R3166-R3206-HP High-End Firewalls Network Management Configuration Guide-6PW101

397
Configuring multicast routing and forwarding
Configuration Prerequisites
Before configuring 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).
Before configuring multicast routing and forwarding, prepare the following data:
• The minimum TTL value required for a multicast packet to be forwarded
• The maximum number of downstream nodes for a single multicast forwarding table entry
• The maximum number of entries in the multicast forwarding table
Configuring multicast static routes
By configuring a multicast static route for a given multicast source, you can specify an RPF interface or an
RPF neighbor for multicast traffic from that source.
Follow these steps to configure a multicast static route:
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.
CAUTION:
W
hen confi
g
urin
g
a multicast static route, you cannot specify an RPF neighbor by providing the type and
number (
interface-type interface-number ) of the interface connecting the RPF neighbor if the interface type
of the RPF neighbor is Ethernet, Layer 3 aggregate, Loopback, RPR, 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.
By configuring per-source or per-source-and-group load splitting, you can optimize the traffic delivery
when multiple data flows are handled.
Follow these steps to configure a multicast routing policy in the public instance:
To do... Use the command...
Remarks
Enter system view system-view —
Configure the device to select the
RPF route based on the longest
match
multicast longest-match
Required
The route with the highest priority is
selected as the RPF route by default
Configure multicast load splitting
multicast load-splitting { source |
source-group }
Optional
Disabled by default