In the excerpt that follows, from a sample NCP major node, MAXSESS=2 specifies that the maximum number of concurrent LU-LU sessions in which the independent LU A03I34A1 can participate is two.

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*     ADDRESS 34 = 9.6 FDX ( DR CAPABLE ) WITH 5 DLU &  5 ILU EACH   *
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A03S34   LINE  ADDRESS=(034,FULL),                                     X
               CLOCKNG=EXT,                                            X
               DUPLEX=FULL,                                            X
               ISTATUS=ACTIVE,                                         X
               MAXPU=25,                                               X
               MODETAB=AMODETAB,                                       X
               NRZI=YES,                                               X
               PACING=7,                                               X
               PUDR=YES,                                               X
               RETRIES=(5,5,5),                                        X
               SPEED=9600
         SERVICE MAXLIST=25
A03P34A  PU    ADDR=C1,                                                X
               XID=YES
A03D34A1 LU    LOCADDR=01
A03D34A2 LU    LOCADDR=02
A03D34A3 LU    LOCADDR=03
A03D34A4 LU    LOCADDR=04
A03D34A5 LU    LOCADDR=05
A03I34A1 LU    LOCADDR=0,RESSCB=5,MAXSESS=2
A03I34A2 LU    LOCADDR=0,RESSCB=5
A03I34A3 LU    LOCADDR=0,RESSCB=5
A03I34A4 LU    LOCADDR=0,RESSCB=5
A03I34A5 LU    LOCADDR=0,RESSCB=5