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Large flow load balancing forwarding method and device

A technology of load balancing and forwarding methods, applied in the field of network communication, can solve problems such as transmission port congestion, achieve the effect of avoiding transmission congestion and packet loss, and improving performance

Active Publication Date: 2017-07-28
SUZHOU CENTEC COMM CO LTD
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Problems solved by technology

When the flowLet-based load balancing technology is transmitting flows, especially elephant flows, when multiple flows meet the switching conditions at the same time, multiple flows are simultaneously switched to the same path on the same transmission port, which will cause congestion on the switched transmission port , and the impact of this kind of congestion is even greater than that of not doing dynamic switching

Method used

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  • Large flow load balancing forwarding method and device
  • Large flow load balancing forwarding method and device
  • Large flow load balancing forwarding method and device

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Embodiment Construction

[0050] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0051] Such as figure 1 As shown, in an embodiment of the present invention, the large flow load balancing forwarding method includes:

[0052] Multiple flows sequentially select the transmission port of the switch for forwarding, and after the start of each statistical period, it is sequentially judged whether the current flow needs to be switched to other transmission ports of the switch.

[0053] If so, search for the output port that meets the switching condition; after the flow is switched to the output port that meets the switching condition, immediately lock the output port that meets the switchi...

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Abstract

The present invention provides a large flow load balancing forwarding method and device. The method includes: after each statistical cycle starts, sequentially judge whether the current flow needs to be switched to other transmission ports of the switch; The output port; after the flow is switched to an output port that meets the switching condition, immediately lock the output port that meets the switching condition, and stop its election right; and unlock the output port after at least one statistical period, and restore Its election rights; if not, the flow is forwarded through the current transmission port. After the transmission port of the switch receives any flow, the present invention immediately locks the transmission port and stops its election right; and unlocks the output port after at least one statistical cycle, effectively improving the dynamic load of the switch Balanced performance, thereby avoiding the occurrence of each transmission congestion and packet loss.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a large flow load balancing forwarding method and device. Background technique [0002] In modern data center networks, the mainstream bandwidth of server connections has already tended to the rate of 10G. With the advancement of technology, it is expected that the access rate of 40G will gradually appear. From the perspective of network equipment bandwidth, the bandwidth capabilities of TOR switches and core switches also need to be improved. Therefore, from the perspective of network bandwidth utilization, the research on load balancing technology has become a current hot spot. [0003] In a traditional data center, the information that participates in the transfer is called a flow. The full English name of the flow is "Flow". A Flow is defined according to the characteristics of the message and the attributes of the interface. The traditional way to define a Flow is: sourc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/803
Inventor 周伟
Owner SUZHOU CENTEC COMM CO LTD
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