Expand Configuration and Management Manual (H06.21+, J06.10+)

Configuring Multi-Line Paths
Expand Configuration and Management Manual — 529522-013
13 - 16
Path-Logical Device Modifiers
•
This SCF ADD DEVICE command creates a line-logical device named $LINE1 for
the direct-connect line. Note 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
•
This SCF ADD DEVICE command creates a line-logical device named $LINE2 for
the Expand-over-SNA line. Note 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
These 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
•
L4CWNDCLAMP for the configuration of the congestion control transmit window
feature
For configuration considerations for these features, see Section
17, Subsystem
Description. For more information on the advantages and disadvantages of these
features, see Section
3, Planning a Network Design.
The PATHBLOCKBYTES, PATHPACKETBYTES, L4CONGCTRL_ON,
SUPERP
ATH_ON, and L4CWNDCLAMP modifiers are described in detail in
Section
16, Expand Modifiers.
PEXPPATH Modifiers
The disk file $SYSTEM.SYSnn.PEXPPATH defines modifiers for path-logical devices.
Table
13-3 on page 13-17 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 V
alue” column to indicate which modifier is present in the
profile. For a complete description of the modifiers listed in this table, see Section 16,
Expand Modifiers.