INS_CNXE2GE2TX8MSPOE 11 Jan 2021 PAGE 177
INSTALLATION AND OPERATION MANUAL
CNXE2GE2TX8MSPOE
TECH SUPPORT: 1.888.678.9427
MAC Table Learning
If the learning mode for a given port is grayed out, it means another module is in control of the
mode, and thus the user cannot change the configurations. An example of such a module is MAC-
Based authentication under 802.1X.
Configure the port to dynamically learn the MAC address 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 the link used for managing the switch is added to the static Mac table before
changing to secure learning mode, otherwise the management link will be lost and
can only be restored by using another non-secure port or by connecting to the
switch via the serial interface.