VIAVI TestCenter - How to set filters for soft streams on DX and PX modules?
Knowledge Base - FAQ
As you may know, DX and PX card does not support analyzer filters (other than the default 32-bit filter over the Stream ID) or filtered stream results with High Speed Analysis enabled (HSRA), however, for DX and PX modules, ONLY streams with high speed analysis disabled support analyzer filters but you will not be able to transmit soft streams from a DX/DX2 module at line rate.
However, the question here is how the analyzer will know soft streams are used in order to enable filtering options for those specific streams.
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