Method, equipment and system for communication in virtual local area network

Abstract

The embodiment of the invention discloses a method for communication in virtual local area network. The method is characterized by comprising a step of obtaining a TCP / IP data packet that needs sending in the virtual local network, a step of looking up the corresponding relation between the virtual local network and a host computer based on a virtual local network identifier carried by the TCP / IP data packet and obtaining host computers contained in the virtual local network, a step of determining a destination host computer of the TCP / IP data packet based on address information in the TCP / IP data packet, wherein the destination host computer is contained in the host computers contained in the virtual local network, a step of sending the TCP / IP data packet to the destination host computer of the TCP / IP data packet through interconnecting a high-speed peripheral assembly with a PCIE interchanger. A fact that the point-to-point transmission in a virtual local network is allowed only in the same host computer in the virtual local network is achieved, and thus a VLAN security problem of an IPoPCIE system is tackled. The embodiment of the invention also discloses a host computer, a system and a storage medium for communication in the virtual local network.

Description

technical field [0001] The embodiments of the present invention relate to the field of computers, and in particular to a method, device and system for communicating in a virtual local area network (Virtual Local Area Network, VLAN for short). Background technique [0002] With the development of high-speed peripheral component interconnect (Peripheral Component Interconnect Express, referred to as PCIE) bus technology, the PCIE bus is no longer just a data transmission bus between a host and a peripheral device, and is further expanded into a data communication bus between two hosts. Currently, the mainstream communication method between hosts relies on the Transmission Control Protocol (TCP for short) / Internet Protocol (IP for short) stack. In order to be better compatible with the existing TCP / IP program, the industry has proposed the concept that the TCP / IP protocol runs on the PCIE bus (TCP / IP over PCIE, referred to as IPoPCIE) network, that is, the TCP / IP protocol runs ...

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Problems solved by technology

[0003] But IPoPCIE also faces serious problems while improving performance: there is no security isolation function in PCIE hardware, and there are serious problems in network security: for example, network storms caused by network viruses, network loops, and hacker software lead to paralysis of the entire network ; People from different departments access information to each other, leading to problems such as leakage of information confidentiality

In fact, the data packets still reach the physical hosts, and the data is only filtered in the VLAN module at the receiving end, which does not achieve a real isolation effect and cannot effectively avoid network storms

[0004] As mentioned above, the internal communication of the VLAN in the IPoPCIE system cannot be solved well in the prior art, the data packet isolation between the hosts has not been achieved, and the network storm cannot be avoided

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