(2) .-MAXBFRU--=--5-----------------. | (1) | +-MAXBFRU--=--1-----------------+ >>-+-------------------------------+--------------------------->< '-MAXBFRU--=--number_of_buffers-'
Notes:
- MAXBFRU defaults to 1 when HPR=NO, XID=NO, CONNTYPE=LEN, or the VTAM node is not HPR capable.
- MAXBFRU defaults to 5 when HPR=YES, XID=YES, CONNTYPE=APPN, and the VTAM node is HPR capable.
| statements: | PU |
| dependencies: | TRLE |
| range: | 1–255 |
Specifies the number of buffer units that VTAM® uses to receive data from the physical unit. These buffer units are elements of the IOBUF buffer pool.
number_of_buffers is a decimal integer. Always code MAXBFRU such that the bufsize value for the IOBUF buffer pool times MAXBFRU is equal to or greater than the maximum RU size used by the controller.
For more information about determining a value for MAXBFRU, see z/OS Communications Server: SNA Network Implementation Guide.
Note: When the TRLE operand is coded on the PU definition
statement, the MAXBFRU value coded on the PU definition statement
(if coded) is ignored. VTAM uses
the MAXBFRU value from the TRLE definition statement in the TRL major
node.