Allied Telesis AT-S63 - Manual (Page 156)

Chapter 13: IGMP Snooping
156 Section II: Advanced Features
addresses, leaving no room for dynamic or static MAC addresses.
The range is 1 address to 2048 addresses. The default is 256
multicast addresses.
4. Click Apply.
5. To permanently save the change, return to the General tab on the
System page and click Save Changes.
For more information about what the Save Changes button does,
refer to ”Saving Your Parameter Changes” on page 36.