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1101

Command History

This guide is platform-specic. For command information about other platforms, refer to the relevant Dell

Networking OS Command Line Reference Guide.

The following is a list of the Dell Networking OS version history for this command.

Version Description

9.8(0.0) Introduced on the S3048-ON and S4048-ON.

9.7(0.0) Introduced on the S6000-ON.

9.5(0.1) Introduced on the Z9500.

8.3.19.0 Introduced on the S4820T.

8.3.12.0 Introduced on the S4810.

8.4.1.0 Introduced on the E-Series ExaScale.

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.

show ip pim bsr-router

View information on the Bootstrap router.

S3048–ON

Syntax

show ip pim [vrf vrf-name] bsr-router

Command Modes

• EXEC

• EXEC Privilege