Users Guide

Table Of Contents
When the ACL rules change, the ACL and protocol-independent multicast (PIM) modules apply the new
rules automatically.
When you configure the SSM range, Dell Networking OS supports SSM for configured group range as
well as the default SSM range.
When you remove the SSM ACL, PIM SSM is supported for the default SSM range only.
ip pim spt-threshold
To switch to the shortest path tree when the traffic reaches the specified threshold value, configure the PIM router.
Syntax
ip pim [vrf vrf-name] spt-threshold [value | infinity]
To return to the default value, use the no ip pim [vrf vrf-name] spt-threshold
[infinity] command.
Parameters
value (OPTIONAL) Enter the traffic value in kilobits per second. The default is 10 packets
per second . A value of zero (0) causes a switchover on the first packet.
vrf
vrf-name
(OPTIONAL) Enter the keyword vrf followed by the name of the VRF to configure
the PIM router on that VRF.
NOTE: Applies to specific VRF if input is provided, else applies to Default VRF.
infinity (OPTIONAL) Enter the keyword infinity to never switch to the source-tree.
Defaults Not configured.
Command Modes CONFIGURATION
Command
History
This guide is platform-specific. For command information about other platforms, see the relevant Dell
Networking OS Command Line Reference Guide.
Version Description
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100-ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-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.
8.1.1.0 Introduced on the E-Series.
Usage
Information
This command is applicable to last hop routers on the shared tree towards the rendezvous point (RP).
no ip pim snooping dr-flood
Disable the flooding of multicast packets to the PIM designated router.
Syntax
no ip pim snooping dr-flood
To re-enable the flooding of multicast packets to the PIM designated router, use the ip pim
snooping dr-flood command.
Defaults Enabled.
PIM-Sparse Mode (PIM-SM) 1045