Operation Manual – Multicast
H3C S3600 Series Ethernet Switches-Release 1510 Chapter 7 PIM Configuration
7-18
Operation Command Description
Configure to filter the
registration packets from
RP to DR
register-policy
acl-number
Required
z You can configure to
filter the IP addresses
of some multicast
groups in ACL.
z By default, the switch
does not filter the
registration packets
from DR.
Caution:
z If a source group entry (S, G) is denied in ACL, or no operation on the entry is
defined in the ACL, or ACLs are not defined, RP will send RegisterStop messages
to DR to stop the registration process of the multicast data flow.
z Only the registration packets matching the permit command of ACLs can be
accepted. When an invalid ACL is defined, RP will reject all the registration packets.
7.4.5 Configuring the Threshold for Switching from RPT to SPT
PIM-SM routers initially use the RPT to forward multicast packets. If the threshold is
specified as 0, the last hop switch that the packets pass initiates the switching from the
RPT to the SPT.
Table 7-11 Configure the threshold for switching from RPT to SPT
Operation Command Description
Enter system view
system-view
—
Enter PIM view
pim
—
Configure the threshold
for switching from RPT
to SPT
spt-switch-threshold
{ traffic-rate | infinity }
[ group-policy
acl-number ]
Required
By default, a RPT-to-SPT
switch occurs once the
device receives the first
multicast packet from the
RPT.
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