Troubleshooting the SWAN Concentrator and WAN Subsystem

Verifying a SWAN Concentrator Configuration

This page summarizes the ServerNet wide area network (SWAN) configuration

requirements and recommendations. It also shows the SCF commands used to determine if

a SWAN concentrator is configured correctly.

Note: Angle brackets (for example, <line-name>) are used in command syntax to

indicate values that you must provide.

1 HP recommends that you connect the SWAN concentrator to ports on two

different Ethernet adapters (E4SAs or FESAs) for improved fault tolerance.

To determine which Ethernet adapters a SWAN concentrator is connected to,

do the following:

a. Use the SCF INFO ADAPTER command to display the HP NonStop

TCP/IP processes used by the SWAN concentrator:

INFO ADAPTER $ZZWAN.#<adapter-name>

Note the names of the TCP/IP processes and IP addresses used by the

SWAN concentrator.

b. Use the SCF INFO SUBNET command to display the subnets configured

on each TCP/IP process you identified using the SCF INFO ADAPTER

command:

INFO SUBNET $<tcpip-process-name>.*

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 IP addresses used by the SWAN

concentrator.

c. Use the SCF INFO LIF command for each LIF you found in Step 1b to

determine the name of the E4SA or FESA on the which each LIF is

configured:

INFO LIF $ZZLAN.<lif-name>

The example shows the output of this command and explains how to

interpret it.