[SI-LIST] Does shielding have any effect ???????

Dear all,
    I have a query regarding shielding the signals 
in Allegro/Spectra quest.
  I simulated some signals at 50MHz using Allegro/Spectra quest
and found that there are overshoots and undershoots on the 
signals and also EMI. Also there is a crosstalk comming into picture.
When i shielded the signal and tried for simulation, i 
found that there is no change. I even attached the 'shield_type'
and 'shield_net' property to the signals.
My question is, does the tool recognise the shielding property
and will the simulation changes ?? 
with regards,
kishore.
Yahoo! India Matrimony: Find your partner online.

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