Troubleshooting the SWAN Concentrator and WAN Subsystem

Verifying a WAN Subsystem Device Configuration
This page shows the SCF commands used to determine if a WAN subsystem device (DEVICE object) is
configured correctly.
Note: Angle brackets (for example, <line-name>) are used in command syntax to indicate values that
you must provide.
1 If the device is a line-handler process (also referred to as a WAN subsystem IOP), the
primary and backup processes should be configured in the same processors as the
preferred and alternate TCP/IP processes that support the SWAN concentrator; for example,
in processors 0 and 1 or in processors 2 and 3.
Use the SCF INFO DEVICE command to determine the location of a WAN subsystem IOP:
INFO DEVICE $ZZWAN.#*
The example shows the output of this command and explains how to interpret it.
Note: If you don't know where the preferred and alternate TCP/IP processes are
configured, see Identifying the WAN Subsystem Processes and Objects.
2 Each device has requirements imposed on its configuration by the data communications
subsystem to which it belongs.
Use the SCF INFO DEVICE command with the DETAIL option to check the device-specific
modifiers for the device:
INFO DEVICE $ZZWAN.#<device-name>, DETAIL
The example shows the output of this command.
Note: You must read the configuration and management manual for the data
communications subsystem you are interested in for product-specific requirements.
3 If the device is a line-handler process, check the current modifiers used by the
communications line using the SCF INFO LINE command with the DETAIL option. Checking
current modifiers might be necessary because changes made with the subsystem-specific
SCF ALTER command are not displayed by the SCF INFO DEVICE command.
For example, to check the current Layer 4 attribute settings for an Expand line, use the SCF
INFO PATH command with the DETAIL option:
-> INFO LINE $LINE1, DETAIL
The example shows the output of this command.
Note: Changes made with the WAN subsystem's SCF ALTER DEVICE command are
permanent (they persist through system and processor reloads). Changes made with the
subsystem-specific SCF ALTER LINE commands are temporary (they do not persist through
system and processor reloads).