ADDER A.I.M. Uživatelská příručka stáhnout pdf (Strana 42)

INSTALLATIONCONFIGURATIONOPERATION

FURTHER

INFORMATION

INDEX

Conguring the switches and devices

The layout is vital but so too is the conguration:

• Enable IGMP Snooping on all L2 switches.

• Ensure that IGMP Fast-Leave is enabled on all switches with ALIF units connected

directly to them.

• Enable the L3 switch as an IGMP Querier.

• Enable Spanning Tree Protocol (STP) on all switches and importantly also enable

portfast (only) on all switch ports that have ALIF units connected.

• If any hosts will use any video resolutions using 2048 horizontal pixels (e.g. 2048 x

1152), ensure that Jumbo Frames are enabled on all switches.

• Choose an appropriate forwarding mode on all switches. Use Cut-through if available,

otherwise Store and forward.

• Optimize the settings on the ALIF transmitters:

• If color quality is important, then leave Colour Depth at 24 bits and adjust other

controls,

• If moving video images are being shown frequently, then leave Frame Skipping at a

low percentage and instead reduce the Peak bandwidth limiter and Colour Depth.

• Where screens are quite static, try increasing the Background Refresh interval and/

or increasing the Frame skipping percentage setting.

Make changes to the ALIF transmitters one at a time, in small steps, and view typical

video images so that you can attribute positive or negative results to the appropriate

control.

• Ensure that all ALIF units are fully updated to the latest rmware version (at least

v2.1).

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ADDER A.I.M. Uživatelská příručka Strana 42