inS_CnGE28FX4TX_rEv–
08/31/12 PAGE 78
INSTALLATION AND OPERATION MANUAL
CNGE28FX4TX
Tech SupporT: 1.888.678.9427
Configure aging time by entering a value here in seconds; for example, Age time seconds.
The allowed range is 10 to 1000000 seconds.
Disable the automatic aging of dynamic entries by checking Disable automatic aging.
MAC Table Learning
If the learning mode for a given port is grayed out, another module is in control of the mode, so
that the user cannot change it. An example of such a module is the MAC-Based Authentication
under 802.1X.
Each port can do learning based upon the following settings:
Label
Description
Auto
Learning is done automatically as soon as a frame with unknown
SMAC is received.
Disable
No learning is done.
Secure
Only static MAC entries are learned, all other frames are dropped.
Note: Make sure that the link used for managing the switch
is added to the Static Mac Table before changing to secure
learning mode, otherwise the management link is lost and
can only be restored by using another non-secure port or by
connecting to the switch via the serial interface.
