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Step
1.
Enter system view.
2.
Configure the device to select
the RPF route based on the
longest match.
3.
Configure IPv6 multicast load
splitting.
Configuring an IPv6 multicast forwarding range
IPv6 multicast packets do not travel infinitely in a network. The IPv6 multicast data of each IPv6 multicast
group must be transmitted within a definite scope. You can define an IPv6 multicast forwarding range by
doing one of the following:
Specifying boundary interfaces, which form a closed IPv6 multicast forwarding area.
•
•
Setting the minimum hop limit value required for an IPv6 multicast packet to be forwarded.
You can configure the forwarding boundary for a specific IPv6 multicast group or an IPv6 multicast group
with the scope field in its group address being specified on all interfaces that support IPv6 multicast
forwarding. A multicast forwarding boundary sets the boundary condition for the IPv6 multicast groups
in the specified range or scope. If the destination address of an IPv6 multicast packet matches the set
boundary condition, the packet will not be forwarded. Once an IPv6 multicast boundary is configured
on an interface, this interface can no longer forward IPv6 multicast packets (including those sent from the
local device) or receive IPv6 multicast packets.
You can also configure the minimum hop limit required for an IPv6 multicast packet to be forwarded on
all interfaces that support IPv6 multicast forwarding. Before being forwarded from an interface, every
IPv6 multicast packet (including every IPv6 multicast packet sent from the local device) undergoes a hop
limit check:
If the hop limit value of the packet (already decremented by 1 on this router) is greater than or equal
•
to the minimum hop limit value configured on the interface, the packet is forwarded.
•
If the hop limit value of the packet is less than the minimum hop limit value configured on the
interface, the packet is discarded.
To configure an IPv6 multicast forwarding range:
Step
1.
Enter system view.
2.
Enter interface view.
Command
system-view
multicast ipv6 longest-match
multicast ipv6 load-splitting
{source | source-group }
Command
system-view
interface interface-type
interface-number
378
Remarks
N/A
Optional.
The route with the highest priority is
selected as the RPF route by
default.
Optional.
Disabled by default.
Remarks
N/A
N/A
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Troubleshooting
