SNAX/APC Configuration and Management Manual

SCF Commands for SNAX/APC
SNAX/APC Configuration and Management Manual—138787
8-34
ALTER PTNR-MODE Command
If the local LU and partner LU are connected by parallel sessions, the default value
for the MODENAME attribute is SNASVCMG. SNASVCMG is the SNA-defined
mode name that is used for exchanging CNOS requests and replies. The value
SNASVCMG is reserved for this use and cannot be entered as the modename.
The MODENAME attribute cannot be specified with the ALTER PTNR-MODE
command unless the PTNR-MODE object is in the STOPPED state.
RCVWINDOW number
specifies the number of request/response units (RUs) that SNAX/APC can receive
from the partner LU at one time. The partner LU will not send more RUs to
SNAX/APC until SNAX/APC sends a pacing response indicating that it can receive
another pacing window. The valid range is from 0 to 63, and 0 specifies that pacing
is not used.
The RCVWINDOW attribute cannot be specified with the ALTER PTNR-MODE
command unless the PTNR-MODE object is in the STOPPED state.
RESPONSIBLE { SOURCE | TARGET }
specifies the LU that is responsible for selecting and deactivating sessions as a result
of a change that decreases the session limit or the maximum number of
contention-winner sessions for the source or target LU. This value is used as the
RESPONSIBLE parameter of the CHANGE_SESSION_LIMIT CNOS verb.
SOURCE, the default, specifies that the source LU is responsible, while TARGET
specifies that the target LU is responsible.
The RESPONSIBLE attribute cannot be specified with the ALTER PTNR-MODE
command unless the PTNR-MODE object is in the STARTED state.
SENDWINDOW number
specifies the number of request/response units (RUs) that SNAX/APC can send to
the partner LU at one time. SNAX/APC will not send more RUs to the partner LU
until the partner LU sends a pacing response indicating that it can receive another
pacing window. The valid range is from 0 to 63, and 0 specifies that pacing is not
used.
The SENDWINDOW attribute cannot be specified with the ALTER PTNR-MODE
command unless the PTNR-MODE object is in the STOPPED state.
Considerations
•
The ALTER PTNR-MODE command is rejected if the local LU is a single-session
LU and the PTNR-MODE object is in the STARTED state.
•
Maximum RU (request unit) size is limited by the underlying access method.
SNAX/XF and SNAX/CDF support RUs up to 4,096 bytes. SNAX/APN supports
RUs up to 16,000 bytes.
•
Since SNAX/APC is unable to find the upper limit of the underlying SNAX access
method (such as SNAX/APN, SNAX/XF, or SNAX/CDF) of an LU until the LU is