Layer 2" Menu; Dynamic Mac Aging - Siemens SIMATIC NET SCALANCE S615 Configuration Manual

4.6

"Layer 2" menu

4.6.1

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.
Description
The page contains the following boxes:
● "Dynamic MAC Aging" check box
Enable or disable the function for automatic aging of learned MAC addresses:
● "Aging Time [s]" input box
Enter the time in seconds. After this time, a learned address is deleted if the device does
not receive any further frames from this sender address. The range of values is from 10
seconds to 1000000 seconds
Procedure
1. Select the "Dynamic MAC Aging" check box.
2. Enter the time in seconds in the "Aging Time [s]" input box.
3. Click the "Set Values" button.
SCALANCE S615 Web Based Management
Configuration Manual, 05/2015, C79000-G8976-C388-02
Configuring with Web Based Management
4.6 "Layer 2" menu
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