Enabling Pim-Sm; Configuring An Rp - HP 6125XLG Configuration Manual

Enabling PIM-SM

Enable IP multicast routing before you configure PIM.
With PIM-SM enabled on interfaces, routers can establish PIM neighbor relationship and process PIM
messages from their PIM neighbors. When you deploy a PIM-SM domain, HP recommends that you
enable PIM-SM on all non-border interfaces.
IMPORTANT:
All the interfaces on the same router must operate in the same PIM mode.
To enable PIM-SM:
Step
1. Enter system view.
2. Enable IP multicast routing.
3. Enter interface view.
4. Enable PIM-SM.

Configuring an RP

An RP can provide services for multiple multicast groups. However, only one RP can forward multicast
traffic for a multicast group at a moment.
An RP can be manually configured or dynamically elected through the BSR mechanism. For a
large-scaled PIM network, configuring static RPs is a tedious job. Generally, static RPs are backups for
dynamic RPs to enhance the robustness and operational manageability on a multicast network.
Configuring a static RP
If only one dynamic RP exists on a network, you can configure a static RP to avoid communication
interruption caused by single-point failures. It can also avoid waste of bandwidth due to frequent
message exchange between C-RPs and the BSR. The static RP configuration must be the same on all
routers in the PIM-SM domain.
To configure a static RP:
Step
1. Enter system view.
2. Enter PIM view.
3. Configure a static RP for
PIM-SM.
Command
system-view
multicast routing-enable
interface interface-type
interface-number
pim sm
Command
system-view
pim
static-rp rp-address [ acl-number |
preferred ] *
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Remarks
N/A
By default, IP multicast routing is
disabled.
N/A
By default, PIM-SM is disabled.
Remarks
N/A
N/A
By default, no static RP is
configured.