What is KVM over IP device?
KVM over IP switches (also known as IP KVM switches) provide secure bios level access and control of servers and other network devices utilizing a browser via the network. KVM over IP solutions can be used to enhance or to replace in-band solutions such as RDP, VNC, SSH or other out-of-band access solutions such as remote access cards for a more reliable and secure way to manage an IT infrastructure. KVM over IP solutions can also be integrated with power strips to provide remote reboot capabilities and measure power consumption down to the outlet level. Additional features of KVM over IP include Virtual Media, Command Line Access to serial ports and support for Smart Card/CAC readers. KVM over IP switches come in various configurations to support every IT environment from large data centers to stand alone server racks as well as distributed environments including labs and branch offices.
Source = http://www.42u.com/kvm-over-ip.htm
KVM over IP devices use a dedicated microcontroller and potentially-specialized video capture hardware to capture the video, keyboard, and mouse signals. Compress and convert them into packets, and send them over an Ethernet link to a remote console application that unpacks and reconstitutes the dynamic graphical image. These devices allow multiple computers to be controlled remotely across a wide area network, local area network or telephone-line using the TCP/IP protocols. There are performance issues related with LAN/WAN hardware, standard protocols and network latency so user management is commonly referred to as "near real time". Access to most remote or "KVM" over IP devices today use a web browser but proprietary viewer software can increase performance.
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