Configuring Rpf Check Failure Processing - HP A8800 Configuration Manual

Step
2. Configure the maximum
number of forwarding entries
in the multicast forwarding
table.
3. Configure the maximum
number of downstream nodes
for a single multicast
forwarding entry.
Configuring the multicast forwarding table size in a VPN instance
Step
1. Enter system view.
2. Enter VPN instance view.
3. Configure the maximum
number of forwarding entries
in the multicast forwarding
table.
4. Configure the maximum
number of downstream nodes
for a single multicast
forwarding entry.

Configuring RPF check failure processing

Multicast data packets that have failed an RPF check may need to be processed differently in different
networking environments instead of being simply dropped. You can enable forwarding IPv6 multicast
packets that failed RPF check in the VLAN or enable delivering them to the CPU.
Configuration guidelines
After you enable forwarding multicast packets that failed RPF check in the VLAN:
Use the reset multicast forwarding-table command to clear all the forwarding entries in the
•
multicast forwarding table. Otherwise this configuration cannot take effect.
If the VLAN enabled with the multicast programs-on-demand function is a multicast VLAN, you need
•
to use the reset igmp-snooping group command to clear all the IGMP snooping multicast group
information in the VLAN. Otherwise this configuration cannot take effect. For more information
about the reset igmp-snooping group command, see IP Multicast Command Reference.
If the VLAN enabled with the multicast programs-on-demand function is not a multicast VLAN, and
•
a Layer 3 multicast routing protocol (such as IGMP or PIM) has been configured on the
Command
multicast forwarding-table
route-limit limit
multicast forwarding-table
downstream-limit limit
Command
system-view
ip vpn-instance vpn-instance-name
multicast forwarding-table
route-limit limit
multicast forwarding-table
downstream-limit limit
70
Remarks
Optional.
The default upper limit varies with
the system operating modes and
views.
•
In system view:
In SPE or SPC
mode—16384.
In hybrid mode—13824.
•
In VPN instance view:
The upper limit is 1024 in each
system operating mode.
Optional.
128 by default.
Remarks
N/A
N/A
13824 by default.
Optional.
128 by default.