H3C Technologies H3C SecPath F1000-E - Manual (Page 639)

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Step Command Remarks
1. Enter system view. system-view N/A
2. Enable IP multicast routing. multicast routing-enable Disable by default
3. Enter interface view.
interface interface-type
interface-number
N/A
4. Enable PIM-SM. pim sm Disabled by default
For more information about the multicast routing-enable command, see Network Management
Command Reference.
Configuring an RP
An RP can be manually configured or dynamically elected through the BSR mechanism. For a large PIM
network, static RP configuration is a tedious job. Generally, static RP configuration is just a backup means
for the dynamic RP election mechanism to enhance the robustness and operational manageability of a
multicast network.
1. Configuring a static RP
If only one dynamic RP exists in a network, manually configuring a static RP can avoid
communication interruption due to single-point failures and avoid frequent message exchange
between C-RPs and the BSR.
Perform this configuration on all the routers in the PIM-SM domain.
To configure a static RP:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter public network PIM view. pim N/A
3. Configure a static RP for PIM-SM.
static-rp rp-address [ acl-number ]
[ preferred ]
No static RP by default
CAUTION:
To enable a static RP to work normally, you must perform this configuration on all the routers in the
PIM-SM domain and specify the same RP address.
2. Configuring a C-RP
In a PIM-SM domain, you can configure routers that intend to become the RP as C-RPs. The BSR
collects the C-RP information by receiving the C-RP-Adv messages from C-RPs or auto-RP
announcements from other routers and organizes the information into an RP-set, which is flooded
throughout the entire network. Then, the other routers in the network calculate the mappings
between specific group ranges and the corresponding RPs based on the RP-set. H3C recommends
you to configure C-RPs on backbone routers.
To guard against C-RP spoofing, configure a legal C-RP address range and the range of multicast
groups to be served on the BSR. In addition, because every C-BSR can become the BSR, you must
configure the same filtering policy on all C-BSRs in the PIM-SM domain.
To configure a C-RP: