H3C Technologies H3C S12500 Series Switches - Manual (Page 85)

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• When you configure a static multicast MAC address entry in system view, the configuration takes
effect on the specified interface. When you configure a static multicast MAC address entry in
interface view or port group view, the configuration takes effect on only the current interface or
interfaces in the current port group.
Configuration procedure
To configure a static multicast MAC address entry in system view:
Step Command Remarks
1. Enter system view. system-view N/A
2. Configure a static multicast
MAC address entry.
mac-address multicast
mac-address interface interface-list
vlan vlan-id
No static multicast MAC address
entries existing by default.
To configure a static multicast MAC address entry in interface view:
Step Command Remarks
1. Enter system view. system-view N/A
2. Enter Ethernet interface/Layer
2 aggregate interface view or
port group view.
• Enter Ethernet interface/Layer
2 aggregate interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
In Ethernet interface view or Layer
2 aggregate interface view, the
configuration takes effect on only
the current interface. In port group
view, the configuration takes effect
on all ports in the port group.
3. Configure a static multicast
MAC address entry. mac-address multicast
mac-address vlan vlan-id No static multicast MAC address
entries exist by default.
Configuring RPF check failure processing
After a multicast packet fails RPF check on a VLAN interface, it might need to be processed differently in
different networking environments instead of being simply dropped. You can enable forwarding
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 you configure the multicast programs-on-demand function in a multicast VLAN, you must 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
corresponding VLAN interface, you need to use the reset igmp group port-info command to clear