H3C Technologies H3C S10500 Series Switches - Manual (Page 100)

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Configuring the multicast forwarding table size for the public network
Follow these steps to configure the multicast forwarding table size for the public network:
To do... Use the command... Remarks
Enter system view system-view —
Configure the maximum number of
entries in the multicast forwarding
table
multicast forwarding-table
route-limit limit Optional
2000 by default.
Configure the maximum number of
downstream nodes for a single
multicast forwarding entry
multicast forwarding-table
downstream-limit limit Optional
128 by default.
Configuring the multicast forwarding table size in a VPN instance
Follow these steps to configure the multicast forwarding table size in a VPN instance:
To do... Use the command... Remarks
Enter system view system-view —
Enter VPN instance view ip vpn-instance vpn-instance-name —
Configure the maximum number of
entries in the multicast forwarding
table
multicast forwarding-table
route-limit limit Optional
2000 by default.
Configure the maximum number of
downstream nodes for a single
route in the multicast forwarding
table
multicast forwarding-table
downstream-limit limit Optional
128 by default.
Tracing a multicast path
You can run the mtracert command to trace the path down which the multicast traffic flows from a given
first-hop router to the last-hop router.
To do… Use the command… Remarks
Trace a multicast path
mtracert source-address
[ [ last-hop-router-address ]
group-address ]
Required
Available in any view
Displaying and maintaining multicast routing and
forwarding
To do... Use the 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