Method and system for managing data traffic in a computing network

Abstract

The present invention relates to a method for managing data traffic in a computing network, wherein the data traffic is sent via packet streams in the computing network, and wherein one or more packets are processed by one or more network functions, wherein: a ) determining processing information for processing the one or more packets of the identified flow, b) removing header information from the one or more packets, c) adding marking information to the one or more packets packets, d) store a mapping between the tag information and the header information in a cache, and e) process the packets by the one or more network functions according to the identified processing information, wherein if The one or more packets need to be processed, then the one or more network functions query the cache using the tag information to obtain information associated with the tag information from the cache.

Description

technical field [0001] The invention relates to a method for managing data traffic in a computing network, wherein the data traffic is sent via packet flows in the computing network. [0002] The invention also relates to a system for managing data traffic in a computing network, wherein the data traffic is sent via packet flows in the computing network. Background technique [0003] Although applicable to any kind of network, the present invention will be described with reference to a 3GPP EPC network. [0004] exist figure 1 A conventional 3GPP EPC network is shown in: in figure 1 On the left side, a base station in the form of an LTE radio access network is connected to an evolved packet core network EPC. The EPC Packet Data Gateway and figure 1 Between packet data networks described as external networks, a so-called SGi-LAN is implemented. Within the domain of SGi-LAN, a technique or method known as Service Function Chaining "SFC" is generally implemented. In a Ser...

AI Technical Summary

Problems solved by technology

This results in processing delays that are mixed with each transaction passing through the service chain

[0010] In addition to processing overhead, another disadvantage is that packets entering the SFC domain will be appended with additional headers or tags, which also cause additional overhead, as in draft-homma-sfc-forwarding on January 23, 2015 - disclosed in the non-patent literature "Analysis on Forwarding Methods for Service Chaining" by S. Homma et al. in -methods-analysis-01

[0011] In addition, some intermediate virtual network function VNFs may add metadata that may be required by subsequent virtual network function VNFs in the service chain SC to the packet, and this overhead in addition to the header of the packet itself will increase the packet size, thus increasing the packet size. Possibility of size exceeding MTU size

Therefore, this will bring additional complexity to the management of packet segmentation reassembly, and considering the high traffic in SGi-LAN, this additional overhead will also increase the load of the SFC domain

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