SWAN Concentrator and WAN Subsystem Troubleshooting Guide

Verifying the SWAN Hardware

SWAN Concentrator and WAN Subsystem Troubleshooting Guide—426992-008

4-12

Verifying SWAN Concentrator Cabling

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

the output of these commands.

c. Determine the E4SA, FESA, GESA, or G4SA ports configured for the SWAN

concentrator by using the SCF INFO LIF command for each LIF you found

using the SCF INFO SUBNET command:

INFO LIF $ZZLAN.lif-name

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

of this command.

d. Examine the cable connected to path A on the SWAN concentrator and make

sure that it is connected to the E4SA, FESA, GESA, or G4SA port associated

with the preferred TCP/IP process.

e. Examine the cable connected to path B on the SWAN concentrator and make

sure that it is connected to the E4SA, FESA, GESA, or G4SA port associated

with the alternate TCP/IP process.

2. Make sure that the cables connected to path A and path B on the SWAN

concentrator are connected to different Ethernet segments.

a. Determine the preferred and alternate TCP/IP processes and the IP addresses

that support the SWAN concentrator by using the SCF INFO ADAPTER

command:

INFO ADAPTER $ZZWAN.#adapter-name

Determining the TCP/IP Processes and IP Addresses for a SWAN

Concentrator on page A-7 shows the output of this command and explains how

to interpret it.

b. Examine the preferred and alternate IP addresses (HOSTIP Address and

ALTHOSTIP Address fields of the SCF INFO ADAPTER display). The IP

addresses must be on different subnets.

c. Examine the cables connected to path A and path B on the SWAN

concentrator and make sure that they are connected to the correct Ethernet

segments.

3. Determine if the SWAN concentrator's Ethernet cables are operational. Finding a

bad cable involves standard network-troubleshooting techniques.