Channel-attached NCP, local SNA, and leased SDLC connections

In the HPR configuration shown in Figure 1, the endpoints of the RTP connection are SSCP7E and SSCPAA. Both SSCP1A and SSCP2A have been started with the start option VRTG=YES, and, therefore, the connection between SSCP1A and SSCP2A constitutes the VR-based TG portion of the HPR route. An APPNTOSA table is recommended to map APPN COS names to the subarea COS names used by the VR-based TG. For a sample APPNTOSA table, see APPN-to-subarea COS mapping table.

In the example that follows from the NCP major node NCP3AB8 residing on SSCP1A, HPR=YES and LLERP=REQUIRED are coded on P3A217B1 (for the 2.1 connection to SSCP7E) and HPR=YES and LLERP=NOTPREF are coded on P3A4956M (for the leased SDLC connection to NCP4).

NCP3AB8  TITLE 'CHANNEL ATTACHED 11.7 NCP'
*---------------------------------------------------------------------
*     NCP3AB8
*---------------------------------------------------------------------
*---------------------------------------------------------------------
*        S D L C   G R O U P   F O R   A P P N   D E V I C E S
*---------------------------------------------------------------------
*
GRP3A9   GROUP LNCTL=SDLC,DIAL=NO,TYPE=NCP,POLLED=YES,                 X
               CLOCKNG=EXT,DUPLEX=FULL,SPEED=1200
LN3A11   LINE  ADDRESS=03F
*
         SERVICE ORDER=(P3A4956M)
*
P3A4956M PU    PUTYPE=2,ADDR=C1,XID=YES,ISTATUS=INACTIVE,              X
               SSCPFM=USSSCS,MAXDATA=256,MAXOUT=1,PASSLIM=1,           X
               OWNER=SSCP1A,NETID=NETA,ANS=CONTINUE,                   X
               CONNTYPE=APPN,CPCP=YES,HPR=YES,LLERP=NOTPREF
*
*---------------------------------------------------------------------
*        L O C A L S N A   G R O U P S
*
*        DEFINITIONS FOR CHANNEL ATTACHED PU 2.1 (LOCALSNA)
*---------------------------------------------------------------------
*
GRP3A7B1 GROUP LNCTL=CA,CA=TYPE5,NCPCA=ACTIVE
LN3A7B1  LINE  ADDRESS=052,TIMEOUT=840.0,CASDL=420.0,TRANSFR=255,      X
               INBFRS=128,ANS=CONT
P3A217B1 PU    PUTYPE=2,OWNER=SSCP1A,XID=YES,                          X
               CONNTYPE=APPN,CPCP=YES,HPR=YES,LLERP=REQUIRED
ECHOB12  LU    LOCADDR=0,PACING=(1),LUDR=YES,RESSCB=10

In the example that follows from the NCP major node NCP4AB8 residing on SSCP2A, HPR=YES and LLERP=NOTPREF are coded on P4A4956C (for the leased SDLC connection to NCP3) and P4A21AA1 (for the 2.1 connection to SSCPAA).

NCP4AB8  TITLE 'CHANNEL ATTACHED 11.8 NCP'
*---------------------------------------------------------------------
*     NCP4AB8
*---------------------------------------------------------------------
*---------------------------------------------------------------------
*        S D L C   G R O U P   F O R   A P P N   D E V I C E S
*---------------------------------------------------------------------
*
GRP4A6   GROUP LNCTL=SDLC,DIAL=NO,MODE=SEC,TYPE=NCP,POLLED=YES,        X
               CLOCKNG=EXT,DUPLEX=FULL,SPEED=1200
*
LN4A6    LINE  ADDRESS=04E
*
         SERVICE ORDER=(P4A4956C)
*
P4A4956C PU    PUTYPE=2,ADDR=C1,XID=YES,ISTATUS=INACTIVE,              X
               SSCPFM=USSSCS,MAXDATA=256,MAXOUT=1,PASSLIM=1,           X
               OWNER=SSCP2A,NETID=NETA,ANS=CONTINUE,                   X
               CONNTYPE=APPN,CPCP=YES,HPR=YES,LLERP=NOTPREF
L3A4956G LU    LOCADDR=0,RESSCB=3,PACING=(1,1),VPACING=2,              X
               ISTATUS=INACTIVE
*---------------------------------------------------------------------
*        L O C A L S N A   G R O U P
*
*        DEFINITIONS FOR CHANNEL ATTACHED PU 2.1 (LOCALSNA)
*---------------------------------------------------------------------
*
GRP4AAA1 GROUP LNCTL=CA,CA=TYPE5,NCPCA=ACTIVE
LN4AAA1  LINE  ADDRESS=054,TIMEOUT=840.0,CASDL=420.0,TRANSFR=255,      X
               INBFRS=128,ANS=CONT
P4A21AA1 PU    PUTYPE=2,OWNER=SSCP2A,XID=YES,                          X
               CONNTYPE=APPN,CPCP=YES,HPR=YES,LLERP=REQUIRED
         GENEND