Information Technology Reference
In-Depth Information
DDR Configuration of Physical Interfaces
Virtual Profiles fully interoperates with physical interfaces in the following DDR configuration states
when no other virtual access interface application is configured:
Dialer profiles are configured for the interface —The dialer profile is used instead of the Virtual
Profiles configuration.
DDR is not configured on the interface —Virtual Profiles overrides the current configuration.
Legacy DDR is configured on the interface —Virtual Profiles overrides the current configuration.
If a dialer interface is used (including any ISDN dialer), its configuration is used on the
physical interface instead of the Virtual Profiles configuration.
Note
Multilink PPP Effect on Virtual Access Interface Configuration
As shown in Table 16-9, exactly how a virtual access interface will be configured depends three factors:
Whether Virtual Profiles is configured by Virtual Template, by AAA, by both, or by neither. These
states are shown as “VP VT only,” “VP AAA only,” “VP VT and VP AAA,” and “No VP at all,”
respectively, in Table 16-9.
The presence or absence of a dialer interface.
The presence or absence of MLP. The column label “MLP” is a stand-in for any virtual access
feature that supports MLP and clones from a virtual template interface.
In Table 16-9, “(Multilink VT)” means that a virtual template interface is cloned if one is defined for
MLP or a virtual access feature that uses MLP.
Table16-9 Virtual Profiles Configuration Cloning Sequence
Virtual Profiles
Configuration
MLP No Dialer
MLP Dialer
No MLP No Dialer
No MLP Dialer
VP VT only
VP VT
VP VT
VP VT
VP VT
VP AAA only
(Multilink VT)
VP AAA
(Multilink
VT)
VP AAA
VP AAA
VP AAA
VP VT and VP
AAA
VP VT
VP AAA
VP VT
VP AAA
VP VT
VP AAA
VP VT
VP AAA
Dialer 2
No VP at all
(Multilink
VT) 1
No virtual access
interface is
created.
No virtual
access
interface is
created.
1.
The Multilink bundle virtual access interface is created and uses the default settings for MLP or the
relevant virtual access feature that uses MLP.
2.
The Multilink bundle virtual access interface is created and cloned from the dialer interface
configuration.
The order of items in any cell of the table is important. Where VP VT is shown above VP AAA, it means
that first the Virtual Profiles virtual template is cloned on the interface, and then the AAA interface
configuration for the user is applied to it. The user-specific AAA interface configuration adds to the
configuration and overrides any conflicting physical interface or virtual template configuration
commands.
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