VPRN Service Configuration Commands
Page 1062 7750 SR OS Services Guide
spt-threshold — Specifies the configured threshold in kilo-bits per second(kbps) for the group to 
which this (S,G) belongs. For a group G configured with a threshold, switchover to SPT for an 
(S,G) is attempted only if the (S,G)'s rate exceeds this configured threshold.
ssm-groups 
Syntax [no] ssm-groups
Context config>service>vprn
Description This command enables access to the context to enable a source-specific multicast (SSM) 
configuration instance. 
Default none