DETAILED STEPS
Command or Action
Purpose
Step 1
ATM# configure terminal
Selects the terminal option and enters global configuration mode.
Step 2
ATM(config)# interface atm>elanname
Selects an ATM ELAN subinterface.
Step 3
ATM(config-if)# lane client tokenring>elanname Identifies the ELAN attached to this subinterface as a Token Ring
ELAN.
Step 4
ATM(config-if)# Ctrl-Z
Exits global configuration mode.
Step 5
ATM(config)# write memory
Saves the configuration file modifications to NVRAM.
In the following example, the ATM module is configured from the terminal. The interface atm 0 interface
configuration command designates that ATM interface 0 is to be configured. The lane client tokenring
command links TrCRF 10 to the ELAN named trcrf-10. The Ctrl-Z command quits configuration mode.
The write memory command loads the configuration changes into NVRAM on the ATM module.
ATM# configure terminal
ATM (config)# interface atm 0
ATM (config-subif)# lane client tokenring 10 trcrf-10
ATM (config-subif)# Ctrl-Z
ATM# write memory
NVRAM stores the current configuration information in text format as configuration commands, recording
only nondefault settings. The ATM module software performs a memory checksum to guard against
corrupted data.
As part of its startup sequence, the ATM module startup software always checks for configuration
information in NVRAM. If NVRAM holds valid configuration commands, the ATM module executes the
commands automatically at startup. If the ATM module detects a problem with its NVRAM or the
configuration it contains, the module goes into default configuration. Problems can include a bad checksum
for the information in NVRAM or the absence of critical configuration information.
Configuring the ATM Module from NVRAM
To configure the ATM module from NVRAM, reexecute the configuration commands in privileged EXEC
mode:
Command
Purpose
ATM(config)#
configure
memory
Configures the ATM module from NVRAM.
Configuring the Prefix on the LightStream 1010 Switch
Before you configure LANE components on a Catalyst 5000 series switch ATM module, you must
configure the Cisco LightStream 1010 switch with the ATM address prefix to be used by all LANE
components in the switch cloud.
Configuring the ATM Module from NVRAM
Default LANE Configuration
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