On Thu, 18 Dec 2003, James R. Leu wrote:

quoted

(Btw, there's a lot of claimed IPR on MPLS technologies, not sure if 
that's a problem or not.)

Up till now there has not been any issues.  Most of the IPR claims state
that the holder will grant "a non-exclusive license under reasonable and
non-discriminatory terms and conditions".

FWIW, that's legal mumbo jumbo which means nothing in practice.  
Charging 100$ fee per computer where the code is run or deployed is
counted as reasonable :-)
 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings