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

Troubleshooting
Expand Configuration and Management Manual — 529522-013
20 - 15
WAN Subsystem Problems
Ethernet ports to the same segment, either omit ALTTCPIP or set it to a NonStop
TCP/IP process that does not exist. Both solutions will cause this EMS message:
“Connected to Wrong ETHERNET PORT.”
•
The SWAN concentrator’s Ethernet ports are reversed. If the ports are reversed,
you will receive this EMS message: “Connected to Wrong ETHERNET PORT.”
•
There is a firmware failure in a communications line interface processor (CLIP)
before the FIRMUP procedure. Power cycle the SWAN concentrator if the kernel is
nonresponsive.
For more information on configuring a SWAN concentrator, see the WAN Subsystem
Configuration and Management Manual.
WAN Subsystem Problems
Expand line-handler processes and $NCP are WAN subsystem devices; they rely on
various WAN subsystem components to operate correctly. This subsection provides
WAN subsystem troubleshooting guidelines and identifies common WAN subsystem
configuration problems.
Troubleshooting Check List
Use the check list provided in Table 20-9 to solve problems related to the WAN
subsystem.
Table 20-9. WAN Subsystem Problem-Resolution Check List (page 1 of 2)
Task Procedure
Check the state of the WAN
subsyste
m manager process
($ZZWAN).
To determine if $ZZWAN is running, use this SCF
command:
STATUS PROCESS $ZZKRN.#ZZWAN
If $ZZWAN is not running, it must be started. See
the W
AN Subsystem Configuration and
Management Manual.
Check the configuration of the WAN
subsyste
m manager process
($ZZWAN).
To display configuration information for $ZZWAN,
use this SCF command:
INFO PROCESS $ZZKRN.#ZZWAN
If $ZZWAN is not configured correctly, it must be
reco
nfigured. See the WAN Subsystem
Configuration and Management Manual.