Penguin Computing Relion 1900e, Technical Manual

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Relion 1900e/2900e Manual
Revision 1.0 88
The KVM-redirection feature automatically senses video resolution for best possible screen capture and
provides high-performance mouse tracking and synchronization. It allows remote viewing and configuration
in pre-boot POST and BIOS setup, once BIOS has initialized video.
Other attributes of this feature include:

Encryption of the redirected screen, keyboard, and mouse

Compression of the redirected screen.

Ability to select a mouse configuration based on the OS type.

Support user definable keyboard macros.
KVM redirection feature supports the following resolutions and refresh rates:

640x480 at 60Hz, 72Hz, 75Hz, 85Hz, 100Hz

800x600 at 60Hz, 72Hz, 75Hz, 85Hz

1024x768 at 60Hx, 72Hz, 75Hz, 85Hz

1280x960 at 60Hz

1280x1024 at 60Hz

1600x1200 at 60Hz

1920x1080 (1080p)

1920x1200 (WUXGA)

1650x1080 (WSXGA+)
9.3.2 Remote Console
The Remote Console is the redirected screen, keyboard and mouse of the remote host system. To use the
Remote Console window of your managed host system, the browser must include a Java* Runtime
Environment plug-in. If the browser has no Java support, such as with a small handheld device, the user can
maintain the remote host system using the administration forms displayed by the browser.
The Remote Console window is a Java Applet that establishes TCP connections to the BMC. The protocol
that is run over these connections is a unique KVM protocol and not HTTP or HTTPS. This protocol uses
ports #7578 for KVM, #5120 for CDROM media redirection, and #5123 for Floppy/USB media redirection.
When encryption is enabled, the protocol uses ports #7582 for KVM, #5124 for CDROM media redirection,
and #5127 for Floppy/USB media redirection. The local network environment must permit these
connections to be made, that is, the firewall and, in case of a private internal network, the NAT (Network
Address Translation) settings have to be configured accordingly.
9.3.3 Performance
The remote display accurately represents the local display. The feature adapts to changes to the video
resolution of the local display and continues to work smoothly when the system transitions from graphics to
text or vice-versa. The responsiveness may be slightly delayed depending on the bandwidth and latency of
the network.
Enabling KVM and/or media encryption will degrade performance. Enabling video compression provides the
fastest response while disabling compression provides better video quality.
For the best possible KVM performance, a 2Mb/sec link or higher is recommended.
The redirection of KVM over IP is performed in parallel with the local KVM without affecting the local KVM
operation.