Allied Telesis AT-S21 - Manual (Page 68)

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4-14
Any port may have more than one multicast address
associated with it. The number of multicast addresses you can
configure is limited to ten (10) per switch.
Omega confirms a successful add with the following message:
To change ports for multicasts
To change the ports for a multicast address, for example, if you want
to increase the number of ports from 5 to 6, start all over by following
the procedure to configure a multicast address and add all six ports.
To delete a multicast address
1. Select MAC Address Table > Multicast addresses to
display the menu in Figure 4-11 on page 4-13.
2. Enter the MAC address you want to delete in the Delete MAC
address field.
After you delete a multicast address, wait and the display
updates with the changed information.