H3C Technologies H3C S12500 Series Switches - Manual (Page 87)

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To enable delivering packets that failed RPF check to the CPU:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enable delivering packets that
failed RPF check to the CPU.
multicast rpf-fail-pkt trap-to-cpu Disabled by default.
NOTE:
This configuration does not take effect on multicast packets forwarded by BIDIR-PIM entries.
Tracing a multicast path
You can run the mtracert command to trace the path along which the multicast traffic flows from a given
first-hop router to the last-hop router.
To trace a multicast path:
Task Command Remarks
Trace a multicast path.
mtracert source-address
[ [ last-hop-router-address ]
group-address ]
Available in any view.
Displaying and maintaining multicast routing and
forwarding
CAUTION:
The reset commands might cause multicast transmission failures.
To display and maintain multicast routing and forwarding:
Task Command Remarks
Display multicast
boundary information.
display multicast [ all-instance | vpn-instance
vpn-instance-name ] boundary [ group-address
[ mask | mask-length ] ] [ interface interface-type
interface-number ] [ | { begin | exclude | include }
regular-expression ]
Available in any view.
Display multicast
forwarding table
information (in
standalone mode).
display multicast [ all-instance | vpn-instance
vpn-instance-name ] forwarding-table
[ source-address [ mask { mask | mask-length } ] |
group-address [ mask { mask | mask-length } ] |
incoming-interface { interface-type interface-number
| register } | outgoing-interface { exclude | include |
match } { interface-type interface-number | register }
| statistics | slot slot-number ] * [ port-info ] [ |
{ begin | exclude | include } regular-expression ]
Available in any view.