3Com SuperStack 4 Configuration Manual page 187

Basic ACL can control the range of multicast group served by static RP.
If static RP is in use, all routers in the PIM domain must adopt the same
configuration. If the configured static RP address is the interface address of the
local router whose state is UP, the router will function as the static RP. It is
unnecessary to enable PIM on the interface that functions as static RP.
When the RP elected from BSR mechanism is valid, static RP does not work.
Configuring the Sending Interval for the Hello Packets of the Interface
Generally, PIM-SM advertises Hello messages periodically on the interface enabled
with it to detect PIM neighbors and discover which router is the Designated Router
(DR).
Perform the following configuration in Interface view.
Table 217 Configuring the sending interval for the Hello packets of the interface
Operation
Configure the sending interval for the Hello
packets of the interface
Restore the interval to the default value
By default, the hello message interval is 30 seconds. Users can configure the value
according to different network environments.
This configuration can be performed only after the PIM (PIM-DM or PIM-SM) is
enabled in Interface view.
Configuring the Filtering of Multicast Source/Group
Refer to "PIM-DM Overview"
Configuring the Filtering of PIM Neighbor
Refer to "PIM-DM Overview"
Configuring the Maximum Number of PIM Neighbor on an Interface
Refer to "PIM-DM Overview"
Configuring RP to Filter the Register Messages Sent by DR
In the PIM-SM network, the register message filtering mechanism can control
which sources to send messages to which groups on the RP, i.e., RP can filter the
register messages sent by DR to accept specified messages only.
Perform the following configuration in PIM view.
Table 218 Configuring RP to filter the register messages sent by DR
Operation
Configure RP to filter the register messages sent by DR register-policy
Cancel the configured filter of messages
If an entry of a source group is denied by the ACL, or the ACL does not define
operation to it, or there is no ACL defined, the RP will send RegisterStop messages
to the DR to prevent the register process of the multicast data stream.
Command
pim timer hello
undo pim timer hello
on page 186.
on page 186.
on page 186.
Command
undo register-policy
PIM-SM Overview 199
seconds
acl_number