A system and method for implementing kvm_over_ip without a server display

Abstract

The invention relates to the technical field of server application and in particular provides a system and a method enabling a server to fulfill a KVM_OVER_IP function without a displayer. The structure comprises a server main board; one side of the server main board is connected with a displayer and the other side is connected to a far-end PC via a KVM switcher with a remote management function; a graphics card on the server main board is connected with a resistance matching network via a VGA signal switching switch and connected with an EEPROM chip via an I2C bus switch; the EEPROM chip stores EDID information of the displayer; the graphics card is connected with a physical layer via an AD chip and a BMC chip and the physical layer is connected with the KVM switcher. The system and the method enabling a server to fulfill a KVM_OVER_IP function without a displayer enable a KVM OVER IP function to be fulfilled in a discrete graphics card server main board without local connection with a displayer.

Description

technical field [0001] The invention relates to the field of server application technology, in particular to a system and method for realizing KVM OVERIP without a server display. Background technique [0002] KVM OVER IP, also known as IP KVM, is a KVM switch with remote management function. KVM is the abbreviation of Keyboard, Video, Mouse (Keyboard, Video, Mouse), which is a group of keyboards, monitors and mice to control multiple computers. . Usually, due to the attenuation of the signal from the computer to the peripheral equipment, the distance expansion space between the analog KVM switch and the controlled computer is very limited. IP KVM is different. As a digital KVM switch, it can realize remote control of multiple computer servers. KVM OVER IP transmits the signal of each computer to IP data packets through the Internet or a dedicated network. At the remote control end, the IP signal is recompiled into keyboard, mouse, and monitor signals. In order to ensure...

AI Technical Summary

Problems solved by technology

[0003] In server products, due to the different usage scenarios of the server, in some cases it is only required to operate remotely without connecting the display locally, which requires that when the display is not connected locally, the graphics card on the server motherboard still has output, otherwise it will not be possible to not connect locally When displaying, the remote KVM OVER IP has a display. At present, many servers use BMC (executive server remote management controller, the English full name is Baseboard Management Controller) as a graphics card, but some servers have high requirements for display performance. Higher, it needs on-board independent graphics card and external AD chip to use, not only can realize local display, but also can realize KVM OVER IP function after connecting to BMC chip through AD chip, but because the VGA display channel of independent graphics card usually needs to check whether Connect the VGA monitor to determine whether to output the VGA signal. When the VGA monitor is not connected locally, the VGA signal will not be output, which will cause the remote KVM OVER IP display to fail.

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