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Figure 38 Association between physical interfaces and dialer interfaces
In Figure 38, a physical interface can be assigned to only one dialer interface, but each dialer
interface can contain multiple physical interfaces and be mapped to multiple destination
addresses. In addition, a physical interface does not necessarily belong to any dialer interface.
You can directly map it to one or multiple destination addresses.
In the figure, physical interfaces Serial 2/1, BRI 1/1, and Serial 2/2 are assigned to Dialer2,
where mappings between dial strings and destination addresses are configured.
RS-DCC
1. Features of RS-DCC.
RS-DCC is different from C-DCC and separates logical configuration from physical
configuration, so it is simpler and more flexible. RS-DCC delivers the following features:
{ Physical interface configuration and logical configuration for calls are separate. They are
associated dynamically when triggered by calls. This allows a physical interface to provide
services for different dial applications.
{ Associations between dialer interfaces and call destination addresses are one-to-one. You
can configure them with the dialer number command.
{ Each dialer interface can contain multiple physical interfaces, and each physical interface
can be assigned to multiple dialer interfaces.
{ Dial attributes, such as dialer interface, dialer bundle, and physical interface, are described
by an RS-DCC set. All the calls destined to the same network use the same RS-DCC set.
{ RS-DCC parameters cannot be directly configured on physical interfaces. A physical
interface can participate in RS-DCC only after it is assigned to a dialer interface.
2. Association of physical interfaces, dialer bundles, and dialer interfaces in RS-DCC.
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