ER0-ER15

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>>-+------------------------------------+----------------------><
   '-ER--n--=--+-(--adjsub--)---------+-'   
               '-(--adjsub--,--tgn--)-'     

Names the adjacent subarea and optionally specifies the transmission group (TG) number for the associated explicit routes originating in the host and leading to the destination subarea.

At least one ER must be specified on the PATH definition statement. You can change the ER value when the ER is deactivated or undefined.
adjsub
Specifies the subarea number (in decimal) of the adjacent subarea to which traffic should be sent from the host subarea for the explicit route being defined.
tgn
Specifies an optional transmission group number for the explicit route being defined.