Alcatel-Lucent 6850-48 网络指南

Using Static Multicast MAC Addresses

Managing Source Learning

page 2-8

OmniSwitch AOS Release 6 Network Configuration Guide

If a a MAC address, slot/port and VLAN ID are not specified with this form of the command, then all 
static multicast addresses are deleted. For example, the following command deletes all static MAC 
addresses, regardless of their slot/port or VLAN assignments:

-> no mac-address-table static-multicast

To verify the static MAC address configuration and other table entries, use the 

 commands. For more information about these commands, 

see the OmniSwitch CLI Reference Guide.

Static multicast MAC addresses are not assigned to physical ports that belong to a link aggregate. Instead, 
they are assigned to a link aggregate ID that represents a collection of physical ports. This ID is specified 
at the time the link aggregate of ports is created and when using the mac-address-table static-multicast 
command. 

To configure a static multicast MAC address on a link aggregate ID, use the 

 command with the linkagg keyword to specify the link aggregate ID. For example, the follow-

ing command assigns a static multicast MAC address to link aggregate ID 2 associated with VLAN 455:

-> mac-address-table static-multicast 01:95:2A:00:3E:4C linkagg 2 455

For more information about configuring a link aggregate of ports, see 

 and 

When a static multicast MAC address is configured and saved (typically through the snapshot or write 
memory commands), the mac-address-table static-multicast command captured in the ASCII text file or 
boot.cfg file will include an additional group parameter. This parameter indicates the number of the multi-
cast group that the switch has assigned to the multicast MAC address for the given VLAN association. For 
example:

-> mac-address-table static-multicast 01:25:9a:5c:2f:10 1/24 2/1-6 20 group 1

In this example, the multicast MAC address, 

01:25:9a:5c:2f:10

, is associated with ports 1/24 and 2/1 

through 2/6 in VLAN 20.

 

The additional group parameter value shown in the example indicates that the 

switch will assign the multicast-VLAN association created with the mac-address-table static-multicast 
to multicast group one.

Note that if the port assigned to a multicast MAC address is down or administratively disabled when the 
configuration snapshot or write memory command is used, the multicast MAC address is not saved to 
the resulting ASCII file or boot.cfg file.

Each multicast MAC address association with a VLAN is treated as a unique instance and is assigned a 
multicast group number specific to that instance. This is also the case when the same multicast address is 
associated with more than one VLAN; each VLAN association is assigned a multicast group number even 
though the MAC address is the same for each instance.