Configuring an rp, Configuring a static rp, Configuring a c-rp – H3C Technologies H3C S12500 Series Switches User Manual
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Step
Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable IPv6 multicast routing. multicast ipv6 routing-enable
Disable by default.
3.
Enter interface view.
interface interface-type
interface-number
N/A
4.
Enable IPv6 PIM-SM.
pim ipv6 sm
Disabled by default.
IMPORTANT:
All the interfaces of the same device must operate in the same IPv6 PIM mode.
Configuring an RP
An RP can be manually configured or dynamically elected through the BSR mechanism. For a large IPv6
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.
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.
IMPORTANT:
To enable a static RP to operate correctly, you must perform this configuration on all routers in the IPv6
PIM-SM domain and specify the same RP address.
Perform the following configuration on all the routers in the IPv6 PIM-SM domain.
To configure a static RP:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter IPv6 PIM view.
pim ipv6
N/A
3.
Configure a static RP for IPv6
PIM-SM.
static-rp ipv6-rp-address
[ acl6-number ] [ preferred ]
No static RP by default.
Configuring a C-RP
In an IPv6 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 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 IPv6
multicast groups to which the C-RP is designated on the BSR. In addition, because every C-BSR has a