Users Guide

Table Of Contents
Version Description
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON. Added support for VRF on S6000, S4810, S4820T,
Z9000, Z9500, and S6000ON.
9.7(0.0) Added support for VRF.
9.5(0.1) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.1 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series.
7.8.1.0 Introduced on the S-Series.
7.7.1.0 Introduced on the C-Series.
7.5.1.0 Introduced on the E-Series.
Usage
Information
Dell EMC Networking OS supports standard access lists for the SSM range. You cannot use extended
ACLs for configuring the SSM range. If you configure an extended ACL and 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 EMC 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 EMC 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.
PIM-Sparse Mode (PIM-SM) 1235