3Com MSR 50 Series, Руководство по настройке

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166 C
HAPTER
6: DCC C
ONFIGURATION
Configuring RS-DCC In RS-DCC approach, physical interface configuration is separated from logical
configuration for calls and they can be combined dynamically for each call.
When configuring RS-DCC for on-demand dial, you need to configure RS-DCC
sets. Each RS-DCC set is an attribute collection containing a dialer interface, dialer
interface attributes, and a dialer bundle as follows:
■
For each dialer interface, you can define only one dial string. As this dial string
has its own dial attribute set, all calls placed using this dial string use the same
DCC attribute parameters (such as dial rate).
■
Each dialer interface can use only one dialer bundle. Each dialer bundle may
contain multiple physical interfaces with different priorities while each of these
interfaces can belong to multiple dialer bundles. For an ISDN BRI or PRI
interface, you can set the number of B channels to be used by configuring the
dialer bundle command.
■
All calls destined to the same network segment use the same RS-DCC set.
Due to the separation between physical configuration and logical configuration,
RS-DCC can accommodate more network topologies and DCC dial demands. For
example, it allows multiple interface groups to call multiple remote ends.
Figure 21 Multiple interfaces call multiple remote ends in RS-DCC approach
In this scenario, a dialer interface is configured only for calling one remote end.
On-demand dial in this case is implemented by assigning a physical interface to
dialer bundles associated with different dialer interfaces.
Assign the physical interface
to the dialer circular group
corresponding to the dialer
interface dialer circular-group
number
Required
The number argument in this
command must take the same
value assigned to the
number
argument in the interface
dialer number command.
Assign a priority to the
physical interface in the dialer
circular group dialer priority priority Optional
The default priority is 1.
To do... Use the command... Remarks
Local end
(Multiple
interfaces)
Remote end A
(Single/Multiple
interfaces)
Remote end B
(Single/Multiple
interfaces)
Remote end C
(Single/Multiple
interfaces)
if1
if2
if3
Physical interface
groups
Call remote
end A
Call remote
end C
Call remote
end B
Dialer0
Dialer1
Dialer2