UMN:CLI
User Manual
V5824G
384
To enable the router to filter multicast sources, use the following command.
Command
Mode
Description
ip pim accept-register list
{<100-
199> | <2000-2699> |
WORD
}
Global
Enables the router to filter multicast sources.
100-199: IP extended access list
2000-2699: IP extended access list (extended range)
WORD: access list name
no ip pim accept-register
Disables the router to filter multicast sources.
RP Reachability Validation
To enable the RP reachability validation for the source registration process at the first-hop
router, use the following command.
Command
Mode
Description
ip pim register-rp-reachability
Global
Enables the RP reachability validation.
no ip pim register-rp-reach-
ability
Disables the RP reachability validation. (default)
Source Address of Register Message
You can specify the source IP address of PIM register messages sent by the DR. This
address is used to send corresponding PIM register-stop messages in response. By
default, the source address of register messages is the IP address of the interface toward
the RP. This address must be able to be learned by unicast routing protocols on the DR.
To specify the source IP address of PIM register messages, use the following command.
Command
Mode
Description
ip pim register-source
{
A.B.C.D
|
INTERFACE
}
Global
Specifies the source IP address of register messages.
A.B.C.D: source IP address
INTERFACE: interface name
no ip pim register-source
Deletes a specified source IP address of register
messages.
9.3.3.4
SPT Switchover
PIM-SM provides the switching option to deliver multicast traffic on the SPT. Multicasting
over the SPT may be more efficient than multicasting over the RPT, since it can
substantially reduce the network latency.
When the switching option is enabled, once multicast traffic from sources arrives at the
DR, the switchover to the SPT then occurs. This option only provides the binary option,
meaning that the switching to the SPT occurs either when receiving the first multicast
packet, or not at all; it is not rate-based. You can enable this option only for specified
multicast groups using access lists.
