
Configuring the Cisco NM-1A-T3/E3 Network Module
SVCs
13
Cisco IOS Release 12.4(15)T
Configuring the NSAP Address
Every ATM interface involved with signaling must be configured with a network service access point
(NSAP) address. The NSAP address is the ATM address of the interface and must be unique across the
network.
To configure an NSAP address, complete the tasks described in one of the following sections:
Configuring the ESI and Selector Fields
If the switch is capable of delivering the NSAP address prefix to the router by using ILMI, and the router
is configured with a PVC for communication with the switch via ILMI, you can configure the end station
ID (ESI) and selector fields by using the
atm esi-address
command. The
atm esi-address
command
allows you to configure the ATM address by entering the ESI (12 hexadecimal characters) and the
selector byte (2 hexadecimal characters). The NSAP prefix (26 hexadecimal characters) is provided by
the ATM switch.
To configure the router to obtain the NSAP prefix from the switch and use locally entered values for the
remaining fields of the address, use the following commands, beginning in interface configuration mode:
SUMMARY STEPS
1.
pvc [
name
] 0/16 ilmi
2.
exit
3.
atm esi-address
esi.selector
DETAILED STEPS
The
atm nsap-address
and
atm esi-address
commands are mutually exclusive. Configuring the router
with the
atm nsap-address
command negates the
atm esi-address
setting, and configuring the router
with the
atm esi-address
command negates the
atm nsap-address
setting. For information about using
the
atm esi-address
command, see the section
“Configuring the ESI and Selector Fields”
Command
Purpose
Router(config-if)#
pvc
[
name
]
0/16 ilmi
Example:
Router(config-if)# pvc cisco 0/16 ilmi
Configures ILMI PVC on an ATM main interface.
Router(config-if-atm-vc)#
exit
Returns to interface configuration mode.
Router(config-if)
atm
e
si-address
esi.selector
Example:
Router(config-if)# atm esi-address 345678901234.12
Enters the ESI and selector fields of the NSAP address.