Troubleshooting the SWAN Concentrator and WAN Subsystem

Correcting SWAN Concentrator Configuration Errors
This procedure explains how to correct the following common ServerNet wide area network (SWAN)
configuration errors:
The ServerNet wide area network (SWAN) concentrator is configured to use the wrong Ethernet
adapters.
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The SWAN concentrator is configured to use the wrong NonStop TCP/IP processes.●
The wrong Internet Protocol (IP) addresses are configured for the SWAN concentrator.●
A ConMgr process, WANBoot process, SNMP trap multiplexer process, or TFTP server process
has not been added or is not configured correctly.
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Correcting the Ethernet Adapter Configuration:
The following are some common causes of incorrect Ethernet adapter configurations:
The SWAN concentrator is configured to use a port on one Ethernet adapter but is physically
connected to another Ethernet adapter. To solve this problem, you can either reconnect the cable to
the configured Ethernet adapter port or reconfigure the SWAN concentrator to use the Ethernet
adapter port to which it is physically connected.
●
The SWAN concentrator is connected to Ethernet adapters located in different processor or I/O
enclosures. To solve this problem, you must select a port on an Ethernet adapter in the same
processor enclosure or I/O enclosure as one of the Ethernet adapters to which the SWAN
concentrator is connected, and then reconfigure the SWAN concentrator to use the new Ethernet
adapter port.
●
Note: If there are active communications lines using the SWAN concentrator, you must stop them
using the SCF STOP LINE or SCF ABORT LINE command (for example, STOP LINE $LINE1). If you do
not know the names of the communications lines that are using the SWAN concentrator, use the SCF
STATUS ADAPTER command to identify them.
To change an Ethernet adapter configuration for a SWAN concentrator, do the following:
1 Select a port on an Ethernet adapter that is located in the same processor enclosure or I/O
enclosure as one of the Ethernet adapters to which the SWAN concentrator is currently
connected.
Use the SCF INFO ADAPTER command to display the E4SAs and FESAs on the
system:
a.
INFO ADAPTER $ZZLAN.*
The example shows the output of this command.
Use the SCF INFO LIF command to determine the logical interface (LIF) configured for
each port on each Ethernet adapter:
b.
INFO LIF $ZZLAN.*
The example shows the output of this command.