3Com 7750 Series - page 248

3Com Switch 7750 Series
Command Reference Guide – MAC Address Table Chapter 1 MAC Address Table Configuration Commands
1-9
removed, the switch broadcasts the packet through all its ports in the VLAN which
the packet belongs to. This decreases the operating performance of the switch.
z If the aging time is too long, MAC address entries may still exist even if they turn
invalid. This causes the switch to be unable to update its MAC address table in
time. In this case, the MAC address table cannot reflect the position changes of
network devices in time.
Example
# Set the aging time for MAC address entries to 500 seconds.
<3Com> system-view
System View: return to User View with Ctrl+Z.
[3Com] mac-address timer aging 500