Expanding network functionalities for openflow based split-architecture networks
An architectural and functional technology, applied in the direction of network connection, network interconnection, data exchange network, etc., can solve problems such as high barriers, complex network management, and overly complex control planes
Active Publication Date: 2014-09-03
TELEFON AB LM ERICSSON (PUBL)
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Problems solved by technology
[0004] Tight coupling of forwarding and control planes in traditional architectures often results in overly complex control planes and complex network management
This is notoriously a large burden and high barrier to new protocol and technology development
Method used
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[0018] In the description below, many specific details are stated.However, it is understood that the implementation examples of the present invention do not require these specific details.In other circumstances, the circuit, structure and technology of Gongzhi do not show in detail to avoid confusion about the understanding of this description.However, the technicians in the art will be fulfilled to practice the present invention without such specific details.Through the description, technicians in the art will be able to achieve appropriate functionality without undergoing improper experiments.
[0019] The technique shown in the attached figure can be implemented by one or more electronic devices (for example, terminal stations, network components, servers, or similar electronic devices).Such electronic devices use non -temporary machine readable or computer readable media, such as non -temporary machine readable or computer readable storage media (for example, disks, discs, ran...
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A method enables a switch in a split-architecture network to provide high speed packet processing and enhanced network functionalities that are not supported by the OpenFlow. The switch receives a packet from a network through an input port of the switch, and matches header fields in the packet against table entries in flow tables to identify an action to be taken. The flow tables are part of an OpenFlow pipeline. The identified action is to direct the packet to a designated processing unit in the switch. The OpenFlow pipeline forwards the packet to the designated processing unit via a communication channel in the switch. The designated processing unit processes the packet with the enhanced network functionalities, and injects the packet back to one of the flow tables before transmission of the packet to the network through an egress port of the switch.
Description
[0001] Technical field [0002] The embodiment of the present invention involves an openflow -based separate architecture network.Specifically, the embodiments of the present invention involve the use of the processing unit in the open -based switch based on OpenFlow to perform the unsuitable functions of the current OpenFlow specifications such as OpenFlow 1.1 specifications. Background technique [0003] Different from the traditional network architecture that integrates data planes and control planes in the same box (such as network components such as router), the separation architecture network separates these two planes, and may be in the forwarding component (switch) in the forwarding component (switch) in it inThe control plane is executed on the server (controller) in different physical positions.The use of separation architectures in the network allows simplified switches and moves the intelligence of the network to multiple controllers of the monitoring switch. [0004]...
Claims
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IPC IPC(8): H04L12/801H04L45/50
CPCH04L49/00H04L45/38H04L12/46H04L12/66H04L49/252H04L45/645H04L45/50H04L45/68H04L49/3063
Inventor R.米什拉L.贝利沃
Owner TELEFON AB LM ERICSSON (PUBL)