as the underlay network, and builds a virtual layer-2 network, namely the overlay network, on it. Overlay uses encapsulation technology to establish VXLAN tunnels between tenant servers. Using the Layer 3 forwarding path provided by the Underlay network, tenant Layer 2 packets can be transmitted across the Layer 3 network and between different servers. [0003] Spine-Leaf (spine-leaf) networking is a common networking solution using VXL...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04L12/741H04L12/801H04L45/74
Inventor 蒋茂勇
Owner NEW H3C TECH CO LTD
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