3com 5500-ei pwr Installation Instruction

 

14 

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.  

 

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: 

Enter system view 

— 

Enter PIM view 

— 

Configure to filter the 
registration packets from 
RP to DR 

register-policy acl-number 

Required 

By default, the switch does not filter 
the registration packets from 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.  

 

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... 

Use the command... 

Remarks 

Enter system view 

— 

Enter PIM view 

pim 

— 

Disable RPT-to-SPT 
switchover  

spt-switch-threshold infinity 
[ group-policy acl-number 
[ order order-value ] ] 

Optional 

By default, the device switches 
to the SPT immediately after it 
receives the first multicast 
packet from the RPT.