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JunosE 11.3.x Multicast Routing Configuration Guide
Enabling PIM on an Interface
ip pim
ip pim query-interval
ip pim sparse-mode graceful-restart-duration
Setting a Priority to Determine the Designated Router
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You can enable PIM on an interface in one of the PIM modes (dense, sparse, or
sparse-dense) and specify how often the interface sends hello messages to neighbors.
You can configure PIM and IGMP on the same interface. If you configure IGMP and PIM
on an interface, the router determines that PIM owns the interface.
NOTE: You cannot configure DVMRP and PIM on the same interface.
Use to enable PIM on an interface; dense mode is the default.
Example
host1(config-if)#ip pim sparse-dense-mode
Use the no version to disable PIM on an interface.
See ip pim.
Use to specify the interval, in seconds, at which the router sends hello messages to
neighbors.
Example
host1(config-if)#ip pim query-interval 100
Use the no version to restore the default setting, 30 seconds.
See ip pim query-interval.
Use to set the graceful restart duration for IP PIM sparse mode.
Example
host1(config-if)#ip pim sparse-mode graceful-restart-duration 10
Use the no version to return to the default duration of 30 seconds.
See ip pim sparse-mode graceful-restart-duration.
You can influence whether a particular router is selected as the designated router with
the ip pim dr-priority command. A higher priority value increases the likelihood that a
router is selected as the designated router, while a lower value decreases the likelihood.
The ip pim dr-priority command in Router Configuration mode sets the designated router
priority on all the PIM interfaces on the router. To override this global setting on a particular
interface, use the ip pim dr-priority command in Interface Configuration mode.
Copyright © 2010, Juniper Networks, Inc.
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