H3C Technologies H3C S7500E Series Switches - Manual (Page 378)

13-27
To do... Use the command... Remarks
Configure the device to
calculate the checksum based
on the entire register messages
register-whole-checksum
Optional
Based on the header of register
messages by default
Configure the register
suppression time
register-suppression-timeout
interval
Optional
60 seconds by default
Configure the register probe
time
probe-interval interval
Optional
5 seconds by default
Configuring SPT Switchover
If an S7500E series routing switch acts as an RP or the receiver-side DR, it initiates an STP
switchover process (by default) upon receiving the first IPv6 multicast packet along the RPT.
You can disable the switchover from RPT to SPT.
Follow these steps to disable SPT switchover:
To do... Use the command... Remarks
Enter system view system-view —
Enter IPv6 PIM view pim ipv6 —
Disable the SPT switchover
spt-switch-threshold infinity
[ group-policy acl6-number
[ order order-value ] ]
Optional
By default, the device switches
to the SPT immediately after it
receives the first IPv6 multicast
packet from the RPT.
For an S7500E series Ethernet switch, once an IPv6 multicast forwarding entry is created,
subsequent IPv6 multicast data will not be encapsulated in register messages before being
forwarded even if a register outgoing interface is available. Therefore, to avoid forwarding
failure, do not use spt-switch-threshold infinity command on a switch that may become an
RP (namely, a static RP or a C-RP).
Configuring IPv6 PIM-SSM