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Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
2-14 MAC Table
Switching of frames is based on the DMAC address contained in the frame. The switch builds a table that
maps MAC addresses to switch ports for knowing which ports the frames should go to (based on the
DMAC address in the frame). This table contains both static and dynamic entries.
The static entries are configured by the network administrator if the administrator wants to do a fixed
mapping between the DMAC address and switch ports.
The frames also contain a MAC address (SMAC address), which shows the MAC address of the
equipment sending the frame. The SMAC address is used by the switch to automatically update the MAC
table with these dynamic MAC addresses. Dynamic entries are removed from the MAC table if no frames
with the corresponding SMAC address have been seen after a configurable age time.
Web Interface
To configure the MAC Address Table via the web UI:
Aging Configuration
1. Click Configuration.
2. Specify the Disable Automatic Aging and Aging Time.
3. Click Apply.
MAC Table Learning
1. Click Configuration.
2. Specify the Port Members (Auto, Disable, Secure).
3. Click Apply.
Static MAC Table Configuration
1. Click Configuration and Add New Static Entry.
2. Specify the VLAN IP and Mac address, Port Members.
3. Click Apply.
Figure 2-14: MAC Address Table Configuration page
Parameter descriptions:
Aging Configuration:
By default, dynamic entries are removed from the MAC table after 300 seconds.
This removal is also called aging. 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 the Disable Automatic Aging checkbox.