Product guide

PIM-SM (Sparse Mode)
Configuration Steps for PIM-SM
Router PIM Configuration
These steps configure PIM-SM in the Router PIM context (ProCurve(pim)#_).
1. Specify the VLAN interface to advertise as the BSR candidate and enable
the router to advertise itself as a candidate BSR in a PIM-SM domain. (Use
bsr-candidate source-ip-vlan < vid >.)
2. Optional: To make BSR candidate selection occur quickly and predictably,
set a different priority on each BSR candidate in the domain. (Use bsr-
candidate priority — page 4-36.)
3. Do one of the following to configure RP operation:
• Recommended: Enable C-RP operation and configure the router to
advertise itself as a candidate RP to the BSR for the current domain.
This step includes the option to allow the C-RP to be a candidate for
either all possible multicast groups or for up to four multicast groups
and/or ranges of groups. (Use rp-candidate source-ip-vlan < vid > [
group-addr/group-mask ].)
• Alternative or Additional Option: Use rp-address < ip-addr > [ group-
addr/group-mask ] to statically configure the router as the RP for a
specified multicast group or range of multicast groups. (This must be
configured on all PIM-SM routers in the domain.)
4. Optional: In the PIM router context, change one or more of the traffic
control settings in the following table.
Options Accessed in
Router PIM Context
Operation
rp-candidate group-prefix Enter an address and mask to define an additional
< group-addr/group-mask > multicast group or a range of groups.
rp-candidate hold-time Tells the BSR how long it should expect the sending
< 3 - 255 > Candidate-RP router to be operative. (Default: 150; 0 if
router is not a candidate)
rp-candidate priority < 0 - 255 > Changes the priority for the Candidate-RP router. When
multiple C-RPs are configured for the same multicast
group(s), the priority determines which router
becomes the RP for such groups. A smaller value
means a higher priority. (Default: 192)
[no] spt-threshold Disable or enable the router’s ability to switch multicast
(page 4-42) traffic flows to the shortest path tree. (Default:
enabled)
4-23