Disabling Rpt-To-Spt Switchover - H3C S7500E Series Operation Manual

Operation Manual – Multicast
H3C S7500E Series Ethernet Switches
Configure a filtering rule
for register messages
Configure the device to
calculate the checksum
based on the entire
register messages
Configure the register
suppression timeout time
Configure the probe time
Note:
Typically, you need to configure the above-mentioned parameters on the receiver-side
DR and the RP only. Since both the DR and RP are elected, however, you should carry
out these configurations on the routers that may win the DR election and on the C-RPs
that may win RP elections.

5.3.7 Disabling RPT-to-SPT Switchover

Initially, multicast traffic flows along an RPT to the receivers. By default, the last-hop
switch initiates an RPT-to-SPT switchover process when it receives the first multicast
packet from the RPT. You can disable RPT-to-SPT switchover through the following
configuration.
Follow these steps to disable RPT-to-SPT switchover:
Enter system view
Enter PIM view
Disable RPT-to-SPT
switchover
To do...
register-policy
acl-number
register-header-checks
um
register-suppression-ti
meout interval
probe-interval interval
To do...
system-view
pim
spt-switch-threshold infinity
[ group-policy acl-number [ order
order-value] ]
Use the command...
Use the command...
5-29
Chapter 5 PIM Configuration
Remarks
Optional
No register filtering rule by
default
Optional
By default, the checksum
is calculated based on the
header of register
messages
Optional
60 seconds by default
Optional
5 seconds by default
Remarks
—
—
Optional