Configuring An Rp - H3C S5600 Series Operation Manual

Operation Manual – Multicast
H3C S5600 Series Ethernet Switches

4.3.2 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 operation manageability of a multicast network.
I. Configuring a static RP
If there is only one dynamic RP 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. 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.
Follow these steps to configure a static RP:
Enter system view
Enter PIM view
Configure a static RP
II. 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. We recommend that you configure C-RPs on
backbone routers.
To guard against C-RP spoofing, you need to 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 has a chance to become the BSR, you need to configure the same filtering
policy on all C-BSRs in the PIM-SM domain.
Follow these steps to configure a C-RP:
To do...
Enter system
view
Enter PIM view
To do...
system-view
pim
static-rp rp-address
[ acl-number ]
Use the command...
system-view
pim
Use the command...
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4-13
Chapter 4 PIM Configuration
Remarks
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Optional
No static RP by default
Remarks