ATM Configuration and Troubleshooting Guide

Troubleshooting
Checking the ATM Address Network Prefix
Chapter 9 219
Checking the ATM Address Network Prefix
The steps to follow to check the ATM address network prefix—a manual
prefix and a dynamic prefix—are given in the sections below.
Checking a Manual Network Prefix
The flowchart for checking an ATM address manual network prefix is
shown in Figure 9-7 below. Each of the circled letters is described on the
pages after the flowchart.
The ATM adapter must be started before you use this flowchart. The
state can be checked by using this command:
atmmgr card_inst_num show -p
For example, the command atmmgr 0 show -p checks the status of an
ATM adapter with card instance 0, as follows:
Physical statistics and status
Status : In service
MAC address : 080009c6fc90
Medium type : sonet, multimode fiber
To confirm how the network prefix was specified, run SAM and look at
the “Configure ATM Card Parameters” screen, or examine the ATM
adapter configuration file (for example, /etc/atm/atm_0/nic). Do not
edit this file or the network interface files—for example,