DELL 9.8(0.0) User Manual

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Version
Description
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 ExaScale.
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 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 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.
S4820T
Syntax
ip pim [vrf vrf-name] spt-threshold [infinity]
To return to the default value, use the no ip pim [vrf vrf-name] spt-
threshold [infinity] command.
PIM-Sparse Mode (PIM-SM)
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