Configuring Multicast Routing and Forwarding 707
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CAUTION: When configuring a multicast static route, you cannot designate an
RPF neighbor by specifying an interface (by means of the interface-type
interface-number command argument combination) if the interface type of that
switch is Loopback or VLAN-interface; instead, you can designate an RPF neighbor
only by specifying an address (rpf-nbr-address).
Configuring a Multicast
Route Match Rule
If more than one route exists to the same subnet, a router chooses a route based
on the sequence of route configuration.
Follow these steps to configure a multicast route match rule:
Configuring Multicast
Load Splitting
With the load splitting feature enabled, multicast traffic will be evenly distributed
among different routes.
Follow these steps to configure multicast load splitting:
Configuring a Multicast
Forwarding Range
Multicast packets do not travel without a boundary in a network. The multicast
data corresponding to each multicast group must be transmitted within a definite
scope.
You can configure a forwarding boundary specific to a particular multicast group
on all interfaces that support multicast forwarding. A multicast forwarding
boundary sets the boundary condition for the multicast groups in the specified
range. If the destination address of a multicast packet matches the set boundary
condition, the packet will not be forwarded. Once a multicast boundary is
configured on an interface, this interface can no longer forward multicast packets
(including packets sent from the local device) or receive multicast packets.
Follow these steps to configure a multicast forwarding range:
To do… Use the command… Remarks
Enter system view system-view -
Configure a multicast
static 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 ]
Required
No multicast
static route
configured by
default.
To do… Use the command… Remarks
Enter system view system-view -
Configure the device to select
a route based on the longest
match
multicast longest-match Required
In order of routing table
entries by default
To do… Use the command… Remarks
Enter system view system-view -
Configuring multicast load
splitting
multicast load-splitting
{ source | source-group }
Required
Disabled by default
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