
xStack
®
DGS-3600 Series Layer 3 Gigabit Ethernet Managed Switch
interface list if RP is not found. In other words, the PIM Sparse-Dense mode is treated in either the sparse mode or dense mode of
the operation; it depends on which mode the multicast group operates. When an interface receives multicast traffic, if there is a
known RP for the group, then the current operation mode on the interface is sparse mode, otherwise the current operation mode on
the interface will be dense mode.
PIM Global Settings
This window is used to enable PIM globally on the Switch.
To view this window, click
L3 Features > IP Multicast Routing Protocol > PIM > PIM Global Settings
, as shown below.
Figure 8- 85. PIM Global Settings window
Use the pull-down menu, choose
Enabled
, and click
Apply
to set the PIM function on the Switch.
PIM Parameter Settings
The following window will configure the parameter settings for the PIM distribution tree.
To view this window, click
L3 Features > IP Multicast Routing Protocol > PIM > PIM Parameter Settings
, as shown below.
Figure 8- 86. PIM Parameter Settings window
The following fields can be viewed or set:
Parameter
Description
Last Hop SPT
Switchover
This field is used by the last hop router to decide whether to receive multicast data from the
shared tree or switch over to the shortest path tree. When the switchover mode is set to
never, the last hope router will always receive multicast data from the shared tree. When the
mode is set to immediately, the last hop router will always receive data from the shortest path
tree.
Register Probe
Time (1-127)
This command is used to set a time to send a probe message from the DR to the RP before
the Register Suppression time expires. If a Register Stop message is received by the DR, the
Register Suppression Time will be restarted. If no Register Stop message is received within
the probe time, Register Packets will be resent to the RP. The user may configure a time
between
1
and
127
seconds with a default setting of
5
seconds.
Register
Suppression Time
(3-255)
This field is to be configured for the first hop router from the source. After this router sends
out a Register message to the RP, and the RP replies with a Register stop message, it will
wait for the time configured here to send out another register message to the RP. The user
may set a time between
3
and
255
with a default setting of
60
seconds.
Click
Apply
to implement changes made.
229