
1 mac age interval
type the number of seconds that an inactive mac address remains in the switch’s address table. the valid range is 300~765 seconds. default is 300 seconds.

2 broadcast storm filtering
in this page you can configure broadcast storm settings.
(1) press [edit] to configure the broadcast storm filter mode.
(2) press space key to choose the threshold value.
the valid threshold value are 5%,10%,15%,20%,25% and no.

3 max bridge transmit delay bound
(1) max bridge transmit delay bound: limit the packets queuing time in switch. if enable, the packets queued exceed will be drop. press space key to set the time. this valid value are 1sec, 2sec, 4sec and off. default is off.
(2) low queue delay bound: limit the low priority packets queuing time in switch. if enable, the low priority packet stays in switch exceed low queue max delay time, it will be sent. press space key to enable or disable this function.
(3) low queue max delay time: to set the time that low priority packets queuing in switch. default max delay time is 255ms. the valid range is 1~255 ms.
make sure of “max bridge transit delay bound control” is enabled before enable low queue delay bound, because low queue delay bound must be work under “max bridge transit delay bound control” is enabled situation.

4 port security
a port in security mode will be “locked” without permission of address learning. only the incoming packets with smac already existing in the address table can be forwarded normally. you can disable the port from learning any new mac addresses, then use the static mac addresses screen to define a list of mac addresses that can use the secure port.

(1) select [edit].
(2) press space key to choose enable / disable item.
(3) press ctrl+a to go back action menu line.
(4) select [save] to save all configure value.
(5) you can press [next page] to configure port9~port26 and press [previous page] to return to last page.