H3C Technologies H3C SecPath F1000-E - Manual (Page 591)

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Configuring multicast routing and forwarding
Configuration prerequisites
Before you configure multicast routing and forwarding, complete the following tasks:
• Configure a unicast routing protocol so that all devices in the domain are interoperable at the
network layer.
• Enable PIM (PIM-DM or PIM-SM).
• Determine the maximum number of downstream nodes for a single multicast forwarding table entry.
• Determine the maximum number of entries in the multicast forwarding table.
Configuring static multicast routes
By configuring a static multicast route for a given multicast source, you can specify an RPF interface or an
RPF neighbor for multicast traffic from that source. If you want to remove a specific static multicast route,
use the undo ip rpf-route-static command, if you want to remove all static multicast routes, use the delete
ip rpf-route-static command.
To configure a static multicast route:
Step Command Remarks
1. Enter system view. system-view N/A
2. Configure a static multicast
route.
ip rpf-route-static source-address { mask |
mask-length } [ protocol [ process-id ] ]
[ route-policy policy-name ]
{ rpf-nbr-address | interface-type
interface-number } [ preference preference ]
[ order order-number ]
No static multicast route
configured by default
3. Delete static multicast routes. delete ip rpf-route-static Optional
CAUTION:
When you configure a static multicast route, you cannot specify an RPF neighbor by providing the type
and number (
interface-type interface-number) of the interface if the interface of the RPF neighbor is a
Layer 3 Ethernet interface, Layer 3 aggregate interface, Loopback interface, Layer 3 RPR logical interface,
or VLAN interface. Instead, you can specify such an RPF neighbor only by its address ( rpf-nbr-address).
Configuring a multicast routing policy
You can configure the router to determine the RPF route based on the longest match principle. For more
information about RPF route selection, see Appendix Protocol References.
By configuring per-source or per-source-and-group load splitting, you can optimize the traffic delivery
when multiple data flows are handled.
To configure a multicast routing policy for the public network:
Step Command Remarks
1. Enter system view. system-view N/A
2. Configure the device to select the
RPF route based on the longest
match.
multicast longest-match
The route with the highest
priority is selected as the
RPF route by default.