SWAN Concentrator and WAN Subsystem Troubleshooting Guide

Verifying the SWAN Configuration

SWAN Concentrator and WAN Subsystem Troubleshooting Guide—426992-008

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Verifying a SWAN Concentrator Configuration

Scan the command output for the TCP/IP processes and IP addresses you

found using the SCF INFO ADAPTER command. Note the logical interfaces

(LIFs) associated with the host IP addresses used by the SWAN concentrator.

Determining the TCP/IP Process and IP Address for a LIF on page A-8 shows

the output of these commands and explains how to interpret that output.

c. Determine the name of the E4SA, FESA, GESA, or G4SA on which each LIF is

configured by using use the SCF INFO LIF command for each LIF you found in

Step b:

INFO LIF $ZZLAN.lif-name

Determining the LIFs and PIFs for an Adapter on page A-10 shows the output

of this command and explains how to interpret that output.

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 1, substep a and the physical location of the Ethernet

adapters in Step 1, substep b.

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 verify that the SWAN concentrator's Ethernet cables are properly

connected.

3. Verify that the IP addresses associated with the preferred and alternate TCP/IP

processes configured for the SWAN concentrator are on different subnets.

You identified the TCP/IP processes and IP addresses configured for the SWAN

concentrator in Step 1, substep a using the SCF INFO ADAPTER command.

4. Verify that the IP addresses associated with the SWAN concentrator's Ethernet

path A are on the same subnet as the IP address for the preferred TCP/IP process

and the IP addresses associated with the SWAN concentrator's Ethernet path B

are on the same subnet as the IP address for the alternate TCP/IP process. (Note

this is true only if the SWAN concentrator is not connected through a router.)

Use the SCF INFO PATH command to display the IP addresses for each path on

the SWAN concentrator:

INFO PATH $ZZWAN.#adapter-name.*

Determining the IP Addresses for a SWAN Concentrator on page A-29 shows the

output of this command.

5. Verify that the IP addresses associated with the SWAN concentrator's Ethernet

path A are on a different subnet than the IP addresses associated with the SWAN

Note. The FESA and GESA have only one port.