H3C Technologies H3C S12500 Series Switches - Manual (Page 157)

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Step Command Remarks
4. Enable IP multicast routing. multicast routing-enable Disabled by default.
5. Enter interface view.
interface interface-type
interface-number
N/A
6. Bind the interface with the
VPN instance. ip binding vpn-instance
vpn-instance-name
By default, an interface belongs to
the public network, and is not
bound with any VPN instance.
7. Enable PIM-SM. pim sm Disabled by default.
For more information about the ip vpn-instance, route-distinguisher, and ip binding vpn-instance
commands, see MPLS Command Reference.
Enabling BIDIR-PIM
When you enable BIDIR-PIM, follow these guidelines:
• When the switch is operating in standard mode, it does not support BIDIR-PIM. For more
information about system operating modes, see Fundamentals Configuration Guide.
• If BIDIR-PIM is enabled on the public network or in a VPN, the tunnel interfaces on the public
network or in the VPN do not support Layer 3 multicasting.
• In IRF mode, VLAN-interface 4094, Layer 3 Ethernet sub-interfaces and Layer 3 aggregate
sub-interfaces which are numbered 4094, for example, GE2/0/1.4094 and Route-Aggregation
1.4094, do not support Layer 3 multicasting.
To enable BIDIR-PIM on all routers in the BIDIR-PIM domain:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter public network PIM view
or VPN instance PIM view.
pim [ vpn-instance
vpn-instance-name ]
N/A
3. Enable BIDIR-PIM. bidir-pim enable Disabled by default.
Configuring an RP
CAUTION:
When both PIM-SM and BIDIR-PIM run on the PIM network, do not use the same RP for PIM-SM and
BIDIR-PIM. Otherwise, exceptions might occur to the PIM routing table.
Configuration guidelines
• 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 method for the dynamic RP election mechanism to enhance the robustness and
operation manageability of a multicast network.
• You must perform static RP configuration on all routers in the PIM-SM domain and specify the same
RP address.