Expand Configuration and Management Manual (G06.24+)

Configuring Multi-Line Paths
Expand Configuration and Management Manual—523347-008
14-15
Path-Logical Device Modifiers
•
The following SCF ADD DEVICE command creates a line-logical device named
$LINE1 for the direct-connect line. Note that the MLHDIR profile created above is
used.
-> ADD DEVICE $ZZWAN.#LINE1, PROFILE MLHDIR, IOPOBJECT &
$SYSTEM.SYSTEM.LHOBJ, CPU 0, ALTCPU 1, TYPE (63,5), &
RSIZE 0, LINETF 2, MULTI $PATH, CLIP 2, LINE 0, &
ADAPTER SWAN003A, PATH A
•
The following SCF ADD DEVICE command creates a line-logical device named
$LINE2 for the Expand-over-SNA line. Note that the MLHSNA profile created
above is used.
-> ADD DEVICE $ZZWAN.#LINE2, PROFILE MLHSNA, IOPOBJECT &
$SYSTEM.SYSTEM.LHOBJ, CPU 1, ALTCPU 2, TYPE (63,2), &
RSIZE 0, LINETF 3, MULTI $PATH, ASSOCIATEDEV $SNA1, &
ASSOCIATESUBDEV #SNAM
Path-Logical Device Modifiers
This subsection describes the modifiers provided to configure special features and the
default values and ranges for the modifiers contained in the PEXPPATH profile.
Modifiers for Special Features
The following modifiers are provided in the PEXPPATH profile to enable you to
configure special features:
•
PATHBLOCKBYTES for the multipacket frame feature
•
PATHPACKETBYTES for the variable packet size feature
•
L4CONGCTRL_ON for the congestion control feature
•
SUPERPATH_ON for the Expand multi-CPU feature
For configuration considerations for these features, refer to Section 18, Subsystem
Description. For information about the advantages and disadvantages of these
features, refer to Section 3, Planning a Network Design
.
The PATHBLOCKBYTES, PATHPACKETBYTES, L4CONGCTRL_ON, and
SUPERPATH_ON modifiers are described in detail in Section 17, Expand Modifiers.
PEXPPATH Modifiers
The disk file $SYSTEM.SYSnn.PEXPPATH defines modifiers for path-logical devices.
Table 14-3 lists the default value and range of values for each modifier in this profile, if
applicable. For modifiers that are mutually exclusive, a check mark (3) is shown in the
“Default Value” column to indicate which modifier is present in the profile. For a
complete description of the modifiers listed in this table, refer to Section 17, Expand
Modifiers.