Cisco Cisco CRS-1 4-Slot Single-Shelf System Licensing Information

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                        Open Source Used In Cisco IOS XR Release 4.0.1
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library.  If this is what you want to do, use the GNU Library General  
Public License instead of this License.
 
1.4 GNU Bison 1.28 
1.4.1 Available under license : 
Source code files that are output from GNU Bison contain this text: /* As a special exception, when this file is
copied by Bison into a Bison output file, you may use that output file without restriction. This special exception was
added by the Free Software Foundation in version 1.24 of Bison. */   
  
Bison is free software; you can redistribute it and/or modify   
it under the terms of the GNU General Public License as published by   
the Free Software Foundation; either version 2, or (at your option)   
any later version.   
  
Bison is distributed in the hope that it will be useful,   
but WITHOUT ANY WARRANTY; without even the implied warranty of   
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   
GNU General Public License for more details.   
  
You should have received a copy of the GNU General Public License   
along with Bison; see the file COPYING.  If not, write to   
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,   
Boston, MA 02111-1307, USA.   
  
    GNU GENERAL PUBLIC LICENSE
       Version 2, June 1991
 
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
    59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
 
    Preamble
 
 The licenses for most software are designed to take away your
freedom to share and change it.  By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users.  This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it.  (Some other Free Software Foundation software is covered by
the GNU Library General Public License instead.)  You can apply it to
your programs, too.
 
 When we speak of free software, we are referring to freedom, not