H3C Technologies H3C S12500 Series Switches - Manual (Page 156)

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Configuration prerequisites
Before you configure BIDIR-PIM, complete the following tasks:
• Configure a unicast routing protocol so that all devices in the domain can reach each other.
• Determine the IP address of a static RP and the ACL that defines the range of the multicast groups
to which the static RP is designated.
• Determine the C-RP priority and the ACL that defines the range of multicast groups to which each
C-RP is designated.
• Determine the legal C-RP address range and the ACL that defines the range of multicast groups to
which the C-RP is designated.
• Determine the C-RP-Adv interval.
• Determine the C-RP timeout timer.
• Determine the C-BSR priority.
• Determine the hash mask length.
• Determine the ACL defining the legal BSR address range.
• Determine the BS period.
• Determine the BS timeout timer.
Enabling PIM-SM
Because BIDIR-PIM is implemented on the basis of PIM-SM, you must enable PIM-SM before enabling
BIDIR-PIM. To deploy a BIDIR-PIM domain, enable PIM-SM on all non-border interfaces of the domain.
IMPORTANT:
On a router, all interfaces in the same VPN instance must operate in the same PIM mode.
Enabling PIM-SM globally for the public network
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.
Enabling PIM-SM for a VPN instance
Step Command Remarks
1. Enter system view. system-view N/A
2. Create a VPN instance and
enter VPN instance view.
ip vpn-instance vpn-instance-name N/A
3. Configure an RD for the VPN
instance. route-distinguisher
route-distinguisher
Not configured by default.