3Com 8807 Command Reference Manual page 599

Multicast Common Configuration Commands 597
source-address: Source address.
source-mask: Mask of source address.
source-mask-length: Mask length of source address.
incoming-interface: Specifies incoming interface for the multicast forward entry.
vlan-interface interface-number: VLAN virtual interface number.
Description
Use the reset multicast routing-table command to clear route entries from the
core multicast routing table, as well as MFC forwarding entries.
You can type in source address first and group address after in the command, as
long as they both are valid addresses. The system prompts error information if you
type in invalid addresses.
Related command: reset pim routing-table, reset multicast forwarding-table
and display multicast forwarding-table.
Example
# Clear the route entry with address of 225.5.4.3 from the core multicast routing
table.
<SW8800> reset multicast routing-table 225.5.4.3