Filtering The Registration Packets From Dr To Rp; Disabling Rpt-To-Spt Switchover - H3C S5600 Series Operation Manual

After this feature is configured, Bootstrap messages cannot pass the border. However, the other PIM
messages can pass the domain border. The network can be effectively divided into domains that use
different BSRs.

Filtering the Registration Packets from DR to RP

Within a PIM-SM domain, the source-side DR sends register messages to the RP, and these register
messages have different multicast source or group addresses. You can configure a filtering rule to filter
register messages so that the RP can serve specific multicast groups. If an (S, G) entry is denied by the
filtering rule, or the action for this entry is not defined in the filtering rule, the RP will send a register-stop
message to the DR to stop the registration process for the multicast data.
Follow these steps to filter the registration packets from RP to DR:
To do...
Enter system view
Enter PIM view
Configure to filter the
registration packets from RP to
DR
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.

Disabling RPT-to-SPT Switchover

Initially, a PIM-SM-enabled multicast device forwards multicast packets through an RPT. By default, the
last-hop switch initiates an RPT-to-SPT switchover process. You can also disable RPT-to-SPT
switchover through the configuration.
Follow these steps to disable RPT-to-SPT switchover:
To do...
Enter system view
Enter PIM view
Disable RPT-to-SPT
switchover
Use the command...
system-view
pim
register-policy acl-number
Use the command...
system-view
pim
spt-switch-threshold infinity
[ group-policy acl-number [ order
order-value ] ]
4-14
Remarks
—
—
Required
By default, the switch does not filter the
registration packets from DR.
Remarks
—
—
Optional
By default, the device switches to the SPT
immediately after it receives the first
multicast packet from the RPT.