Users Guide

no ip pim snooping dr-ood
Disable the ooding of multicast packets to the PIM designated router.
Syntax
no ip pim snooping dr-flood
To re-enable the ooding of multicast packets to the PIM designated router, use the ip pim snooping dr-
flood command.
Defaults Enabled.
Command Modes CONFIGURATION
Supported Modes Full—Switch
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
Usage Information
By default, when you enable PIM-SM snooping, a switch oods all multicast trac to the PIM designated router
(DR), including unnecessary multicast packets. To minimize the trac sent over the network to the designated
router, you can disable designated-router flooding.
When designated-router ooding is disabled, PIM-SM snooping only forwards the multicast trac, which belongs
to a multicast group for which the switch receives a join request, on the port connected towards the designated
router.
If the PIM DR ood is not disabled (default setting):
• Multicast trac is transmitted on the egress port towards the PIM DR if the port is not the incoming interface.
• Multicast trac for an unknown group is sent on the port towards the PIM DR. When DR ooding is disabled,
multicast trac for an unknown group is dropped.
Related Commands ip pim sparse-mode — enables PIM-SM snooping.
show ip pim bsr-router
View information on the Bootstrap router.
Syntax
show ip pim bsr-router
Command Modes
• EXEC
• EXEC Privilege
Supported Modes Full—Swtich
Command History
Version Description
9.9(0.0) Introduced on the FN IOM.
9.2(0.0) Introduced on the MXL 10/40GbE Switch IO Module.
PIM-Sparse Mode (PIM-SM) 1015