Dynamic Mac Aging - Siemens SCALANCE W780 Configuration Manual

Configuring with Web Based Management
5.7 "Layer 2" menu
● Acceptable Frames
Specify which types of frames will be accepted. The following alternatives are possible:
– Tagged Frames Only
– All
● Ingress Filtering
Specify whether the VID of received frames is evaluated
You have the following options:
– Enabled
– Disabled
Procedure
1. In the row of the port to be configured, click on the relevant cell in the table to configure it.
2. Enter the values to be set in the input boxes as follows.
3. Select the values to be set from the drop-down lists.
4. Click the "Set Values" button.
5.7.2

Dynamic MAC Aging

Protocol settings and switch functionality
The device automatically learns the source addresses of the connected nodes. This
information is used to forward frames to the nodes specifically involved. This reduces the
network load for the other nodes.
If a device does not receive a frame whose source address matches a learnt address within
a certain time, it deletes the learnt address. This mechanism is known as "Aging". Aging
prevents frames being forwarded incorrectly, for example when an end device (for example a
programming device) is connected to a different port.
If the check box is not enabled, a device does not delete learnt addresses automatically.
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The device discards all untagged frames. Otherwise, the forwarding rules apply
according to the configuration.
The device forwards all frames.
The VLAN ID of received frames decides whether they are forwarded: To forward a
VLAN tagged frame, the receiving port must be a member in the same VLAN. Frames
from unknown VLANs are discarded at the receiving port.
All frames are forwarded.
SCALANCE W780/W740 to IEEE 802.11n Web Based Management
Configuration Manual, 03/2015, C79000-G8976-C267-08