H3C Technologies H3C S10500 Series Switches - Manual (Page 175)

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To do... Use the command... Remarks
Enter public network PIM view or
VPN instance PIM view pim [ vpn-instance
vpn-instance-name ]
—
Enable BIDIR-PIM bidir-pim enable
Required
Disabled by default
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 used as a
backup means for the dynamic RP election mechanism to enhance the robustness and operation
manageability of a multicast network.
CAUTION:
In a PIM network, if both PIM-SM and BIDIR-PIM are enabled, do not configure the same RP to serve
PIM-SM and BIDIR-PIM simultaneously to avoid PIM routing table errors.
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 routers in the BIDIR-PIM domain.
Follow these steps to configure a static RP:
To do… Use the command… Remarks
Enter system view system-view —
Enter public network PIM view or
VPN instance PIM view pim [ vpn-instance
vpn-instance-name ]
—
Configure a static RP for BIDIR-PIM
static-rp rp-address [ acl-number ]
[ preferred ] bidir Required
No static RP by default
CAUTION:
You must perform static RP configuration on all routers in the PIM-SM domain and specify the same RP
address.
NOTE:
In BIDIR-PIM, a static RP can be specified with a virtual IP address. For example, if the IP addresses of the
interfaces at the two ends of a link are 10.1.1.1/24 and 10.1.1.2/24, you can specify a virtual IP
address, like 10.1.1.100/24, for the static RP. As a result, the link becomes an RPL.
Configuring a C-RP
In a BIDIR-PIM 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.