Sun Microsystems 3U 用户手册

102

SunATM 3U CompactPCI Adapter Installation and User’s Guide • February 2001

4. Verify that an address has been registered with the switch.

The

qccstat(1M)

command also lists all addresses registered to the interface with

the switch. See “ATM Addresses and Address Registration” on page 66, for more
information about address registration. If there are no addresses registered, the

ilmid

daemon on your system is not communicating properly with the switch.

■

Verify that there are incoming packets on VC 16 using

atmstat(1M)

If there are no incoming packets, the switch is not responding to ILMI requests.
Check its ILMI configuration.

■

Verify that there are outgoing packets on VC 16 using

atmstat(1M)

If you do not see any outgoing packets on VC 16, your interface is not
transmitting ILMI packets. Verify that

ilmid

is running on your system, and if

necessary, start it in the background. Starting

ilmid

with the

-v

flag causes it to

print a notice for every message received or transmitted, along with other
diagnostic information.

5. Interfaces that are not running Classical IP or LAN Emulation will not appear in

the output of the

ifconfig

command.

ifconfig(1M)

displays interfaces that have been configured for IP. In order to

support IP, ATM interfaces must run either Classical IP or LAN Emulation.
Therefore, an ATM interface that is not configured to support IP by running one of
these two protocols will not be displayed by

ifconfig

6. Verify the packets that are moving over the network with the

/etc/opt/

SUNWconn/bin/atmsnoop

command.

▼

To Diagnose Classical IP Configuration
Problems

1. Check all of the generic configuration points.

These are issues that apply to all SunATM interfaces, so they all must be working in
order for Classical IP to work.

2. Verify the output of

ifconfig(1M)

Executing the command

ifconfig -a

displays the SunATM interface,

N, where

N is the instance number.

■

If your interface does not appear, an error probably occurred during the boot
process.

Check for error messages during the boot process. The meanings and possible
solutions for error messages can be found in “Error Messages” on page 110.

■

If your interface appears but has incorrect information, verify your configuration
files.