What are the MX services scale subscriber, l2tp and mobile-ip licenses

[ Edited ]
‎01-06-2014 01:38 PM

Hi There,


We have Juniper MX80 and MX5's and a show system licenses shows:


                                 Licenses     Licenses    Licenses    Expiry

  Feature name                       used    installed      needed 

  scale-subscriber                      0         1000           0    permanent

  scale-l2tp                            0         1000           0    permanent

  scale-mobile-ip                       0         1000           0    permanent


I've Google'd but I have no idea what these license actually do? 


If anyone knows what they are for it would be much appreciated.