Depending on the rerouting source kind selected on the Definition tab, the Constraint tab may display the following data elements for the selected measure:

• Freeze TPs/Outside IFPZ: Boolean indication (checkmark) if the algorithm to search for alternate horizontal rerouting must freeze the connection to the identified terminal procedures and to route parts outside IFPS Zone (NAT/Oceanic parts). (This data element is only displayed for rerouting measure using the horizontal source kind.)
• List of constraint rules: 0 – n lines of rerouting constraint rules. (This data element is only displayed for rerouting measure using the horizontal or vertical source kind.)
  An Add button next to the constraint rules list allows starting the definition of a new constraint.
• Update Field 15 portion: Free text containing a Field 15 format description of the portion of route to be used for the manual rerouting.