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.

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

 

 

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.

Table 152 Configuring RP to Filter the Register Messages Sent by DR

Operation

Command

 

 

Configure RP to filter the register messages

register-policy acl-number

sent by DR

 

Cancel the configured filter of messages

undo register-policy

 

 

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.

Page 141
Image 141
3Com 10014298 manual See Configuring PIM-DMon, Configuring the Filtering of PIM Neighbor