KB.15.15

[no] bsr-candidate bsm-interval [5-300]

Specifies the interval in seconds for sending periodic RP-Set messages on all PIM-SM

interfaces on a router operating as the elected BSR in a domain.

NOTE: This setting must be smaller than the rp-candidate hold-time settings

(range of 30 to 255; default 150) configured in the RPs operating in the domain.

(Default: 60; Range 5–300)

Configuring C-RPs on PIM-SM routers

An RP candidate advertises its availability, IP address, and the multicast group or range of groups

it supports. The commands in this section are used to configure C-RP operation. The sequence of

steps is as follows:

1. Specify the source IP VLAN.

2. Enable C-RP operation.

3. Option: enable or disable specific multicast address groups.

NOTE: Before configuring BSR, RP, and SNMP trap operation for PIM-SM, it is necessary to

enable PIM-SM on at least one VLAN on the router.

Specifying the source IP VLAN (optionally configuring multicast groups or range of

groups)

Specifying the source IP VLAN ID automatically configures the C-RP to support all multicast

groups (unless you include an individual group or range of groups in the command.) The

recommended approach is to allow all multicast groups unless you have a reason to limit the

permitted groups to a specific set.

Syntax:

[no] rp-candidate source-ip-vlan [vid] [group-prefix

group-addr/mask]

[no] router pim rp-candidate source-ip-vlan [vid] [group-prefix

group-addr/mask]

These commands configure C-RP operation in the following way:

• Specify the VLAN interface from which the RP IP address will be selected for advertising the

router as an RP candidate.

NOTE: Only one VLAN on the router can be configured for this purpose at any time.

• Enable the router as an RP candidate.

• Specify the multicast groups for which the router is a CRP. (Default: Disabled.)

NOTE: When executed without specifying a multicast group or range of groups, the resulting

RP candidate defaults to allow support for all multicast groups — 224.0.0.0, 240.0.0.0, or

224.0.0.0/4.

Configuring C-RPs on PIM-SM routers 73