1104 CHAPTER 68: M ULTICAST R OUTING AND F ORWARDING CONFIGURATIONc CAUTION: When configuring a multicast static route, you cannot designate anRPF neighbor by specifying an interface (by means of the interface-typeinterface-number command argument combination) if the interface type of thatrouter is Ethernet, GigabitEthernet, Loopback or VLAN-interface; instead, you candesignate an RPF neighbor only by specifying an address (rpf-nbr-address).Configuring a MulticastRouting PolicyIf multiple unicast routes with the same cost exist to the same multicast source,you can configure the router to determine the RPF route based on the longestmatch (that is, by mask length).With the load splitting feature enabled, multicast traffic will be evenly distributedamong the equal-cost routes.Configuring a multicast routing policy in the public instanceFollow these steps to configure a multicast routing policy in the public instance:Configuring a multicast routing policy in a VPN instanceFollow these steps to configure a multicast routing policy in a VPN instance:Configuring MulticastForwarding RangeMulticast packets do not travel without a boundary in a network. The multicastdata corresponding to each multicast group must be transmitted within a definitescope. Presently, you can define a multicast forwarding range by:To do... Use the command... RemarksEnter system view system-view -Configure a multicaststatic routeip rpf-route-static [ vpn-instancevpn-instance-name ] source-address { mask |mask-length } [ protocol [ process-id ] ][ route-policy policy-name ] { rpf-nbr-address |interface-type interface-number } [ preferencepreference ] [ order order-number ]RequiredNo multicast staticroute configuredby default.To do... Use the command... RemarksEnter system view system-view -Configure the device to selecta route based on the longestmatchmulticast longest-match OptionalIn order of routing tableentries by defaultConfiguring multicast loadsplittingmulticast load-splitting{ source | source-group }OptionalDisabled by defaultTo do... Use the command... RemarksEnter system view system-view -Enter VPN instance view ip vpn-instancevpn-instance-name-Configure the device to selecta route based on the longestmatchmulticast longest-match OptionalIn order of routing tableentries by defaultConfigure multicast loadsplittingmulticast load-splitting{ source | source-group }OptionalDisabled by default
