Mac Management; Static Mac Settings - TRENDnet TI-PG1284i User Manual

TRENDnet User's Guide
Apply Click this button to take effect the settings.
Refresh Click this button to begin configuring this screen afresh.
Management Host List
This field displays a sequential number for each management
No.
host.
Management
This field displays the management host.
Host
Action Click the Delete button to remove the specified entry.

MAC Management

Dynamic Address:
The MAC addresses are learnt by the switch. When the switch receives frames, it will
record the source MAC, the received port and the VLAN in the address table with an age
time. When the age time is expired, the address entry will be removed from the address
table.
Static Address:
The MAC addresses are configured by users. The static addresses will not be aged out by
the switch; it can be removed by user only. The maximum static address entry is up to
256.
The MAC Table (a MAC table is also known as a filtering database) shows how frames are
forwarded or filtered across the Switch's ports. When a device (which may belong to a
VLAN group) sends a packet which is forwarded to a port on the Switch, the MAC address
of the device is shown on the Switch's MAC Table. It also shows whether the MAC address
is dynamic (learned by the Switch) or static (manually entered).
The Switch uses the MAC Table to determine how to forward frames. See the following
figure.
1. The Switch examines the received frame and learns the port from which this
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source MAC address came.
2. The Switch checks to see if the frame's destination MAC address matches a
source MAC address already learnt in the MAC Table.

If the Switch has already learnt the port for this MAC address, then it
forwards the frame to that port.

If the Switch has not already learnt the port for this MAC address, then
the frame is flooded to all ports. If too much port flooding, it may lead
to network congestion.

If the Switch has already learnt the port for this MAC address, but the
destination port is the same as the port it came in on, then it filters the
frame.
Figure MAC Table Flowchart
Default Settings
The default MAC address table age time is 300 seconds.
The Maximum static address entry

Static MAC Settings

CLI Configuration
Node Command
enable show mac-address-table
aging-time
TI-PG1284i
is 256.
Description
This command displays the current MAC
address table age time.
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