Users Guide

then used in the ip pim ssm-range {access list name} configuration, an error
is reported.
However, if you configure ip pim ssm-range {access list name} first and then
you configure the ACL as an Extended ACL, an error is not reported and the ACL is not
applied to the SSM range.
Dell Networking OS-recommended best-practices are to configure the standard ACL,
and then apply the ACL to the SSM range. After the SSM range is applied, the changes
are applied internally without requiring clearing of the tree information base (TIB).
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
PIM-Sparse Mode (PIM-SM) 1524