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3.2.11 MAC ADDRESS
Switching of frames is based upon the DMAC address contained in the frame. The switch builds up a table that maps
MAC addresses to switch ports for knowing which ports the frames should go to (based upon 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 frame with the corresponding SMAC address has
been seen after a configurable age time.
Entries in the MAC Table are shown on this page. The MAC Table contains up to 8192 entries, and is sorted first
by VLAN ID, then by MAC address.
Navigating the MAC Table
Each page shows up to 999 entries from the MAC table, default being 20, selected through the "entries per page"
input field. When first visited, the web page will show the first 20 entries from the beginning of the MAC Table. The
first displayed will be the one with the lowest VLAN ID and the lowest MAC address found in the MAC Table.
The "Start from MAC address" and "VLAN" input fields allow the user to select the starting point in the MAC Table.
Clicking the Refresh button will update the displayed table starting from that or the closest next MAC Table match.
In addition, the two input fields will - upon Refresh a button click - assume the value of the first displayed entry,
allowing for continuous refresh with the same start address.
The >> will use the last entry of the currently displayed VLAN/MAC address pairs as a basis for the next lookup.
When the end is reached the text "No more entries" is shown in the displayed table. Use the |<< button to start
over.
MAC Table Columns
Type
Indicates whether the entry is a static or a dynamic entry.