SWAN Concentrator and WAN Subsystem Troubleshooting Guide

Verifying the SWAN Configuration
SWAN Concentrator and WAN Subsystem Troubleshooting Guide—426992-008
2-5
Correcting SWAN Concentrator Configuration Errors
Correcting SWAN Concentrator Configuration
Errors
This procedure explains how to correct these common ServerNet wide area network
(SWAN) configuration errors:
•
The ServerNet wide area network (SWAN) concentrator is configured to use the
wrong Ethernet adapters.
•
The SWAN concentrator is configured to use the wrong 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.
Correcting the Ethernet Adapter Configuration
These are 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.
To change an Ethernet adapter configuration for a SWAN concentrator:
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.
Display the E4SAs, FESAs, GESAs, and G4SAs on the system by using the SCF
INFO ADAPTER command:
INFO ADAPTER $ZZLAN.*
Identifying the LAN Adapters on a System on page A-11 shows the output of this
command.
Note. If active communications lines are using the SWAN concentrator, you must stop them by
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 SERVER command to identify them.