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Configuring ATM Interfaces
Step
Command
4
Router(config-if)# atm voice aesa {default |
esi-address}
5
Router(config-if)# pvc [name] vpi/vci ilmi
6
Router(config-if-atm-pvc)# pvc [name] vpi/vci qsaal
7
#Router(config-if-atm-pvc)# exit
8
Cisco IOS Release 12.0(7)T
Purpose
This command sets the unique ATM end-station address
(AESA) for an ATM interface that is using SVC mode for
voice.
The default keyword automatically creates an NSAP
address for the interface, based on a prefix from the ATM
switch (26 hexadecimal characters), the MAC address (12
hexadecimal characters) as the ESI (end station identifier),
and a selector byte (two hexadecimal characters).
The esi-address option requires that you enter 12
hexadecimal characters as the ESI. The ATM switch
provides the prefix and the voice selector byte provides
the remaining characters.
You can view the assigned address using the show atm
video-voice address command.
Create an ATM permanent virtual circuit (PVC) for ILMI
management purposes and enter PVC configuration
mode.
The optional name is a unique label that can be up to 16
characters long. name identifies to the processor the
virtual path identifier-virtual channel identifier (VPI-VCI)
pair to use for a particular packet.
The ATM network VPI of this PVC is an 8-bit field in the
header of the ATM cell. The vpi value is unique only on a
single link, not throughout the ATM network, because it
has local significance only. The vpi value must match that
of the switch. Valid values are from 0 to 255, but the value
is usually 0 for ILMI communications. If not specified,
the vpi value is set to 0.
You cannot set both vpi and vci to 0; if one is 0, the other
cannot be 0.
For ILMI communications this value is typically 16. The
VCI is a 16-bit field in the header of the ATM cell. The
VCI value is unique only on a single link—not throughout
the ATM network—because it has local significance only.
To set up communication with the ILMI, enter a value of
ilmi for ATM adaptation layer encapsulation; the
associated vpi and vci values are ordinarily 0 and 16,
respectively.
Typically, the low values 0 to 31 are reserved for
Note
specific traffic (for example, F4 OAM, SVC signaling,
ILMI, and so on) and you should not use them for other
PVCs.
See the explanations in Step 5 for the name, vpi, and vci
values.
To enable the signaling for setup and tear-down of SVCs,
specify the Q.SAAL (Signaling ATM Adaptation Layer)
encapsulation; the associated vpi and vci values are
ordinarily 0 and 5, respectively. You cannot create this
PVC on a subinterface.
Exit PVC interface configuration mode.
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