Frame-relay networks over token-ring connections

Users who interconnect NCPs with token-ring connections can have a private frame-relay network over these token-ring connections without the need for additional physical lines.

Frame-relay over token-ring resources include a PU type 1 defined on a token-ring physical line and leased logical lines associated with this PU with multiple type 1 PUs.

Code ECLTYPE=(PHYSICAL,ANY) on the GROUP definition statement to specify NTRI physical resources.

The COMRATE operand value specified for the physical PU is used with the DATABLK operand value on the associated token-ring physical line to determine each protocol's guaranteed bandwidth (in bytes), relative to each other, of the total token-ring bandwidth.

The DATABLK operand on the token-ring physical line has a default value of 2048. This DATABLK value is used along with the COMRATE value specified for the associated logical line to determine the logical line's guaranteed transmission bandwidth.

The NCP major node excerpt that follows shows how the ECLTYPE, COMRATE, and DATABLK operands are used in defining physical definitions for a frame-relay network over a token-ring connection.

***********************************************************************
*  PHYSICAL DEFINITIONS FOR FRAME-RELAY PORTS                         *
***********************************************************************
*
A31NTRI1 GROUP ECLTYPE=(PHYSICAL,ANY),                                 *
               USSTAB=AUSSTAB,                                         *
               ISTATUS=ACTIVE,                                         *
               ADAPTER=TIC2,                                           *
               ANS=CONTINUE,                                           *
               TRSPEED=16,                                             *
               XID=NO
*
A31TR88  LINE  ADDRESS=(1088,FULL),                                    *
               DATABLK=2048,                                           *
               PORTADD=88,                                             *
               MAXTSL=1028,                                            *
               MAXFRAME=4096,                                          *
               XMONLNK=YES,                                            *
               LOCADD=400003101088
A31PU88A PU    PUTYPE=1
*
A31PU88B PU    NETWORK=FRELAY,COMRATE=(,1),PUTYPE=1,ADDR=03
*
A31TR89  LINE  ADDRESS=(1089,FULL),                                    *
               PORTADD=89,                                             *
               DATABLK=2048,                                           *
               MAXTSL=1028,                                            *
               MAXFRAME=4096,                                          *
               XMONLNK=YES,                                            *
               LOCADD=400003101089
A31PU89A PU    PUTYPE=1
*
A31PU89B PU    NETWORK=FRELAY,COMRATE=(,1),PUTYPE=1,ADDR=03
*
*
A31TR92  LINE  ADDRESS=(1092,FULL),                                    *
               PORTADD=92,                                             *
               MAXTSL=1028,                                            *
               DATABLK=2048,                                           *
               MAXFRAME=4096,                                          *
               XMONLNK=YES,                                            *
               LOCADD=400003101092
A31PU92A PU    PUTYPE=1
*
A31PU92B PU    NETWORK=FRELAY,COMRATE=(,1),PUTYPE=1,ADDR=03
*
A31TR93  LINE  ADDRESS=(1093,FULL),                                    *
               PORTADD=93,                                             *
               DATABLK=2048,                                           *
               MAXTSL=1028,                                            *
               MAXFRAME=4096,                                          *
               XMONLNK=YES,                                            *
               LOCADD=400003101093
A31PU93A PU    PUTYPE=1
*
A31PU93B PU    NETWORK=FRELAY,COMRATE=(,1),PUTYPE=1,ADDR=03
*
***********************************************************************

Code ECLTYPE=(LOGICAL,FRELAY) on the GROUP definition statement to specify that the group, subordinate lines, and PUs are to be treated as frame-relay resources.

On the PHYSRSC operand, specify the name of the frame-relay over token-ring physical PU (NETWORK=FRELAY on the PU definition statement) defined on the token-ring physical line.

When COMRATE is defined on a token-ring logical line statement, the value on the COMRATE operand is used along with the DATABLK value specified on the token-ring physical line to determine the logical line's guaranteed transmission bandwidth.

The NCP major node excerpt that follows illustrates how the ECLTYPE, PHYSRSC, and COMRATE operands are used in defining logical definitions for a frame relay port over a token ring connection.

***********************************************************************
*  LOGICAL DEFINITIONS FOR FRAME-RELAY PORT A31PU89B                  *
***********************************************************************
*
A31FRTG2 GROUP ECLTYPE=(LOGICAL,FRELAY),PUTYPE=1,TYPE=NCP,DIAL=NO,     X
               LNCTL=SDLC,LINEADD=NONE,COMPOWN=YES,RETRIES=(6,0,0,6),  X
               PHYSRSC=A31PU89B,PUDR=YES
A31LFR1B LINE  MAXFRAME=4096,NPACOLL=(YES,EXTENDED),MAXPU=240,         X
               COMRATE=(,1)
A31LM89A PU    LMI=ANSI,ANS=CONT,ADDR=C4400000711089
A31P8920 PU    ADDR=20
A31P8921 PU    ADDR=21
A31P8922 PU    ADDR=22
A31P8923 PU    ADDR=23
A31P8924 PU    ADDR=24
A31P8925 PU    ADDR=25
A31P8926 PU    ADDR=26
A31P8927 PU    ADDR=27
A31P8928 PU    ADDR=28
A31P8929 PU    ADDR=29
A31P8930 PU    ADDR=30
A31P8931 PU    ADDR=31
*
A31P8950 PU    ADDR=50
A31P8951 PU    ADDR=51
A31P8952 PU    ADDR=52
A31P8953 PU    ADDR=53
A31P8954 PU    ADDR=54
A31P8955 PU    ADDR=55
A31P8956 PU    ADDR=56
A31P8957 PU    ADDR=57
A31P8958 PU    ADDR=58
A31P8959 PU    ADDR=59
A31P895A PU    ADDR=5A
A31P895B PU    ADDR=5B
A31P895C PU    ADDR=5C
A31P895D PU    ADDR=5D
A31P895E PU    ADDR=5E
A31P895F PU    ADDR=5F
A31P8999 PU    ADDR=99
***********************************************************************