Troubleshooting the SWAN Concentrator and WAN Subsystem
2 The SWAN concentrator must be configured to use the TCP/IP processes and
IP addresses that are configured for the ports on the Ethernet adapters to
which the SWAN concentrator is connected.
You identified the Ethernet adapters and ports configured for the SWAN
concentrator in Step 1a and the physical location of the Ethernet adapters in
Step 1b. To determine if the SWAN concentrator is physically connected to the
correct Ethernet adapters and ports, go to the service side of the processor or
I/O enclosure and make sure that the SWAN concentrator's Ethernet cables
are properly connected.
The figure shows the ports on an E4SA and how they are labeled. (The FESA
has only one port.)
3 The IP addresses associated with the preferred and alternate TCP/IP
processes configured for the SWAN concentrator must be on different
subnets.
You identified the TCP/IP processes and IP addresses configured for the
SWAN concentrator in Step 1 using the SCF INFO ADAPTER command. Click
here to see an example of SCF INFO ADAPTER command output.
4 The IP addresses associated with the SWAN concentrator's Ethernet path A
must be on the same subnet as the IP address for the preferred TCP/IP
process. The IP addresses associated with the SWAN concentrator's Ethernet
path B must be on the same subnet as the IP address for the alternate TCP/IP
process.
Use the SCF INFO PATH command to display the IP addresses for each path
on the SWAN concentrator:
INFO PATH $ZZWAN.#<adapter-name>.*
5 The IP addresses associated with the SWAN concentrator's Ethernet path A
must be on a different subnet than the IP addresses associated with the
SWAN concentrator's Ethernet path B.
You identified the IP addresses associated with the SWAN concentrator's path
A and path B in Step 4, using the SCF INFO PATH command.
Note: This rule is valid if the preferred and alternate TCP/IP processes are
configured on different subnets as stated in Step 3.