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each upper-interface encapsulation type, or you can create a single profile that
includes attributes for multiple encapsulation types.
For example, the following commands create a base profile named
atm1483BaseProfile with two nested profile assignments. The first nested profile
assignment references an IP profile named atm1483ProfileIp, and the second nested
profile assignment references a PPP profile named atm1483ProfilePpp.
host1(config)#profile atm1483BaseProfile
host1(config-profile)#atm atm1483 profile ip atm1483ProfileIp
host1(config-profile)#atm atm1483 profile ppp atm1483ProfilePpp
In this example, atm1483ProfileIp and atm1483ProfilePpp have different IP
configurations depending on the dynamic interface column constructed. For an IP
over ATM (IPoA) dynamic interface column, the router uses the IP attributes in
atm1483ProfileIp. For an IP over PPP over ATM dynamic interface column, the router
uses the IP attributes in atm1483ProfilePpp.
The concepts that apply to profiles created for upper-interface encapsulation types
configured over static ATM 1483 subinterfaces also apply to profiles created for
upper-interface encapsulation configured over dynamic ATM 1483 subinterfaces.
For information about creating profiles for upper-interface encapsulation types, see
"Configuring Dynamic Interfaces" on page 515.
Additional Profile Characteristics for Upper Interfaces
In addition to ATM 1483 attributes and nested profile assignments, the base profile
for a dynamic ATM 1483 subinterface can also include individual characteristics for
several upper-interface encapsulation types, provided that no nested profile
assignment for the specified encapsulation type is in the base profile. If, on the other
hand, a nested profile assignment for this encapsulation type exists in the base
profile, the router obtains all characteristics for that encapsulation type from the
nested profile and not from the base profile.
For lists of the characteristics for each supported upper-interface encapsulation type,
see "Profile Characteristics" on page 564 in "Configuring Dynamic Interfaces" on
page 515.
Bulk Configuration of VC Ranges
When you create a static ATM 1483 subinterface, you must configure a permanent
virtual circuit (PVC), also known as a virtual circuit (VC). The ATM protocol requires
one or more VCs over which data traffic is transmitted to higher layers in the protocol
stack.
Similarly, dynamic creation of ATM 1483 subinterfaces requires you to configure a
range of ATM PVCs on the ATM AAL5 interface and assign a name to this range.
Each VC range consists of one or more nonoverlapping VC subranges. A VC subrange
is a group of VCs that resides within the virtual path identifier (VPI) and virtual circuit
identifier (VCI) ranges you specify.
The process of configuring a VC range for a dynamic ATM 1483 subinterface is
referred to as bulk configuration. You create a bulk configuration by issuing the atm
Chapter 18: Configuring Dynamic Interfaces Using Bulk Configuration
Configuring ATM 1483 Dynamic Subinterfaces
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