ATM Configuration and Troubleshooting Guide

Troubleshooting

Troubleshooting LAN Emulation

Chapter 9 231

Step 4. Ensure that you have conﬁgured all intermediate switches. In particular,

if you conﬁgured a VC with ABR trafﬁc type on both end nodes, you must

also conﬁgure the intermediate switches for ABR.

Step 5. For HP-UX 11.X, check that the atminitd daemon is running by using

this command:

ps -ef | grep atminitd

The output should look like this:

root 470 1 0 09:33:03 ? 0:00 /usr/sbin/atminitd

If necessary, start the daemon by using this command:

/usr/sbin/atminitd

C Check the IP ARP table to ensure that the destination end system’s IP

address can be resolved into a MAC address by the BUS. The source

system issues an IP ARP request to the BUS, which broadcasts it to all

end systems on the emulated LAN. The appropriate destination end

system replies and its MAC address is contained within the reply.

Step 1. Ensure that the ARP table is cleared of the destination system’s entry, by

using this command:

arp -d

destination_system_IP_address

Invalid entries in the ARP cache are timed-out after 20 minutes. So, you

need to ﬁrst clear the ARP cache of the destination address mapping, to

be sure that the returned IP-to-MAC address mapping is current and

valid.

Step 2. Type this command:

arp

destination_system_IP_address

to check if the end system’s IP address can be resolved into a MAC

address.

Step 3. If the IP-to-MAC address is displayed, the destination IP address is

recognized and reachable by the BUS.

Step 4. If the destination IP-to-MAC address is not displayed, do the following: