Purpose
Command or Action
•
vpi
—
Specifies the VPI ID. The valid range is 0 to 255.
•
vci
—
Specifies the VCI ID. The valid range is 32 to 65535. Values 1 to 31 are
reserved and should not be used, except for 5 for the QSAAL PVC and 16 for the
ILMI PVC. ILMI is unsupported on the Cisco ASR 1000 Series Aggregation
Services Routers.
When using the
pvc
command, remember that the
vpi
/
vci
combination forms
a unique identifier for the interface and all of its subinterfaces. If you specify
a
vpi
/
vci
combination that has been used on another subinterface, the Cisco
IOS XE software assumes that you want to modify that PVC
’
s configuration
and automatically switches to its parent subinterface.
Note
Configures the PVC for a particular protocol and maps it to a specific
protocol-address
.
Router(config-if-atm-vc)#
protocol protocol
Step 5
{
protocol-address
|
inarp
}
broadcast
•
protocol
—
Typically set to
ip
or
pppoe
, but other values are possible.
PPP is not supported on the Cisco ASR 1000 Series Aggregation Services
Routers, and PPPoE is supported beginning in Cisco IOS XE Release 2.5.
Note
•
protocol-address
—
Destination address or virtual template interface for this PVC
(if appropriate for the
protocol
).
•
inarp
—
Specifies that the PVC uses Inverse ARP to determine its address.
•
broadcast
—
Specifies that this mapping should be used for multicast packets.
(Optional) If using Inverse ARP, configures how often the PVC transmits Inverse ARP
requests to confirm its address mapping. The valid range is 1 to 60 minutes, with a
default of 15 minutes.
Router(config-if-atm-vc)#
inarp
minutes
Step 6
(Optional) Configures the ATM adaptation layer (AAL) and encapsulation type, where:
Router(config-if-atm-vc)#
encapsulation
{
aal5mux
protocol
|
aal5nlpid
|
aal5snap
}
Step 7
•
aal5mux protocol
—
AAL and encapsulation type for multiplex (MUX)-type
VCs. A protocol must be specified when you use this encapsulation type.
•
aal5nlpid
—
(IP only) AAL and encapsulation type that allows ATM interfaces
to interoperate with High-Speed Serial Interfaces (HSSIs) that are using an ATM
data service unit (ADSU) and running ATM-Data Exchange Interface (DXI).
Supported on ATM PVCs only.
•
aal5snap
—
AAL and encapsulation type that supports Inverse Address Resolution
Protocol (ARP). Logical link control/Subnetwork Access Protocol (LLC/SNAP)
precedes the protocol datagram. This is the default.
Exits interface configuration mode and returns to privileged EXEC mode.
Router(config-if-atm-vc)#
end
Step 8
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
72
OL-14127-17
Configuring the ATM SPAs
Configuring a PVC on a Multipoint Subinterface