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Configuring PIM-SM 141
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 Interface Hello Message Interval
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 VLAN interface view.
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 VLAN interface view.
Configuring the Filtering of Multicast Source/Group
See “Configuring PIM-DM” on page 130.
Configuring the Filtering of PIM Neighbor
See “Configuring PIM-DM” on page 130.
Configuring the Maximum Number of PIM Neighbor on an Interface
See “Configuring PIM-DM” on page 130.
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.
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.
Table 151 Configuring the Interface Hello Message Interval
Operation Command
Configure the interface hello message interval pim timer hello seconds
Restore the interval to the default value undo pim timer hello
Table 152 Configuring RP to Filter the Register Messages Sent by DR
Operation Command
Configure RP to filter the register messages
sent by DR
register-policy acl-number
Cancel the configured filter of messages undo register-policy