Specifications

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(2) The router with the unicast route of the smaller cost to the multicast source;
(3) The router with the local interface of the higher IP address.
11.3.1 PIM DM Interface
Choose the menu Multicast Routing→PIM DM→PIM DM Interface to load the following page.
Figure 11-13 PIM DM Interface
The following entries are displayed on this screen:

PIM DM Interface Config
The L3 interfaces can be configured as PIM DM mode by this page.
Select: Select the desired PIM DM interface entry to modify.
Interface:
The interface for which data is to be displayed or configured.
You must have configured at least one router interface before
configuring or displaying data for a PIM DM interface.
Status: Select enable or disable from the pull-
down list to set the
administrative status of PIM DM for the selected interface. The
default is disable.
Hello Interval:
Specify the rate (time in seconds) at which PIM hello
messages are transmitted from the selec
ted interface. The
valid value ranges from 1 to 18725 and the default is 30
seconds.
DR Priority:
Specify the DR priority for the selected interface. The valid
value range from 0 to 4294967294. The default value is 1.
IP Address: The IP address of this interface.
Neighbor Count: The neighbor numbers of this interface.
DR Address: The designated router on the selected PIM interface.
11.3.2 PIM DM Neighbor
PIM DM neighbor is automatically learned by sending and receiving Hello Packets when PIM DM
is enabled.