Ethernet IP message packaging method based on SDN and network isolation and DHCP implementing method based on SDN

An encapsulation method and IP message technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as reduced transmission efficiency and complex forwarding process, and achieve the effects of easy operation, simplified processing, and reduced costs
CN104010049AActive Publication Date: 2014-08-27EAYUN INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
EAYUN INC
Publication Date
2014-08-27

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Abstract

The invention provides an Ethernet IP message packaging method based on the SDN and a network isolation and DHCP implementing method based on the SDN. The technical problems that due to message layer two head packaging introduction, the transfer process is complex and the transmission efficiency is reduced are solved. The methods include the steps that firstly, an equipment physical layer obtains a physical signal from a transmission medium according to a frame gap and a guide frame, converts the physical signal into a bit and transfers the bit to a data link layer; secondly, the data link layer carries out prior processing work besides MAC address recognition and addressing; thirdly, a protocol stack recognition message is analyzed; fourthly, after being transferred out through a router, the message is transferred to the data link layer for carrying out other processing procedures besides Ethernet packaging and MAC addressing, and the message is sent to the physical layer to be processed according to the format of the message header; fifthly, the physical layer converts the bit of the data frame of the message into an optoelectronic signal in a prior mode and forwards the optoelectronic signal out.
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Description

technical field

[0001] The invention relates to an SDN-based Ethernet IP message encapsulation method and a network isolation and DHCP implementation method, belonging to the field of Ethernet message encapsulation. Background technique

[0002] The current Ethernet has been relatively maturely applied in the actual network. Due to the historical development of the network, the current Ethernet message has two addresses, one is the MAC address and the other is the IP address, and it is forwarded on the second layer. The IP address does not work during the process. At the same time, during the three-layer forwarding process, the MAC address of the packet header is constantly changed. Two network devices that are not in the same LAN and need to communicate do not need to obtain the MAC of the intermediate network device. address. Moreover, in the last hop of the message, it is also necessary to complete the conversion of the IP and MAC mapping of the message, which complicate...

Claims

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