IGS-9168GP User’s Manual
ORing Industrial Networking Corp
132
Aging Configuration
Aging enables the switch to track only active MAC addresses on the network and flush out
MAC addresses that are no longer used, thereby keeping the table current. By default, aged
entries are removed after 300 seconds. You can configure aging time by entering a value in the
Age Time
box in seconds. The allowed range is 10 to 1000000 seconds. You can also disable
the automatic aging of dynamic entries by checking
Disable Automatic Aging
.
MAC Table Learning
The switch can add the address and port on which the packet was received to the MAC table if
the address does not exist in the table by examining the source address of each packet
received on a port. This is called learning. It allows the MAC table to expand dynamically. 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.
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.
Static MAC Table Configurations
This tablet shows the static entries in the MAC table which can contain up to 64 entries. Using
static MAC address entries can reduce broadcast packets remarkably and are suitable for
networks where network devices seldom change. You can manage the entries in this page.
The MAC table is sorted first by VLAN ID and then by MAC address.