3Com 5500 SI - Switch - Stackable, Configuration Manual

Page: 325 / 686

Common Multicast Configuration 325
Multicast Source Deny
Configuration
The purpose of the multicast source deny feature is to filter out multicast packets on
an unauthorized multicast source port to prevent the user connected to the port from
setting up a multicast server without permission.
Enabling Multicast Source Deny
Clearing MFC
Forwarding Entries or
Statistics Information
Use the command in Table 325 to clear the multicast forwarding cache (MFC) forward
entries or statistics information.
Perform the following configuration in User View.
Clearing Route Entries
From The Core Multicast
Routing Table
Use the command in Table 326 to clear route entries from the core multicast routing
table, as well as MFC forwarding entries.
Perform the following configuration in User View.
Table 324 Enable multicast source deny
Operation Command Description
Enter system view system - view —
Enable multicast source
deny in system view multicast-source-deny [
interface interface-list ]
Required
Executing this command without
specifying the
interface-list argument
will enable the feature globally (that
is, on all the ports of the switch).
Executing this command with the
interface-list argument specified will
enable the feature on the specified
port.
By default, this feature is disabled
globally.
Enter Ethernet port view interface interface_type
interface_num
interface_type and interface_num are
the type and number of a port.
Enable multicast source
deny in Ethernet port view multicast-source-deny Optional
By default, this feature is disabled on
all the ports of the switch.
Table 325 Clearing MFC forwarding entries or its statistic information
Operation Command
Clear MFC forwarding
entries or its statistic
information
reset multicast forwarding-table [ statistics ] {
all | { group_address [ mask { group_mask |
group_mask_length } ] | source_address [ mask {
source_mask | source_mask_length } ] |
incoming-interface interface_type interface_number }
* }
Table 326 Clearing routing entries from multicast routing table
Operation Command
Clear routing entries
from multicast routing
table
reset multicast routing-table { all | {
group_address [ mask { group_mask |
group_mask_length } ] | source_address [ mask {
source_mask | source_mask_length } ] | {
incoming-interface interface_type interface_number }
} * }