function newtt=setTT(tt,xDSLlist)
%setTT - replaces generic DSL with specific implementation as 
%        defined in xDSLlist
%
% Parameter:    tt         Topology structure
% Parameter:    xDSLlist   DSL mapping list
% Returns:      newtt      Modified topology structure
%
% Example(s):
%
%% ===========================================================================

%% ===========================================================================
% Copyright (C):                                        
%       1999 by Telia Research AB, Lulea, Sweden;                
%       2000-2003 by Forschungszentrum Telekommunikation Wien, Austria;
%                                                         All rights reserved.
% Project       : FTW's xDSLsimu
% Author(s)     : Tomas Nordstrom (Tomas.Nordstrom@FTW.at)
%               : Daniel Bengtsson (Daniel.J.Bengtsson@Telia.se)
%               : Bo Engstrom (bosse@upzide.com)
%
% CVS:       $Id: setTT.m,v 3.4 2003/11/03 12:33:22 tono Exp $
%% ===========================================================================
% Change History
%      1999-12-01 (DaB) Created
%      2000-02-17 (GS)  The second input argument ('X') in 'size(xDSLlist,X)'
%                       was changed to the value of 2 because each of
%                       the systems to be investigated should be
%                       represented by their specific PSD's and not
%                       only by their generic name definitions.
%      2001-06-17 (Bosse) Octave port
%      2002-07-01 (PeKa) Octave to Matlab compatibility port
%      2003-11-03 (ToNo) Lists now use cell arrays for both Octave and Matlab
%% ===========================================================================

newtt=tt;
len_a=length(xDSLlist);
len_b=length(tt.traffic);
for a=1:len_a
  y=xDSLlist{a};
  test=y.name;
  for b=1:len_b
    name=tt.traffic{b}{3};
    if strcmp(test,name)
      x=xDSLlist{a};
      newtt.traffic{b}{3}=x.used;
    end
  end
end