3Com 10014299 manual Resource-Shared DCC

DCC Overview 707

associate with multiple destination addresses. Each dialer interface can contain multiple physical interfaces. In addition, a physical interface does not necessarily belong to any dialer interface, and can directly route to one or multiple destination addresses.

As shown in Figure 224, physical interfaces Serial1, Bri0 and Serial2 belong to Dialer2, and on Dialer2 there are the maps of the string dialed and destination addresses.

Resource-Shared DCC

Compared to circular DCC, resource-shared DCC is simpler, and is more flexible due to the separation of logical and physical configurations. Specifically, resource-shared DCC has the following features:

■Separate the configuration of physical interfaces from the logical configuration required for calls and then dynamically binds them. Thus, a physical interface can provide services for various dial applications.

■A dialer interface only associates with a dialing destination address, which is specified in the dialer number command.

■Each logical dial (dialer) interface can use the services provided by multiple physical interfaces, and each physical interface can serve multiple dialer interfaces at the same time.

■Dial attributes are described based on RS-attributes set in implementing resource-shared DCC. All the calls originated to the same destination network use the same RS-attribute set (including the parameters like dialer interface, dialer bundle, physical interface).

■Resource-Shared DCC parameters cannot be directly configured on a physical interface. The physical interface can implement resource-shared DCC only after it is bound to a dialer interface.

■The figure below shows the association of the physical interfaces, dialer bundles and dialer interfaces in resource-shared DCC

Figure 225 Association of the physical interfaces, dialer bundles and dialer interfaces in Resource-Shared DCC

Physical

Dialer interfaces bundle3

	Serial0
	Bri0
Dialer	Bri1
bundle2
	Bri2

Serial1

Dialer

bundle1 Async0

Dialer

interfaces

Dialer1

Dialer2

Dialer3

dialer number

Destination A

dialer number

Destination B

dialer number

Destination C