Dynamic Mac Aging - Siemens SIMATIC NET SCALANCE S615 Configuration Manual

Configuring with Web Based Management
4.7 "Layer 2" menu
4.7.3

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 data 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 is connected to a different
port.
If the check box is not enabled, a device does not delete learned addresses automatically.
Description of the displayed boxes
The page contains the following boxes:
● Dynamic MAC Aging
Enable or disable the function for automatic aging of learned MAC addresses.
● Aging Time[s]
Enter the time in seconds in steps of 15. After this time, a learned address is deleted if the
device does not receive any further frames from this sender address.
Range of values: 15 - 630 (seconds)
Note
Rounding of the values, deviation from desired value
When you input the Aging Time, note that it is rounded to correct values. If you enter a value
that cannot be divided by 15, the value is automatically rounded down.
Steps in configuration
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.
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SCALANCE S615 Web Based Management
Configuration Manual, 11/2019, C79000-G8976-C388-08